DK146184A - Anlaeg til traadloes overfoering af telefonsamtaler - Google Patents

Anlaeg til traadloes overfoering af telefonsamtaler Download PDF

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Publication number
DK146184A
DK146184A DK146184A DK146184A DK146184A DK 146184 A DK146184 A DK 146184A DK 146184 A DK146184 A DK 146184A DK 146184 A DK146184 A DK 146184A DK 146184 A DK146184 A DK 146184A
Authority
DK
Denmark
Prior art keywords
call
radio
channel
transmission
designed
Prior art date
Application number
DK146184A
Other languages
English (en)
Other versions
DK159705C (da
DK146184D0 (da
DK159705B (da
Inventor
Dag E Son Aakerberg
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of DK146184A publication Critical patent/DK146184A/da
Publication of DK146184D0 publication Critical patent/DK146184D0/da
Publication of DK159705B publication Critical patent/DK159705B/da
Application granted granted Critical
Publication of DK159705C publication Critical patent/DK159705C/da

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
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/56—Circuits using the same frequency for two directions of communication with provision for simultaneous communication in two directions
    • 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
    • H04M1/725—Cordless telephones
    • H04M1/733—Cordless telephones with a plurality of base stations connected to a plurality of lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Telephonic Communication Services (AREA)
  • Transceivers (AREA)
DK146184A 1982-07-06 1984-02-29 Anlaeg til traadloes overfoering af telefonsamtaler DK159705C (da)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE8204187A SE453449B (sv) 1982-07-06 1982-07-06 Anleggning for tradlos overforing av telefonsamtal
SE8204187 1982-07-06
SE8300220 1983-06-02
PCT/SE1983/000220 WO1984000455A1 (en) 1982-07-06 1983-06-02 Equipment for wireless telephone transmission

Publications (4)

Publication Number Publication Date
DK146184A true DK146184A (da) 1984-02-29
DK146184D0 DK146184D0 (da) 1984-02-29
DK159705B DK159705B (da) 1990-11-19
DK159705C DK159705C (da) 1991-04-15

Family

ID=20347310

Family Applications (1)

Application Number Title Priority Date Filing Date
DK146184A DK159705C (da) 1982-07-06 1984-02-29 Anlaeg til traadloes overfoering af telefonsamtaler

Country Status (9)

Country Link
US (1) US4682350A (da)
EP (1) EP0112850B1 (da)
JP (1) JPS59501240A (da)
CA (1) CA1197640A (da)
DE (1) DE3366796D1 (da)
DK (1) DK159705C (da)
IT (1) IT1206690B (da)
SE (1) SE453449B (da)
WO (1) WO1984000455A1 (da)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2151436A (en) * 1983-12-09 1985-07-17 Philips Electronic Associated Duplex speech transmission method and a system therefor
US4741019A (en) * 1984-03-15 1988-04-26 Sanyo Electric Co., Ltd. Cordless telephone
GB8418935D0 (en) * 1984-07-25 1984-08-30 Racal Res Ltd Duplex communications
US4737975A (en) * 1984-09-18 1988-04-12 Metrofone, Inc. Programmable system for interfacing a standard telephone set with a radio transceiver
US4675863A (en) 1985-03-20 1987-06-23 International Mobile Machines Corp. Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
SE448199B (sv) * 1985-05-09 1987-01-26 Ericsson Telefon Ab L M Anleggning med flera berbara, snorlosa telefonapparater
US4754450A (en) * 1986-03-25 1988-06-28 Motorola, Inc. TDM communication system for efficient spectrum utilization
KR950005863B1 (ko) * 1986-03-25 1995-05-31 모토로라 인코포레이티드 시분할 다중 통신 시스템의 송수신 장치
JPS63151119A (ja) * 1986-12-15 1988-06-23 Nec Corp プレス検出回路
US5930297A (en) * 1989-11-20 1999-07-27 Interdigital Technology Corporation Base station emulator
US7106819B1 (en) 1987-11-20 2006-09-12 Interdigital Technology Corporation Plural subscriber system utilizing synchronized timeslots on a single frequency
US4935927A (en) * 1987-11-20 1990-06-19 International Mobile Machines Corporation Base station emulator
US5495508A (en) * 1987-11-20 1996-02-27 Interdigital Technology Corporation Base station emulator
US5490167A (en) * 1989-08-09 1996-02-06 Touhoku-Denryoku Kabushiki Kaisha Duplex voice communication radio transmitter-receiver
JPH04342345A (ja) * 1991-05-20 1992-11-27 Pioneer Commun Corp コードレス電話の一斉音声呼出し方式
EP0523366A3 (en) * 1991-06-27 1993-06-23 Siemens Aktiengesellschaft Method for reducing power consumption in the mobile part of a cordless telephone
FI103442B (fi) * 1993-09-24 1999-06-30 Nokia Telecommunications Oy Digitaalinen radiolinkkijärjestelmä ja radiolinkkilaite
US5546383A (en) 1993-09-30 1996-08-13 Cooley; David M. Modularly clustered radiotelephone system
US6075831A (en) * 1995-12-29 2000-06-13 Advanced Micro Devices FIFO and system synchronization system and method
JP2000036702A (ja) * 1998-07-21 2000-02-02 Hitachi Ltd 無線端末
JP3784583B2 (ja) * 1999-08-13 2006-06-14 沖電気工業株式会社 音声蓄積装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3673335A (en) * 1970-08-24 1972-06-27 Bell Telephone Labor Inc Switching of time division multiplex lines and analog trunks through telephone central offices
GB1364808A (en) * 1971-12-08 1974-08-29 Sendai Television Broadcasting Simultaneous radio communication system
NL7511562A (nl) * 1975-02-05 1976-08-09 Chiba Communications Ind Radiocommunicatie-stelsel met mogelijkheid van gelijktijdige communicatie tussen radioposten.
JPS5335411A (en) * 1976-09-14 1978-04-01 Sony Corp Communicating method for dual directions
US4268722A (en) * 1978-02-13 1981-05-19 Motorola, Inc. Radiotelephone communications system
JPS5548812A (en) * 1978-10-02 1980-04-08 Yorimoto Tanno Compressing and expanding unit for time axis of audio
GB2043400A (en) * 1979-02-23 1980-10-01 Tung Chen Wang Portable telephone set coupled to a telephone line by a radio link
GB2109197B (en) * 1981-10-13 1985-12-04 Standard Telephones Cables Ltd Radio system
CA1181184A (en) * 1982-07-29 1985-01-15 Ephraim Arnon Time compression multiplex digital transmission system

Also Published As

Publication number Publication date
SE453449B (sv) 1988-02-01
DE3366796D1 (en) 1986-11-13
DK159705C (da) 1991-04-15
JPS59501240A (ja) 1984-07-12
EP0112850B1 (en) 1986-10-08
EP0112850A1 (en) 1984-07-11
IT1206690B (it) 1989-04-27
CA1197640A (en) 1985-12-03
DK146184D0 (da) 1984-02-29
SE8204187D0 (sv) 1982-07-06
DK159705B (da) 1990-11-19
SE8204187L (da) 1984-01-07
US4682350A (en) 1987-07-21
IT8321936A0 (it) 1983-07-05
WO1984000455A1 (en) 1984-02-02

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PBP Patent lapsed
PBP Patent lapsed