BR7702918A - Aperfeicoamento em um circuito de interface para emprego num sistema de comunicacoes telefonicas movel - Google Patents

Aperfeicoamento em um circuito de interface para emprego num sistema de comunicacoes telefonicas movel

Info

Publication number
BR7702918A
BR7702918A BR7702918A BR7702918A BR7702918A BR 7702918 A BR7702918 A BR 7702918A BR 7702918 A BR7702918 A BR 7702918A BR 7702918 A BR7702918 A BR 7702918A BR 7702918 A BR7702918 A BR 7702918A
Authority
BR
Brazil
Prior art keywords
employment
improvement
communication system
interface circuit
mobile telephone
Prior art date
Application number
BR7702918A
Other languages
English (en)
Inventor
A Kobrinetz
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of BR7702918A publication Critical patent/BR7702918A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
BR7702918A 1976-05-11 1977-05-05 Aperfeicoamento em um circuito de interface para emprego num sistema de comunicacoes telefonicas movel BR7702918A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/685,223 US4010327A (en) 1976-05-11 1976-05-11 Communication system interface circuit

Publications (1)

Publication Number Publication Date
BR7702918A true BR7702918A (pt) 1978-05-23

Family

ID=24751250

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7702918A BR7702918A (pt) 1976-05-11 1977-05-05 Aperfeicoamento em um circuito de interface para emprego num sistema de comunicacoes telefonicas movel

Country Status (4)

Country Link
US (1) US4010327A (pt)
BR (1) BR7702918A (pt)
CA (1) CA1089016A (pt)
SE (1) SE419153B (pt)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1202809B (it) * 1978-12-22 1989-02-09 Sits Soc It Telecom Siemens Traslatore di linea per sistemi radiotelefonici
US4821292A (en) * 1987-06-03 1989-04-11 General Electric Company Adaptive limiter/detector which changes time constant upon detection of dotting pattern
US4835731A (en) * 1987-08-14 1989-05-30 General Electric Company Processor-to-processor communications protocol for a public service trunking system
US4903262A (en) * 1987-08-14 1990-02-20 General Electric Company Hardware interface and protocol for a mobile radio transceiver
US5125102A (en) * 1987-06-03 1992-06-23 Ericsson Ge Mobile Communications Inc. Trunked radio repeater system including synchronization of a control channel and working channels
US5274837A (en) * 1987-06-03 1993-12-28 Ericsson Ge Mobile Communications Inc. Trunked radio repeater system with multigroup calling feature
US4905302A (en) * 1987-06-03 1990-02-27 General Electric Company Trunked radio repeater system
US4939746A (en) * 1987-06-03 1990-07-03 General Electric Company Trunked radio repeater system
US4926496A (en) * 1987-08-14 1990-05-15 General Electric Company Method and apparatus for infrequent radio users to simply obtain emergency assistance
US4905234A (en) * 1987-06-03 1990-02-27 General Electric Company Apparatus and method for transmitting digital data over a radio communications channel
US5175866A (en) * 1987-06-03 1992-12-29 Ericcson Ge Mobile Communications Inc. Fail-soft architecture for public trunking system
US5274838A (en) * 1987-06-03 1993-12-28 Ericsson Ge Mobile Communications Inc. Fail-soft architecture for public trunking system
US5206863A (en) * 1987-08-14 1993-04-27 General Electric Company Processor-to-processor communications protocol for a public service trunking system
US5109543A (en) * 1987-08-14 1992-04-28 General Electric Company Hardware interface and protocol for a mobile radio transceiver
US5128930A (en) * 1987-08-14 1992-07-07 General Electric Company Processor-to-processor communications protocol for a public service trunking system
US5265093A (en) * 1987-08-14 1993-11-23 Ericsson Ge Mobile Communications Inc. Hardware interface and protocol for a mobile radio transceiver
US5086506A (en) * 1987-08-14 1992-02-04 General Electric Company Radio trunking fault detection system with power output monitoring and on-air monitoring
US5117501A (en) * 1988-08-08 1992-05-26 General Electric Company Dynamic regrouping in a trunked radio communications system
US5077828A (en) * 1988-09-01 1991-12-31 General Electric Company RF channel expansion in a trunked radio communications system
US5408680A (en) * 1992-08-11 1995-04-18 Ericsson Ge Mobile Communications Inc. Single channel autonomous digitally trunked RF communications system
US6233440B1 (en) * 1998-08-05 2001-05-15 Triquint Semiconductor, Inc. RF power amplifier with variable bias current
US7586458B2 (en) * 2007-03-19 2009-09-08 Ahmadreza Rofougaran Method and system for using a transformer for FM transmit and FM receive functionality

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2190546A (en) * 1938-08-27 1940-02-13 American Telephone & Telegraph Control circuit for radio receivers
US2870326A (en) * 1956-05-14 1959-01-20 Collins Radio Co Device for selecting signal of greatest energy
US2985755A (en) * 1957-05-27 1961-05-23 Gen Electric Communication system
US3764915A (en) * 1971-06-25 1973-10-09 Bell Telephone Labor Inc Dynamic program control for channel assignment in mobile communication systems
US3898390A (en) * 1973-05-15 1975-08-05 Martin Marietta Corp Multiple zone communications system and method
US3984776A (en) * 1975-11-19 1976-10-05 Motorola, Inc. Signal quality detector

Also Published As

Publication number Publication date
US4010327A (en) 1977-03-01
SE7705415L (sv) 1977-11-12
CA1089016A (en) 1980-11-04
SE419153B (sv) 1981-07-13

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