DE3885369D1 - Booster-Verstärker. - Google Patents

Booster-Verstärker.

Info

Publication number
DE3885369D1
DE3885369D1 DE88112568T DE3885369T DE3885369D1 DE 3885369 D1 DE3885369 D1 DE 3885369D1 DE 88112568 T DE88112568 T DE 88112568T DE 3885369 T DE3885369 T DE 3885369T DE 3885369 D1 DE3885369 D1 DE 3885369D1
Authority
DE
Germany
Prior art keywords
boosted
signals
signal
booster amplifier
isolation
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
DE88112568T
Other languages
English (en)
Other versions
DE3885369T2 (de
Inventor
Samuel Augustus Leslie
Robert T Gordon
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.)
Allen Telecom LLC
Original Assignee
Orion Industries 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 Orion Industries Inc filed Critical Orion Industries Inc
Publication of DE3885369D1 publication Critical patent/DE3885369D1/de
Application granted granted Critical
Publication of DE3885369T2 publication Critical patent/DE3885369T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15507—Relay station based processing for cell extension or control of coverage area
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
    • H04B7/15542—Selecting at relay station its transmit and receive resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
DE88112568T 1987-08-03 1988-08-02 Booster-Verstärker. Expired - Fee Related DE3885369T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/081,120 US4941200A (en) 1987-08-03 1987-08-03 Booster

Publications (2)

Publication Number Publication Date
DE3885369D1 true DE3885369D1 (de) 1993-12-09
DE3885369T2 DE3885369T2 (de) 1994-03-24

Family

ID=22162220

Family Applications (1)

Application Number Title Priority Date Filing Date
DE88112568T Expired - Fee Related DE3885369T2 (de) 1987-08-03 1988-08-02 Booster-Verstärker.

Country Status (8)

Country Link
US (2) US4941200A (de)
EP (1) EP0302455B1 (de)
JP (1) JP2919839B2 (de)
AT (1) ATE96954T1 (de)
DE (1) DE3885369T2 (de)
ES (1) ES2047510T3 (de)
FI (1) FI88658C (de)
HK (1) HK1004310A1 (de)

Families Citing this family (108)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5152002A (en) * 1987-08-03 1992-09-29 Orion Industries, Inc. System and method for extending cell site coverage
US4909193A (en) * 1987-09-15 1990-03-20 Performance Industries, Inc. Exhaust control valve for fuel injected two-stroke cycle engines and process for using same
US4924819A (en) * 1987-09-15 1990-05-15 Performance Industries, Inc. Rotary exhaust control valve for two-stroke cycle engines and process for using the same
US4911115A (en) * 1987-09-15 1990-03-27 Performance Industries, Inc. Slide exhaust control valve for fuel injected two-stroke cycle engines and process for using same
CA2019814A1 (en) * 1989-07-07 1991-01-07 Linwood C. Watkins, Jr. Dual donor booster system
GB2239996B (en) * 1990-01-12 1994-08-17 Technophone Ltd Booster for a portable radio telephone
US5187806A (en) * 1990-02-16 1993-02-16 Johnson Edward R Apparatus and method for expanding cellular system capacity
US5179720A (en) * 1990-02-23 1993-01-12 Motorola, Inc. Method and apparatus for extended coverage of a trunked radio communications system
CA2041705A1 (en) * 1990-07-25 1992-01-26 Jesse Eugene Russell Method and apparatus for providing wireless communications between remote locations
US5218715A (en) * 1991-01-15 1993-06-08 Orion Industries, Inc. Multi-donor booster operation and system
US5265150A (en) * 1991-01-30 1993-11-23 At&T Bell Laboratories Automatically configuring wireless PBX system
US5434798A (en) * 1991-05-23 1995-07-18 Telefonaktiebolaget L M Ericcson Reconfiguration in a cellular communications network
CA2108459A1 (en) * 1991-05-29 1992-11-30 Russell J. Fang Fully meshed cdma network for personal communications terminals
CA2058737C (en) * 1992-01-03 1997-03-18 Andrew S. Beasley Rf repeater arrangement with improved frequency reuse for wireless telephones
US5548803A (en) * 1992-03-31 1996-08-20 Orion Industries, Inc. Dual-mode booster system
EP0568142A2 (de) * 1992-04-28 1993-11-03 Koninklijke Philips Electronics N.V. Verbessertes Sendernetzwerk mit nur einer Sendefrequenz
US5377255A (en) * 1992-07-14 1994-12-27 Pcs Microcell International Inc. RF repeaters for time division duplex cordless telephone systems
US5444862A (en) * 1992-09-30 1995-08-22 Fujitsu Limited Circuit for stopping data transmission responding to low level and rapid fall of received electric field
US5561845A (en) * 1992-10-02 1996-10-01 Orion Industries, Inc. Apparatus and method for preserving coverage in an overlapping coverage area
KR960000147B1 (ko) * 1992-11-05 1996-01-03 삼성전자주식회사 셀룰라 무선전화시스템의 송신전력 제어방법
US5542119A (en) * 1993-02-26 1996-07-30 Motorola, Inc. Method for selecting a highest quality signal for retransmission by base sites in a simulcast communication system
FI108382B (fi) * 1993-05-27 2002-01-15 Sonera Oyj Laitteisto ja menetelmõ tiedon siirtõmiseksi
US5408681A (en) * 1993-08-16 1995-04-18 The United States Of America As Represented By The Secretary Of The Navy Automatic repeater station for signal transmissions
JPH0766775A (ja) * 1993-08-30 1995-03-10 Kokusai Electric Co Ltd 中継増幅装置
US5530409A (en) * 1993-10-21 1996-06-25 At&T Corp. Signal processing allocator
US5544222A (en) * 1993-11-12 1996-08-06 Pacific Communication Sciences, Inc. Cellular digtial packet data mobile data base station
US5469471A (en) * 1994-02-01 1995-11-21 Qualcomm Incorporated Method and apparatus for providing a communication link quality indication
SE502811C2 (sv) * 1994-05-11 1996-01-22 Allgon Ab Repeater
US5818385A (en) * 1994-06-10 1998-10-06 Bartholomew; Darin E. Antenna system and method
US5787344A (en) * 1994-06-28 1998-07-28 Scheinert; Stefan Arrangements of base transceiver stations of an area-covering network
DE69532135T2 (de) * 1994-11-04 2004-08-26 Andrew Corp., Orland Park System zur steuerung einer antenne
FR2727590B1 (fr) * 1994-11-24 1996-12-27 Alcatel Espace Charge utile de satellite a canaux transparents integres
GB2299732B (en) * 1995-04-06 1999-08-11 Nokia Mobile Phones Ltd A Wireless Base Station
US6334062B1 (en) 1995-06-07 2001-12-25 Cirrus Logic, Inc. Portable communications and data terminal operating to optimize receipt of both incoming CDPD and AMPS messages
US6370135B1 (en) 1995-06-07 2002-04-09 Cirrus Logic, Inc. Continuous CDPD base station and method of facilitating efficient data transfer
US5697052A (en) * 1995-07-05 1997-12-09 Treatch; James E. Cellular specialized mobile radio system
NL1000875C2 (nl) * 1995-07-24 1997-01-28 Nederland Ptt Telecommunicatiesystemen, alsmede basisstation alsmede repeaterstation, alsmede werkwijzen.
US5890055A (en) * 1995-07-28 1999-03-30 Lucent Technologies Inc. Method and system for connecting cells and microcells in a wireless communications network
US5737706A (en) * 1995-08-03 1998-04-07 Bell Atlantic Network Services, Inc. Power system supporting CDPD operation
FI955179A0 (fi) 1995-10-30 1995-10-30 Finland Telecom Oy Anordning och foerfarande foer dataoeverfoering
US5774789A (en) * 1995-12-14 1998-06-30 Allen Telecom Inc. RF communication signal distribution system and method
US5850592A (en) 1996-01-11 1998-12-15 Gte Internetworking Incorporated Method for self-organizing mobile wireless station network
DE29601436U1 (de) * 1996-01-29 1996-04-18 Impex Ges Fuer Elektronische A Funkgesteuerte Signalmelde- und -empfangsanlage
DE19611342A1 (de) * 1996-03-22 1997-09-25 Mikom Gmbh Repeater-Anordnung
US6088592A (en) * 1996-03-25 2000-07-11 Airnet Communications Corporation Wireless system plan using in band-translators with diversity backhaul to enable efficient depolyment of high capacity base transceiver systems
US5883884A (en) * 1996-04-22 1999-03-16 Roger F. Atkinson Wireless digital communication system having hierarchical wireless repeaters with autonomous hand-off
FI105511B (fi) 1996-10-29 2000-08-31 Nokia Networks Oy Menetelmä usean signaalin yhdistämiseksi ja tukiasema
US6016313A (en) * 1996-11-07 2000-01-18 Wavtrace, Inc. System and method for broadband millimeter wave data communication
US5978650A (en) * 1997-01-21 1999-11-02 Adc Telecommunications, Inc. System and method for transmitting data
US5937332A (en) * 1997-03-21 1999-08-10 Ericsson, Inc. Satellite telecommunications repeaters and retransmission methods
SE521614C2 (sv) * 1997-08-28 2003-11-18 Ericsson Telefon Ab L M Metod och apparat för radioeffektallokering och fördelning
US6104936A (en) * 1997-09-30 2000-08-15 Telefonaktiebolaget Lm Ericsson Method and apparatus for optimizing antenna tilt
US6269241B1 (en) * 1997-11-26 2001-07-31 Aerocomm, Inc. Ultra-Q filter
US6487187B1 (en) * 1997-11-26 2002-11-26 Airnet Communications Corporation Random access control channel gain control and time slot recovery for remote in-band translator in time division multiple access wireless system
JP3037927B2 (ja) * 1998-03-30 2000-05-08 インターナショナル・ビジネス・マシーンズ・コーポレイション 転送方法及び移動無線送受信機
US6400968B1 (en) * 1998-05-04 2002-06-04 Conexant Systems, Inc. System and method for extending the range of a base unit
FI106674B (fi) * 1998-05-14 2001-03-15 Nokia Networks Oy Menetelmä solukkoradiojärjestelmän toiminnan valvomiseksi
US6650630B1 (en) * 1999-06-25 2003-11-18 Telefonaktiebolaget Lm Ericsson (Publ) Resource management and traffic control in time-division-duplex communication systems
US6239744B1 (en) 1999-06-30 2001-05-29 Radio Frequency Systems, Inc. Remote tilt antenna system
WO2001052447A2 (en) 2000-01-14 2001-07-19 Andrew Corporation Repeaters for wireless communication systems
IL137078A (en) * 1999-07-20 2005-05-17 Andrew Corp Side-to-side repeater and adaptive cancellation for repeater
DE19938862C1 (de) 1999-08-17 2001-03-15 Kathrein Werke Kg Hochfrequenz-Phasenschieberbaugruppe
US20010031623A1 (en) * 2000-03-03 2001-10-18 Lee Masoian Channel booster amplifier
US7142619B2 (en) * 2000-04-26 2006-11-28 Symmetricom, Inc. Long subscriber loops using automatic gain control mid-span extender unit
EP1830488A1 (de) * 2000-06-05 2007-09-05 Sony Deutschland GmbH Drahtloses Innenraumkommunikationssystem mit aktivem Reflektor
US6973053B1 (en) 2000-09-12 2005-12-06 Bbnt Solutions Llc Using direct cluster member to cluster member links to improve performance in mobile communication systems
US6804501B1 (en) * 2000-09-25 2004-10-12 Prairiecomm, Inc. Receiver having gain control and narrowband interference detection
US7088953B2 (en) 2000-10-18 2006-08-08 Spotwave Wireless Canada Inc. Coverage area signature in an on-frequency repeater
CA2323881A1 (en) * 2000-10-18 2002-04-18 Dps Wireless Inc. Adaptive personal repeater
DE10104564C1 (de) * 2001-02-01 2002-09-19 Kathrein Werke Kg Steuerungsvorrichtung zum Einstellen eines unterschiedlichen Absenkwinkels insbesondere von zu einer Basisstation gehörenden Mobilfunkantennen sowie eine zugehörige Antenne und Verfahren zur Veränderung eines Absenkwinkels
KR100375318B1 (ko) * 2001-03-02 2003-03-10 (주)비엔씨모바일 주파수 변환 방식을 이용한 인-빌딩용 이동통신 중계 시스템
US7133697B2 (en) * 2001-05-14 2006-11-07 Andrew Corporation Translation unit for wireless communications system
US7103312B2 (en) * 2001-09-20 2006-09-05 Andrew Corporation Method and apparatus for band-to-band translation in a wireless communication system
US7120456B1 (en) 2001-11-07 2006-10-10 Bbn Technologies Corp. Wireless terminals with multiple transceivers
GB0200237D0 (en) * 2002-01-07 2002-02-20 Imec Inter Uni Micro Electr Wireless cellular network architecture
US20040166802A1 (en) * 2003-02-26 2004-08-26 Ems Technologies, Inc. Cellular signal enhancer
US6993287B2 (en) 2003-03-04 2006-01-31 Four Bars Clarity, Llc Repeater system for strong signal environments
US7555261B2 (en) 2003-03-04 2009-06-30 O'neill Frank P Repeater system for strong signal environments
US7558528B2 (en) * 2003-07-31 2009-07-07 Microsoft Corporation Wireless local area network translating bi-directional packet repeater
IL161869A (en) 2004-05-06 2014-05-28 Serconet Ltd A system and method for carrying a signal originating is wired using wires
EP1756971B1 (de) * 2004-05-26 2013-04-10 Wireless Extenders, Inc. Drahtloser zwischenverstärker für ein duplex-kommunikationssystem zur implementierung eines schutzes auf der basis von oszillationsdetektion
CN1985528B (zh) * 2004-06-03 2010-06-09 高通股份有限公司 具有低成本高性能本振架构的变频中继器
CN101036319B (zh) * 2004-10-20 2012-05-09 松下电器产业株式会社 辅助放大器
JP4577792B2 (ja) * 2005-03-23 2010-11-10 パイオニア株式会社 伝送システム、送信側伝送器、伝送方法、及びコンピュータプログラム
US8477731B2 (en) * 2005-07-25 2013-07-02 Qualcomm Incorporated Method and apparatus for locating a wireless local area network in a wide area network
JP4603462B2 (ja) * 2005-10-26 2010-12-22 日本無線株式会社 中継装置
JP4603464B2 (ja) * 2005-10-28 2010-12-22 日本無線株式会社 中継装置および受信装置
KR100943601B1 (ko) * 2005-12-27 2010-02-24 삼성전자주식회사 멀티 홉 릴레이 방식을 사용하는 통신 시스템에서 중계국선택 방법 및 시스템
US7813451B2 (en) 2006-01-11 2010-10-12 Mobileaccess Networks Ltd. Apparatus and method for frequency shifting of a wireless signal and systems using frequency shifting
US20070232228A1 (en) * 2006-04-04 2007-10-04 Mckay David L Sr Wireless repeater with universal server base unit and modular donor antenna options
US20090117859A1 (en) * 2006-04-07 2009-05-07 Belair Networks Inc. System and method for frequency offsetting of information communicated in mimo based wireless networks
EP2068576A1 (de) * 2006-10-03 2009-06-10 Panasonic Corporation Relaisstation in einem mobilen kommunikationssystem und verfahren zum einsetzen eines relaisübertragungskanals
US8594133B2 (en) 2007-10-22 2013-11-26 Corning Mobileaccess Ltd. Communication system using low bandwidth wires
US8175649B2 (en) 2008-06-20 2012-05-08 Corning Mobileaccess Ltd Method and system for real time control of an active antenna over a distributed antenna system
EP2220909B1 (de) 2007-12-21 2019-11-27 Telefonaktiebolaget LM Ericsson (publ) Knoten und verfahren zur verwendung in einem drahtlosen kommunikationssystem
US8897215B2 (en) 2009-02-08 2014-11-25 Corning Optical Communications Wireless Ltd Communication system using cables carrying ethernet signals
JP2010226655A (ja) * 2009-03-25 2010-10-07 Fujitsu Ltd 中継方法及び中継装置
JP5433404B2 (ja) * 2009-12-25 2014-03-05 株式会社東芝 無線レピータ装置
US10270152B2 (en) 2010-03-31 2019-04-23 Commscope Technologies Llc Broadband transceiver and distributed antenna system utilizing same
US8346160B2 (en) 2010-05-12 2013-01-01 Andrew Llc System and method for detecting and measuring uplink traffic in signal repeating systems
WO2013142662A2 (en) 2012-03-23 2013-09-26 Corning Mobile Access Ltd. Radio-frequency integrated circuit (rfic) chip(s) for providing distributed antenna system functionalities, and related components, systems, and methods
IL222786A (en) 2012-11-01 2016-09-29 Elta Systems Ltd Enable Boost to Downlink channels on a cellular communication system
EP3000183A4 (de) 2013-05-23 2016-10-19 Elta Systems Ltd Empfänger, system und verfahren für frequenzdiversitätskommunikation mit baken und verfahren in verbindung damit
WO2014188415A1 (en) 2013-05-23 2014-11-27 Elta Systems Ltd. Add-on apparatus for channel compensation of frequency diversity communications and methods useful in conjunction therewith
WO2014188413A1 (en) 2013-05-23 2014-11-27 Elta Systems Ltd. Add-on apparatus for synchronization of frequency diversity communications and methods useful in conjunction therewith
US9184960B1 (en) 2014-09-25 2015-11-10 Corning Optical Communications Wireless Ltd Frequency shifting a communications signal(s) in a multi-frequency distributed antenna system (DAS) to avoid or reduce frequency interference
US10322048B2 (en) 2017-01-31 2019-06-18 NextHealth, LLC Systems and methods for powered wheelchair personal transfer
IL256681B (en) 2017-12-31 2021-06-30 Elta Systems Ltd Partial repeater device for uplink transmission–system, method and computer software product

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045185A (en) * 1958-05-19 1962-07-17 Rca Corp Repeater station having diversity reception and full hot standby means
US3028489A (en) * 1959-12-28 1962-04-03 Bell Telephone Labor Inc Broadband radio relay system in which signals from adjacent repeaters are compared to control gain of each repeater
US3095538A (en) * 1960-10-28 1963-06-25 Silberstein Richard Satellite relay station using antenna diversity selection
US3328698A (en) * 1963-06-28 1967-06-27 Itt Selector for choosing the strongest signal including means for inhibiting all signals below a selected level
US3283249A (en) * 1963-12-23 1966-11-01 Bell Telephone Labor Inc Broadband radio repeater having parallel channels
US3411088A (en) * 1965-02-09 1968-11-12 Bell Telephone Labor Inc Automatic input power level adjustment apparatus for amplifier of a broadband repeater
US3450841A (en) * 1965-08-02 1969-06-17 Int Standard Electric Corp Carrier frequency stabilization for carrier frequency systems with suppressed carrier waves
US3667043A (en) * 1969-09-19 1972-05-30 Telcom Inc Constant gain bandwidth product communication satellite repeater
JPS5241082B2 (de) * 1973-03-28 1977-10-17
US4041389A (en) * 1975-07-09 1977-08-09 Gte Automatic Electric Laboratories Incorporated Nonfrequency-converting microwave radio repeater using a low power consumption amplifier
JPS5839423B2 (ja) * 1976-08-30 1983-08-30 日本電信電話株式会社 無線回線制御方式
JPS53148312A (en) * 1977-05-31 1978-12-23 Fujitsu Ltd Demodulation system for auxiliary line in direct repeating radio unit
FR2425777A1 (fr) * 1978-05-12 1979-12-07 Dassault Electronique Procede et appareil radio-electriques pour la collecte et le traitement d'informations provenant d'une multiplicite de postes
US4317218A (en) * 1980-03-26 1982-02-23 General Electric Company Arrangement for remote control of repeater stations
US4317216A (en) * 1980-05-09 1982-02-23 Tx Rx Systems, Inc. Bi-directional filter system for amplifying signals in separate frequency bands
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
US4475243A (en) * 1982-12-21 1984-10-02 Motorola, Inc. Isolation method and apparatus for a same frequency repeater
US4475010A (en) * 1983-05-05 1984-10-02 At&T Bell Laboratories High density cellular mobile radio communications
FR2556532B1 (fr) * 1983-12-09 1986-10-24 Trt Telecom Radio Electr Procede de radiocommunication bidirectionnelle entre des stations fixes et des stations mobiles
GB2151883B (en) * 1983-12-22 1987-10-21 Motorola Inc Queued community repeater communications system
JPS617736A (ja) * 1984-06-22 1986-01-14 Nec Corp 無線中継方式
US4613990A (en) * 1984-06-25 1986-09-23 At&T Bell Laboratories Radiotelephone transmission power control
JPS623536A (ja) * 1985-06-29 1987-01-09 Oki Electric Ind Co Ltd 移動体データ通信の良否判定装置
US4696053A (en) * 1985-07-03 1987-09-22 Canadian Marconi Corporation Antenna alignment system and method
FR2584884B1 (fr) * 1985-07-09 1987-10-09 Trt Telecom Radio Electr Procede et dispositif de recherche de canal libre pour un systeme de radio mobile
US4849963A (en) * 1985-10-15 1989-07-18 Minori Kawano Cellular radio telephone enhancement circuit
US4754495A (en) * 1985-12-16 1988-06-28 Minori Kawano Cell enhancer for cellular radio telephone system having bandpass filter arrangement
US4726050A (en) * 1986-02-18 1988-02-16 Motorola, Inc. Scanning receiver allocation method and apparatus for cellular radiotelephone systems
US4704734A (en) * 1986-02-18 1987-11-03 Motorola, Inc. Method and apparatus for signal strength measurement and antenna selection in cellular radiotelephone systems
US4718108A (en) * 1986-05-19 1988-01-05 Motorola, Inc. Improved multiple site communication system
US4646345A (en) * 1986-06-09 1987-02-24 Motorola, Inc. Automatic unit ID for quasi-transmission trunked systems
US4696027A (en) * 1986-08-01 1987-09-22 Motorola, Inc. Handoff apparatus and method with interference reduction for a radio system

Also Published As

Publication number Publication date
ES2047510T3 (es) 1994-03-01
FI88658B (fi) 1993-02-26
EP0302455A2 (de) 1989-02-08
US5093923A (en) 1992-03-03
ATE96954T1 (de) 1993-11-15
EP0302455A3 (en) 1990-09-05
JP2919839B2 (ja) 1999-07-19
US4941200A (en) 1990-07-10
FI88658C (fi) 1993-06-10
JPS6451730A (en) 1989-02-28
FI883617A (fi) 1989-02-04
HK1004310A1 (en) 1998-11-20
EP0302455B1 (de) 1993-11-03
DE3885369T2 (de) 1994-03-24
FI883617A0 (fi) 1988-08-02

Similar Documents

Publication Publication Date Title
DE3885369D1 (de) Booster-Verstärker.
EP0304890A3 (de) Erdstation für die wirkungsvolle Nutzung des Frequenzbandes eines Satelliten
FI943005A (fi) Menetelmä ja välineet signaalien transmultipleksoimiseksi signaalipäätteiden ja radiotaajuuskanavien välillä
ES2098185A1 (es) Sistemas de radio enlazados de acceso multiple de division de tiempo (tdma).
FI962438A (fi) Radiopuhelintukiasemien lähettimet
HK129796A (en) Mobile radio systems
EP0910179A3 (de) Verfahren und Gerät zür Verstärkung von Mehrkanalsignalen von Raumfahrzeug
DE3876113T2 (de) Tonfrequenzausgangsverstaerker.
YU65688A (en) Device for amplifying electric signals,especially low frequency modulation signals
ATE101463T1 (de) Empfaenger zum gebrauch in einem fernbedienungssystem.
WO1999030438A3 (en) Reception method and receiver
JPS5744310A (en) Televison intermediate frequency amplifying system
JPS56152396A (en) Voice start control system by ear microphone
SU815695A1 (ru) Устройство дл приема радиосигналов
SU705690A1 (ru) Устройство дл контрол необслуживаемого усилительного пункта
DE8916266U1 (de) Leistungsverstärker für Funkfrequenzsignale
SE8601866D0 (sv) Method and device for combining rf transmitters
FR2466155B1 (de)
NO992299L (no) Senderenhet, samt basestasjon
GB2253755B (en) Power amplifying means for R.F signals
DK412185A (da) Fremgangsmaade til sending og modtagelse for relaestationer
FR2423097A1 (fr) Dispositif de transmission electro-acoustique a postes multiples
ATE32153T1 (de) Empfangseinrichtung zum empfang von satellitenrundfunk.
JPS53116057A (en) Automatic cain control system
Dogadin et al. An amplifier with improved efficiency without coil devices.

Legal Events

Date Code Title Description
8380 Miscellaneous part iii

Free format text: DER PATENTINHABER LAUTET RICHTIG: ALLEN TELECOM GROUP, INC., CLEVELAND, OHIO, US

8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: ALLEN TELECOM INC. (N.D.GES.D. STAATES DELAWARE),

8339 Ceased/non-payment of the annual fee