IT1128754B - Sistema ricevitore a diversita spaziale per segnali radio - Google Patents

Sistema ricevitore a diversita spaziale per segnali radio

Info

Publication number
IT1128754B
IT1128754B IT67209/80A IT6720980A IT1128754B IT 1128754 B IT1128754 B IT 1128754B IT 67209/80 A IT67209/80 A IT 67209/80A IT 6720980 A IT6720980 A IT 6720980A IT 1128754 B IT1128754 B IT 1128754B
Authority
IT
Italy
Prior art keywords
radio signals
receiver system
diversity receiver
space diversity
space
Prior art date
Application number
IT67209/80A
Other languages
English (en)
Other versions
IT8067209A0 (it
Inventor
Okamoto Yoshiharu
Horikawa Izumi
Komaki Shozo
Original Assignee
Nippon Telegraph & Telephone
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
Priority claimed from JP54014359A external-priority patent/JPS6021493B2/ja
Priority claimed from JP54035643A external-priority patent/JPS5915223B2/ja
Priority claimed from JP54039743A external-priority patent/JPS6021494B2/ja
Priority claimed from JP14886779A external-priority patent/JPS5672548A/ja
Application filed by Nippon Telegraph & Telephone filed Critical Nippon Telegraph & Telephone
Publication of IT8067209A0 publication Critical patent/IT8067209A0/it
Application granted granted Critical
Publication of IT1128754B publication Critical patent/IT1128754B/it

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
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/084—Equal gain combining, only phase adjustments

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
IT67209/80A 1979-02-13 1980-02-12 Sistema ricevitore a diversita spaziale per segnali radio IT1128754B (it)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP54014359A JPS6021493B2 (ja) 1979-02-13 1979-02-13 スペ−ス・ダイバ−シテイ受信方式
JP54035643A JPS5915223B2 (ja) 1979-03-28 1979-03-28 スペ−ス・ダイバ−シチ受信装置
JP54039743A JPS6021494B2 (ja) 1979-04-04 1979-04-04 スペ−ス・ダイバ−シティ受信方式
JP14886779A JPS5672548A (en) 1979-11-19 1979-11-19 Space diversity receiving system

Publications (2)

Publication Number Publication Date
IT8067209A0 IT8067209A0 (it) 1980-02-12
IT1128754B true IT1128754B (it) 1986-06-04

Family

ID=27456187

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67209/80A IT1128754B (it) 1979-02-13 1980-02-12 Sistema ricevitore a diversita spaziale per segnali radio

Country Status (6)

Country Link
US (2) US4326294A (it)
CA (1) CA1128134A (it)
DE (1) DE3003820C2 (it)
FR (1) FR2449372B1 (it)
GB (1) GB2042307B (it)
IT (1) IT1128754B (it)

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US4261056A (en) * 1979-07-16 1981-04-07 Bell Telephone Laboratories, Incorporated Equalizing signal combiner
US4293955A (en) * 1980-03-17 1981-10-06 Telex Communications, Inc. Diversity reception system
DE3110602C2 (de) * 1980-03-28 1985-07-04 Nippon Telegraph & Telephone Public Corp., Tokio/Tokyo Interferenz-Kompensationssystem
JPS5733834A (en) 1980-08-07 1982-02-24 Clarion Co Ltd Frequency modulation noise reducing circuit
DE3030811C2 (de) * 1980-08-14 1982-08-19 Siemens AG, 1000 Berlin und 8000 München Raumdiversity-Empfänger mit ZF-Kombinator
JPS5913442A (ja) * 1982-07-14 1984-01-24 Nec Corp 信号分散最小型スペ−ス・ダイバ−シテイ−装置
JPS5913441A (ja) * 1982-07-14 1984-01-24 Nec Corp 干渉波消去型スペ−スダイバ−シテイ−装置
JPS59230334A (ja) * 1983-06-13 1984-12-24 Fujitsu Ltd 空間ダイバ−シチ受信方式
US4512034A (en) * 1983-07-11 1985-04-16 At&T Bell Laboratories Technique for digital radio space diversity combining
US4688096A (en) * 1986-06-25 1987-08-18 Rca Corporation Demodulation phase error compensation circuitry as for an automatic deghosting system
US4797950A (en) * 1986-11-10 1989-01-10 Kenneth Rilling Multipath reduction system
DE3836046A1 (de) * 1987-10-31 1989-05-11 Hirschmann Radiotechnik Empfangsverfahren und empfangs-antennensystem zur durchfuehrung des verfahrens
DE3741698A1 (de) * 1987-12-09 1989-06-29 Blaupunkt Werke Gmbh Empfaenger fuer radiowellen mit mehreren antennen
WO1989007864A1 (en) * 1988-02-11 1989-08-24 Rilling Kenneth F Multipath reduction system
FR2627653B1 (fr) * 1988-02-18 1994-04-08 Alcatel Thomson Faisceaux Hertzi Procede d'asservissement de l'instant de regeneration dans une transmission numerique utilisant une modulation de porteuse selon deux axes en quadrature et dispositif de mise en oeuvre de ce procede
FR2628914B1 (fr) * 1988-03-18 1990-06-29 Alcatel Thomson Faisceaux Recepteur pour systeme de transmission par voie hertzienne a diversite d'espace, comprenant un combineur de diversite
DE3889326D1 (de) * 1988-05-27 1994-06-01 Itt Ind Gmbh Deutsche Korrekturschaltung für ein digitales Quadratur-Signalpaar.
US5095535A (en) * 1988-07-28 1992-03-10 Motorola, Inc. High bit rate communication system for overcoming multipath
DE3828817A1 (de) * 1988-08-25 1990-03-08 Ant Nachrichtentech Raumdiversity-empfaengerschaltung
US5285120A (en) * 1988-09-15 1994-02-08 Rockwell International Corporation Broadband phase splitter
US5203023A (en) * 1989-03-28 1993-04-13 Nippon Telegraph And Telephone Corporation Phase likelihood comparison diversity receiver
US5062148A (en) * 1989-06-02 1991-10-29 Hewlett-Packard Company Multi-path fading simulator
US5031233A (en) * 1989-07-11 1991-07-09 At&E Corporation Single chip radio receiver with one off-chip filter
US5140198A (en) * 1989-08-30 1992-08-18 Seiko Corporation Image canceling mixer circuit on an integrated circuit chip
JPH03213021A (ja) * 1990-01-18 1991-09-18 Fujitsu Ltd Ｓｄ受信装置
EP0459000B1 (de) * 1990-05-31 1995-09-06 Siemens Aktiengesellschaft Kombinationsschaltung bei Raumdiversityempfang
JPH04119019A (ja) * 1990-09-07 1992-04-20 Fujitsu Ltd 携帯型受信機
FR2669166A1 (fr) * 1990-11-13 1992-05-15 Trt Telecom Radio Electr Dispositif de reception forme d'une pluralite de branches de reception.
US5321850A (en) * 1991-10-09 1994-06-14 Telefonaktiebolaget L M Ericsson Diversity radio receiver automatic frequency control
FI915834A0 (fi) * 1991-12-11 1991-12-11 Nokia Mobile Phones Ltd Foerfarande foer flerantennmottagning.
IT1255862B (it) * 1992-10-14 1995-11-17 Sits Soc It Telecom Siemens Combinatore a strategia di combinazione mista per ricevitori operanti in ponti radio digitali ad alta capacita' protetti con diversita' di spazio o d'angolo
US5489869A (en) * 1994-05-17 1996-02-06 Rockwell International Antenna control unit attenuator and Bi-phase modulator
US5787344A (en) 1994-06-28 1998-07-28 Scheinert; Stefan Arrangements of base transceiver stations of an area-covering network
US5711009A (en) * 1996-04-01 1998-01-20 The United States Of America As Represented By The Secretary Of The Navy Method and apparatus for minimizing the effects of frequency selective fading on a PCM/FM data signal
US6151373A (en) * 1997-04-03 2000-11-21 At&T Corp. Weak signal resolver
JP3451178B2 (ja) * 1997-05-19 2003-09-29 富士通株式会社 スペースダイバーシティ受信装置
US6064865A (en) * 1999-03-01 2000-05-16 Ford Motor Company Proportional diversity radio receiver system with dynamic noise-controlled antenna phasers
US6704557B1 (en) * 1999-04-22 2004-03-09 Lucent Technologies Inc. System and method for protecting a receiver from jamming interference
FR2794311B1 (fr) 1999-05-27 2007-12-14 France Telecom Filtre passe-bande a reduction de la frequence porteuse
US20070259636A1 (en) * 2000-10-27 2007-11-08 Fisher Daniel E RF bridge for an angle rate interferometer
JP3617487B2 (ja) * 2001-10-30 2005-02-02 日本電気株式会社 スペースダイバーシティ受信機及びその動作制御方法並びにプログラム
KR100677296B1 (ko) * 2002-03-27 2007-02-05 엘지전자 주식회사 다이버시티 수신 장치
JP2003333012A (ja) * 2002-05-16 2003-11-21 Matsushita Electric Ind Co Ltd ダイバーシティ装置及びダイバーシティ方法
DE10337417B3 (de) * 2003-08-14 2005-05-19 Siemens Ag Kommunikationsendgerät für Mehrfachempfang und Echokompensation
US9026070B2 (en) * 2003-12-18 2015-05-05 Qualcomm Incorporated Low-power wireless diversity receiver with multiple receive paths
US7848741B2 (en) 2003-12-30 2010-12-07 Kivekaes Kalle Method and system for interference detection
US7643811B2 (en) * 2004-05-26 2010-01-05 Nokia Corporation Method and system for interference detection
US9450665B2 (en) * 2005-10-19 2016-09-20 Qualcomm Incorporated Diversity receiver for wireless communication
FR2896370A1 (fr) * 2006-01-13 2007-07-20 Thomson Licensing Sas Dispositif et methode d'amelioration du rapport porteuse a bruit pour un recepteur a diversite
USD608647S1 (en) 2008-06-05 2010-01-26 Colgate-Palmolive Co. Container
USD630517S1 (en) 2009-06-09 2011-01-11 Colgate-Palmolive Company Container
USD616308S1 (en) 2009-06-09 2010-05-25 Colgate-Palmolive Company Container
USD615869S1 (en) 2009-06-09 2010-05-18 Colgate-Palmolive Company Container
FR2954551B1 (fr) * 2009-12-21 2012-08-17 Commissariat Energie Atomique Dispositif d'echange de donnees sans contact securise entre un lecteur et une carte
US9425505B2 (en) * 2010-11-18 2016-08-23 Lattice Semiconductor Corporation Integrated phase-shifting-and-combining circuitry to support multiple antennas
US9178669B2 (en) 2011-05-17 2015-11-03 Qualcomm Incorporated Non-adjacent carrier aggregation architecture
US9252827B2 (en) 2011-06-27 2016-02-02 Qualcomm Incorporated Signal splitting carrier aggregation receiver architecture
US9154179B2 (en) 2011-06-29 2015-10-06 Qualcomm Incorporated Receiver with bypass mode for improved sensitivity
US12081243B2 (en) 2011-08-16 2024-09-03 Qualcomm Incorporated Low noise amplifiers with combined outputs
US8774334B2 (en) 2011-11-09 2014-07-08 Qualcomm Incorporated Dynamic receiver switching
US9172402B2 (en) 2012-03-02 2015-10-27 Qualcomm Incorporated Multiple-input and multiple-output carrier aggregation receiver reuse architecture
US9362958B2 (en) 2012-03-02 2016-06-07 Qualcomm Incorporated Single chip signal splitting carrier aggregation receiver architecture
US9118439B2 (en) 2012-04-06 2015-08-25 Qualcomm Incorporated Receiver for imbalanced carriers
US9154356B2 (en) 2012-05-25 2015-10-06 Qualcomm Incorporated Low noise amplifiers for carrier aggregation
US9867194B2 (en) 2012-06-12 2018-01-09 Qualcomm Incorporated Dynamic UE scheduling with shared antenna and carrier aggregation
US9300420B2 (en) 2012-09-11 2016-03-29 Qualcomm Incorporated Carrier aggregation receiver architecture
US9543903B2 (en) 2012-10-22 2017-01-10 Qualcomm Incorporated Amplifiers with noise splitting
US8995591B2 (en) 2013-03-14 2015-03-31 Qualcomm, Incorporated Reusing a single-chip carrier aggregation receiver to support non-cellular diversity
US10177722B2 (en) 2016-01-12 2019-01-08 Qualcomm Incorporated Carrier aggregation low-noise amplifier with tunable integrated power splitter

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1794418A (en) * 1926-12-04 1931-03-03 American Telephone & Telegraph Radio receiving circuit
FR992116A (fr) * 1944-05-12 1951-10-15 Radio Electr Soc Fr Perfectionnements aux liaisons radio-électriques
US3036301A (en) * 1952-12-05 1962-05-22 Raytheon Co Communication systems
US2860238A (en) * 1953-03-05 1958-11-11 Motorola Inc Diversity receiving system
BE557137A (it) * 1956-02-14
GB1062943A (en) * 1963-09-12 1967-03-22 Senn Custom Inc Interference suppression system
DE1298154B (de) * 1967-06-19 1969-06-26 Telefunken Patent Verfahren zum Ausblenden einer Stoerwelle
CA1088632A (en) * 1975-06-23 1980-10-28 Nippon Eectric Co., Ltd. Space diversity receiving system with phase- controlled signal combining at intermediate frequency stage
CH608669A5 (en) * 1976-06-25 1979-01-15 Standard Telephon & Radio Ag Phase shifter for space diversity systems
JPS535919A (en) * 1976-07-06 1978-01-19 Toshiba Corp Power synthesizer
US4160952A (en) * 1978-05-12 1979-07-10 Bell Telephone Laboratories, Incorporated Space diversity receiver with combined step and continuous phase control
US4232399A (en) * 1978-10-05 1980-11-04 Bell Telephone Laboratories, Incorporated Continuously variable phase shift network
US4261056A (en) * 1979-07-16 1981-04-07 Bell Telephone Laboratories, Incorporated Equalizing signal combiner

Also Published As

Publication number Publication date
GB2042307A (en) 1980-09-17
DE3003820A1 (de) 1980-08-14
DE3003820C2 (de) 1981-10-08
IT8067209A0 (it) 1980-02-12
US4326294A (en) 1982-04-20
FR2449372A1 (fr) 1980-09-12
US4710975A (en) 1987-12-01
FR2449372B1 (fr) 1986-09-12
GB2042307B (en) 1983-11-02
CA1128134A (en) 1982-07-20

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19990226