CA1131763A - Channel programing apparatus - Google Patents
Channel programing apparatusInfo
- Publication number
- CA1131763A CA1131763A CA318,444A CA318444A CA1131763A CA 1131763 A CA1131763 A CA 1131763A CA 318444 A CA318444 A CA 318444A CA 1131763 A CA1131763 A CA 1131763A
- Authority
- CA
- Canada
- Prior art keywords
- channel
- tuner
- circuit
- mode
- tuning
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/485—End-user interface for client configuration
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
- H04N5/775—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/50—Tuning indicators; Automatic tuning control
Abstract
ABSTRACT OF THE DISCLOSURE A channel programing apparatus having first and second tuners, an image reproducing device, a recording and reproducing device and a timer. In this case, when the timer is in its set state the output signal from the first tuner is fed to the image reproducing device while the second tuner is made in such a state to select a predetermined channel. When a set time of the timer arrives, the signal applied to the image reproducing device is switched from the output signal of the first tuner to that of the second tuner by the signal derived from the timer.
Description
BACKGROUND OF THE INVENTION
Field of the Invention The present invention relates generally to a channel programing apparatus, and is directed more particularly to a channel programing apparatus which is simple in construction but can easily program or reserve desired channels.
~escription of the Prior Art In the art there is proposed such a television apparatus, in which a television receiver and a video tape recorder (which ~ will be hereinafter referred to simply as a VTR) are combined and two tuners are provided for the television receiver and VTR
for the latter to record one of the other coincident programs which are not received by the former (which will be hereinafter referred to as a hidden program).
In the art such a channel programing apparatus is proposed in which a timer, which will control the ON and OFF
of a power supply source, is used to reproduce a desired pro-gram on a television receiver after an appointed or reserved time. That is, in this prior art apparatus the timer is ganged with the channel selector device of a tuner and at a time ap-3~ pointed or reserved by the timer the channel selector device ischanged to a channel which is appointed. Thus, ..... . . . . . ..
, .
.~ ~
... , ~
1131'763 the prior art channel ~rograming apparatus is complicated in whole the construction and verv expensive.
O~JECTS AND SUMMARY OF THE INVENTION
Accordingly, it is an object of the present invention to provide a channel programing apparatus free from the defects of the prior art.
It is another object of the invention to provide a channel programing apparatus used in such a television appar-atus which can record a hidden program in which a channel pro-gram can be appointed by using only a timer which will control only the ON and OFF of a power supply source.
It is a further object of the invention to provide a channel programing apparatus which utilizes two tuners provided in a television apparatus to reserve a channel program with simple construction.
According to an aspect of the present invention there is provided a channel programing apparatus which includes first and second tuner circuits, an output of the second tuner circuit being supplied to a video tape recorder (VTR) to be recorded when the VTR is in recording mode, a video signal re-producing device including a cathode ray tube, a timer circuit, a set time of which can be programmable, a switching circuit for switching the outputs of the first and second tuner circuits to be connected to the video signal reproducing device, and a circuit for controlling said switching circuit by the output of the tuner circuit such that the output of the second tuner circuit, which is selectable by a channel selecting device, is supplied to the video signal reproducing device at the set time.
~ore particularly, there is provided:
Channel programing apparatus comprising:
video recording means capable of being set to one of seryeral ~odes, including a recording mode;
~13~63 first and second tuner circuits, providing first and second tuned signals, respectively, said second tuned signal ~e~ng supplied to sa~d video recording means to be ~.
reco-ded when ~aid video recording means is in said recording mode, and including first and second electrically tunable tuning devices, respectively;
channel control means for controlling the outputs of said first and second tuner circuits, whérein said channel con-trol means provides a first and a second tuning control output, and said first and second electrically tunable tuning devices are tuned to a broadcast frequency channel determined by said first and second tuning control outputs, respectively;
timing means having an unset state and being changeable to a set state in which said timing means produces a timed com-mand at a selected time;
tuner switching means for selectively applying one of said ~irst and second tuned signals to said video display means;
means for causing said tuner switching means to switch over so as to apply said second tuned signal to said video display means in response to said timed command; and latching means for causing the second tuning control output to be fixed when said timing means is changed to said set state, whereby manual tuning of said second tuning device is inhibited when said timing means is changed to said set state.
The other objects, features and advantages of the present invention will become apparent from the following description taken in conjunction with the accompanying drawings through which like reference numerals designate the same elements.
-3a-'763 ~RIEF DE~;CRIPTION OF TH~ r~RA\vTNG.S_ - Fig. 1 is a systematic block diagram showing an e~cample of the channe} programing appar~tus according to the present invention;
Fig. 2 is a systematic diagram showing in block another example of the invention; and Figs. 3A to 3C are wavetorm diagrams used for e~cplaining the example of the invention shown in Fig. 2.
DESCRIPTIO~ OF THE PREFERRED E~BODI!~ENTS
The present inventioQ will be hereinbelow described with reference to the attached drawings.
Turnin~ to Fig. 1 which i5 ~ systematic diagram showing an esample ot the channel programing apparatus according to the invention.
1 designates an image reproducing member including a receiving circuit hicb comprises a circuit processing the luminance and carrier ; chrominance signals and a de~lection circuit. and a cathode ray tube 12. 2 desienates a ~tTR member. 3 a channel selecting device, and 4 a timer. respectively.
The channel selecting device 3 include~ an antenna 31. a distributor 32 receiving the broadcast signal trom the antenna 31. ~rst ro and second tuner circuit~ 33A and 33B receiving the output signal ~rom the distributor 32. ~ideo intermediate ~requency (VIF) ampli~iers 34A
and 34B receiving the output 5igna1s from the tuner circuits 33A and 33B .
respectively. and ~ideo detecting cireuit~ 35A and 35B supplied with the output signals ~rom the VTF ampli~iers 34A and 34EI . respectively.
The timer 4 includes a timer circuit 41 and a ~et switch 42. A relay 5 is provided between the receiving circuit 11 and the video detecting circuits 35A, 35B.
With the e~ample ot the invention showQ i~ FiB. 1. usually - a signal selected b~ the ~irst tuner circuit 33A is ~ed through ehe V~l~,0 ampli~ier 34A . video detecting circuit 35A and the br~ke contact of the relay 5 to the imagQ reproducing or television receiYer member 1, while a signal selected by the second tuner circuit 33B is fed through the VIF
ampli~'ier 34B and video detecting circuit 35P~ to the VTR member 2, respectivel~ .
Since tbe first and second tuner circuits 33A and 33B can independently select different chRnoels with each other, wheo ~ program of the brondcast chnnnel is reproduced on the screen of the cathode r~y tube 12. the VTR member 2 can record a program o~ a broadcast channel dirferent trom thaS reproduced on the cathode ray tube 12 or a so-c~lled hidden program.
',~'hen it is desired that the VTR 2 records a certain progrQm at a predetermined time set by the timer 4. the set switch 42 is made in contact with a contact "REC" in Fig. 1. Thus. when the set time ~Yill arri~e under the aboYe state. the timer circuit 41 produces a predetermi~-ed ~oltage Eo~ This voltage Eo is ~pplied to the V'TR member 2 to make the latter in record more and hence the prog~am selected by the tuner circuit 33B is recorded i~ the VTR member 2.
'~hen a program is appoi~ted or reserved. the tuner circuit 33B i~ set to be capable of selecting a broadcast channel on which the pro~ram to be appdnted e~ists. Then. the start time o~ the appointed program is set by the timer 4 and the set switch 42 is made in contact with "RESE~V~:" contact in Fig. 1. I,`nder the above state when toe set time will arri~e. the timer circuit 41 produces the predetermined ~oltage Eo similar to the case toat the program i!s recorded. Thu~, the rel~y 5 is energized by ehe voltage Eo and it~ make contact is closed .
Accordillgly. th~3 output from the video detecting circuit 35B is fed through the make contact o~ the relay 5 to the receivin~ circuit 11. At this time the tuner circuit 33B selected the reser~ed broadcast channel pro--gram. 50 that this reserved program is reprodùced OD the screeo of the cathode ray tube 12.
113~7S3 As described a~ove, the channel programing can be per-formed ~y the present in~ention with simple-construction.
I-n the example of the invention shown in Fig. 1, when the timer switch 42 is not set, it is so formed that it does not contact either one of ~oth the contacts "REC" and "RESERVE" as shown tn Fig. 1. As the tuner circuits 33A and 33B, either of a detent tuner or electronic tuning tuner can be used.
Another example of the invention will be described with reference to Fig. 2 in which the reference numerals same as those of Fig. 1 designate the same elements. In this example, electronic tuners are used as the tuner circuits 33A and 33B, and there are provided a set of channel selecting push-button switches Sl, S2,---SN common to both the tuner circuits 33A
and 33B. Further, in this example such a circuit is provided which will avoid any mis-recording in the VTR member 2.
In the example of the invention shown in Fig. 2, 36A
and 36B designate first and second channel selecting signal generating circuits which supply channel selecting voltages cor-responding to channels to be selected to the first and second tuner circuits 33A and 33B, respectively, and which have N's number o~ preset vol~mes ~ , VA2, -- VA and VB VB --VB and N'S
number of transistors TAl, TA2, --- TAN and TBl, TB2, -~TBN~ respectively.
Further, a memory circuit 38 is provided in connection with the second channel selecting signal generating circuit 38, an~ also there are provided an oscillator 39 and a counter 40.
In the example of Fig. 2, the detected output signals from the video detecting circuits 35A and 35B are selectively applied through a switching circuit 50 to the image reproducing member 1, while the detected output signal from the video de-tecting circuit 35B is always applied to the VTR member 2.This VTR member 2 produces a control signal Sc which ~ill rises up to "1" when the VTF. member 2 is made in the record mode. The tiner circuit 41 o~ the timer 4 produces a control signal ST which will rises up "1 " when the set switch 42 is made in contact with either one o~ the contacts "I~EC ' and "RE~I~R~E".
The control signal ~c from the VTR member 2 and the control signal ST from the timer circuit 41 are ?ed through an O~ cir~uit 51 to the memory circuit 38. This control signal ~;C is also applied through n OR circuit 52 to the switching circuit 50 RS its s~itching signal. while the control cignal ~;T is ~ed to the switching circuit 50 through a st~itch~g circuit 53, which i~ normally closed or ON. and the 07~ circuit 52 ~lso as the switching signal.
With the apparatus Or the invention constructed as above, ~when one of the cbannel selecting push button switches S1 ~ S2, --SN, tor e~ample, switch S1 ~or selecting the chalmal -1 is pushed do~n, a positive DC voltage obtained at a terminal 54 is applied through the closed switch 51 to the oscillator 39. Thus, the oscillator 39 starts its oscil-lation and produces a cloclc pulse. This clock pulse is ~ed to the counter 40 and the l~tter counts the cloclc pulse in advance. The output signal there~rom is applied to a decoder 37A . When one or the outputs DAl .
DA 2 ~ --DA N from the decoder 37A . for example . only output DA 1 in this case becomes "I". the trans~stor TAl is made ON thereby. \Yhen the transistor TA1 becomes ON, the ~oltage at the terminal 54 is by--passed therethrough and hence the o~cillator 39 stopes its o~cillation tt~ '~eep the ~ansistor T~1 in ON-state. ~ccordingly. even iî there-~îter the hand is apart rrom the bush-button switcb S and the ~wtch ~is~
!~1 returns to its OFF-state, the above state is kept . ~Jnde~sSatet the rirst channel selecting signal gener~dting circuit 36A produces such a channel selectlQg signal or voltage ~hich is set by the volume VAl for selecting the channel -1. This channel selectin~ voltage rrom the volume V-~1 is ~pplied to the variable capacitance diode provided in the 1~3~763 local oscillator and 50 on (not shown) of the tuner circult 33A . Thus, the broadcast wa~e of the cha~mel-1 is selected and then received.
At this time, if the VTR member 2 is not in the r~cord mode and the t~ner 4 is not set, the control signals Sc and ST ~ re~er to Figs. 3C and 3A) are both "0".
Under this state, the memory circuit 38 delivers the input sign~l unchanged. so that onl~ one of outputs DF~1, DB2, ---DBN i.e, output DB1 ~rom the decoder 37B is made "1 " b~ the output from the cauQter 40 simiJ~r to the decoder 37A to thereb~ make the transistor T~1 ON.
Thus, from the second channel selecting sign~l generating circuit 36B
there is delivered a volt~ge EB1 which i8 set by the volume VP,1 tor selecting the channel -1, and the ~roltage EE31 is fed to the tuner circuit 33B. Therefore, the second electronic tuner circuit 33~ tunes to the broadcast wa~e on the channel -1 to select and receî~e the same.
~urther, since the control cignals Sc and ST are both "0", the switching circuit 50 is switched to the co~dition shown in Fig. 2 i.e. to be in contact with its fi2ced contact B which is connected to the output side Or the video detecting circuit 35B. Therefore, the ~road-cast wa~e on the channel -1 selected b~r the second tuner circuit 33B
is applied through the VIF amplifier 34B~ video detecting circuît 35B
and the switching circuit 50 to the image reproducing member 1. and accordingly the program of the channel - t is reproduced on the screen of the cathode r~y tube 12 of the member 1.
In order to record the program Or the channel -1 bSr the V'rI~ member 2 while the program of the channel--1 is reproduced on the screen cf ~e cæthode r~y tube 12 in the image repr~ducing men~l~er 1. the recordlng switch is rnade ()N or switch 42 ismade ON or s~,Yitch 42 is made in contact ~vith the fixed contact "R2C" to thereby mal;e the VTR member 2 in record mode. Thus. since the detected output from the video detectin~ circuit 3513 is applied to the VTR member 2. the 1~31763 pro~m of the channel -1 is recorded on the VTR member 2.
~ hen the VTR member 2 is made in record mode. the control signal Sc therefrom hecomes "1". Therefore, the switchinR circuit 50 is changed opposite to that shown in Fig. 2 i.e. made in contact with its ri~ed contact A. so that the signal selected by the tuner circuit 33r~
is fed through the V~F amplifier 34A, video detectin~ circuit 35A and switching circuit 50 to the receiving circuit t 1 ot the image reproducing memiDer 1. Thus, the picture on the screen of the cathode ray tube 12 is chan6ed ~rom that by the signal of the tuner circuit 33B to that by the si~nal of the tuner circuit 33A . At this time, since the tuner circuit 33A is in the condition to select the channel -1 same as the tuner circuit 33B, the program Or the broadcast chanoel reproduced on the screen does not change.
Further, when the control signal SC rrom the VTR member
Field of the Invention The present invention relates generally to a channel programing apparatus, and is directed more particularly to a channel programing apparatus which is simple in construction but can easily program or reserve desired channels.
~escription of the Prior Art In the art there is proposed such a television apparatus, in which a television receiver and a video tape recorder (which ~ will be hereinafter referred to simply as a VTR) are combined and two tuners are provided for the television receiver and VTR
for the latter to record one of the other coincident programs which are not received by the former (which will be hereinafter referred to as a hidden program).
In the art such a channel programing apparatus is proposed in which a timer, which will control the ON and OFF
of a power supply source, is used to reproduce a desired pro-gram on a television receiver after an appointed or reserved time. That is, in this prior art apparatus the timer is ganged with the channel selector device of a tuner and at a time ap-3~ pointed or reserved by the timer the channel selector device ischanged to a channel which is appointed. Thus, ..... . . . . . ..
, .
.~ ~
... , ~
1131'763 the prior art channel ~rograming apparatus is complicated in whole the construction and verv expensive.
O~JECTS AND SUMMARY OF THE INVENTION
Accordingly, it is an object of the present invention to provide a channel programing apparatus free from the defects of the prior art.
It is another object of the invention to provide a channel programing apparatus used in such a television appar-atus which can record a hidden program in which a channel pro-gram can be appointed by using only a timer which will control only the ON and OFF of a power supply source.
It is a further object of the invention to provide a channel programing apparatus which utilizes two tuners provided in a television apparatus to reserve a channel program with simple construction.
According to an aspect of the present invention there is provided a channel programing apparatus which includes first and second tuner circuits, an output of the second tuner circuit being supplied to a video tape recorder (VTR) to be recorded when the VTR is in recording mode, a video signal re-producing device including a cathode ray tube, a timer circuit, a set time of which can be programmable, a switching circuit for switching the outputs of the first and second tuner circuits to be connected to the video signal reproducing device, and a circuit for controlling said switching circuit by the output of the tuner circuit such that the output of the second tuner circuit, which is selectable by a channel selecting device, is supplied to the video signal reproducing device at the set time.
~ore particularly, there is provided:
Channel programing apparatus comprising:
video recording means capable of being set to one of seryeral ~odes, including a recording mode;
~13~63 first and second tuner circuits, providing first and second tuned signals, respectively, said second tuned signal ~e~ng supplied to sa~d video recording means to be ~.
reco-ded when ~aid video recording means is in said recording mode, and including first and second electrically tunable tuning devices, respectively;
channel control means for controlling the outputs of said first and second tuner circuits, whérein said channel con-trol means provides a first and a second tuning control output, and said first and second electrically tunable tuning devices are tuned to a broadcast frequency channel determined by said first and second tuning control outputs, respectively;
timing means having an unset state and being changeable to a set state in which said timing means produces a timed com-mand at a selected time;
tuner switching means for selectively applying one of said ~irst and second tuned signals to said video display means;
means for causing said tuner switching means to switch over so as to apply said second tuned signal to said video display means in response to said timed command; and latching means for causing the second tuning control output to be fixed when said timing means is changed to said set state, whereby manual tuning of said second tuning device is inhibited when said timing means is changed to said set state.
The other objects, features and advantages of the present invention will become apparent from the following description taken in conjunction with the accompanying drawings through which like reference numerals designate the same elements.
-3a-'763 ~RIEF DE~;CRIPTION OF TH~ r~RA\vTNG.S_ - Fig. 1 is a systematic block diagram showing an e~cample of the channe} programing appar~tus according to the present invention;
Fig. 2 is a systematic diagram showing in block another example of the invention; and Figs. 3A to 3C are wavetorm diagrams used for e~cplaining the example of the invention shown in Fig. 2.
DESCRIPTIO~ OF THE PREFERRED E~BODI!~ENTS
The present inventioQ will be hereinbelow described with reference to the attached drawings.
Turnin~ to Fig. 1 which i5 ~ systematic diagram showing an esample ot the channel programing apparatus according to the invention.
1 designates an image reproducing member including a receiving circuit hicb comprises a circuit processing the luminance and carrier ; chrominance signals and a de~lection circuit. and a cathode ray tube 12. 2 desienates a ~tTR member. 3 a channel selecting device, and 4 a timer. respectively.
The channel selecting device 3 include~ an antenna 31. a distributor 32 receiving the broadcast signal trom the antenna 31. ~rst ro and second tuner circuit~ 33A and 33B receiving the output signal ~rom the distributor 32. ~ideo intermediate ~requency (VIF) ampli~iers 34A
and 34B receiving the output 5igna1s from the tuner circuits 33A and 33B .
respectively. and ~ideo detecting cireuit~ 35A and 35B supplied with the output signals ~rom the VTF ampli~iers 34A and 34EI . respectively.
The timer 4 includes a timer circuit 41 and a ~et switch 42. A relay 5 is provided between the receiving circuit 11 and the video detecting circuits 35A, 35B.
With the e~ample ot the invention showQ i~ FiB. 1. usually - a signal selected b~ the ~irst tuner circuit 33A is ~ed through ehe V~l~,0 ampli~ier 34A . video detecting circuit 35A and the br~ke contact of the relay 5 to the imagQ reproducing or television receiYer member 1, while a signal selected by the second tuner circuit 33B is fed through the VIF
ampli~'ier 34B and video detecting circuit 35P~ to the VTR member 2, respectivel~ .
Since tbe first and second tuner circuits 33A and 33B can independently select different chRnoels with each other, wheo ~ program of the brondcast chnnnel is reproduced on the screen of the cathode r~y tube 12. the VTR member 2 can record a program o~ a broadcast channel dirferent trom thaS reproduced on the cathode ray tube 12 or a so-c~lled hidden program.
',~'hen it is desired that the VTR 2 records a certain progrQm at a predetermined time set by the timer 4. the set switch 42 is made in contact with a contact "REC" in Fig. 1. Thus. when the set time ~Yill arri~e under the aboYe state. the timer circuit 41 produces a predetermi~-ed ~oltage Eo~ This voltage Eo is ~pplied to the V'TR member 2 to make the latter in record more and hence the prog~am selected by the tuner circuit 33B is recorded i~ the VTR member 2.
'~hen a program is appoi~ted or reserved. the tuner circuit 33B i~ set to be capable of selecting a broadcast channel on which the pro~ram to be appdnted e~ists. Then. the start time o~ the appointed program is set by the timer 4 and the set switch 42 is made in contact with "RESE~V~:" contact in Fig. 1. I,`nder the above state when toe set time will arri~e. the timer circuit 41 produces the predetermined ~oltage Eo similar to the case toat the program i!s recorded. Thu~, the rel~y 5 is energized by ehe voltage Eo and it~ make contact is closed .
Accordillgly. th~3 output from the video detecting circuit 35B is fed through the make contact o~ the relay 5 to the receivin~ circuit 11. At this time the tuner circuit 33B selected the reser~ed broadcast channel pro--gram. 50 that this reserved program is reprodùced OD the screeo of the cathode ray tube 12.
113~7S3 As described a~ove, the channel programing can be per-formed ~y the present in~ention with simple-construction.
I-n the example of the invention shown in Fig. 1, when the timer switch 42 is not set, it is so formed that it does not contact either one of ~oth the contacts "REC" and "RESERVE" as shown tn Fig. 1. As the tuner circuits 33A and 33B, either of a detent tuner or electronic tuning tuner can be used.
Another example of the invention will be described with reference to Fig. 2 in which the reference numerals same as those of Fig. 1 designate the same elements. In this example, electronic tuners are used as the tuner circuits 33A and 33B, and there are provided a set of channel selecting push-button switches Sl, S2,---SN common to both the tuner circuits 33A
and 33B. Further, in this example such a circuit is provided which will avoid any mis-recording in the VTR member 2.
In the example of the invention shown in Fig. 2, 36A
and 36B designate first and second channel selecting signal generating circuits which supply channel selecting voltages cor-responding to channels to be selected to the first and second tuner circuits 33A and 33B, respectively, and which have N's number o~ preset vol~mes ~ , VA2, -- VA and VB VB --VB and N'S
number of transistors TAl, TA2, --- TAN and TBl, TB2, -~TBN~ respectively.
Further, a memory circuit 38 is provided in connection with the second channel selecting signal generating circuit 38, an~ also there are provided an oscillator 39 and a counter 40.
In the example of Fig. 2, the detected output signals from the video detecting circuits 35A and 35B are selectively applied through a switching circuit 50 to the image reproducing member 1, while the detected output signal from the video de-tecting circuit 35B is always applied to the VTR member 2.This VTR member 2 produces a control signal Sc which ~ill rises up to "1" when the VTF. member 2 is made in the record mode. The tiner circuit 41 o~ the timer 4 produces a control signal ST which will rises up "1 " when the set switch 42 is made in contact with either one o~ the contacts "I~EC ' and "RE~I~R~E".
The control signal ~c from the VTR member 2 and the control signal ST from the timer circuit 41 are ?ed through an O~ cir~uit 51 to the memory circuit 38. This control signal ~;C is also applied through n OR circuit 52 to the switching circuit 50 RS its s~itching signal. while the control cignal ~;T is ~ed to the switching circuit 50 through a st~itch~g circuit 53, which i~ normally closed or ON. and the 07~ circuit 52 ~lso as the switching signal.
With the apparatus Or the invention constructed as above, ~when one of the cbannel selecting push button switches S1 ~ S2, --SN, tor e~ample, switch S1 ~or selecting the chalmal -1 is pushed do~n, a positive DC voltage obtained at a terminal 54 is applied through the closed switch 51 to the oscillator 39. Thus, the oscillator 39 starts its oscil-lation and produces a cloclc pulse. This clock pulse is ~ed to the counter 40 and the l~tter counts the cloclc pulse in advance. The output signal there~rom is applied to a decoder 37A . When one or the outputs DAl .
DA 2 ~ --DA N from the decoder 37A . for example . only output DA 1 in this case becomes "I". the trans~stor TAl is made ON thereby. \Yhen the transistor TA1 becomes ON, the ~oltage at the terminal 54 is by--passed therethrough and hence the o~cillator 39 stopes its o~cillation tt~ '~eep the ~ansistor T~1 in ON-state. ~ccordingly. even iî there-~îter the hand is apart rrom the bush-button switcb S and the ~wtch ~is~
!~1 returns to its OFF-state, the above state is kept . ~Jnde~sSatet the rirst channel selecting signal gener~dting circuit 36A produces such a channel selectlQg signal or voltage ~hich is set by the volume VAl for selecting the channel -1. This channel selectin~ voltage rrom the volume V-~1 is ~pplied to the variable capacitance diode provided in the 1~3~763 local oscillator and 50 on (not shown) of the tuner circult 33A . Thus, the broadcast wa~e of the cha~mel-1 is selected and then received.
At this time, if the VTR member 2 is not in the r~cord mode and the t~ner 4 is not set, the control signals Sc and ST ~ re~er to Figs. 3C and 3A) are both "0".
Under this state, the memory circuit 38 delivers the input sign~l unchanged. so that onl~ one of outputs DF~1, DB2, ---DBN i.e, output DB1 ~rom the decoder 37B is made "1 " b~ the output from the cauQter 40 simiJ~r to the decoder 37A to thereb~ make the transistor T~1 ON.
Thus, from the second channel selecting sign~l generating circuit 36B
there is delivered a volt~ge EB1 which i8 set by the volume VP,1 tor selecting the channel -1, and the ~roltage EE31 is fed to the tuner circuit 33B. Therefore, the second electronic tuner circuit 33~ tunes to the broadcast wa~e on the channel -1 to select and receî~e the same.
~urther, since the control cignals Sc and ST are both "0", the switching circuit 50 is switched to the co~dition shown in Fig. 2 i.e. to be in contact with its fi2ced contact B which is connected to the output side Or the video detecting circuit 35B. Therefore, the ~road-cast wa~e on the channel -1 selected b~r the second tuner circuit 33B
is applied through the VIF amplifier 34B~ video detecting circuît 35B
and the switching circuit 50 to the image reproducing member 1. and accordingly the program of the channel - t is reproduced on the screen of the cathode r~y tube 12 of the member 1.
In order to record the program Or the channel -1 bSr the V'rI~ member 2 while the program of the channel--1 is reproduced on the screen cf ~e cæthode r~y tube 12 in the image repr~ducing men~l~er 1. the recordlng switch is rnade ()N or switch 42 ismade ON or s~,Yitch 42 is made in contact ~vith the fixed contact "R2C" to thereby mal;e the VTR member 2 in record mode. Thus. since the detected output from the video detectin~ circuit 3513 is applied to the VTR member 2. the 1~31763 pro~m of the channel -1 is recorded on the VTR member 2.
~ hen the VTR member 2 is made in record mode. the control signal Sc therefrom hecomes "1". Therefore, the switchinR circuit 50 is changed opposite to that shown in Fig. 2 i.e. made in contact with its ri~ed contact A. so that the signal selected by the tuner circuit 33r~
is fed through the V~F amplifier 34A, video detectin~ circuit 35A and switching circuit 50 to the receiving circuit t 1 ot the image reproducing memiDer 1. Thus, the picture on the screen of the cathode ray tube 12 is chan6ed ~rom that by the signal of the tuner circuit 33B to that by the si~nal of the tuner circuit 33A . At this time, since the tuner circuit 33A is in the condition to select the channel -1 same as the tuner circuit 33B, the program Or the broadcast chanoel reproduced on the screen does not change.
Further, when the control signal SC rrom the VTR member
2 becomes "1 " . in the mcmory circuit 38 there is memori2;ed the input signal at that time i.e. channel selecting op~ration signal to select the channel -1 and this state i~ locked during the interval that the VTR mem--ber 2 is in the record mode.
Vnder ~uch a state that the program of the broadc?.st channel --1 recorded in the VTR member 2. i~. ror esample. the push button switch S4 for selectln~ the channel - 4 is pushed down. similar to the case that the switch S1 is pushed down. the counter 40 counts up until the output DA4 ~rom the decoder 37A arrie~es at "1 " and hence the oscil-lntor 39 stops its oscillation. Thus. the tra~sistor TAl becomes OFF
while the transistor TA4 becomes ON~ Therefore. the channel select-ing signal ~enerating circuit 36A produces a voltage which is preset by the ~rolume VA4 to select the channel - 4. ~his ~70ltage from the cir-Cllit 36,~ ;s red tD the tuner circuit 33A . so th~t the broadcast wave on the chAnnel - 4 is selected Qn~l rsceived by the tuner circuLt 33~.
Accoràingly. the selected brDadcast wave on the cha~xnel - 4 i~ red _ g _ 1~31~6~
throu~h the VIF amplifier 34A, video detecting circuit 35A
and the switching circuit 5Q to the receiving circuit 11, so that the pro~ram on the channel - 4 is reproduced on the screen of the cathode ray tube 12.
As described previously, during the record mode the memory circuit 38 is locked and the output therefrom is the channel selecting operation signal to select the channel - 1 when the record switch is made ON, so that the decoder 37B
holds such a state that only its output DBl is "1". Thus, the output signal delivered from the second channel selecting signal generating circuit 36B is unchanged and hence the tuner circuit 33~ keeps such a state to receive the broadcast wave on the channel - 1. Accordingly, the VTR member 2 continues to record the broadcast wave on the channel - 1. That is, a hidden program can be recorded by the VTR member 2.
In this case, since the signal, which is recorded by the VTR member 2, is the signal from the tuner circuit 33B, which is reproduced on the screen of the cathode ray tube 12 immediately before the record mode, the signal from the tuner circuit 33B, whose receiving state is known, is recorded.
Therefore, such a mis-recording that when a recorded signal is reproduced, a picture is bad can be avoided by the present in-vention.
Next, such a case that a program reservation is carried out by using the timer 4 will be described.
Firstl~, a reservation time tl (refer to Fig. 3) is set b~ the timer 4 and a push-button corresponding to the broadcast channel to be reserved is pushed down. Then, at a time to (refer to Fig. 3) before the reserve time tl, the timer~ switch 42 is made in contact with the contact "RESERVE"
in Fig. 2 to set the timer 4. Then, from the timer 4 there is delivered the control signal ST which rises up "1" at the time to as shown in Fig. 3A. Since this control signal ST
.
1~3~7b;3 is fed to the memory circuit 38. this memory circuit 38 memorizes thc channel selecting operation si~nal at that time and is locked Also.
since the control si~nal ST is ~ed to the switchlng circuit 50. its mo~bIe contact piece is switched in contact with the fi~ed contact A .
Accordingly, during the time that the timer 4 is set, the si~nnl selected by the tuner circuit 33~ is fed to the isna~e reproclucing mem'~er 1. Thus. ~hen a desired one of the push button switches 51~ 32~ -S~7 i!E; pushed do~n. the corresponding desired program can be reproduced by the ima~e reproducing member 1.
'.Yhen the set reser~e time t1 arri~es. the voltage Eo (refer to Fig. 3B) is delivered ~rom the timer circuit 41 and is applied as the power supply Yolta~e to the irna~e reproducing member 1 and to the channel select-n6 device mem~er 3 (this p.-th bein~ not shown in Fi~. 2), and ~lso to the s~itching circl3it 53. Thus, this switching circuit 53 is mnde OFF.
Since at this time the control siOEnnl Sc tr~m the VTR member 2 is '0", the switching circuit 50 is switched such that its mo~able piece Is in contact ~vith the fi~ced contact B. ~t this time, the second channel selecting signal gene~ting circuit 36r', produces the ch~nnel selectin~
roltage to select the channel reser~ed by tbe memory circuit 38. This channel selecting voltage is applied to the tuner clrcuit 33~ and hence the reserred chnnnel is selected thereby. Accordingly, the pro~Lm of the selected channel is reproduced on the screen 0r the cathode ray tuhe 12 .
Thus, the reser~ation Or the program cnn be achieved.
Vhen the r~servation o~ recording e progr~m is achieved by the timer 4- the timer circuit 41 is S5 switched that its ~ovable piece is made in contact with the fi~ed contact "REC" simiLa:r to the ahove case.
Then, the switchin~ circuit 50 is so slqitchcd hy the contr~7l si~nal S~ that its mo~able piece is in contzct ~ the fi~ed contact A . .~ccordingly.
a desired broadc~t program can ke seen on the screen Or the cathode ray tube 12 eYen ~hen the recordin~ reservation is achieYed by the timer 4.
1131 ~i3 In this case~ altllough the st;itchin~ circuit 50 is remained at such ~ state that its mo~Jable piece is in contact ~vith the fi~ced contact A uhen the reverse time tl ~rrives. the voltage Eo ~rl)m the timer circuit 41 is applied to the YT~ mem'~er 2 to make the latter in record mode.
\A/hen the timer 41 is released from its set state and the YTR
member 2 is released from its record mode, the switchin~ circuit 50 re turns to its ~riginal state i.e. such 2 state that its movable piece is in contact with the fised contact B .
As described abo~e, accordin~ to the pre~ent inventinn the program ~n be reserved by the apparatus of simple construction in ~hich ~re used.) t~Jo tuner circuits which are originally provided in the television ap~;~
Further, in the invention such a simple construction ot a timer, which switches the po~er supply source ~N and 0~, can be used as the timer, so that the apparatus can he made inexpensive.
1~ It ~,ill be apparent that mnny modi~ications and variations could be efîected by one skilled in the art without departing rrom the spirits or scope Or the novel concepts of the present invention, so that the spirits or scope of the invention should be determined by the appended claims.
--~2 --
Vnder ~uch a state that the program of the broadc?.st channel --1 recorded in the VTR member 2. i~. ror esample. the push button switch S4 for selectln~ the channel - 4 is pushed down. similar to the case that the switch S1 is pushed down. the counter 40 counts up until the output DA4 ~rom the decoder 37A arrie~es at "1 " and hence the oscil-lntor 39 stops its oscillation. Thus. the tra~sistor TAl becomes OFF
while the transistor TA4 becomes ON~ Therefore. the channel select-ing signal ~enerating circuit 36A produces a voltage which is preset by the ~rolume VA4 to select the channel - 4. ~his ~70ltage from the cir-Cllit 36,~ ;s red tD the tuner circuit 33A . so th~t the broadcast wave on the chAnnel - 4 is selected Qn~l rsceived by the tuner circuLt 33~.
Accoràingly. the selected brDadcast wave on the cha~xnel - 4 i~ red _ g _ 1~31~6~
throu~h the VIF amplifier 34A, video detecting circuit 35A
and the switching circuit 5Q to the receiving circuit 11, so that the pro~ram on the channel - 4 is reproduced on the screen of the cathode ray tube 12.
As described previously, during the record mode the memory circuit 38 is locked and the output therefrom is the channel selecting operation signal to select the channel - 1 when the record switch is made ON, so that the decoder 37B
holds such a state that only its output DBl is "1". Thus, the output signal delivered from the second channel selecting signal generating circuit 36B is unchanged and hence the tuner circuit 33~ keeps such a state to receive the broadcast wave on the channel - 1. Accordingly, the VTR member 2 continues to record the broadcast wave on the channel - 1. That is, a hidden program can be recorded by the VTR member 2.
In this case, since the signal, which is recorded by the VTR member 2, is the signal from the tuner circuit 33B, which is reproduced on the screen of the cathode ray tube 12 immediately before the record mode, the signal from the tuner circuit 33B, whose receiving state is known, is recorded.
Therefore, such a mis-recording that when a recorded signal is reproduced, a picture is bad can be avoided by the present in-vention.
Next, such a case that a program reservation is carried out by using the timer 4 will be described.
Firstl~, a reservation time tl (refer to Fig. 3) is set b~ the timer 4 and a push-button corresponding to the broadcast channel to be reserved is pushed down. Then, at a time to (refer to Fig. 3) before the reserve time tl, the timer~ switch 42 is made in contact with the contact "RESERVE"
in Fig. 2 to set the timer 4. Then, from the timer 4 there is delivered the control signal ST which rises up "1" at the time to as shown in Fig. 3A. Since this control signal ST
.
1~3~7b;3 is fed to the memory circuit 38. this memory circuit 38 memorizes thc channel selecting operation si~nal at that time and is locked Also.
since the control si~nal ST is ~ed to the switchlng circuit 50. its mo~bIe contact piece is switched in contact with the fi~ed contact A .
Accordingly, during the time that the timer 4 is set, the si~nnl selected by the tuner circuit 33~ is fed to the isna~e reproclucing mem'~er 1. Thus. ~hen a desired one of the push button switches 51~ 32~ -S~7 i!E; pushed do~n. the corresponding desired program can be reproduced by the ima~e reproducing member 1.
'.Yhen the set reser~e time t1 arri~es. the voltage Eo (refer to Fig. 3B) is delivered ~rom the timer circuit 41 and is applied as the power supply Yolta~e to the irna~e reproducing member 1 and to the channel select-n6 device mem~er 3 (this p.-th bein~ not shown in Fi~. 2), and ~lso to the s~itching circl3it 53. Thus, this switching circuit 53 is mnde OFF.
Since at this time the control siOEnnl Sc tr~m the VTR member 2 is '0", the switching circuit 50 is switched such that its mo~able piece Is in contact ~vith the fi~ced contact B. ~t this time, the second channel selecting signal gene~ting circuit 36r', produces the ch~nnel selectin~
roltage to select the channel reser~ed by tbe memory circuit 38. This channel selecting voltage is applied to the tuner clrcuit 33~ and hence the reserred chnnnel is selected thereby. Accordingly, the pro~Lm of the selected channel is reproduced on the screen 0r the cathode ray tuhe 12 .
Thus, the reser~ation Or the program cnn be achieved.
Vhen the r~servation o~ recording e progr~m is achieved by the timer 4- the timer circuit 41 is S5 switched that its ~ovable piece is made in contact with the fi~ed contact "REC" simiLa:r to the ahove case.
Then, the switchin~ circuit 50 is so slqitchcd hy the contr~7l si~nal S~ that its mo~able piece is in contzct ~ the fi~ed contact A . .~ccordingly.
a desired broadc~t program can ke seen on the screen Or the cathode ray tube 12 eYen ~hen the recordin~ reservation is achieYed by the timer 4.
1131 ~i3 In this case~ altllough the st;itchin~ circuit 50 is remained at such ~ state that its mo~Jable piece is in contact ~vith the fi~ced contact A uhen the reverse time tl ~rrives. the voltage Eo ~rl)m the timer circuit 41 is applied to the YT~ mem'~er 2 to make the latter in record mode.
\A/hen the timer 41 is released from its set state and the YTR
member 2 is released from its record mode, the switchin~ circuit 50 re turns to its ~riginal state i.e. such 2 state that its movable piece is in contact with the fised contact B .
As described abo~e, accordin~ to the pre~ent inventinn the program ~n be reserved by the apparatus of simple construction in ~hich ~re used.) t~Jo tuner circuits which are originally provided in the television ap~;~
Further, in the invention such a simple construction ot a timer, which switches the po~er supply source ~N and 0~, can be used as the timer, so that the apparatus can he made inexpensive.
1~ It ~,ill be apparent that mnny modi~ications and variations could be efîected by one skilled in the art without departing rrom the spirits or scope Or the novel concepts of the present invention, so that the spirits or scope of the invention should be determined by the appended claims.
--~2 --
Claims (2)
PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Channel programing apparatus comprising:
video recording means capable of being set to one of several modes, including a recording mode;
first and second tuner circuits, providing first and second tuned signals, respectively, said second tuned signal being supplied to said video recording means to be recorded when said video recording means is in said recording mode, and includ-ing first and second electrically tunable tuning devices, respec-tively;
channel control means for controlling the outputs of said first and second tuner circuits, wherein said channel con-trol means provides a first and a second tuning control output, and said first and second electrically tunable tuning devices are tuned to a broadcast frequency channel determined by said first and second tuning control outputs, respectively;
timing means having an unset state and being changeable to a set state in which said timing means produces a timed com-mand at a selected time;
tuner switching means for selectively applying one of said first and second tuned signals to "a" video display means;
means for causing said tuner switching means to switch over so as to apply said second tuned signal to said video display means in response to said timed command; and latching means for causing the second tuning control output to be fixed when said timing means is changed to said set state, whereby manual tuning of said second tuning device is inhibited when said timing means is changed to said set state.
video recording means capable of being set to one of several modes, including a recording mode;
first and second tuner circuits, providing first and second tuned signals, respectively, said second tuned signal being supplied to said video recording means to be recorded when said video recording means is in said recording mode, and includ-ing first and second electrically tunable tuning devices, respec-tively;
channel control means for controlling the outputs of said first and second tuner circuits, wherein said channel con-trol means provides a first and a second tuning control output, and said first and second electrically tunable tuning devices are tuned to a broadcast frequency channel determined by said first and second tuning control outputs, respectively;
timing means having an unset state and being changeable to a set state in which said timing means produces a timed com-mand at a selected time;
tuner switching means for selectively applying one of said first and second tuned signals to "a" video display means;
means for causing said tuner switching means to switch over so as to apply said second tuned signal to said video display means in response to said timed command; and latching means for causing the second tuning control output to be fixed when said timing means is changed to said set state, whereby manual tuning of said second tuning device is inhibited when said timing means is changed to said set state.
2. Channel programing apparatus according to Claim 1, wherein said timing means includes mode switching means for electively establishing a record command mode and a reserve command mode, said latching means being operative only when said mode switching means has established said reserve command mode, and comprising means for causing said video recording means to be set to said recording mode thereof in response to said timed command when said mode switching means has established said record command mode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977179139U JPS602711Y2 (en) | 1977-12-27 | 1977-12-27 | television equipment |
| JP179139/77 | 1977-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1131763A true CA1131763A (en) | 1982-09-14 |
Family
ID=16060652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA318,444A Expired CA1131763A (en) | 1977-12-27 | 1978-12-21 | Channel programing apparatus |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4272784A (en) |
| JP (1) | JPS602711Y2 (en) |
| CA (1) | CA1131763A (en) |
| DE (1) | DE2856377A1 (en) |
| FR (1) | FR2413835B1 (en) |
| GB (1) | GB2012508B (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3036552C2 (en) * | 1980-09-27 | 1985-04-25 | Blaupunkt-Werke Gmbh, 3200 Hildesheim | Television reception system |
| US4965825A (en) | 1981-11-03 | 1990-10-23 | The Personalized Mass Media Corporation | Signal processing apparatus and methods |
| USRE47642E1 (en) | 1981-11-03 | 2019-10-08 | Personalized Media Communications LLC | Signal processing apparatus and methods |
| US7831204B1 (en) | 1981-11-03 | 2010-11-09 | Personalized Media Communications, Llc | Signal processing apparatus and methods |
| CA1203018A (en) * | 1982-02-12 | 1986-04-08 | Daisuke Kozakai | Remote control system |
| JP2545851B2 (en) * | 1987-04-16 | 1996-10-23 | ソニー株式会社 | TV receiver with integrated VTR |
| US5187589A (en) * | 1988-07-28 | 1993-02-16 | Pioneer Electronic Corporation | Multiprogram video tape recording and reproducing device |
| CA2005070C (en) * | 1988-12-23 | 1999-04-27 | Henry C. Yuen | Apparatus and method for using encoded video recorder/player timer preprogramming information |
| US5974222A (en) * | 1988-12-23 | 1999-10-26 | Gemstar Development Corporation | Apparatus and method using compressed codes for scheduling broadcast information recording |
| US5193009A (en) * | 1989-01-20 | 1993-03-09 | Goldstar Co., Ltd. | Signal switching method of a TV-VCR combination having two tuners |
| KR920004758Y1 (en) * | 1989-06-28 | 1992-07-18 | 삼성전자 주식회사 | Mixed simul casting circuit |
| KR970006174B1 (en) * | 1989-08-28 | 1997-04-24 | 엘지전자 주식회사 | Reservation recording method for vcr of no tuner |
| JPH05161083A (en) * | 1991-12-06 | 1993-06-25 | Sony Corp | Television receiver |
| US5523851A (en) * | 1993-05-26 | 1996-06-04 | U.S. Philips Corporation | Video recorder having time window generating circuitry |
| TW456148B (en) | 1998-06-16 | 2001-09-21 | United Video Properties Inc | Interactive television program guide with simultaneous watch and record capabilities |
| CN1867068A (en) | 1998-07-14 | 2006-11-22 | 联合视频制品公司 | Client-server based interactive television program guide system with remote server recording |
| KR100317389B1 (en) * | 2000-01-22 | 2001-12-22 | 구자홍 | Channel setting method for the on timer of digital broadcasting tv receiver |
| US6897904B2 (en) * | 2002-01-04 | 2005-05-24 | Microsoft Corporation | Method and apparatus for selecting among multiple tuners |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2675467A (en) * | 1949-03-09 | 1954-04-13 | Phantom Dial Company | Time controlled radio frequency preselection apparatus |
| CA1025552A (en) * | 1971-07-16 | 1978-01-31 | Kosaku Uchida | System for coupling magnetic recording and reproducing machine with television receiver |
| US3800230A (en) * | 1972-08-14 | 1974-03-26 | Marks Brothers Prod Inc | Digital programmer for receivers |
| GB1477522A (en) * | 1973-10-12 | 1977-06-22 | Sony Corp | Radio receivers |
| JPS5649035B2 (en) * | 1974-09-30 | 1981-11-19 | ||
| CA1124901A (en) * | 1977-12-21 | 1982-06-01 | Masaru Sato | Channel selecting apparatus for use with signal receiver and signal recorder |
-
1977
- 1977-12-27 JP JP1977179139U patent/JPS602711Y2/en not_active Expired
-
1978
- 1978-12-21 CA CA318,444A patent/CA1131763A/en not_active Expired
- 1978-12-26 US US05/973,536 patent/US4272784A/en not_active Expired - Lifetime
- 1978-12-27 DE DE19782856377 patent/DE2856377A1/en active Granted
- 1978-12-27 FR FR7836565A patent/FR2413835B1/en not_active Expired
- 1978-12-27 GB GB7850011A patent/GB2012508B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2856377A1 (en) | 1979-07-05 |
| GB2012508B (en) | 1982-05-26 |
| GB2012508A (en) | 1979-07-25 |
| FR2413835A1 (en) | 1979-07-27 |
| JPS602711Y2 (en) | 1985-01-25 |
| JPS54101927U (en) | 1979-07-18 |
| DE2856377C2 (en) | 1988-09-08 |
| US4272784A (en) | 1981-06-09 |
| FR2413835B1 (en) | 1985-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1131763A (en) | Channel programing apparatus | |
| EP0788711B1 (en) | Multipicture television receiver | |
| CN1051894C (en) | Automatic channel sampling picture-in-picture circuitry | |
| JPS54105920A (en) | Picture display device | |
| US5031044A (en) | Inset picture centering in a pix-in-pix system | |
| GB1533371A (en) | Television receivers | |
| JPH11220667A (en) | Television receiver | |
| GB1533372A (en) | Television receivers | |
| JP2985933B2 (en) | Tuning device | |
| JPS60146587A (en) | Portable television | |
| JPS63290079A (en) | Two-screen television receiver | |
| KR830002526B1 (en) | Control device of TV receiver | |
| SU1429338A1 (en) | Electronic television program selector | |
| JPS612478A (en) | Multi-screen display television receiver | |
| JPS6017270B2 (en) | Recording and playback device | |
| KR0158979B1 (en) | Common use converter | |
| KR850001417B1 (en) | Multi channel display device | |
| JPS6161577A (en) | Television receiver | |
| KR0131980B1 (en) | Method and apparatus for displaying double pip | |
| KR0159592B1 (en) | The variable control apparatus for color level of a television | |
| JPS606587B2 (en) | magnetic recording and playback device | |
| KR0154002B1 (en) | Method for automatically storing channels in vcr | |
| KR930011135B1 (en) | Overlapping apparatus of digital tv | |
| JPH0723825Y2 (en) | Calendar display | |
| JPS6041377A (en) | Coupling device of external signal with television receiver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry | ||
| MKEX | Expiry |
Effective date: 19990914 |