CA2016011A1 - Radio transceiver with optional dsplay - Google Patents
Radio transceiver with optional dsplayInfo
- Publication number
- CA2016011A1 CA2016011A1 CA002016011A CA2016011A CA2016011A1 CA 2016011 A1 CA2016011 A1 CA 2016011A1 CA 002016011 A CA002016011 A CA 002016011A CA 2016011 A CA2016011 A CA 2016011A CA 2016011 A1 CA2016011 A1 CA 2016011A1
- Authority
- CA
- Canada
- Prior art keywords
- display
- display module
- housing
- transceiver
- board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3833—Hand-held transceivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/7246—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions by connection of exchangeable housing parts
Abstract
ABSTRACT
A digitally controller radio transceiver includes a housing including a front cover provided with a display port; a main controller board mounted within the housing; an optional display board attached to an interior surface of the front cover adjacent said display port, said display board electrically connected to said main controller board by pressure fit connection; a removable display escutcheon plate mounted on an exterior surface of the cover, overlying the display port; and fastening means extending through the cover and connecting the display board to the display escutcheon plate.
Removal of omission of the display board is automatically sensed by the radio transceiver's internal microprocessor which operates accordingly.
In one embodiment the transceiver program store may be loaded via an external connector to customize the microprocessor instruction code for the presence or absence of a display.
A digitally controller radio transceiver includes a housing including a front cover provided with a display port; a main controller board mounted within the housing; an optional display board attached to an interior surface of the front cover adjacent said display port, said display board electrically connected to said main controller board by pressure fit connection; a removable display escutcheon plate mounted on an exterior surface of the cover, overlying the display port; and fastening means extending through the cover and connecting the display board to the display escutcheon plate.
Removal of omission of the display board is automatically sensed by the radio transceiver's internal microprocessor which operates accordingly.
In one embodiment the transceiver program store may be loaded via an external connector to customize the microprocessor instruction code for the presence or absence of a display.
Description
45~R00612 2 ~
9.6-157 OP~Tl:0~ DISP~
C~S2;~
l~i8 applls~at~ora i~ rol~t~d to tha ollowlng copendin~ commor~ly--Q~lgn~d ~ppllcaSls~ filed concurre~tly herawlth: ~-Serial No . _,_ o~ EIodsdon et al ( attorney dock~t no . 460154; GES dock~t no ~ 45-l~-611 ); and 5eri~1 No. ;_ of Szc:zutkowski ~lt al ( attorno~f doc:ket no . 46 156; GP: docXat no .
~LS-MR- 609 3 .
Th~ coa te~r~t~ o thoe~o two r~l~t~d appllca'c~on~
ld~rlti~ 31 abovo ~ro ~stcp~ ly 13lcorporate~d lloroln by re~ ro~sc~.
T~18 appllc:atlon ~8 al80 r~lated to com~or~ly-a~ d lJ.S. Pa~ent ~pplication s~rlal no.
07/183,212 fll~d 19 April 1988 ln tho name~ c~ Ingh~m ~Atto~y ~ock~t no. 46-~SS; G~3 dock~t no. 45-MR-SSl).
~ t9 l~ nv~n~lo~ x~latas g2ne~r~11y to radlo tra~s~olYe~ unite~ d in p~ticular, to ~ radio .
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~, , ' . ' ' 4 5ME~û 0 6 1 2 transc~iver which may be reco~f:Lgur13d r~l~tiYely ea~lly fxor~ one~ havlng ~ di~play capabillty ts~ a lower co~t v~rl3io3l w~lc:h do~ ns:~t hav~ a di~pl~y.
1~ inv~ntloll al~o rela'c~s to ~ r~dlo tran~ceiYer construet~ on which facilitat~ the incorpor~tistl or omisE3ion o a display capablllty during productlon.
Fc-r marX~tiny and oth~r r~a~on~, maaluacturor~
of radio c:ommunlcatlon~ d~vlc~ typic~lly o~E~er s~v~ral d:lffore~t coniguration~ fo~ ~ach cos~unu~lica1:ions procluct manufacturç~d. A particular mod~l of racllo transceiver may have a "basisn or minim~l con~iguratlon but may optionally b~3 provided with additlonal eatures or nopt:Lons" at additional cc~t .
For ~a~ampl~, ~ ba~ic tran~ iv~r conflguratlon may provld~ communication~ over a llmit~d number of commu~icatio~s cha~l~ for ba~31c radio transmitting a~sd rec~iving ~unction~ r~uired by all us~rs. Some ~ser~ may, how~vor, havo addltion~l re~uiram~nt~
rs~irl~g ~t31dltional ~Qaturos -- ~u~:h tl~ addltio~al c:ommunicatlo~ ch~ , r~ce~lv~r ch~ l sGanning, di~play cap~llity and 80 0~. Th~ abilit:y of ~
masl~fsctur~r to provido ~ucl~ addit~ onal "optior~a"
p~r~lt~ lncre~oE~ ~n the 1e~ibllity, v~r~atility, d~sirability ar~d rang3 o applica~ion~ oî` ~he produs:t wl~out p~n~lizlng pu~chasartl o~ tho ba3ic c:onflç~uratlon w~th lncroa~d co~t. Purchal~or~ of the~ ba~slc msd~l p~y a mlnl~uim pric~ ~or ~e m:lnlmal corl~lguratlon, w~llo uJ~r~ ~oguirlrlg ~ddition~l ~optlon" ~atur~ p21y an lnc:re~d prl~ based on tho nw~ an~ typ~ o~ option~ ~eguir~d.
In ~ past, add~tional optionE~ w~ro g~narally .
~5MR0061 =
provided by incorporatlng addl tional compon~nt~ and circultry lnto th~ d~vlc~. For ex~mpl~, ln ~le pa~t, ch~ 31 8'CB~ning cap~bility or addlt~onal ope3ra~ing cha~l3 wore added by in~t~lliny additlonal freguç~ncy ~electlon clrcuitry lnto th~
tra~ceiv~r . Simi larly, ~9 ton~ act~vat~d squ21ch option typically r~uired ~ add~ 'cional tOIl~ decoder cirGuit ~o b~ ln~t~ d. Tran~c~iver d~ er~ u~ed modul~r arehlt~c:tur~ to acco~uaodat~ additlo~l plug-in "optlon raodules".
An ~xampl~ o t~li8 de~ign approach i~ the prlor art "MLS~ serie~ radio tr~nsc~iv~rs manufactur~d or -General Electric Co~p~ny by Japan Radlo Corp. The3e "MLS~ transceivers include basic tran~ceiY~r circuitry dispos2d wi~hin a hou~1ng. Th~ front panel as~mbly of thQ tra~ce~var hou~ing was manufactured ~epar~ly, and con~1~t~ o~ parabl~
front pan~l "escut~heon" plate~ al~o r~rred to a~
a control panel). M~chanically mounted to th~
e~cutcheon plate or control panel 1~ a printed circuit bc~rd w~ich plug-coDnect~ to-th~ basic tr~n~c~lv~r circuitry wh~n the ~hcutch~on plst~ i~
m~chanl~lly aste~od to ~h~ hou~lng. Tho e~cutch~on plat~ ~nd a~oc1ated printod circuit board compri~Q~ a module ~eparabl~ ~rom th~
tr~nsc~iver mai~ hou~lng aAd ba~ic circuitry. The mod~l~ lncludoo us~r control~ mounted on the ~cutchoon plate a~d c1rcu1try r~quirod to conn~ct u~er controls mount~d on the plat~ to ~he tr~n~ceiv~ circultry.
S1nce dif~eront ~option~ foatura~ ln ~any cane~
r~guir~ dl~r~nt ~dditlonal us~r control~, d1~or~nt ~od~1~ of e~cutch~o~ plat~ ~od~lo~ wera . ~ ~
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45i~R00612 2 ~ J ~ ~
produced for the nMl.S" serl e f3 tran~c~3ivers. In particular, th~ "MLSn tr~nsc31ver wa~ mad~3 avail~l~
in ~lvçl dl~erent ver~ions: ( 1 ) a two~channel "~a81c" v2r~ion; (2) an 8-c:hazmel ver~loll with th~
scan featur~; (3) a 16-<:ha~el verslon wi~out 3can, and (4) a 16-chanElal version with ~ca~ fe~tura.
1@iVE9 difarenl: interchangea~le ~cutcheor~ pla~e~
wlth different u~r control arrangements corr~spondin~ to the80 five differerlt tran~3ceiver v~r~ion~ wer~ 180 mad~ particular e3cutcheon plate/control pan~l install~d on a partlcular "Ml.S"
transceiVer limit~d the transcéivQr eatures 'che u~r could acce~ or ex~mpl~ sscutch~on plat~s corre~pondin~ tc thQ "MLS" l'eran~ceiver Ve!r8l On8 with 16-ch~n~l capab~lity and no scan eature doe~ not havo a control to actuate the ~can fe!atur~ -- preventi~ig tha U8e~X` from obtainlrlg t~a ib~n~fit o the ~can ~E~atur~. Similarly, the ~sGutc:heon plate21 corre~ponding to th~ 8-charm~l tr~c~iv~r v~r~ion~ do not includ~ usor co~trols to acc~ss mor~ an 8 channel~.
Since all "M~ transcs:~v~3r~ includ~d ldsntical ba~ic tran~3c3iv~r clrcuitry a~d m~in houa~ng, r~lucQd m~nuacturing co~t~ and incroas~d r~liab~l~ty d~rivecl ~rom largo 3cals~ manuacturi~
we~r~ o~tairlad. Sp~iflc purcha~er ~elect~d optionu could be~ provided in a partlcular UYlit simply ~y in~t~ g th~ appropr~at~ Qscutcheon plato modul~
-- a p~oc~dure which could b~ p~r~orm~d in th~ ld i~ do~ired. Incorporatlon oiE t}l~ circuitry p~orming th~ optlon ~unction~ and u~or controls lnt~racting with uuch circulitry wi~in th~
frollt pan~ cutch~on plat~ modul~ p~rmlttod a :, .
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45MRo0612 s ~f~
transceiver to be reconfigured by simply "unplugging" one module and "plugging in" a different rnodule (~urther increasing reliability and decreasing manufacturing c05t~).
Commonly as~igned U.S. Patent Application Serial No. 07/183,212 filed April 19, 1988 identiied above disclose~ an improvement in which e~cutcheon plateæ need not carry additional circuitry providing additional functionality but instead carry differ0nt user control configurations and associated corresponding security circuits. The transceiver microprocessor expects a certain user control configuration based on the t~pe of security circuit instaLled, and disables software-controlled transceiver functionæ not corresponding to the expected control coniguration.
It is also generally known to load a transceiver personality EEPROM via an external connector, see, e.g., commonly assigned U.S. patant no. 4,525,865 to Mears and U.S. patent no. 4,843,588 to Flynn.
Further improYements ara possibla, however.
Most "full--featured" digital radio transceiver~
nowadays include an al~hanurneric display (e.g., an LC~ display panel) because of the variety of differ~nt information that must be displayed.
Transceivers in the past needed only to display a few indications (e.g., c~annel num~er, on/off status and tran~mit/receive status). Modern digital "programmable" transceiver~ of~ering advanced, user-confi~ur~ble features such as DTMF dialing with a tored telephone number li~t, æelection betw¢en different operating modes, and scanning of ,. .
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~5MR006l2 2 ~ 3 ~
user-selectable channel numbers. Such mod2~n transceiver~ by necessity must provide informativa displays -- for the user otherwise would become "lost" in the user interface provided by the transceiver and could not e~fectively '~program" hi 3 selection~. The additional flexibility and power provided by quch advanced communica~ions functions (and the "user-friendly" invocation of 9uch functions u~ing an alphanumeric display panel ) hava become absolutely essential in Many communications applications. It is now, for e~ample, possibl~ to equip a police supervisor with a handheld radio transceiver offering critical ~eature~, ~unctionally and fle~ibility not even available to many main dispatchers only a few years ago. Thi~ additional communications flexibility permits a public service force to respond more rapidly and ef~iciently to emergency situation~.
On the other hand, ome user~ only require rel~tively limited functionality from ~heir radio transc~iver~ and would only be confused by (or are not willing to pay for) additional features. An LCD
display a~embly ~ 8 a rather coRtLy component and therefore ~ub~tantially increases the price of a ra~io tran~ceiver. It has become di~ficult to de3ign a full featured transceiver without a display for mo~t application~, becau~0 many users now demand and require a display and the as~ociated functionality it facilitate~.
It i~ an important ob~ect of this invention to provide a radio tran~ceiver design which facilitates production and/or which p~rmits quick conver ion o an otherwi~ ~tandardized transceiver deslgn rom , ' , ' ' . ' .'~ ~ ' ' .. . . ~ , , .
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~Mr;~co6:L~
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~ 7 on~ which lnclud~ a di~play to ona whlch dae~ no~
have a di~play.
In accordanc~ wi th one~ ~pect o th~ pre~ent lnsrenl:ion, a standa~rcli~d xadio tran~s:01ver can be produced wlt:h all o the lnkernal circu:Ltry and componenlt~ ~ and a~ociated func:tionality~ requt red or a full-eatured premium ~odel wl~ availabl~
optional feature~ lncorporat;ed th~r~ cluding eleetro~ic di~play, ~uch ~, for ex~ , an 1~ or r..EI~ dll8play. Thi8 premium mod~l includ~ a hou~ln5 forme~ with a di~play port, an lnternal display board and an associated display ~c:utcheon plate.
To produc~ a low~r co~t ver~i~n, or to corl~rt 'chl~
model to a lower cc~t ve~r~l~n having no di~play capablllty, all thai: i~ reguir~d 1~ to remove (or not ln~tall~ dl3play bo~rd and display e~cutcheon plate, ~d repl~ce th~ l~tter with (~r in~t,all a~ an original compon~nt) a blanX e~cutcheon plate (pre~erably pla~tic). Slnce th3 dl~play board i8 corm~cted to a m~i~ controller board by a conY~ntional ~l~x lntarcor~ct (or othor ~od~llar conn~ctor), tho display board 1~ an~lly :~emoved (or oml~d), w~l~ r0tainlng ~ub~t~t~ally full op~rational u~ of thQ main controll~r board (without t~ di~play).
In ~ccord~nc~ with a. fur~ r a~poct o the pre~e~t lnvention, rsmoval ~or omi~slon) o:e th~
di~play compon~nta i~ aul:o~a~le~lly ~n~d by th9 transc2~vsr' ~ int~rnal mlcroproca~or. ~ t~
microproc~30r 8~5113e~8 the~ dl~play compon~rlts ar~
pres~Jlt, it oper~to~ in a mod~ providing a di~play intQrfac~ ~nd as~oclated additlon~l functionality.
I, on th~ oth~r hand, th~ mlcroproc~s~ n~o~ tha , :, .
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2 ~
dlsplay comporl~nt~ are Abs~nt ~or have :`all~d), tho tran~c~i~ter could b~ enabled to oper~te in ~
di~ferent mode which provid~ le8f~ fu~ tlonality not re~iring a di~play i~terface~. ~u~, lderltical tran~ce~lYex maln cor~troll~r circuitry can b4 used for transc~iv~r v~sr~ion~ with display component~ arld ~or tra~w~iv~r ~r~rsior~ wlthout dl aplay componerlt~. Thl~ has ~e advantage~ of allowing for a lower co~t v~rsion o an o~h~rwi 0e ~tandard transceiv~r to b~ bul lt u~ g con~no~ parts ~c:ontroller board, mecha}llcal housin~ ection, etc. ) -- and perhap~ moro importantly, u~ing lden~tcal controll~r circuitry and proqra~unlng, merely by rernoving or not ln~tallirlg t~e display board. Only O~lQ v~rsion of tho contrc~ller circui~ry needs i:o be marlu~actur~d, ~ince thi8 circuitry automatically adapt~ to th~ pr~3sancs or absence of di~play compon~rlt~. Only a few simple op~ration~ or~
the manufac~uring floor (e. g., lns~all or not ln ~all a di~play board) are requir~d to provid~
dif~er~nt tr~n~c~iv~r ver 10I18 Wl~ compl~t~ly dlf~r~t ~:ctionalitie~3 and charaGt~ri~tic~.
It i~ thu~ urther î~t lr~ o th~ inventlon that ~e ~lcroproc~or bas~d controll2r hardwar~ i~
d~sign~d to allow op~ration with or ~ithout a di~play, and th~ micre:~procea~30~ ~n~s wh~n no display 1~ pr~ent to detennino that th~ radio 1~ o a certaln typ~ i . e., a non-display v~r~ion.
It 18 anoth~x featur~ o th~ ln~ntion that ln v~nt ~ di~er~ k~ypadl and control pan~ o be used in a non-dlsplay s7arsion of ~e 'cran~coiver, th~8e el~rQent~ ar~ lik~wis~ ~aslly chang~d to ~uit tha cu~tom~r' ~ requirem~nt3.
r)o6l2 2 ~
In one exemplary embodlm~nt, a di~play board incorporat~g the diaplay unit, cill~play dr~ver :lC
and other auppo~ting components, i ~ mounted to an intç~rior surface or back ~lde of a front cov~r o~
th~ tran~c:eiv~r housins7. Th~ di8pl21y board i~
~ecured by four ~cr~ws which s.re insexkad rom ~e interior o the hou~in~ cover, and which extl3nd through hole~ in the cover in~o ~r~aded bore~
f~rmed ln thG dlsplay e~cutch~orL plat~ It wlll thu~ ba apprac$ ated ~at by removing the~e scrQw~, bot:h th~ display board and th~ diaplay escutcheo~
pl~te may be sepax~t~d frem the tran csiver unit ront cover. The display board may then ~e ~epar2ted ro~ th~ main controll~r board by di ~connectlnç~ th9 ~l~x lnt~rcoa~ct . Upon æst~nin~
a blank ~scutcheon plate over the dl~play ar~a or port of ~e front c~rer, u~ing four screws, the reconfiguration to a norl-display version i~
completed .
In the~ e~v~nt a dlf~e~rent front control panal i~
al~o re~uirod or th~ r~c:onfiguration proc~dur~, inte~rchang~ p~n~l~ aro provldad for quick cor~ect/dlncoDn0c:t ~ro~ tho tr~n~c~lv~r houslng.
l~e~ mann~r in which thls i~ accompli~hed ~ th~
8ub~ ~Ct: of colamonly own~d cop~nding application S~rlal P~o. . ( atty. dockat 46-154;
asa~ ee do~ket 45~ 611), filed coneurrontly hor~with, ~ ct matt~r o~ whlch 1 incorporated he~r~i~ by r~r~nco.
Add~tional ob~ OCttl ~nd adv~ntag~ o~ t~o lnvention will b3co~ pp~rent ~rom the d~tail~d da~c2iptlon whicXl ~ollow~.
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~5MP~00~12 2 ~
BRI D~E.S~IPTION OEF T~ DR2~ 5 FlGURE 1 is a per~pectlve view o moblle transceivQr uniLt incoxporating t~a ~ea~ureE~ of the present inverltlon;
FIGU~ 2 1~ a ~ide vlaw, p~rtially in E19Ct10~1, illustrati~g a di~play board a2ld a~oc~ated dl~play ~cutcheon plate in accordanc~ wit~ inv~n~lorl;
FIGl~ 3 is a parltial explodli3d vlew o~ the housing front cover, int0rchangeabl~ blank e~cutcheon pla~e, and irlt~archangeable con~rs:\1 panel in accordance with the invsrltion; arld FI~::U~ 4 i~ ~ sc~ematic blvck dias~ram o exemplary digitally controlled circuitry o transc~ r 10 sho~m in Flgure 1 and inc:luding a main eontxoll~r board;
.
EIGUR~ S is a timing diagram o~ ~xemplary slgrluls eo~ ated b~twa~ microproceEI~or and CD cofitroller showal in E'lgur~ 4;
FIGUR~ 6 18 a sch~matic: flow chart o~ ~x~mplary program control ~3teps r~lat~d to di~play p~oca~eing performad by ~ micropro~:e~sor ~how~ in Figure 4;
EICUR~ 7 iE: ~ schemat~c diagram o u~3r irltor~c~ ~od~ pr2~ent~3d to thl~ uQ~r ~ria koypad 14 and LCD dl~play 122 ln the tran~calve~r conflgured aa ~owx~ in ~igure :L;
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45MP~00612 11 2~
FaGu~ 8 i~ a schema~lc ~ta~e dlagram of u2~r lllt~r~Fac~ st~te~ pr~3se~t~3d to ~18 u~r b~ the trarlsc~31ver wh~n ~ LCD display rnodul~ i3 re!mov~d fro~ ( or not inE~ItQlled ln) the Fiqure~ 1 'cran~celver .
DET~I~ D13 SC~ N O~ DRA~I~
Wi ;:h re4~r~nco to Eiçrur~ ~ulti frsq~ cy, r~dio tran~ce~ v~r ~mit 10 include~ a ~R~tal housing 12 (WhiCh i8 pre~Qrably alumlnum~ having a frs~nt control panel 14 ov~rlying al DTM~ rubb~r keypad 16.
Th~ pad 16 has a number of indlvi~al keys 18 which are ~hown proj ectln5~ through a corr2sporldin~
plurality o~ apertur~ 20 in th~ control panel 14.
~ di~play l~oard (or module3 22 i~ mount~d withir Im upper portlon of the!l hou~lng 12 f or vi~wing meo~ages, ch~r~nel name~, 8tatU8 lndicato~, etc. A
di~play ~scutcheon plat~ 24 i~ securod to the~ front cov~3r 26 o the~ housirlg in ~ m~nner de~crlbed in furl:her d~tail hereln b~lc~w.
A sp2ak~r grill 28 (which ovorlle~ a sp~akor and lolcrophon~ not ohown? io incorpors,tod ix2to tha ~hou~lng 12, dlroctly b~low tho control p~n~l 14. 1~
b~ttory p~ek 30 i8 op~rat~v~ly attached ts) th~ low3r po~tior~ o~ ~ housir~g, and io easily conn~ctq~i:l/di~60~n~cted for replac~ent of battorie~
as n~ed~d.
Othor f~ature~ and/or compono~t~ include a programmoE conrlo~tor 32, a trarl~m:lt button 34, mo~itor butto~ 36, antenn~ 3l3, volumo control ~ob 40 arld froquency s~lec~or hlob 42.
dl~plDIy bo~rd 22 1~ fast~n~d to ~e~
interlor o~ b~ck ~ld~3 o th~ covo~ 26, whil~s th~
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~5M~00612 ~ o ~
di~p1ay ~cutcheon plate 24 i~ mounked orl the e~erior or fron~ ~id~ o~ t~e cover 2~, in ver~lcal al$gnm0nt wlth a dlaplay port 27 ~orm~d ln tha c:over, q~1th ~peci1c reference to ~igure 2, ~h~
dl~play ~scutcheon plate 24 and d1~play board 22 are s~cur~d ox~ oppo~1te ~1de~ o~ 3 front cov~r ~6 by four reta~ nlng screw~ 44 ( onl}r 'cwo o~ whic~l ~ra ~hown i~ Figure~ 2 ) which ara in~rt~d ~rough the displs.y board 22, front cover 26 ~via ~Ihoo'cA bore~
4~ beBt ~een ln Figur~ 3 ) and into thr~ad~d ~ores 4B
provided in re~pective rearwardly pro~ecting bosse~
4~ formed in the escut~heon plat~, located at the respe<:tive corners of` the plate.
To remov~ the board 22, ~crews 44 are~ ramoved, relea~in~ both tlle escutcheon plat~ 24 and display board 22 from th~ ~ront cover 26. Upon disconnectio~ o t}l5 di~play board from ~e maln controller board, vla th2 1ax interc:onnect, ~e entl~e d~play UZlit may be remo~Jed.
Wit~ ref~sren~ to Eiç~ra 3, a blank e)s~utchson plat~ 50 ~8 llluztr~t~d whlch may b~ ~ecurQd 'co th~
ror~ cov~r 26 o ~o houslng 12 i~ plac~ of ~ho di~play qscutch20n plat~ 24. Plate 50 has a ~anerally slmllar hape~ to that o th2 display pla~
24, ancl i~ provided with a ~ tan~:lally id~ntical edge and ~cr~w hol~ configuration ~o that ik ~ay be secur~3d to 'ch~ cov~r 26 in th~ 8alll~ er a~ th~
dl~play plate. Thu~, scraw~ 44 (or ~lightly lon~er 8crewa3 1~ n~cos~ary) ar0 utllized to ~ecur~
plat~ 50 to th~ cove~r 21j Yil~ hol~ 46 and threl~ded bore~ ot ~hown3 ill the blank plat~ 50.
Al~o ahown in E'$gure 3 i~ an altornatively c:onigur0d control panol 52 whlch may b~ utill~ed :In . . : - , . . .
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-- , ~5~ 0~12 place s:~ the pan~l 14 la~ avent tha~c, a~ part o~^
th~ reconflguratlon, the n~n~rlcal k~y~ o~ th~
l~eypad ( or ~xample ), ar~ 3o to b~ omitt~ad . As pr~v~ ously m~ntlonsd, the manner in which panel î4 may ba removed arld panel ~2 (or ot~r differantly co~îlgured, but interchang~able, pan~l) attached la di ~clo~ed in commorlly owned cop~ndlng appl 1 ¢a~ n S~rial P~o. ~attorney doc}Yet no. 46-154; GE: docll:et 45~ 611 ) .
For purpose~ oî ~ in~ention, i~ i8 3uf~iclent to no~e that the con~rol panels 14 and S2 are provided with a locking ba~ 54 which ~xtend~ -acro~s all or at lea~t a part of the upp~r ed~ of the~ paI191, and which upon a3sembly, iB ln~er'ced upwardly into a rece~ed area ormed by ~ Pront cov~r 26, k~ypad 16 and dlsplay (or bl~k) ~cutcheo~ plate 24~ (or 50) . It wlll 'ch~re~or~ be appr~cia~ed that the e~cutch~on plate 24 (or SU) a88i8t in ~ecurin~ whic:h~ver control panel i~
employQd.
It will b~ appr~ciated 1:hat ~rl~m a ma~ufacturirlg ~tandpoint, th~ production o~ a low~r c031t ~3~81c~n s:~f ~e oth~ andnxdlz~d radio tran~ceiver d~gn 18 achi~ved m~r~ly by omiltlng thl3 dl~play board 22 and di~play e~cu~cheo~l plat~ 24 ~a~sd panel 14 i~ applicabls~ and lnstalllhg th~
blank escutch~on plato 50 (ar~d çontrol pan01 52 if applicabl~), but without haYring to change or alt~r th~ mai~ c:ontroller board.
Bri~ly, tran~c0ive~r 10 includ~l convontional micropro~s~ox bas~d d~gital ~nd digitally controll~d circultry ~or g~nelra'cing modulated Rl~
8igIlal8 or radlatlon by antenna 38 and for ~ 5~1RO ~ ~, l 2 2 ~
1~
receivi~ alld d~modulating ~ ~ignal~ r2c~ivecl by the antenna. A cox~venti.orlal frequency ~ynthe~ er cl rcuit l~te2~al to tran~ceiver 10 det0~nine~ tha RF
transrnit and rec{3iY~ r~uenci~3 unde~r control of digital 3iglll!1~ produced by an lntarnal mlcroprocsssor 152. Pu~h-To-T~lk ~PTT~ ~witch 34 control~ the tran mit/recelve modo of tran~cQlver 10, ancl di~play 122 (~f pre~ t) dl~pl~ys chanrlel, statu~ d othor lnormat~ orl. In th~ tra~l~ceiv~r coniguratioa~ uhown in Figur~ 1, tha u~r may further control ~e unction~ o th0 tranac~iver by depre~3ing on~ or mor~ key~ la provided on the transceiver fron~ pallel. A~ m~ loned previously, ~n/of control and volu~e control~ p~rformed by knob 40, whil~ a :eurth~r lmob 42 ca~ b~ op~rate~d to control RF cha~nel a~lection by ~ znicroproc~s~or.
Flgur~ 4 18 a ~chematic block diagram of exemplary tran~ceiver circuitry 150. Traalsceiver 10 includ~s a microprocessor 152 (pre~erably includirlg arl inLt2~nal r~ad only m~mory typ~ program 8tor~, not show~) ar~ "p~r~o~ality d~iLnlns~" non-volatile mq~nory d~vlc~ 1540 both o which ar~ mourlt~ad on a Ral~a contrc~ r }~o~rdl ~53. Th~ proç~r~n m~mory could al~o b~ xt~r~ally programmabl~ ~:PROM, EE:PROM, or oth~r ~imil~r ~on-volatil~ pro~ramm~lo or reprogranu~ mo~ory devic~ coupled to ~onnector 32. U8ing ~uch ~ pxogra~ le d~VIG~ allow~ the upgrading or r3101~1~ding o the mlc:roproco~aor progralu m~mory m~r~ly by co~octing a programming devicl~ to ~ xtorn~l UDC cor~n~cto~ 3~ snd downloading n~w axe~cutabls s:odo lnto th~3 memory . Thi 8 tec}~nlque Ifli~a~08 t:h~ ne~d or op~nin~ e radio and re3~oving ~d r~placlng tho me~mory chip or .
. .' - ' ~5MROC)61 microprocs~or chip to upgrade ~ prograR~ cod~.
technique ~ay ~hus~ b~ u~ed i~ d~$ired ~o load program control in~tructions re~ rin~ a dl~play board 22 in ~o ~ranscs3ivers 10 having ~3uch a dl~plzy board and to load progr~n conkrol inE3tructions not requiring a di~play ~oard into tran~ceiver~ havlng no display board.
T~e tran c~lv~r lS) circ:uttry ~urther lnclude~
R~ c:ircultry block 156 coupled to R~ ant~nna 38, a loud ~peaker 16û, a microphon0 162, a u~r control interface c:ircuit 164, and display board ~'lmodulen~
220 Microproce~or 152 controlE~ 'che operatio~ o RE
circuitry 156 in a con~entional marm~r by a~pl~ring digital signall3 to and r~-:e~ing digital signal~
from the RE circuitry. RF circuitry 156 (which in a pre~err~d embod~ment includes a cor~antional digitally controlle~ fregu2ncy Ei~ynthesizer) receiv and demodulate~ RF ~ignal~, and g~nerates, modulate~
and 'cran mi~s RE siga~al~ -- all at RF fr~or cies ap~ci~ied by mlcroprocas~or 152 undsr program Coll1;rG~ .g., At op~??tirlg fre~u~ne~ 3 det~rmin2d by dat~ Istorodl in ~RO~X 154, which could al~o ~e~ a batt~ry baclcad.-up RAM memory).
U~r control ialt~r~-lc~ circuit 164 in ~
preforred embodiment ~nclude~ a ma~ri~ keyboard ss::ann6~r arxangement . l~i 8 scanning arra~g~em43n~
iaaclud~ a ~hift reqi~tsr 170 for s~n~rating ~canninçl ~ign~ls and applying tho seannlng~ ~ gnal~
to elsctri~Al eontaet~ a~soe~ated wlth koy~ 18. A
furth~r ~hit rogi~t~r 172 r~d~ ~witch ntato~ ~om ~ao kaypad awlteh eontaeta and provid~ an indlealtion of th01!12 ~tate~ to microprocesoor 152.
proe~ 0d ~m~odimont, th~ ol~ctrle~l con~ac~s . .
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~5MR00612 1~
0cl~ted w:lth key~ 18 tlra ~rrang~d ln a ~o-c:alled "matrl~ 176 o~ ~ight rowa ( R0-~7 ~ and ~our colwnna (C0-c:3 ) ~ Mic:roproc~ 30r 152 typlcally per0~n~3 keyboard ~canning by wrltixlg tl~riz.l datz~ byte~ to ri~l input o para~ 0-3ariE~l convert~r 8hi:et register 170. A con~3ntlonal ~er:lal data write routln~ performed by ~lcropro-:e~or 152 cau~
~hift regi~t~r 170 propagat~ a~ activ~ low bit vzllu~
~u~c~iY~ly to ou~pu~s C0 ~Q13, Cl (Q2), C2 (Q3~, and C:3 (Q4). 1~ Q5 output o~ ~hift r~gi3ter 170 ~elact~ operational mod~ ~co~Tunand or data) of display modul~ 22 (1 pr~sent)0 th~3 Q6 oukpu~
cs)n~rol~ ~o ~tate of backllgh~ LE~D~ for di ~play 122, and t~he ~,7 output provid~ control ov~x Lhl) bacXlight~ for the3 k~ypad ( or to provido ~ scan indicator ~or the M-TL configuration i~ de~ired).
Di~play module~ 2~ connect~ to microproces~or 152 by an al~ctrical conn~ction o th~ fl~x-typ~
circuit boa~d to th~ diaplay module 22. In a pr~f~rred ~mbodl~llt, th~ 1~ c~ rcuit i0 pr~ssure ~lt o~ cl~mp~d to tho approprlate~ co~ctlon fing~rs o~ ~ di Qpl~y bo~rd to p~ovide!~ th~ ctris~l co2~a~etion. 1 iscordnect~o~ of th~ dlsplay modul~ 22 ro~ ~nicrop~oco~or 152 (znd a~soclatod controll~r circuitr~ ~ doe~ not p~lrmit any o~ ~ ml~roproc~or l lin~ to cont~c~ ground pote~ial or othe~
~gnal l~n~ pot~ . A3 d~2c~ib~d pr~viou~ly, 1n~tallatlo~ o~ ~ di~play ~odulo 22 i8 mo~tly matt~r o~ ~ow~t~n~ th- di~play rao~ul~ to tho in~ld~
of ths trsnsee~ivor 10 ~ha~sia usinS~ t~nerl~, and then connsctl~g th~ dl3play modull~ to the m~croproc~or and a~oclat~d controllor circultry via t~a~ pr~sæurQ or cl~np-typ~ co~n~ction d~acribed , -,. . .
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45MRo061 Dlspl~y m~31ul~ 22 î~ a pxaerr~d embodlm~nt ~ îude~ a conv~n~ional r~ controllar l~O (~.g~, typ~ uPD7225 muau~ackured by ~C Electronic~ and a conYes~tlonal rgD pan~l-typ~ display 122. I~ the pre~rred e0bodlme~nt, controller 180 rec~lve8 ~erlal data ~ignal~ ro~ mlcroproces~or 152 ov~r ROP~OC~:SSOR DAT~ OUT ll~a~, conv~rt~ tho8q3 R~3Xi~
da~a ~ignal~ lnto l:.CD di~play drlvlny ~ aal~ i~ a convenkiot~ er, and applie~ the drlvirlg 81gnal8 ~o produc~ a dl~play on 1~ dl~play 122. In a pre~erred arrarlg~mer~1:0 an addltional LED da: ive 182 may s~lectiY~ly provide LCD back ll~t control und~r m:lc:roprocesaor 152 con'crol) via a Q6 oukpu~ of ~ r~gl~ter 170 to illum~n~tq~ 17 baclc 1~ ght LEDs 184, 186.
A~ m~t~oYl~d above, microprocas~or 152 provldes da~a to controller 180 vla the ~icroproces~or DATA
OUT lin~. EIow~verO thl~ DAT~ OUT lir~ ot dodicat~3d to dlsplay ~nodul~ 22, bu~ r~th~r 1~ u~ed by ~h~ sRlc~op~oca~or to conum~lcat~ wlth ~rarlou~
o~r tr~e~iv~r co~po~e~t~ ( lneluding, ~or ~xampla, ~l~t roS~isto~ 1703. Accordl2~,~1y, an a~ditlonal conl:rol lin~ DI~P ~ ( "displ~y enable" 3 i~ dropped to ~n aetlv~ low l~v~l to en~
corltrollar 180 ( lr~ pr~f~rr2d embodim~n~
co~rol lln~ i~ connoct~d to th~ controller "Chlp Sel~c~ Ut). ~IS;U:R~ S 1~ ~ ~che~a~l~ tl2ll1ng diagr~n o ~x~pl~ry control ~ignal~ chan~aed botw~n m~cropa:oc~oo~ lS~ ~nd cont~oll~r l8O in th~
pr~rred ~mbodi~nt. To writ~ d~ta3 to controll~
180 ~or di~play, mlcroproco~or 152 ir~t w2~1te~
approprlat~ dat~ to on~ute~ that th~ C~D lin~ (CQ5) . ~ :
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45M~00612 2 ~
la output of ~hlft reylster 170 ~3electa "data" rather than "contIol" mad~ P'or ontroller 180, and th~r microproces~t~r 152 a88erti~ ( active low3 DISP E~
s~gnal. In r~poll~e to ~:his (n~d~e7'An, F~E 5) active low I:)ISi? ENA ~ignal 1eY01~ controller 180 Eactlvatea lt~ nor~ally inactivs tri~ate DATA OUT
lin~ generat~ an actlve low lev~l on ~is lin~ for about 30 ~iero~ecs:~nds and t~erl pull~ the lin~ up to logl~ lev~l 1 ( FIl~ 5, eds~e "B" ) . ~icroproces30r 152 begin~ to tra~mit ~e~rlal data on its 1:3ATP. C)UT
lina (thl~ ~erial data repr~sent~ inforrnation to b~
di~played on di~play 122). ~hen controller 180 receive~ the data, lt a~aiEl as~rt~ its ( actlve low) DISP BUSY signal (which i~ normally "pulled up"
withirl controll~r 1~ ccept when active low) to inorm mlcroproc~s~or 152 that it i8 busy receivlng and proc~sælng that data. Controller 180 continue3 to assert DIS~? 13USY signal in t~l9 pr~erred e~odiment until i~ 18 ~dona" handling the data las tra~mltted to ik by mirroproc~s3or 152 80 that the microproc~s~or do~a~ not attempt to s~ns~ additional data to the~ comtrollsr 180 b~for~ th~ controller :18 r~dy to r~ceiv~ arld h~ndl~ lt.
~ n th~ pr~err~d embodim~nt, microprocessor 152 det~rmlne~ w~ r di~play module 22 i~ pr2~ant or not by enabl~.ng th~ di~play module (by a~s~rting the activ~ low DI~;~? ENA lin~) and then testinq whether ~:h~ l)ISP E~U5Y l$no i~ assertocl in r2~pons~.
R0~E~rrlng to FIGURE 6; (a ~he~matic 10w chart o e~empl~ry proqra2~ cont~ol ~opo perorm~d by ~lcropxoc~s~or 152 ln th~ pruoa~ed ~mbodiment to det~r~in~ who~r d~play modul~ i~ pr~ent or ab~nl:), saicroprsc~s~sor 152 ~lr~t a~sert~ DISP
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' 45MRo061~
13NA line (bls:7ck 200~ and th~n monltor~ thQ J~I~P BUSY
lin~. I di~play ~aoslul0 22 1~3 pr0~ , controller 180 will respon3ively ~a~es~ ~e DI5P BUSY li2le. I~
dlaplay module 22 11 not pr~ nt, on th~3 other hand, the stat~ o~ DISP BUS~ line w~ll no~ change. If m~Lcroproce~or 152 d~t~ct~ the DI5P BIISY lin~
ha8 tran~itio~ d, iLt conclude~ that di~play module 22 1~ pre~ant ans3 begln~ op~ratlng in a full-f~atured mod~ ~mowal as M-PA (block 204j. X~
mlcroproc~aor 152 d2t~cts no tran~ition o th~ DIS2 BUSY lin2, on the okhe~r h~nd, it op~rate~3 in3t~ad in a mode oferir~g mor~ limited functlonal~ ty kr~own a~ ~
M-TL (block 206). In th~ prQfQrred ernbod~.ment, t~
t~t performed by docislo2l block 202 may, if 1r~d, b~ reiteratsd ~v~ral tlme~3 bQ~or~ block 206 8el~ct8 1:ha M-T~ mod~ in order to prev~nt tha transc~iver from e~roneously ~ntexing an impropç~r mod~a of op~rati on .
It wlll be appr~clated t}~at deci3~ on block 202 wlll dot~ct not only ~ pr~s3r~c~ or ab~nco o display ~nodulo 22, but al~o who~Y~r th~ d~pl~y modullo 1~ ~unct~02~al or notO Ihat io, R di~play module 22 pr~nt w~thl~ tran~c~lv~r 10 wh~ch has failed ~uch th~t it ~o lon~r as~rt~ the DISP BUSY
lln~ 1~ roaponse~ to ~ als 30nt 'co it by microp~os:~x~or 152 will be~ trsate~d by docisiorl block 202 a~ ~f t~o diopl~y modulo ie~ not lnstall~ad wlthin th~ tx~aceliv~r ( thu~ c:~u~ o tran~c3iv~r o oporato 1~ ~ lowo~ unct~lvn~11ty M-TL modo). Thi8 e2ltur~ o~ tho ope~tlon o~ th~ pra~orrod ombodimo~t may hav~ advanltag~ nco it i~ typically not po~ible~ to maint~ hlqh ~tmctlonality of th~
M-PA modle~ wlthout ~e~ o~ a dl~pl~y ~ ~ w:lll now ' ' ' ..
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45MRo06l2 2 ~
b~com~ appare~nt).
7 i~ a sc~,ematis: ~tatq~ dla~r~n of d:ler~nt u~e~r input ~tate~ prov:Ldad by th~ FI~
tr~n~celiv~r c3urlng ~ranE~c~lvsr op~ratioIl in 'ch~ M-~A
mod~ . lne "nonnal n state of tr;~nsc~iver lO :1~ to di~play ~ currently s~1ect~sd op~ratln~ chantlol on display 122 (blo~k 210) . Depr~a~lng ~ me~u" ) k~ ~elQct~ di~rent u~ lnput stat~ 212. E:ach of u~3~r i~put ~tat~ 212 p~r~it~ the~ u~r to :L~put d~~r~nt p~ra~t~rs ~nto tran~ lve~r lO, and most 0~ 8el~ u~r input ~tate~ re~uire di~play l22 for eff~cti~ int~rfacing b~tw~en t;h~ user and the transs:eiv~r 10. For ~xampl~, in the~ chann~l state 212A, depx~ing a furt:;her SELECT ( ~S" ) cau~
microproc~aor 152 1:o di~play 3 par~ ular chann~l ~lectioll which t~o usor may t~-~n altor by aga~n depre~ing th~ s~ ct k~y. Onco ~ approprlat~
c~ann~ d~ ~play~d on di~play 122, tho u~r may then depr~ th~ E:XIT ( "}:" ~ koy to ~cuta t~e chang~ ~nd t~u~ provldo opor~tio~ on a n~w oporatlng ch~nnol. 8~milarly, phon~ ~dlt l-t~tO 212G p~
the u~or to rovlow proviou~ly inputtod and ~tor~d phon~ nw~or~ o~ d1 splay 122 ancl pormit~ tho u~r to entsr ne~w pho~ numb~3r~ and ~toro l~a~o into th~
tr~noc~ivor' ~ non-volat~lo ~omory 154. Thi8 ~unction i~ difficul~ or impo~lblo to p~orm w~thout a di~play 122 for dl~pl~ylng t~ p~e~viotl~ly stor~d p~on~ rs.
FIGU~ 8 i~ a. schomatl~: ~t~to diag~A o~ tha mor~ mlted ~-TI. modo o~ oporation. A~ hown in FIGUR3 3, ~ TL configuratlon ln th~ pr~vious e~odim~2at, includo~ d w11:h only thro~
key~ s ~ CT nnd SCN. Th~o thr~ lcoy~ ar~
, ,-, '' .
45~1R00612 ~1 provlded to p~it th~ u~e?r to lnput a chaam~l ~ca li~t vla char~l solector lulob 42. l~e norm~l "ch~nn21 di~plaly" 81:at~ 230 shown ln FIGUR~ 8 iJ
re~lly a non-di~play ~ka~o if dl~pla~r module 22 la ~baent. By d~pre~s~in5~ ~M key, ~ u~e~r unlock~ th~
otlle~ two kQY~ ( ~tat~ 232 ) . By th~n depx~ g t:he ACT key, th~ u~er cle~r~ praviou~ly entcred ~can list (tho enl:lr~ ~c~ ll~t must be cl~ar~d bç3cau~
ther~ 18 no dl~play 122 to permit ~h~ u~r to ~lectlvely revlew and chang~ ~e preYlous entrie~). ~e us~r may then "~ulld" a chann~l scan list by ~le-~ting channel~ using lcnob 42 and 8tr~Xing the SCN key (block~ 234~ 2363.
Of course, th~ TL and M-PA mod~ of tran~c~iver 10 operation shar~ a gr~at d~al o unstionality in term~ o~ chann~l ~ca~nlng a8 well a~ in per~orming varicu~ o~er func:t~on~ re~auired by transceiYer 10 (e.g., recQivin~ and ~ran~mltting RF
gnal~ ln accordanc~ with in~ormation ~tor2d in ~ar onallty ~ROM 154, rosponding to pr~-progranmed ton~ ~uolch ~ 3tc. ). Th~ main di~f~reneo botw~en th~ M-TL and M-~A oparatlonal modes 1~ t~at th~ Pq-Tr. mocl~ h~ ~ much more limlted uYer lrlt~r'ace capabillty b~cau~ of th~ absenc~ of dl~play 122.
In th~ prei~erred enbodiment, p~r~onality PROM
154 typically ~tor~ a byte of information i~dlcatlng transc~iv~r typ~. Th~8 ~Yl?13 in~o~atlo~
may be~ u~ed alternately to ~or in corlJullction wlth) acemplary progra~ control ~t~p~ sho~ in FIGURE~
6 to d~t~rmin~ w}~eth~r transc~iv~r lO i~ con~igur~d with an dl~play modul~ 22. In th~ pra~erred ~mbodiment, lni~ormation l~ downloaded lnto p~rsonallty ~ROM 154 ~u~t b~or~ th3 tran~t:0:
~ 5MRO o 6 1 2 22 ~ 3 ~ ~
provided to a purGhaser, auch in~oxma~lon spe~c:lfyla~g variou~ pur~ha~0r-sp$cific inorma'cion (e.g., opQr~tlng freguenci~3~, tr~nsc~iver ldentl~içatlon, authoriz~d groupa/lndividual)3 ~e ~ranl!3ce:1ver may cosnmunicate w:).t~, etc. ) . An addltional byte of in~ormation al~o download~d in tha pre;e~rred emboelime~t lfler~tifie3 ~he ~ran~ iver type~ . g., to permit the conventional prsgr~nins~ vlc~ u~ed to dev~lop and download th~ informatlon into PROM 154 to con~lgure that informat~Lon appropriately~.
Micxoproces~or 152 sllay, if de~lr~d, read that TYPE
byte o~ informatiorl to determine whether o~ not transc~iver 10 is equipped w1th a di~play, and th~n begin op~ratiny in th~ M-TL mod~ ba~ed on th1~ ~PE
illform~tion rather l:han on the de~tected fai1ure o contro11er 180 to as~rt th~ ~I5P BUSY 1ine. Thes~
two a1ternate techniqu~ ars not, of cour~e, equiva1ent to on~ anoth~r. For example, if incorre~ct TYP15 in~ormatlon wa~ dowIl1oaded lnto PROM
154; ~ran~ceiv~r ~0 ~nlgh~c b~gin operat1ng in M-TL
~ode!\ (ev-3~ ~ough it wa~ ~guip~ped wlth a di~p1ay modllla 22 ) or vic0-vsr~a 1~ it ba~e~ 1ts dst~rmi2lation ~olely oS~ conten~s of P~OM 154 rat~e~r t~han on th~ ~ctua1 d~teGtion of th~ presence o~ 33nc~ o a dl~play modul~ 22. ~oweve3r, it would b~ r~latively di~flcult or a u~er to obtain and ln~tall a di~pl~y modul~ 22 ln order to up~rade hi~ transcelv~r 10 ~ter purcha~, and the additional u~er int~rf4c~ ~unctionality prov~d~d by op0ration in M-PA i~ virtually worthle~ u~
di~play module 22 i8 pY'08i!!1nt.
Wh~le th~ inventlon hao ~n d~scrlhed ln conn~c'ciotl with whut l# pr~ntly con~id~r~d to b~
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~5MRo0612 2 ~
~ae mo~t practiLcal and prQ~erred ~mbod~ nt, lt i~
to be under~tood that the~ inY~ntion i~ not to b~
li~aited to the disclo~Qd embodlment, but on t~e~
contx ry, iE~ lntend~d to cov~r various modi~ications and eguivalent arrangement~ includQd wlthln t~ae ~plrit and RCOpe of the app0nded clatm~.
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9.6-157 OP~Tl:0~ DISP~
C~S2;~
l~i8 applls~at~ora i~ rol~t~d to tha ollowlng copendin~ commor~ly--Q~lgn~d ~ppllcaSls~ filed concurre~tly herawlth: ~-Serial No . _,_ o~ EIodsdon et al ( attorney dock~t no . 460154; GES dock~t no ~ 45-l~-611 ); and 5eri~1 No. ;_ of Szc:zutkowski ~lt al ( attorno~f doc:ket no . 46 156; GP: docXat no .
~LS-MR- 609 3 .
Th~ coa te~r~t~ o thoe~o two r~l~t~d appllca'c~on~
ld~rlti~ 31 abovo ~ro ~stcp~ ly 13lcorporate~d lloroln by re~ ro~sc~.
T~18 appllc:atlon ~8 al80 r~lated to com~or~ly-a~ d lJ.S. Pa~ent ~pplication s~rlal no.
07/183,212 fll~d 19 April 1988 ln tho name~ c~ Ingh~m ~Atto~y ~ock~t no. 46-~SS; G~3 dock~t no. 45-MR-SSl).
~ t9 l~ nv~n~lo~ x~latas g2ne~r~11y to radlo tra~s~olYe~ unite~ d in p~ticular, to ~ radio .
. .
~, , ' . ' ' 4 5ME~û 0 6 1 2 transc~iver which may be reco~f:Lgur13d r~l~tiYely ea~lly fxor~ one~ havlng ~ di~play capabillty ts~ a lower co~t v~rl3io3l w~lc:h do~ ns:~t hav~ a di~pl~y.
1~ inv~ntloll al~o rela'c~s to ~ r~dlo tran~ceiYer construet~ on which facilitat~ the incorpor~tistl or omisE3ion o a display capablllty during productlon.
Fc-r marX~tiny and oth~r r~a~on~, maaluacturor~
of radio c:ommunlcatlon~ d~vlc~ typic~lly o~E~er s~v~ral d:lffore~t coniguration~ fo~ ~ach cos~unu~lica1:ions procluct manufacturç~d. A particular mod~l of racllo transceiver may have a "basisn or minim~l con~iguratlon but may optionally b~3 provided with additlonal eatures or nopt:Lons" at additional cc~t .
For ~a~ampl~, ~ ba~ic tran~ iv~r conflguratlon may provld~ communication~ over a llmit~d number of commu~icatio~s cha~l~ for ba~31c radio transmitting a~sd rec~iving ~unction~ r~uired by all us~rs. Some ~ser~ may, how~vor, havo addltion~l re~uiram~nt~
rs~irl~g ~t31dltional ~Qaturos -- ~u~:h tl~ addltio~al c:ommunicatlo~ ch~ , r~ce~lv~r ch~ l sGanning, di~play cap~llity and 80 0~. Th~ abilit:y of ~
masl~fsctur~r to provido ~ucl~ addit~ onal "optior~a"
p~r~lt~ lncre~oE~ ~n the 1e~ibllity, v~r~atility, d~sirability ar~d rang3 o applica~ion~ oî` ~he produs:t wl~out p~n~lizlng pu~chasartl o~ tho ba3ic c:onflç~uratlon w~th lncroa~d co~t. Purchal~or~ of the~ ba~slc msd~l p~y a mlnl~uim pric~ ~or ~e m:lnlmal corl~lguratlon, w~llo uJ~r~ ~oguirlrlg ~ddition~l ~optlon" ~atur~ p21y an lnc:re~d prl~ based on tho nw~ an~ typ~ o~ option~ ~eguir~d.
In ~ past, add~tional optionE~ w~ro g~narally .
~5MR0061 =
provided by incorporatlng addl tional compon~nt~ and circultry lnto th~ d~vlc~. For ex~mpl~, ln ~le pa~t, ch~ 31 8'CB~ning cap~bility or addlt~onal ope3ra~ing cha~l3 wore added by in~t~lliny additlonal freguç~ncy ~electlon clrcuitry lnto th~
tra~ceiv~r . Simi larly, ~9 ton~ act~vat~d squ21ch option typically r~uired ~ add~ 'cional tOIl~ decoder cirGuit ~o b~ ln~t~ d. Tran~c~iver d~ er~ u~ed modul~r arehlt~c:tur~ to acco~uaodat~ additlo~l plug-in "optlon raodules".
An ~xampl~ o t~li8 de~ign approach i~ the prlor art "MLS~ serie~ radio tr~nsc~iv~rs manufactur~d or -General Electric Co~p~ny by Japan Radlo Corp. The3e "MLS~ transceivers include basic tran~ceiY~r circuitry dispos2d wi~hin a hou~1ng. Th~ front panel as~mbly of thQ tra~ce~var hou~ing was manufactured ~epar~ly, and con~1~t~ o~ parabl~
front pan~l "escut~heon" plate~ al~o r~rred to a~
a control panel). M~chanically mounted to th~
e~cutcheon plate or control panel 1~ a printed circuit bc~rd w~ich plug-coDnect~ to-th~ basic tr~n~c~lv~r circuitry wh~n the ~hcutch~on plst~ i~
m~chanl~lly aste~od to ~h~ hou~lng. Tho e~cutch~on plat~ ~nd a~oc1ated printod circuit board compri~Q~ a module ~eparabl~ ~rom th~
tr~nsc~iver mai~ hou~lng aAd ba~ic circuitry. The mod~l~ lncludoo us~r control~ mounted on the ~cutchoon plate a~d c1rcu1try r~quirod to conn~ct u~er controls mount~d on the plat~ to ~he tr~n~ceiv~ circultry.
S1nce dif~eront ~option~ foatura~ ln ~any cane~
r~guir~ dl~r~nt ~dditlonal us~r control~, d1~or~nt ~od~1~ of e~cutch~o~ plat~ ~od~lo~ wera . ~ ~
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45i~R00612 2 ~ J ~ ~
produced for the nMl.S" serl e f3 tran~c~3ivers. In particular, th~ "MLSn tr~nsc31ver wa~ mad~3 avail~l~
in ~lvçl dl~erent ver~ions: ( 1 ) a two~channel "~a81c" v2r~ion; (2) an 8-c:hazmel ver~loll with th~
scan featur~; (3) a 16-<:ha~el verslon wi~out 3can, and (4) a 16-chanElal version with ~ca~ fe~tura.
1@iVE9 difarenl: interchangea~le ~cutcheor~ pla~e~
wlth different u~r control arrangements corr~spondin~ to the80 five differerlt tran~3ceiver v~r~ion~ wer~ 180 mad~ particular e3cutcheon plate/control pan~l install~d on a partlcular "Ml.S"
transceiVer limit~d the transcéivQr eatures 'che u~r could acce~ or ex~mpl~ sscutch~on plat~s corre~pondin~ tc thQ "MLS" l'eran~ceiver Ve!r8l On8 with 16-ch~n~l capab~lity and no scan eature doe~ not havo a control to actuate the ~can fe!atur~ -- preventi~ig tha U8e~X` from obtainlrlg t~a ib~n~fit o the ~can ~E~atur~. Similarly, the ~sGutc:heon plate21 corre~ponding to th~ 8-charm~l tr~c~iv~r v~r~ion~ do not includ~ usor co~trols to acc~ss mor~ an 8 channel~.
Since all "M~ transcs:~v~3r~ includ~d ldsntical ba~ic tran~3c3iv~r clrcuitry a~d m~in houa~ng, r~lucQd m~nuacturing co~t~ and incroas~d r~liab~l~ty d~rivecl ~rom largo 3cals~ manuacturi~
we~r~ o~tairlad. Sp~iflc purcha~er ~elect~d optionu could be~ provided in a partlcular UYlit simply ~y in~t~ g th~ appropr~at~ Qscutcheon plato modul~
-- a p~oc~dure which could b~ p~r~orm~d in th~ ld i~ do~ired. Incorporatlon oiE t}l~ circuitry p~orming th~ optlon ~unction~ and u~or controls lnt~racting with uuch circulitry wi~in th~
frollt pan~ cutch~on plat~ modul~ p~rmlttod a :, .
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45MRo0612 s ~f~
transceiver to be reconfigured by simply "unplugging" one module and "plugging in" a different rnodule (~urther increasing reliability and decreasing manufacturing c05t~).
Commonly as~igned U.S. Patent Application Serial No. 07/183,212 filed April 19, 1988 identiied above disclose~ an improvement in which e~cutcheon plateæ need not carry additional circuitry providing additional functionality but instead carry differ0nt user control configurations and associated corresponding security circuits. The transceiver microprocessor expects a certain user control configuration based on the t~pe of security circuit instaLled, and disables software-controlled transceiver functionæ not corresponding to the expected control coniguration.
It is also generally known to load a transceiver personality EEPROM via an external connector, see, e.g., commonly assigned U.S. patant no. 4,525,865 to Mears and U.S. patent no. 4,843,588 to Flynn.
Further improYements ara possibla, however.
Most "full--featured" digital radio transceiver~
nowadays include an al~hanurneric display (e.g., an LC~ display panel) because of the variety of differ~nt information that must be displayed.
Transceivers in the past needed only to display a few indications (e.g., c~annel num~er, on/off status and tran~mit/receive status). Modern digital "programmable" transceiver~ of~ering advanced, user-confi~ur~ble features such as DTMF dialing with a tored telephone number li~t, æelection betw¢en different operating modes, and scanning of ,. .
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~5MR006l2 2 ~ 3 ~
user-selectable channel numbers. Such mod2~n transceiver~ by necessity must provide informativa displays -- for the user otherwise would become "lost" in the user interface provided by the transceiver and could not e~fectively '~program" hi 3 selection~. The additional flexibility and power provided by quch advanced communica~ions functions (and the "user-friendly" invocation of 9uch functions u~ing an alphanumeric display panel ) hava become absolutely essential in Many communications applications. It is now, for e~ample, possibl~ to equip a police supervisor with a handheld radio transceiver offering critical ~eature~, ~unctionally and fle~ibility not even available to many main dispatchers only a few years ago. Thi~ additional communications flexibility permits a public service force to respond more rapidly and ef~iciently to emergency situation~.
On the other hand, ome user~ only require rel~tively limited functionality from ~heir radio transc~iver~ and would only be confused by (or are not willing to pay for) additional features. An LCD
display a~embly ~ 8 a rather coRtLy component and therefore ~ub~tantially increases the price of a ra~io tran~ceiver. It has become di~ficult to de3ign a full featured transceiver without a display for mo~t application~, becau~0 many users now demand and require a display and the as~ociated functionality it facilitate~.
It i~ an important ob~ect of this invention to provide a radio tran~ceiver design which facilitates production and/or which p~rmits quick conver ion o an otherwi~ ~tandardized transceiver deslgn rom , ' , ' ' . ' .'~ ~ ' ' .. . . ~ , , .
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~Mr;~co6:L~
2 ~
~ 7 on~ which lnclud~ a di~play to ona whlch dae~ no~
have a di~play.
In accordanc~ wi th one~ ~pect o th~ pre~ent lnsrenl:ion, a standa~rcli~d xadio tran~s:01ver can be produced wlt:h all o the lnkernal circu:Ltry and componenlt~ ~ and a~ociated func:tionality~ requt red or a full-eatured premium ~odel wl~ availabl~
optional feature~ lncorporat;ed th~r~ cluding eleetro~ic di~play, ~uch ~, for ex~ , an 1~ or r..EI~ dll8play. Thi8 premium mod~l includ~ a hou~ln5 forme~ with a di~play port, an lnternal display board and an associated display ~c:utcheon plate.
To produc~ a low~r co~t ver~i~n, or to corl~rt 'chl~
model to a lower cc~t ve~r~l~n having no di~play capablllty, all thai: i~ reguir~d 1~ to remove (or not ln~tall~ dl3play bo~rd and display e~cutcheon plate, ~d repl~ce th~ l~tter with (~r in~t,all a~ an original compon~nt) a blanX e~cutcheon plate (pre~erably pla~tic). Slnce th3 dl~play board i8 corm~cted to a m~i~ controller board by a conY~ntional ~l~x lntarcor~ct (or othor ~od~llar conn~ctor), tho display board 1~ an~lly :~emoved (or oml~d), w~l~ r0tainlng ~ub~t~t~ally full op~rational u~ of thQ main controll~r board (without t~ di~play).
In ~ccord~nc~ with a. fur~ r a~poct o the pre~e~t lnvention, rsmoval ~or omi~slon) o:e th~
di~play compon~nta i~ aul:o~a~le~lly ~n~d by th9 transc2~vsr' ~ int~rnal mlcroproca~or. ~ t~
microproc~30r 8~5113e~8 the~ dl~play compon~rlts ar~
pres~Jlt, it oper~to~ in a mod~ providing a di~play intQrfac~ ~nd as~oclated additlon~l functionality.
I, on th~ oth~r hand, th~ mlcroproc~s~ n~o~ tha , :, .
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dlsplay comporl~nt~ are Abs~nt ~or have :`all~d), tho tran~c~i~ter could b~ enabled to oper~te in ~
di~ferent mode which provid~ le8f~ fu~ tlonality not re~iring a di~play i~terface~. ~u~, lderltical tran~ce~lYex maln cor~troll~r circuitry can b4 used for transc~iv~r v~sr~ion~ with display component~ arld ~or tra~w~iv~r ~r~rsior~ wlthout dl aplay componerlt~. Thl~ has ~e advantage~ of allowing for a lower co~t v~rsion o an o~h~rwi 0e ~tandard transceiv~r to b~ bul lt u~ g con~no~ parts ~c:ontroller board, mecha}llcal housin~ ection, etc. ) -- and perhap~ moro importantly, u~ing lden~tcal controll~r circuitry and proqra~unlng, merely by rernoving or not ln~tallirlg t~e display board. Only O~lQ v~rsion of tho contrc~ller circui~ry needs i:o be marlu~actur~d, ~ince thi8 circuitry automatically adapt~ to th~ pr~3sancs or absence of di~play compon~rlt~. Only a few simple op~ration~ or~
the manufac~uring floor (e. g., lns~all or not ln ~all a di~play board) are requir~d to provid~
dif~er~nt tr~n~c~iv~r ver 10I18 Wl~ compl~t~ly dlf~r~t ~:ctionalitie~3 and charaGt~ri~tic~.
It i~ thu~ urther î~t lr~ o th~ inventlon that ~e ~lcroproc~or bas~d controll2r hardwar~ i~
d~sign~d to allow op~ration with or ~ithout a di~play, and th~ micre:~procea~30~ ~n~s wh~n no display 1~ pr~ent to detennino that th~ radio 1~ o a certaln typ~ i . e., a non-display v~r~ion.
It 18 anoth~x featur~ o th~ ln~ntion that ln v~nt ~ di~er~ k~ypadl and control pan~ o be used in a non-dlsplay s7arsion of ~e 'cran~coiver, th~8e el~rQent~ ar~ lik~wis~ ~aslly chang~d to ~uit tha cu~tom~r' ~ requirem~nt3.
r)o6l2 2 ~
In one exemplary embodlm~nt, a di~play board incorporat~g the diaplay unit, cill~play dr~ver :lC
and other auppo~ting components, i ~ mounted to an intç~rior surface or back ~lde of a front cov~r o~
th~ tran~c:eiv~r housins7. Th~ di8pl21y board i~
~ecured by four ~cr~ws which s.re insexkad rom ~e interior o the hou~in~ cover, and which extl3nd through hole~ in the cover in~o ~r~aded bore~
f~rmed ln thG dlsplay e~cutch~orL plat~ It wlll thu~ ba apprac$ ated ~at by removing the~e scrQw~, bot:h th~ display board and th~ diaplay escutcheo~
pl~te may be sepax~t~d frem the tran csiver unit ront cover. The display board may then ~e ~epar2ted ro~ th~ main controll~r board by di ~connectlnç~ th9 ~l~x lnt~rcoa~ct . Upon æst~nin~
a blank ~scutcheon plate over the dl~play ar~a or port of ~e front c~rer, u~ing four screws, the reconfiguration to a norl-display version i~
completed .
In the~ e~v~nt a dlf~e~rent front control panal i~
al~o re~uirod or th~ r~c:onfiguration proc~dur~, inte~rchang~ p~n~l~ aro provldad for quick cor~ect/dlncoDn0c:t ~ro~ tho tr~n~c~lv~r houslng.
l~e~ mann~r in which thls i~ accompli~hed ~ th~
8ub~ ~Ct: of colamonly own~d cop~nding application S~rlal P~o. . ( atty. dockat 46-154;
asa~ ee do~ket 45~ 611), filed coneurrontly hor~with, ~ ct matt~r o~ whlch 1 incorporated he~r~i~ by r~r~nco.
Add~tional ob~ OCttl ~nd adv~ntag~ o~ t~o lnvention will b3co~ pp~rent ~rom the d~tail~d da~c2iptlon whicXl ~ollow~.
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~5MP~00~12 2 ~
BRI D~E.S~IPTION OEF T~ DR2~ 5 FlGURE 1 is a per~pectlve view o moblle transceivQr uniLt incoxporating t~a ~ea~ureE~ of the present inverltlon;
FIGU~ 2 1~ a ~ide vlaw, p~rtially in E19Ct10~1, illustrati~g a di~play board a2ld a~oc~ated dl~play ~cutcheon plate in accordanc~ wit~ inv~n~lorl;
FIGl~ 3 is a parltial explodli3d vlew o~ the housing front cover, int0rchangeabl~ blank e~cutcheon pla~e, and irlt~archangeable con~rs:\1 panel in accordance with the invsrltion; arld FI~::U~ 4 i~ ~ sc~ematic blvck dias~ram o exemplary digitally controlled circuitry o transc~ r 10 sho~m in Flgure 1 and inc:luding a main eontxoll~r board;
.
EIGUR~ S is a timing diagram o~ ~xemplary slgrluls eo~ ated b~twa~ microproceEI~or and CD cofitroller showal in E'lgur~ 4;
FIGUR~ 6 18 a sch~matic: flow chart o~ ~x~mplary program control ~3teps r~lat~d to di~play p~oca~eing performad by ~ micropro~:e~sor ~how~ in Figure 4;
EICUR~ 7 iE: ~ schemat~c diagram o u~3r irltor~c~ ~od~ pr2~ent~3d to thl~ uQ~r ~ria koypad 14 and LCD dl~play 122 ln the tran~calve~r conflgured aa ~owx~ in ~igure :L;
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45MP~00612 11 2~
FaGu~ 8 i~ a schema~lc ~ta~e dlagram of u2~r lllt~r~Fac~ st~te~ pr~3se~t~3d to ~18 u~r b~ the trarlsc~31ver wh~n ~ LCD display rnodul~ i3 re!mov~d fro~ ( or not inE~ItQlled ln) the Fiqure~ 1 'cran~celver .
DET~I~ D13 SC~ N O~ DRA~I~
Wi ;:h re4~r~nco to Eiçrur~ ~ulti frsq~ cy, r~dio tran~ce~ v~r ~mit 10 include~ a ~R~tal housing 12 (WhiCh i8 pre~Qrably alumlnum~ having a frs~nt control panel 14 ov~rlying al DTM~ rubb~r keypad 16.
Th~ pad 16 has a number of indlvi~al keys 18 which are ~hown proj ectln5~ through a corr2sporldin~
plurality o~ apertur~ 20 in th~ control panel 14.
~ di~play l~oard (or module3 22 i~ mount~d withir Im upper portlon of the!l hou~lng 12 f or vi~wing meo~ages, ch~r~nel name~, 8tatU8 lndicato~, etc. A
di~play ~scutcheon plat~ 24 i~ securod to the~ front cov~3r 26 o the~ housirlg in ~ m~nner de~crlbed in furl:her d~tail hereln b~lc~w.
A sp2ak~r grill 28 (which ovorlle~ a sp~akor and lolcrophon~ not ohown? io incorpors,tod ix2to tha ~hou~lng 12, dlroctly b~low tho control p~n~l 14. 1~
b~ttory p~ek 30 i8 op~rat~v~ly attached ts) th~ low3r po~tior~ o~ ~ housir~g, and io easily conn~ctq~i:l/di~60~n~cted for replac~ent of battorie~
as n~ed~d.
Othor f~ature~ and/or compono~t~ include a programmoE conrlo~tor 32, a trarl~m:lt button 34, mo~itor butto~ 36, antenn~ 3l3, volumo control ~ob 40 arld froquency s~lec~or hlob 42.
dl~plDIy bo~rd 22 1~ fast~n~d to ~e~
interlor o~ b~ck ~ld~3 o th~ covo~ 26, whil~s th~
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~5M~00612 ~ o ~
di~p1ay ~cutcheon plate 24 i~ mounked orl the e~erior or fron~ ~id~ o~ t~e cover 2~, in ver~lcal al$gnm0nt wlth a dlaplay port 27 ~orm~d ln tha c:over, q~1th ~peci1c reference to ~igure 2, ~h~
dl~play ~scutcheon plate 24 and d1~play board 22 are s~cur~d ox~ oppo~1te ~1de~ o~ 3 front cov~r ~6 by four reta~ nlng screw~ 44 ( onl}r 'cwo o~ whic~l ~ra ~hown i~ Figure~ 2 ) which ara in~rt~d ~rough the displs.y board 22, front cover 26 ~via ~Ihoo'cA bore~
4~ beBt ~een ln Figur~ 3 ) and into thr~ad~d ~ores 4B
provided in re~pective rearwardly pro~ecting bosse~
4~ formed in the escut~heon plat~, located at the respe<:tive corners of` the plate.
To remov~ the board 22, ~crews 44 are~ ramoved, relea~in~ both tlle escutcheon plat~ 24 and display board 22 from th~ ~ront cover 26. Upon disconnectio~ o t}l5 di~play board from ~e maln controller board, vla th2 1ax interc:onnect, ~e entl~e d~play UZlit may be remo~Jed.
Wit~ ref~sren~ to Eiç~ra 3, a blank e)s~utchson plat~ 50 ~8 llluztr~t~d whlch may b~ ~ecurQd 'co th~
ror~ cov~r 26 o ~o houslng 12 i~ plac~ of ~ho di~play qscutch20n plat~ 24. Plate 50 has a ~anerally slmllar hape~ to that o th2 display pla~
24, ancl i~ provided with a ~ tan~:lally id~ntical edge and ~cr~w hol~ configuration ~o that ik ~ay be secur~3d to 'ch~ cov~r 26 in th~ 8alll~ er a~ th~
dl~play plate. Thu~, scraw~ 44 (or ~lightly lon~er 8crewa3 1~ n~cos~ary) ar0 utllized to ~ecur~
plat~ 50 to th~ cove~r 21j Yil~ hol~ 46 and threl~ded bore~ ot ~hown3 ill the blank plat~ 50.
Al~o ahown in E'$gure 3 i~ an altornatively c:onigur0d control panol 52 whlch may b~ utill~ed :In . . : - , . . .
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-- , ~5~ 0~12 place s:~ the pan~l 14 la~ avent tha~c, a~ part o~^
th~ reconflguratlon, the n~n~rlcal k~y~ o~ th~
l~eypad ( or ~xample ), ar~ 3o to b~ omitt~ad . As pr~v~ ously m~ntlonsd, the manner in which panel î4 may ba removed arld panel ~2 (or ot~r differantly co~îlgured, but interchang~able, pan~l) attached la di ~clo~ed in commorlly owned cop~ndlng appl 1 ¢a~ n S~rial P~o. ~attorney doc}Yet no. 46-154; GE: docll:et 45~ 611 ) .
For purpose~ oî ~ in~ention, i~ i8 3uf~iclent to no~e that the con~rol panels 14 and S2 are provided with a locking ba~ 54 which ~xtend~ -acro~s all or at lea~t a part of the upp~r ed~ of the~ paI191, and which upon a3sembly, iB ln~er'ced upwardly into a rece~ed area ormed by ~ Pront cov~r 26, k~ypad 16 and dlsplay (or bl~k) ~cutcheo~ plate 24~ (or 50) . It wlll 'ch~re~or~ be appr~cia~ed that the e~cutch~on plate 24 (or SU) a88i8t in ~ecurin~ whic:h~ver control panel i~
employQd.
It will b~ appr~ciated 1:hat ~rl~m a ma~ufacturirlg ~tandpoint, th~ production o~ a low~r c031t ~3~81c~n s:~f ~e oth~ andnxdlz~d radio tran~ceiver d~gn 18 achi~ved m~r~ly by omiltlng thl3 dl~play board 22 and di~play e~cu~cheo~l plat~ 24 ~a~sd panel 14 i~ applicabls~ and lnstalllhg th~
blank escutch~on plato 50 (ar~d çontrol pan01 52 if applicabl~), but without haYring to change or alt~r th~ mai~ c:ontroller board.
Bri~ly, tran~c0ive~r 10 includ~l convontional micropro~s~ox bas~d d~gital ~nd digitally controll~d circultry ~or g~nelra'cing modulated Rl~
8igIlal8 or radlatlon by antenna 38 and for ~ 5~1RO ~ ~, l 2 2 ~
1~
receivi~ alld d~modulating ~ ~ignal~ r2c~ivecl by the antenna. A cox~venti.orlal frequency ~ynthe~ er cl rcuit l~te2~al to tran~ceiver 10 det0~nine~ tha RF
transrnit and rec{3iY~ r~uenci~3 unde~r control of digital 3iglll!1~ produced by an lntarnal mlcroprocsssor 152. Pu~h-To-T~lk ~PTT~ ~witch 34 control~ the tran mit/recelve modo of tran~cQlver 10, ancl di~play 122 (~f pre~ t) dl~pl~ys chanrlel, statu~ d othor lnormat~ orl. In th~ tra~l~ceiv~r coniguratioa~ uhown in Figur~ 1, tha u~r may further control ~e unction~ o th0 tranac~iver by depre~3ing on~ or mor~ key~ la provided on the transceiver fron~ pallel. A~ m~ loned previously, ~n/of control and volu~e control~ p~rformed by knob 40, whil~ a :eurth~r lmob 42 ca~ b~ op~rate~d to control RF cha~nel a~lection by ~ znicroproc~s~or.
Flgur~ 4 18 a ~chematic block diagram of exemplary tran~ceiver circuitry 150. Traalsceiver 10 includ~s a microprocessor 152 (pre~erably includirlg arl inLt2~nal r~ad only m~mory typ~ program 8tor~, not show~) ar~ "p~r~o~ality d~iLnlns~" non-volatile mq~nory d~vlc~ 1540 both o which ar~ mourlt~ad on a Ral~a contrc~ r }~o~rdl ~53. Th~ proç~r~n m~mory could al~o b~ xt~r~ally programmabl~ ~:PROM, EE:PROM, or oth~r ~imil~r ~on-volatil~ pro~ramm~lo or reprogranu~ mo~ory devic~ coupled to ~onnector 32. U8ing ~uch ~ pxogra~ le d~VIG~ allow~ the upgrading or r3101~1~ding o the mlc:roproco~aor progralu m~mory m~r~ly by co~octing a programming devicl~ to ~ xtorn~l UDC cor~n~cto~ 3~ snd downloading n~w axe~cutabls s:odo lnto th~3 memory . Thi 8 tec}~nlque Ifli~a~08 t:h~ ne~d or op~nin~ e radio and re3~oving ~d r~placlng tho me~mory chip or .
. .' - ' ~5MROC)61 microprocs~or chip to upgrade ~ prograR~ cod~.
technique ~ay ~hus~ b~ u~ed i~ d~$ired ~o load program control in~tructions re~ rin~ a dl~play board 22 in ~o ~ranscs3ivers 10 having ~3uch a dl~plzy board and to load progr~n conkrol inE3tructions not requiring a di~play ~oard into tran~ceiver~ havlng no display board.
T~e tran c~lv~r lS) circ:uttry ~urther lnclude~
R~ c:ircultry block 156 coupled to R~ ant~nna 38, a loud ~peaker 16û, a microphon0 162, a u~r control interface c:ircuit 164, and display board ~'lmodulen~
220 Microproce~or 152 controlE~ 'che operatio~ o RE
circuitry 156 in a con~entional marm~r by a~pl~ring digital signall3 to and r~-:e~ing digital signal~
from the RE circuitry. RF circuitry 156 (which in a pre~err~d embod~ment includes a cor~antional digitally controlle~ fregu2ncy Ei~ynthesizer) receiv and demodulate~ RF ~ignal~, and g~nerates, modulate~
and 'cran mi~s RE siga~al~ -- all at RF fr~or cies ap~ci~ied by mlcroprocas~or 152 undsr program Coll1;rG~ .g., At op~??tirlg fre~u~ne~ 3 det~rmin2d by dat~ Istorodl in ~RO~X 154, which could al~o ~e~ a batt~ry baclcad.-up RAM memory).
U~r control ialt~r~-lc~ circuit 164 in ~
preforred embodiment ~nclude~ a ma~ri~ keyboard ss::ann6~r arxangement . l~i 8 scanning arra~g~em43n~
iaaclud~ a ~hift reqi~tsr 170 for s~n~rating ~canninçl ~ign~ls and applying tho seannlng~ ~ gnal~
to elsctri~Al eontaet~ a~soe~ated wlth koy~ 18. A
furth~r ~hit rogi~t~r 172 r~d~ ~witch ntato~ ~om ~ao kaypad awlteh eontaeta and provid~ an indlealtion of th01!12 ~tate~ to microprocesoor 152.
proe~ 0d ~m~odimont, th~ ol~ctrle~l con~ac~s . .
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, :
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~5MR00612 1~
0cl~ted w:lth key~ 18 tlra ~rrang~d ln a ~o-c:alled "matrl~ 176 o~ ~ight rowa ( R0-~7 ~ and ~our colwnna (C0-c:3 ) ~ Mic:roproc~ 30r 152 typlcally per0~n~3 keyboard ~canning by wrltixlg tl~riz.l datz~ byte~ to ri~l input o para~ 0-3ariE~l convert~r 8hi:et register 170. A con~3ntlonal ~er:lal data write routln~ performed by ~lcropro-:e~or 152 cau~
~hift regi~t~r 170 propagat~ a~ activ~ low bit vzllu~
~u~c~iY~ly to ou~pu~s C0 ~Q13, Cl (Q2), C2 (Q3~, and C:3 (Q4). 1~ Q5 output o~ ~hift r~gi3ter 170 ~elact~ operational mod~ ~co~Tunand or data) of display modul~ 22 (1 pr~sent)0 th~3 Q6 oukpu~
cs)n~rol~ ~o ~tate of backllgh~ LE~D~ for di ~play 122, and t~he ~,7 output provid~ control ov~x Lhl) bacXlight~ for the3 k~ypad ( or to provido ~ scan indicator ~or the M-TL configuration i~ de~ired).
Di~play module~ 2~ connect~ to microproces~or 152 by an al~ctrical conn~ction o th~ fl~x-typ~
circuit boa~d to th~ diaplay module 22. In a pr~f~rred ~mbodl~llt, th~ 1~ c~ rcuit i0 pr~ssure ~lt o~ cl~mp~d to tho approprlate~ co~ctlon fing~rs o~ ~ di Qpl~y bo~rd to p~ovide!~ th~ ctris~l co2~a~etion. 1 iscordnect~o~ of th~ dlsplay modul~ 22 ro~ ~nicrop~oco~or 152 (znd a~soclatod controll~r circuitr~ ~ doe~ not p~lrmit any o~ ~ ml~roproc~or l lin~ to cont~c~ ground pote~ial or othe~
~gnal l~n~ pot~ . A3 d~2c~ib~d pr~viou~ly, 1n~tallatlo~ o~ ~ di~play ~odulo 22 i8 mo~tly matt~r o~ ~ow~t~n~ th- di~play rao~ul~ to tho in~ld~
of ths trsnsee~ivor 10 ~ha~sia usinS~ t~nerl~, and then connsctl~g th~ dl3play modull~ to the m~croproc~or and a~oclat~d controllor circultry via t~a~ pr~sæurQ or cl~np-typ~ co~n~ction d~acribed , -,. . .
,. , ~:
. ... : : :
,, . , ~
45MRo061 Dlspl~y m~31ul~ 22 î~ a pxaerr~d embodlm~nt ~ îude~ a conv~n~ional r~ controllar l~O (~.g~, typ~ uPD7225 muau~ackured by ~C Electronic~ and a conYes~tlonal rgD pan~l-typ~ display 122. I~ the pre~rred e0bodlme~nt, controller 180 rec~lve8 ~erlal data ~ignal~ ro~ mlcroproces~or 152 ov~r ROP~OC~:SSOR DAT~ OUT ll~a~, conv~rt~ tho8q3 R~3Xi~
da~a ~ignal~ lnto l:.CD di~play drlvlny ~ aal~ i~ a convenkiot~ er, and applie~ the drlvirlg 81gnal8 ~o produc~ a dl~play on 1~ dl~play 122. In a pre~erred arrarlg~mer~1:0 an addltional LED da: ive 182 may s~lectiY~ly provide LCD back ll~t control und~r m:lc:roprocesaor 152 con'crol) via a Q6 oukpu~ of ~ r~gl~ter 170 to illum~n~tq~ 17 baclc 1~ ght LEDs 184, 186.
A~ m~t~oYl~d above, microprocas~or 152 provldes da~a to controller 180 vla the ~icroproces~or DATA
OUT lin~. EIow~verO thl~ DAT~ OUT lir~ ot dodicat~3d to dlsplay ~nodul~ 22, bu~ r~th~r 1~ u~ed by ~h~ sRlc~op~oca~or to conum~lcat~ wlth ~rarlou~
o~r tr~e~iv~r co~po~e~t~ ( lneluding, ~or ~xampla, ~l~t roS~isto~ 1703. Accordl2~,~1y, an a~ditlonal conl:rol lin~ DI~P ~ ( "displ~y enable" 3 i~ dropped to ~n aetlv~ low l~v~l to en~
corltrollar 180 ( lr~ pr~f~rr2d embodim~n~
co~rol lln~ i~ connoct~d to th~ controller "Chlp Sel~c~ Ut). ~IS;U:R~ S 1~ ~ ~che~a~l~ tl2ll1ng diagr~n o ~x~pl~ry control ~ignal~ chan~aed botw~n m~cropa:oc~oo~ lS~ ~nd cont~oll~r l8O in th~
pr~rred ~mbodi~nt. To writ~ d~ta3 to controll~
180 ~or di~play, mlcroproco~or 152 ir~t w2~1te~
approprlat~ dat~ to on~ute~ that th~ C~D lin~ (CQ5) . ~ :
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45M~00612 2 ~
la output of ~hlft reylster 170 ~3electa "data" rather than "contIol" mad~ P'or ontroller 180, and th~r microproces~t~r 152 a88erti~ ( active low3 DISP E~
s~gnal. In r~poll~e to ~:his (n~d~e7'An, F~E 5) active low I:)ISi? ENA ~ignal 1eY01~ controller 180 Eactlvatea lt~ nor~ally inactivs tri~ate DATA OUT
lin~ generat~ an actlve low lev~l on ~is lin~ for about 30 ~iero~ecs:~nds and t~erl pull~ the lin~ up to logl~ lev~l 1 ( FIl~ 5, eds~e "B" ) . ~icroproces30r 152 begin~ to tra~mit ~e~rlal data on its 1:3ATP. C)UT
lina (thl~ ~erial data repr~sent~ inforrnation to b~
di~played on di~play 122). ~hen controller 180 receive~ the data, lt a~aiEl as~rt~ its ( actlve low) DISP BUSY signal (which i~ normally "pulled up"
withirl controll~r 1~ ccept when active low) to inorm mlcroproc~s~or 152 that it i8 busy receivlng and proc~sælng that data. Controller 180 continue3 to assert DIS~? 13USY signal in t~l9 pr~erred e~odiment until i~ 18 ~dona" handling the data las tra~mltted to ik by mirroproc~s3or 152 80 that the microproc~s~or do~a~ not attempt to s~ns~ additional data to the~ comtrollsr 180 b~for~ th~ controller :18 r~dy to r~ceiv~ arld h~ndl~ lt.
~ n th~ pr~err~d embodim~nt, microprocessor 152 det~rmlne~ w~ r di~play module 22 i~ pr2~ant or not by enabl~.ng th~ di~play module (by a~s~rting the activ~ low DI~;~? ENA lin~) and then testinq whether ~:h~ l)ISP E~U5Y l$no i~ assertocl in r2~pons~.
R0~E~rrlng to FIGURE 6; (a ~he~matic 10w chart o e~empl~ry proqra2~ cont~ol ~opo perorm~d by ~lcropxoc~s~or 152 ln th~ pruoa~ed ~mbodiment to det~r~in~ who~r d~play modul~ i~ pr~ent or ab~nl:), saicroprsc~s~sor 152 ~lr~t a~sert~ DISP
.
:
' 45MRo061~
13NA line (bls:7ck 200~ and th~n monltor~ thQ J~I~P BUSY
lin~. I di~play ~aoslul0 22 1~3 pr0~ , controller 180 will respon3ively ~a~es~ ~e DI5P BUSY li2le. I~
dlaplay module 22 11 not pr~ nt, on th~3 other hand, the stat~ o~ DISP BUS~ line w~ll no~ change. If m~Lcroproce~or 152 d~t~ct~ the DI5P BIISY lin~
ha8 tran~itio~ d, iLt conclude~ that di~play module 22 1~ pre~ant ans3 begln~ op~ratlng in a full-f~atured mod~ ~mowal as M-PA (block 204j. X~
mlcroproc~aor 152 d2t~cts no tran~ition o th~ DIS2 BUSY lin2, on the okhe~r h~nd, it op~rate~3 in3t~ad in a mode oferir~g mor~ limited functlonal~ ty kr~own a~ ~
M-TL (block 206). In th~ prQfQrred ernbod~.ment, t~
t~t performed by docislo2l block 202 may, if 1r~d, b~ reiteratsd ~v~ral tlme~3 bQ~or~ block 206 8el~ct8 1:ha M-T~ mod~ in order to prev~nt tha transc~iver from e~roneously ~ntexing an impropç~r mod~a of op~rati on .
It wlll be appr~clated t}~at deci3~ on block 202 wlll dot~ct not only ~ pr~s3r~c~ or ab~nco o display ~nodulo 22, but al~o who~Y~r th~ d~pl~y modullo 1~ ~unct~02~al or notO Ihat io, R di~play module 22 pr~nt w~thl~ tran~c~lv~r 10 wh~ch has failed ~uch th~t it ~o lon~r as~rt~ the DISP BUSY
lln~ 1~ roaponse~ to ~ als 30nt 'co it by microp~os:~x~or 152 will be~ trsate~d by docisiorl block 202 a~ ~f t~o diopl~y modulo ie~ not lnstall~ad wlthin th~ tx~aceliv~r ( thu~ c:~u~ o tran~c3iv~r o oporato 1~ ~ lowo~ unct~lvn~11ty M-TL modo). Thi8 e2ltur~ o~ tho ope~tlon o~ th~ pra~orrod ombodimo~t may hav~ advanltag~ nco it i~ typically not po~ible~ to maint~ hlqh ~tmctlonality of th~
M-PA modle~ wlthout ~e~ o~ a dl~pl~y ~ ~ w:lll now ' ' ' ..
.. . .
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45MRo06l2 2 ~
b~com~ appare~nt).
7 i~ a sc~,ematis: ~tatq~ dla~r~n of d:ler~nt u~e~r input ~tate~ prov:Ldad by th~ FI~
tr~n~celiv~r c3urlng ~ranE~c~lvsr op~ratioIl in 'ch~ M-~A
mod~ . lne "nonnal n state of tr;~nsc~iver lO :1~ to di~play ~ currently s~1ect~sd op~ratln~ chantlol on display 122 (blo~k 210) . Depr~a~lng ~ me~u" ) k~ ~elQct~ di~rent u~ lnput stat~ 212. E:ach of u~3~r i~put ~tat~ 212 p~r~it~ the~ u~r to :L~put d~~r~nt p~ra~t~rs ~nto tran~ lve~r lO, and most 0~ 8el~ u~r input ~tate~ re~uire di~play l22 for eff~cti~ int~rfacing b~tw~en t;h~ user and the transs:eiv~r 10. For ~xampl~, in the~ chann~l state 212A, depx~ing a furt:;her SELECT ( ~S" ) cau~
microproc~aor 152 1:o di~play 3 par~ ular chann~l ~lectioll which t~o usor may t~-~n altor by aga~n depre~ing th~ s~ ct k~y. Onco ~ approprlat~
c~ann~ d~ ~play~d on di~play 122, tho u~r may then depr~ th~ E:XIT ( "}:" ~ koy to ~cuta t~e chang~ ~nd t~u~ provldo opor~tio~ on a n~w oporatlng ch~nnol. 8~milarly, phon~ ~dlt l-t~tO 212G p~
the u~or to rovlow proviou~ly inputtod and ~tor~d phon~ nw~or~ o~ d1 splay 122 ancl pormit~ tho u~r to entsr ne~w pho~ numb~3r~ and ~toro l~a~o into th~
tr~noc~ivor' ~ non-volat~lo ~omory 154. Thi8 ~unction i~ difficul~ or impo~lblo to p~orm w~thout a di~play 122 for dl~pl~ylng t~ p~e~viotl~ly stor~d p~on~ rs.
FIGU~ 8 i~ a. schomatl~: ~t~to diag~A o~ tha mor~ mlted ~-TI. modo o~ oporation. A~ hown in FIGUR3 3, ~ TL configuratlon ln th~ pr~vious e~odim~2at, includo~ d w11:h only thro~
key~ s ~ CT nnd SCN. Th~o thr~ lcoy~ ar~
, ,-, '' .
45~1R00612 ~1 provlded to p~it th~ u~e?r to lnput a chaam~l ~ca li~t vla char~l solector lulob 42. l~e norm~l "ch~nn21 di~plaly" 81:at~ 230 shown ln FIGUR~ 8 iJ
re~lly a non-di~play ~ka~o if dl~pla~r module 22 la ~baent. By d~pre~s~in5~ ~M key, ~ u~e~r unlock~ th~
otlle~ two kQY~ ( ~tat~ 232 ) . By th~n depx~ g t:he ACT key, th~ u~er cle~r~ praviou~ly entcred ~can list (tho enl:lr~ ~c~ ll~t must be cl~ar~d bç3cau~
ther~ 18 no dl~play 122 to permit ~h~ u~r to ~lectlvely revlew and chang~ ~e preYlous entrie~). ~e us~r may then "~ulld" a chann~l scan list by ~le-~ting channel~ using lcnob 42 and 8tr~Xing the SCN key (block~ 234~ 2363.
Of course, th~ TL and M-PA mod~ of tran~c~iver 10 operation shar~ a gr~at d~al o unstionality in term~ o~ chann~l ~ca~nlng a8 well a~ in per~orming varicu~ o~er func:t~on~ re~auired by transceiYer 10 (e.g., recQivin~ and ~ran~mltting RF
gnal~ ln accordanc~ with in~ormation ~tor2d in ~ar onallty ~ROM 154, rosponding to pr~-progranmed ton~ ~uolch ~ 3tc. ). Th~ main di~f~reneo botw~en th~ M-TL and M-~A oparatlonal modes 1~ t~at th~ Pq-Tr. mocl~ h~ ~ much more limlted uYer lrlt~r'ace capabillty b~cau~ of th~ absenc~ of dl~play 122.
In th~ prei~erred enbodiment, p~r~onality PROM
154 typically ~tor~ a byte of information i~dlcatlng transc~iv~r typ~. Th~8 ~Yl?13 in~o~atlo~
may be~ u~ed alternately to ~or in corlJullction wlth) acemplary progra~ control ~t~p~ sho~ in FIGURE~
6 to d~t~rmin~ w}~eth~r transc~iv~r lO i~ con~igur~d with an dl~play modul~ 22. In th~ pra~erred ~mbodiment, lni~ormation l~ downloaded lnto p~rsonallty ~ROM 154 ~u~t b~or~ th3 tran~t:0:
~ 5MRO o 6 1 2 22 ~ 3 ~ ~
provided to a purGhaser, auch in~oxma~lon spe~c:lfyla~g variou~ pur~ha~0r-sp$cific inorma'cion (e.g., opQr~tlng freguenci~3~, tr~nsc~iver ldentl~içatlon, authoriz~d groupa/lndividual)3 ~e ~ranl!3ce:1ver may cosnmunicate w:).t~, etc. ) . An addltional byte of in~ormation al~o download~d in tha pre;e~rred emboelime~t lfler~tifie3 ~he ~ran~ iver type~ . g., to permit the conventional prsgr~nins~ vlc~ u~ed to dev~lop and download th~ informatlon into PROM 154 to con~lgure that informat~Lon appropriately~.
Micxoproces~or 152 sllay, if de~lr~d, read that TYPE
byte o~ informatiorl to determine whether o~ not transc~iver 10 is equipped w1th a di~play, and th~n begin op~ratiny in th~ M-TL mod~ ba~ed on th1~ ~PE
illform~tion rather l:han on the de~tected fai1ure o contro11er 180 to as~rt th~ ~I5P BUSY 1ine. Thes~
two a1ternate techniqu~ ars not, of cour~e, equiva1ent to on~ anoth~r. For example, if incorre~ct TYP15 in~ormatlon wa~ dowIl1oaded lnto PROM
154; ~ran~ceiv~r ~0 ~nlgh~c b~gin operat1ng in M-TL
~ode!\ (ev-3~ ~ough it wa~ ~guip~ped wlth a di~p1ay modllla 22 ) or vic0-vsr~a 1~ it ba~e~ 1ts dst~rmi2lation ~olely oS~ conten~s of P~OM 154 rat~e~r t~han on th~ ~ctua1 d~teGtion of th~ presence o~ 33nc~ o a dl~play modul~ 22. ~oweve3r, it would b~ r~latively di~flcult or a u~er to obtain and ln~tall a di~pl~y modul~ 22 ln order to up~rade hi~ transcelv~r 10 ~ter purcha~, and the additional u~er int~rf4c~ ~unctionality prov~d~d by op0ration in M-PA i~ virtually worthle~ u~
di~play module 22 i8 pY'08i!!1nt.
Wh~le th~ inventlon hao ~n d~scrlhed ln conn~c'ciotl with whut l# pr~ntly con~id~r~d to b~
, - ~ ' , .
~5MRo0612 2 ~
~ae mo~t practiLcal and prQ~erred ~mbod~ nt, lt i~
to be under~tood that the~ inY~ntion i~ not to b~
li~aited to the disclo~Qd embodlment, but on t~e~
contx ry, iE~ lntend~d to cov~r various modi~ications and eguivalent arrangement~ includQd wlthln t~ae ~plrit and RCOpe of the app0nded clatm~.
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Claims (23)
1. A radio transceiver comprising:
a housing including a front cover provided with a display port;
a main controller board mounted within said housing;
a display board attached to an interior surface of the front cover adjacent said display port, said display board electrically connected to said main controller board by a flexible connector;
a removable display escutcheon plate mounted on an exterior surface of said cover, overlying said display port; and fastening means extending through said cover and connecting said display board to said display escutcheon plate.
a housing including a front cover provided with a display port;
a main controller board mounted within said housing;
a display board attached to an interior surface of the front cover adjacent said display port, said display board electrically connected to said main controller board by a flexible connector;
a removable display escutcheon plate mounted on an exterior surface of said cover, overlying said display port; and fastening means extending through said cover and connecting said display board to said display escutcheon plate.
2. A radio transceiver according to claim 1, wherein said fastening means comprises a plurality of screw fasteners receivable in a corresponding plurality of threaded bores formed in said display escutcheon plate and which are open only at a rear surface of said display escutcheon plate.
3. A radio transceiver according to claim 1, and including a blank escutcheon plate, interchangeable with said display escutcheon plate in the event said display board is removed from said transceiver.
4. A radio transceiver according to claim 2, and including a blank escutcheon plate, interchangeable with said display escutcheon plate in the event said display board is removed from said transceiver.
5. A radio transceiver according to claim 1 and further including a control panel mounted on said front cover, a portion of which lies behind said display escutcheon plate.
6. A radio transceiver according to claim 3 and further including a control panel mounted on said front cover, a portion of which is adapted to be behind said display escutcheon plate.
7. A radio transceiver as defined in claim 2 wherein each of said threaded bores is formed in a boss extending rearwardly from said display escutcheon plate.
8. A method of reconfiguring an otherwise standardized radio transceiver construction which includes a transceiver unit mounted in a housing having a front cover formed with a display port; a main controller board within the housing; a display board attached to the front cover of the housing and in electrical connection with said main controller board; and a display escutcheon plate overlying said display port; the method comprising the steps of:
a) disconnecting said display board from said main controller board;
b) removing said display escutcheon plate and said display board from said front cover; and c) replacing said display escutcheon plate with a blank plate.
a) disconnecting said display board from said main controller board;
b) removing said display escutcheon plate and said display board from said front cover; and c) replacing said display escutcheon plate with a blank plate.
9 . A method as defined in claim 8 wherein, during step (b) said display escutcheon plate and display board are removed simultaneously by the removal of common fasteners.
10. A method as defined in claim 8 wherein step (a) is carried out without otherwise substantially reducing the functions of the main controller broad.
11. A method as defined in claim 8 and wherein said radio transceiver further includes a first control panel cover mounted on said front cover and wherein prior to step (c), the control panel cover is removed and, after step (c), a second interchangeable control panel is mounted to said front cover.
12. A digitally controlled radio transceiver optionally including an internal visual display module, said transceiver comprising:
connector means for connecting to said display module; and a digital controller connected to said connector means, said controller including:
user interface means for alternately providing first and second user interface modes, said first user interface mode requiring cooperation with said display module, said second user interface mode not requiring cooperation with said display module, testing means connected to said connector means for determining whether said display module is connected to said connector means, and mode selection means connected to said testing means and to said user interface means for controlling said user interface means to provide said first user interface mode if said testing means determines said display module is present and for controlling said user interface means to provide said second user interface mode if said testing means determines said display module is not present.
connector means for connecting to said display module; and a digital controller connected to said connector means, said controller including:
user interface means for alternately providing first and second user interface modes, said first user interface mode requiring cooperation with said display module, said second user interface mode not requiring cooperation with said display module, testing means connected to said connector means for determining whether said display module is connected to said connector means, and mode selection means connected to said testing means and to said user interface means for controlling said user interface means to provide said first user interface mode if said testing means determines said display module is present and for controlling said user interface means to provide said second user interface mode if said testing means determines said display module is not present.
13. A transceiver as in claim 12 wherein:
said display module includes means for generating signal transitions; and said testing means comprises means for sensing the occurrence of said signal transitions.
said display module includes means for generating signal transitions; and said testing means comprises means for sensing the occurrence of said signal transitions.
14. A transceiver as in claim 12 wherein:
said transceiver further comprises keypad means for inputing user selections;
said user interface means comprises:
first mode means preprogrammed for providing display of a first set of control selection prompts via said display module and for accepting user control inputs from said keypad means so as to provide a first set of functions, and second mode means preprogrammed for providing no display of control selection prompts via said display module and for accepting user control inputs from said keypad means so as to provide a second set of functions different from said first set; and said mode selection means includes means for selecting between said first and second mode means.
said transceiver further comprises keypad means for inputing user selections;
said user interface means comprises:
first mode means preprogrammed for providing display of a first set of control selection prompts via said display module and for accepting user control inputs from said keypad means so as to provide a first set of functions, and second mode means preprogrammed for providing no display of control selection prompts via said display module and for accepting user control inputs from said keypad means so as to provide a second set of functions different from said first set; and said mode selection means includes means for selecting between said first and second mode means.
15. A digitally controlled radio transceiver optionally including an internal visual display module, said transceiver comprising:
housing means, defining an interior space and an outer surface, for housing a control module and for optionally housing said internal visual display module therein;
disengageable electrical connection means disposed within said housing for optionally electrically connecting to said display module;
electric switch means disposed on said housing outer surface for converting mechanical energy into electrical signals; and microprocessor means, disposed in said housing, coupled to said connection means and connected to receive said electric switch means electrical signals, said microprocessor means for:
determining whether or not said connection means is connected to a display module, if said determining means determines said connection means is connected to a display module, providing a first user interface mode including displaying prompts via said display module and processing user inputs from said electric switch means responsive to such prompts, and if said determining means determines said connection means is not connected to a display module, providing a second user interface mode including displaying no prompts via said display module and processing user inputs from said electric switch means.
housing means, defining an interior space and an outer surface, for housing a control module and for optionally housing said internal visual display module therein;
disengageable electrical connection means disposed within said housing for optionally electrically connecting to said display module;
electric switch means disposed on said housing outer surface for converting mechanical energy into electrical signals; and microprocessor means, disposed in said housing, coupled to said connection means and connected to receive said electric switch means electrical signals, said microprocessor means for:
determining whether or not said connection means is connected to a display module, if said determining means determines said connection means is connected to a display module, providing a first user interface mode including displaying prompts via said display module and processing user inputs from said electric switch means responsive to such prompts, and if said determining means determines said connection means is not connected to a display module, providing a second user interface mode including displaying no prompts via said display module and processing user inputs from said electric switch means.
16. A transceiver as in claim 15 wherein:
said connector means includes signal line means for connecting said display module to said microprocessor means;
said display module includes means for changing the state of said signal line means; and said determining means includes testing means connected to said signal line means for determining the occurrence of a change of state of said signal line means.
said connector means includes signal line means for connecting said display module to said microprocessor means;
said display module includes means for changing the state of said signal line means; and said determining means includes testing means connected to said signal line means for determining the occurrence of a change of state of said signal line means.
17. A transceiver as in claim 15 wherein:
said transceiver means further includes memory means coupled to said microprocessor means for storing personality parameters, said personality parameters including a TYPE parameter indicating whether said transceiver is equipped with said display module; and said determining means is responsive to said TYPE parameter stored by said memory means.
said transceiver means further includes memory means coupled to said microprocessor means for storing personality parameters, said personality parameters including a TYPE parameter indicating whether said transceiver is equipped with said display module; and said determining means is responsive to said TYPE parameter stored by said memory means.
18. A digitally controlled radio transceiver assembly kit including:
an optional visual display module;
housing means, defining an interior space and an outer surface, for housing a control module and for optionally housing said visual display module therein;
connector means disposed within said housing for optionally electrically connecting to said display module;
first keypad means disposable on said housing outer surface for accepting a first set of user inputs corresponding to a first operational mode requiring the presence of said display module;
second keypad means disposable on said housing outer surface for accepting a second set of user inputs different from said first set, said second user inputs set corresponding to a second operational mode not requiring the presence of said display module; and microprocessor means, disposed in said housing, coupled to said connector means and adapted for coupling to either of said first and second keypad means, for:
determining whether or not said connector means is connected to a display module, if said determining means determines said connector means is connected to a display module, operating in said first operation mode in cooperation with said first keypad means and said display module, and if said determining means determines said connector means is not connected to a display module, operating in said second operation mode in cooperation with said second keypad means.
an optional visual display module;
housing means, defining an interior space and an outer surface, for housing a control module and for optionally housing said visual display module therein;
connector means disposed within said housing for optionally electrically connecting to said display module;
first keypad means disposable on said housing outer surface for accepting a first set of user inputs corresponding to a first operational mode requiring the presence of said display module;
second keypad means disposable on said housing outer surface for accepting a second set of user inputs different from said first set, said second user inputs set corresponding to a second operational mode not requiring the presence of said display module; and microprocessor means, disposed in said housing, coupled to said connector means and adapted for coupling to either of said first and second keypad means, for:
determining whether or not said connector means is connected to a display module, if said determining means determines said connector means is connected to a display module, operating in said first operation mode in cooperation with said first keypad means and said display module, and if said determining means determines said connector means is not connected to a display module, operating in said second operation mode in cooperation with said second keypad means.
19. A kit as in claim 18 wherein:
said connector means includes signal line means for connecting said display module to said microprocessor means;
said display module includes means for changing the state of said signal line means; and microprocessor includes testing means connected to said signal line means for determining the occurrence of a change of state of said signal line means.
said connector means includes signal line means for connecting said display module to said microprocessor means;
said display module includes means for changing the state of said signal line means; and microprocessor includes testing means connected to said signal line means for determining the occurrence of a change of state of said signal line means.
20. A kit as in claim 18 wherein:
said kit further includes memory means coupled to said microprocessor means for storing personality parameters, said personality parameters including a TYPE parameter indicating whether said transceiver is equipped with said display module; and said microprocessor includes determining means responsive to said TYPE parameter stored by said memory means for determining whether said display module is present.
said kit further includes memory means coupled to said microprocessor means for storing personality parameters, said personality parameters including a TYPE parameter indicating whether said transceiver is equipped with said display module; and said microprocessor includes determining means responsive to said TYPE parameter stored by said memory means for determining whether said display module is present.
21. A digitally controlled radio transceiver comprising:
a housing having an outer surface;
RF signal generating/receiving means disposed in said housing for receiving and demodulating RF
signals and for generating and transmitting modulated RF signals;
digital controller means disposed in said housing and connected to said generating/receiving means for controlling the operation of said generating/receiving means in response to program control instructions executed by said controller means;
memory means disposed in said housing and connected to said digital controller means for storing said program control instructions; and external connector means disposed on said housing outer surface and coupled to said memory means for receiving said program control instructions and for storing said instructions into said memory means.
a housing having an outer surface;
RF signal generating/receiving means disposed in said housing for receiving and demodulating RF
signals and for generating and transmitting modulated RF signals;
digital controller means disposed in said housing and connected to said generating/receiving means for controlling the operation of said generating/receiving means in response to program control instructions executed by said controller means;
memory means disposed in said housing and connected to said digital controller means for storing said program control instructions; and external connector means disposed on said housing outer surface and coupled to said memory means for receiving said program control instructions and for storing said instructions into said memory means.
22. A transceiver as in claim 21 wherein:
said transceiver further optionally includes display means optionally disposed within said housing and coupled to said digital controller means for providing a visual display; and said digital controller means includes means for testing for the presence of said optional display means.
said transceiver further optionally includes display means optionally disposed within said housing and coupled to said digital controller means for providing a visual display; and said digital controller means includes means for testing for the presence of said optional display means.
23. The invention as defined in any of the preceding claims including any further features of novelty disclosed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/390,242 US5077832A (en) | 1989-08-07 | 1989-08-07 | Radio transceiver with optional display |
| US390,242 | 1989-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2016011A1 true CA2016011A1 (en) | 1991-02-07 |
Family
ID=23541693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002016011A Abandoned CA2016011A1 (en) | 1989-08-07 | 1990-05-03 | Radio transceiver with optional dsplay |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5077832A (en) |
| JP (1) | JP3038231B2 (en) |
| CA (1) | CA2016011A1 (en) |
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|---|---|---|---|---|
| JP3126835B2 (en) * | 1992-05-25 | 2001-01-22 | パイオニア株式会社 | Car stereo |
| JPH06348867A (en) * | 1993-06-04 | 1994-12-22 | Hitachi Ltd | Microcomputer |
| US5581599A (en) * | 1993-12-30 | 1996-12-03 | Northern Telecom Limited | Cordless telephone terminal |
| FI99071C (en) * | 1995-02-15 | 1997-09-25 | Nokia Mobile Phones Ltd | Procedure for use of applications in a mobile telephone as well as a mobile telephone |
| US6771981B1 (en) | 2000-08-02 | 2004-08-03 | Nokia Mobile Phones Ltd. | Electronic device cover with embedded radio frequency (RF) transponder and methods of using same |
| JPH08223260A (en) * | 1995-02-16 | 1996-08-30 | Fujitsu Ltd | Portable radio terminal equipment |
| US5771448A (en) * | 1995-06-26 | 1998-06-23 | Ericsson Inc. | Battery pack having personality data stored therein |
| US5912882A (en) | 1996-02-01 | 1999-06-15 | Qualcomm Incorporated | Method and apparatus for providing a private communication system in a public switched telephone network |
| US5911121A (en) * | 1996-05-23 | 1999-06-08 | Ericsson Inc. | Method and apparatus for automatically configuring a control program for a mobile radio communication device |
| SE517491C2 (en) | 1997-06-06 | 2002-06-11 | Ericsson Telefon Ab L M | Mobile Phone Device |
| US6314280B1 (en) | 1997-09-25 | 2001-11-06 | Visteon Global Technologies, Inc. | Audio bezel automatic identification |
| US6097991A (en) * | 1997-09-25 | 2000-08-01 | Ford Motor Company | Automatic identification of audio bezel |
| US6107985A (en) | 1997-10-30 | 2000-08-22 | Ericsson Inc. | Backlighting circuits including brownout detection circuits responsive to a current through at least one light emitting diode and related methods |
| WO1999023762A1 (en) * | 1997-11-03 | 1999-05-14 | Harris Corporation | Reconfigurable radio system architecture |
| DE29909075U1 (en) * | 1999-05-19 | 1999-07-22 | Deutsche Telephonwerk Kabel | Telecommunication terminal |
| JP4177525B2 (en) * | 1999-07-23 | 2008-11-05 | 京セラ株式会社 | Mobile phone |
| GB2355126B (en) * | 1999-10-08 | 2004-02-11 | Nokia Mobile Phones Ltd | Communication terminal having exchangeable parts |
| GB0010937D0 (en) * | 2000-05-05 | 2000-06-28 | Nokia Mobile Phones Ltd | Removable housing cover for a portable radio communication device |
| US6898283B2 (en) * | 2000-05-05 | 2005-05-24 | Nokia Mobile Phones Ltd. | Exchangable housing cover for a portable radio communication device |
| GB0111722D0 (en) * | 2001-05-14 | 2001-07-04 | Innovision Res & Tech Plc | Component identification |
| WO2002093881A2 (en) * | 2001-05-14 | 2002-11-21 | Innovision Research & Technology Plc | Portable communication devices |
| CN1582536B (en) * | 2001-12-18 | 2010-05-05 | 诺基亚有限公司 | Removeable housing cover for portable radio communication device |
| US7421269B2 (en) * | 2002-03-01 | 2008-09-02 | Nokia Corporation | Functional cover for use with a wireless terminal |
| KR100471068B1 (en) * | 2002-07-10 | 2005-03-10 | 삼성전자주식회사 | All-In-One Computer |
| US7181007B2 (en) * | 2002-09-17 | 2007-02-20 | Motorola Inc. | Flat-profile keypad assembly and label |
| US7209769B2 (en) * | 2003-08-26 | 2007-04-24 | Motorola, Inc. | Automated user interface feature for a portable communication device |
| USD938928S1 (en) * | 2019-03-26 | 2021-12-21 | Black & Decker Inc. | Communication device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4254504A (en) * | 1978-08-08 | 1981-03-03 | International Telephone And Telegraph Corporation | Control apparatus for a transceiver employing a programmable memory |
| US4486624A (en) * | 1980-09-15 | 1984-12-04 | Motorola, Inc. | Microprocessor controlled radiotelephone transceiver |
| US4843588A (en) * | 1982-09-17 | 1989-06-27 | General Electric Company | Programmable radio frequency communications device capable of programming a similar device |
| US4525865A (en) * | 1983-10-03 | 1985-06-25 | General Electric Company | Programmable radio |
| US4718110A (en) * | 1985-10-24 | 1988-01-05 | General Electric Company | Portable two way radio with split universal device connector apparatus |
| US4792986A (en) * | 1985-12-11 | 1988-12-20 | General Electric Company | Portable radio system with externally programmable universal device connector |
| US4887311A (en) * | 1987-04-17 | 1989-12-12 | General Electric Company | Radio with options board |
| US4856088A (en) * | 1988-01-14 | 1989-08-08 | Motorola, Inc. | Radio with removable display |
-
1989
- 1989-08-07 US US07/390,242 patent/US5077832A/en not_active Expired - Lifetime
-
1990
- 1990-05-03 CA CA002016011A patent/CA2016011A1/en not_active Abandoned
- 1990-08-03 JP JP2206669A patent/JP3038231B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP3038231B2 (en) | 2000-05-08 |
| JPH0374937A (en) | 1991-03-29 |
| US5077832A (en) | 1991-12-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |