FR2502871B1 - Systeme de commutation et de combinaison de signaux pour un systeme de communication radio - Google Patents

Systeme de commutation et de combinaison de signaux pour un systeme de communication radio

Info

Publication number
FR2502871B1
FR2502871B1 FR8204979A FR8204979A FR2502871B1 FR 2502871 B1 FR2502871 B1 FR 2502871B1 FR 8204979 A FR8204979 A FR 8204979A FR 8204979 A FR8204979 A FR 8204979A FR 2502871 B1 FR2502871 B1 FR 2502871B1
Authority
FR
France
Prior art keywords
radio communication
signal switching
communication system
combination
combination system
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
Application number
FR8204979A
Other languages
English (en)
Other versions
FR2502871A1 (fr
Inventor
Howard Thomson Bell
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.)
Ferranti International PLC
Original Assignee
Ferranti PLC
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 Ferranti PLC filed Critical Ferranti PLC
Publication of FR2502871A1 publication Critical patent/FR2502871A1/fr
Application granted granted Critical
Publication of FR2502871B1 publication Critical patent/FR2502871B1/fr
Expired legal-status Critical Current

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
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/0874—Hybrid systems, i.e. switching and combining using subgroups of receive antennas
    • 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
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/0871—Hybrid systems, i.e. switching and combining using different reception schemes, at least one of them being a diversity reception scheme

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
FR8204979A 1981-03-26 1982-03-24 Systeme de commutation et de combinaison de signaux pour un systeme de communication radio Expired FR2502871B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8109470A GB2096865B (en) 1981-03-26 1981-03-26 Diversity receivers

Publications (2)

Publication Number Publication Date
FR2502871A1 FR2502871A1 (fr) 1982-10-01
FR2502871B1 true FR2502871B1 (fr) 1986-07-25

Family

ID=10520674

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8204979A Expired FR2502871B1 (fr) 1981-03-26 1982-03-24 Systeme de commutation et de combinaison de signaux pour un systeme de communication radio

Country Status (4)

Country Link
US (1) US4450585A (fr)
FR (1) FR2502871B1 (fr)
GB (1) GB2096865B (fr)
IT (1) IT1148151B (fr)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4605902A (en) * 1982-09-03 1986-08-12 Rockwell International Corporation Hybrid junction signal combiner
JPS59181732A (ja) * 1983-03-31 1984-10-16 Toshiba Corp 携帯用無線機におけるダイバ−シチ−受信方式
CA1218115A (fr) * 1983-07-25 1987-02-17 Sony Corporation Appareil de reception en diversite spatiale
JPS61284125A (ja) * 1985-06-11 1986-12-15 Nec Corp ダイバ−シチ受信方式
JPH0683127B2 (ja) * 1985-07-22 1994-10-19 日本電気株式会社 ダイバーシチ受信無線機
DE3916751C2 (de) * 1989-05-23 1998-12-24 Daimler Benz Aerospace Ag Verfahren zur Detektion eines Nutzsignals
NZ239733A (en) * 1990-09-21 1994-04-27 Ericsson Ge Mobile Communicat Mobile telephone diversity reception with predetect signal combination
US5239698A (en) * 1990-09-28 1993-08-24 Motorola, Inc. Linear weighting method and device for diversity reception
CA2052802A1 (fr) * 1990-10-11 1993-04-05 Robert R. Clappier Methode et systeme antievanouissement pour recepteur fm
US5203025A (en) * 1990-11-09 1993-04-13 Kovatel Communications, Ltd. Selection circuit in a space diversity reception system for a mobile receiver
US5666660A (en) * 1991-05-31 1997-09-09 Telefunken System for receiving a radio signal including multiple receiving units
US5740519A (en) * 1991-05-31 1998-04-14 Telefunken Method for the time-correlated transmission of a control signal and a radio program signal
US5396645A (en) * 1992-04-09 1995-03-07 Comcast Pcs Communications, Inc. System and method for determining whether to assign a macrocell or microcell communication frequency to a mobile communication terminal
DE4226676A1 (de) * 1992-08-12 1994-02-17 Philips Patentverwaltung Kanalauswahleinrichtung
US5487091A (en) * 1993-08-13 1996-01-23 Motorola, Inc. Method for determining signal usability in a diversity receiver
US5351274A (en) * 1993-08-20 1994-09-27 General Electric Company Post detection selection combining diversity receivers for mobile and indoor radio channels
US5481571A (en) * 1993-11-12 1996-01-02 Pacific Communication Sciences, Inc. Method and apparatus for switching between radio frequency circuits
DE4343765C2 (de) * 1993-12-21 2003-11-13 Detecon Gmbh Steuerungssystem für die Funkversorgung in einem zellularen, digitalen Mobilkommunikationssystem
EP0728372A1 (fr) * 1994-09-14 1996-08-28 Koninklijke Philips Electronics N.V. Systeme de transmission radio et appareil radio associe
US5610617A (en) * 1995-07-18 1997-03-11 Lucent Technologies Inc. Directive beam selectivity for high speed wireless communication networks
DE19637327B4 (de) * 1996-09-13 2009-04-09 Delphi Delco Electronics Europe Gmbh Frequenzdiversity-Anordnung
US5845199A (en) * 1996-12-05 1998-12-01 Ericsson Inc. Simulcasting system with diversity reception
US6172970B1 (en) * 1997-05-05 2001-01-09 The Hong Kong University Of Science And Technology Low-complexity antenna diversity receiver
US6185266B1 (en) * 1997-10-07 2001-02-06 Motorola, Inc. Method and system for generating a power control metric in an orthogonal transmit diversity communication system
US6577353B1 (en) * 1999-10-21 2003-06-10 General Electric Company Optimization of television reception by selecting among or combining multiple antenna inputs
DE10009327C2 (de) * 2000-02-28 2002-01-24 Harman Becker Automotive Sys Verfahren zum Identifizieren gleicher Fernseh- oder Videobilder
DE10034039A1 (de) * 2000-07-13 2002-01-31 Harman Becker Automotive Sys Runddfunkempfangssystem, Empfänger und Betriebsverfahren dafür
EP1233556A1 (fr) * 2001-02-16 2002-08-21 Sony International (Europe) GmbH Récepteur pour la réception d'émissions radiophoniques comportant deux récepteurs, pour la réception d'un signal radiophonique qui est transmis sur deux fréquences différentes ou avec deux systèmes de transmission différents
GB2374219B (en) * 2001-04-06 2004-10-13 Nokia Corp A receiver
US7747232B2 (en) * 2001-07-13 2010-06-29 Harman Becker Automotive Systems Gmbh Radio reception system with automatic tuning
CN2749181Y (zh) * 2004-12-28 2005-12-28 精恒科技集团有限公司 多天线接收输出处理装置
US7912111B2 (en) * 2005-12-29 2011-03-22 Trimble Navigation Ltd Dynamic switching of carrier tracking loops without loss of tracking information
US20110001886A1 (en) * 2009-07-01 2011-01-06 Tien-Ju Tsai Carrier tracking system and method
CN102474332B (zh) * 2009-07-17 2015-04-01 飞思卡尔半导体公司 分集式接收器和收发器
FR2950505B1 (fr) * 2009-09-22 2014-12-19 Stephane Canet Procede permettant de commander a distance l'execution d'au moins une fonction d'un systeme informatique.
US8548031B2 (en) * 2009-12-30 2013-10-01 Silicon Laboratories Inc. Antenna diversity system with frame synchronization
US20110158298A1 (en) * 2009-12-30 2011-06-30 Silicon Laboratories, Inc. Tuner circuit with an inter-chip transmitter and method of providing an inter-chip link frame
US8331887B2 (en) * 2009-12-30 2012-12-11 Silicon Laboratories Inc. Antenna diversity system with multiple tuner circuits having multiple operating modes and methods
US8706058B2 (en) * 2011-03-24 2014-04-22 Honeywell International Inc. RF data transfer in a spherical cavity
US9178592B1 (en) * 2014-07-24 2015-11-03 Silicon Laboratories Inc. Systems and methods using multiple inter-chip (IC) links for antenna diversity and/or debug

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248121B (de) * 1960-10-03 1967-08-24 Sociata Italiana Telecomunicaz Schaltungsanordnung zur Gewinnung eines kombinierten Ausgangssignals aus zwei Einzelausgangssignalen zweier Diversity-Empfaenger
US3293607A (en) * 1961-10-20 1966-12-20 David C Kalbfell Coherent decision making receiver system
US3471788A (en) * 1966-07-01 1969-10-07 Raytheon Co Predetection signal processing system
FR1499243A (fr) * 1966-08-04 1967-10-27 Thomson Houston Comp Francaise Perfectionnements aux procédés et dispositifs de réception en diversité
US3593147A (en) * 1969-03-04 1971-07-13 Itt Equal gain diversity receiving system with squelch
JPS51135411A (en) * 1975-05-20 1976-11-24 Toshiba Corp Arriving power comporison circuit
JPS5836539B2 (ja) * 1975-12-08 1983-08-10 ソニー株式会社 ジユシンソウチ
GB1588367A (en) * 1977-10-18 1981-04-23 Parker B D Apparatus for selecting one of a plurality of receivers receiving a signal from a single common source
JPS54112117A (en) * 1978-02-22 1979-09-01 Nec Corp Composing receiver
CH630498A5 (de) * 1978-05-11 1982-06-15 Patelhold Patentverwertung Anordnung zum automatischen umschalten von parallel betriebenen richtfunkanlagen.

Also Published As

Publication number Publication date
GB2096865A (en) 1982-10-20
FR2502871A1 (fr) 1982-10-01
IT1148151B (it) 1986-11-26
IT8248090A0 (it) 1982-03-25
US4450585A (en) 1984-05-22
GB2096865B (en) 1984-12-12

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Legal Events

Date Code Title Description
ST Notification of lapse