DE3783789D1 - Selektiv in voll-duplex- und halb-duplex-mode arbeitendes radiotelefonsystem mit mehreren eingaengen. - Google Patents

Selektiv in voll-duplex- und halb-duplex-mode arbeitendes radiotelefonsystem mit mehreren eingaengen.

Info

Publication number
DE3783789D1
DE3783789D1 DE8787104396T DE3783789T DE3783789D1 DE 3783789 D1 DE3783789 D1 DE 3783789D1 DE 8787104396 T DE8787104396 T DE 8787104396T DE 3783789 T DE3783789 T DE 3783789T DE 3783789 D1 DE3783789 D1 DE 3783789D1
Authority
DE
Germany
Prior art keywords
duplex
selective
full
telephone system
radio telephone
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 - Fee Related
Application number
DE8787104396T
Other languages
English (en)
Other versions
DE3783789T2 (de
Inventor
Hiroyasu Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Publication of DE3783789D1 publication Critical patent/DE3783789D1/de
Application granted granted Critical
Publication of DE3783789T2 publication Critical patent/DE3783789T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/14—WLL [Wireless Local Loop]; RLL [Radio Local Loop]
DE8787104396T 1986-03-26 1987-03-25 Selektiv in voll-duplex- und halb-duplex-mode arbeitendes radiotelefonsystem mit mehreren eingaengen. Expired - Fee Related DE3783789T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61069279A JPS62225096A (ja) 1986-03-26 1986-03-26 無線電話方式

Publications (2)

Publication Number Publication Date
DE3783789D1 true DE3783789D1 (de) 1993-03-11
DE3783789T2 DE3783789T2 (de) 1993-05-19

Family

ID=13398035

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787104396T Expired - Fee Related DE3783789T2 (de) 1986-03-26 1987-03-25 Selektiv in voll-duplex- und halb-duplex-mode arbeitendes radiotelefonsystem mit mehreren eingaengen.

Country Status (6)

Country Link
US (1) US4712229A (de)
EP (1) EP0239093B1 (de)
JP (1) JPS62225096A (de)
AU (1) AU582726B2 (de)
CA (1) CA1267961C (de)
DE (1) DE3783789T2 (de)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5408466A (en) * 1984-12-06 1995-04-18 Motorola, Inc. Duplex interconnect dispatch trunked radio
CA1265274A (en) * 1986-04-26 1990-01-30 Takeo Yorita Radio key telephone system having a common signaling channel
JPH07123314B2 (ja) * 1986-05-09 1995-12-25 日本電気株式会社 無線通信装置
US4835731A (en) * 1987-08-14 1989-05-30 General Electric Company Processor-to-processor communications protocol for a public service trunking system
WO1988009969A1 (en) * 1987-06-03 1988-12-15 General Electric Company Process-to-processor communications protocol for a public service trunking system
US5206863A (en) * 1987-08-14 1993-04-27 General Electric Company Processor-to-processor communications protocol for a public service trunking system
US5128930A (en) * 1987-08-14 1992-07-07 General Electric Company Processor-to-processor communications protocol for a public service trunking system
US5210785A (en) * 1988-02-29 1993-05-11 Canon Kabushiki Kaisha Wireless communication system
JPH0618343B2 (ja) * 1988-06-21 1994-03-09 富士通株式会社 Ｍｃａ無線データ通信方法および装置
US5159701A (en) * 1989-03-31 1992-10-27 E. F. Johnson Company Method and apparatus for a distributive wide area network for a land mobile transmission trunked communication system
US5235631A (en) * 1989-07-31 1993-08-10 Motorola, Inc. Trunked talk-group assignment method
SE500289C2 (sv) * 1989-08-11 1994-05-30 Ericsson Telefon Ab L M Metod att övervaka telefonabonnemang i ett mobiltelefonsystem
US6389010B1 (en) * 1995-10-05 2002-05-14 Intermec Ip Corp. Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
WO1992000634A1 (en) * 1990-06-22 1992-01-09 Motorola, Inc. Full duplex/half duplex power radio
FR2667747A1 (fr) * 1990-10-09 1992-04-10 Trt Telecom Radio Electr Systeme de transmission comportant une pluralite de dispositifs d'abonne.
JP2710699B2 (ja) * 1991-02-06 1998-02-10 三菱電機株式会社 デュアルモード自動車電話端末装置
JPH04334154A (ja) * 1991-05-10 1992-11-20 Fujitsu Ltd チャネル選択方式
BR9102145A (pt) * 1991-05-20 1993-01-05 Elebra Telecon Ltda Sistema de telefonica celular com celula ampliada
JPH0528148U (ja) * 1991-09-24 1993-04-09 三菱電機株式会社 無線電話装置
US5619551A (en) * 1991-09-26 1997-04-08 Nec Corporation Cellular telephone exchange system which allows setting of connections between the base station transmitter-receivers and base station controllers base on movement of the mobile station
US5265264A (en) * 1991-12-23 1993-11-23 Motorola, Inc. Convertible half-to-full duplex radio operation selected by battery
US5377184A (en) * 1992-03-02 1994-12-27 International Business Machines Corporation Method of controlling TWA link in a communications adapter by monitoring buffer fill levels
JP3149518B2 (ja) * 1992-04-17 2001-03-26 住友電気工業株式会社 車載用電子制御装置と試験装置の通信機構
GB2268027B (en) * 1992-06-20 1996-08-21 Motorola Inc Trunking radio system with frequency diversity
US5402470A (en) * 1993-02-26 1995-03-28 Astronet Corporation System and method for connection of cellular base stations to a mobile switching center using dial up telephone circuits
US5586150A (en) * 1993-11-24 1996-12-17 Rajupandaram K. Balasubramaniam Method and apparatus for symbol synchronization in multi-level digital FM radio
FR2726958A1 (fr) * 1994-11-15 1996-05-15 Trt Telecom Radio Electr Systeme de radio-communication avec station radio deportee
DE69626294T2 (de) * 1995-10-17 2003-11-13 Ericsson Telefon Ab L M Verfahren zur verbindungsübergabe und netzwerkwechsel in einer funkübertragungsumgebung
US6529486B1 (en) 1997-04-11 2003-03-04 Transcrypt International/E.F. Johnson Company Trunked radio repeater communication system
US6684080B1 (en) 1997-05-28 2004-01-27 Transcrypt International/E. F. Johnson Company Trunked radio repeater communication system including home channel aliasing and call grouping
US6374115B1 (en) 1997-05-28 2002-04-16 Transcrypt International/E.F. Johnson Method and apparatus for trunked radio repeater communications with backwards compatibility
US7415282B2 (en) * 2004-07-31 2008-08-19 Nextel Communications Inc. Wireless communication system providing seamless switching between full-duplex and half-duplex modes
CN101151812B (zh) * 2005-04-07 2014-11-19 诺基亚公司 具有可变双工性能的终端
US8149743B1 (en) * 2006-07-12 2012-04-03 Nextel Communications Inc. System and method for seamlessly switching a full-duplex session to a half-duplex session
JP4274240B2 (ja) * 2006-12-28 2009-06-03 ブラザー工業株式会社 通信装置
US8774109B2 (en) 2010-06-17 2014-07-08 Kathrein-Werke Kg Mobile communications network with distributed processing resources
US8649354B2 (en) * 2010-06-17 2014-02-11 Kathrein-Werke Kg Handover in mobile communications networks
US10469506B2 (en) * 2012-07-19 2019-11-05 Tecore, Inc. Systems and methods for communication control in a restricted environment

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037158A (en) * 1974-10-07 1977-07-19 Motorola, Inc. Two-way FM radio system operating on a single channel and providing simulated duplex operation
US4166978A (en) * 1976-09-07 1979-09-04 Maynard E. White Two-way voice controlled communication system
NL7806618A (nl) * 1978-06-20 1979-12-27 Philips Nv Satellietcommunicatiestelsel voor spraak en telegrafie.
US4360927A (en) * 1979-03-12 1982-11-23 General Electric Company Repeater trunking system
US4288869A (en) * 1980-01-23 1981-09-08 International Business Machines Corp. Half-duplex/simplex digital signal converter
ZA813229B (en) * 1980-05-29 1983-01-26 Philips Nv Frequency division communication system wherein conventional transmitter-transceiver can be used as or repeater or local base station
FR2491701A1 (fr) * 1980-10-08 1982-04-09 Pays Gerard Procede et dispositif pour minimiser la telediaphonie entre des lignes de transmission numerique
JPS57184342A (en) * 1981-05-08 1982-11-13 Nec Corp Low electric power type multifrequency radio subscriber line concentrating system
JPS60116237A (ja) * 1983-11-29 1985-06-22 Fujitsu Ltd 加入者線自動応固装置
US4549293A (en) * 1983-12-29 1985-10-22 The United States Of America As Represented By The Secretary Of The Army Time division multiple access communications system
US4635285A (en) * 1984-04-12 1987-01-06 Motorola, Inc. Communication system with voice priority for remote stations
US4599719A (en) * 1984-06-18 1986-07-08 At&T Information Systems Inc. Full duplex data set with half-duplex emulation
US4672601A (en) * 1984-12-06 1987-06-09 Motorola, Inc. Duplex interconnect/dispatch trunked radio system
JPS61274528A (ja) * 1985-05-30 1986-12-04 Nec Corp コ−ドレス電話システム

Also Published As

Publication number Publication date
AU7059987A (en) 1987-10-01
EP0239093A2 (de) 1987-09-30
EP0239093A3 (en) 1989-04-26
CA1267961A (en) 1990-04-17
US4712229A (en) 1987-12-08
AU582726B2 (en) 1989-04-06
CA1267961C (en) 1990-04-17
EP0239093B1 (de) 1993-01-27
DE3783789T2 (de) 1993-05-19
JPS62225096A (ja) 1987-10-03

Similar Documents

Publication Publication Date Title
DE3783789D1 (de) Selektiv in voll-duplex- und halb-duplex-mode arbeitendes radiotelefonsystem mit mehreren eingaengen.
DE68923280T2 (de) Funkübertragunssystem im zeitbereich.
DE3787593T2 (de) Tragbares Funktelefon mit Energiespareinrichtung.
DE68924144T2 (de) Kommunikation in Dualbetriebsart.
NL191869C (nl) Het initiëren van een communicatiekanaal tussen een abonneestation en een basisstation in een abonneecommunicatiestelsel.
DE3689540D1 (de) Kommunikationssysteme und Terminals dafür.
DE59410394D1 (de) Mobilfunksystem mit Vollduplex- und Halbduplexverkehr
NO175028C (no) Kommunikasjonssystem og stasjoner for bruk i sådant system
DE3688819D1 (de) Selektiver personenrufempfaenger mit nachrichtenanzeige.
DE3689472T2 (de) Wellenleiter-Kommunikations- und Sensorsysteme.
DE3688590D1 (de) Selektiver personenrufempfaenger mit nachrichtenanzeige.
EP0228078A3 (en) Limited multicast communication method and communication network system realizing the method
DE68924821T2 (de) Selektiv-Rufsystem und Rufempfänger dafür.
EP0290455A4 (de) Haloarylnitril abbauendes gen, dessen verwendung, sowie zellen, die dieses enthalten.
DE3783074T2 (de) Zeit-multiplex-kommunikationssystem mit gemeinsamem lokalem uebertragungsweg und lokaler zeitschlitz fuer vermittlungsinterne rufe.
DE3886149D1 (de) Rundfunkkommunikationssystem mit Mehrfachzugriff im Zeitmultiplex.
NO854752L (no) Ekstruderings-, transport- og kuttesystem.
DE69023730D1 (de) Kommunikationsvorrichtung und -verfahren.
NL191637C (nl) In twee richtingen werkzame drukreduceerinrichting.
FI880876A0 (fi) Foerbaettringar i anordningar foer att injektera aemnen in i vaetskor.
MX161903A (es) Mejoras en sistema de comunicacion telefonica de linea sencilla
DE3765074D1 (de) In eingriff bringbare gegenstaende.
TR27655A (tr) Entegre propülsiyon ve hidrofoyl sistemi.
TR23713A (tr) Suebstituye edilmis tiouereler,izotiouereler ve korbadiimetiller
DE3561213D1 (en) Bistable reversing device, especially for feeding an oxygen circuit in an airplane, and its application

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee