DE3367145D1 - Frequency-hopped single sideband mobile radio system - Google Patents

Frequency-hopped single sideband mobile radio system

Info

Publication number
DE3367145D1
DE3367145D1 DE8383901055T DE3367145T DE3367145D1 DE 3367145 D1 DE3367145 D1 DE 3367145D1 DE 8383901055 T DE8383901055 T DE 8383901055T DE 3367145 T DE3367145 T DE 3367145T DE 3367145 D1 DE3367145 D1 DE 3367145D1
Authority
DE
Germany
Prior art keywords
frequency
mobile radio
radio system
single sideband
hopped
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
DE8383901055T
Other languages
English (en)
Inventor
Vasant Krishna Prabhu
Raymond Steele
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.)
AT&T Corp
Original Assignee
Western Electric Co 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 Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of DE3367145D1 publication Critical patent/DE3367145D1/de
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/68Details 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 for wholly or partially suppressing the carrier or one side band
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • H04B7/2634Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] for channel frequency control
DE8383901055T 1982-03-29 1983-02-28 Frequency-hopped single sideband mobile radio system Expired DE3367145D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/363,273 US4479226A (en) 1982-03-29 1982-03-29 Frequency-hopped single sideband mobile radio system
PCT/US1983/000264 WO1983003505A1 (en) 1982-03-29 1983-02-28 Frequency-hopped single sideband mobile radio system

Publications (1)

Publication Number Publication Date
DE3367145D1 true DE3367145D1 (en) 1986-11-27

Family

ID=23429563

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383901055T Expired DE3367145D1 (en) 1982-03-29 1983-02-28 Frequency-hopped single sideband mobile radio system

Country Status (6)

Country Link
US (1) US4479226A (de)
EP (1) EP0104206B1 (de)
CA (1) CA1199682A (de)
DE (1) DE3367145D1 (de)
GB (1) GB2118401B (de)
WO (1) WO1983003505A1 (de)

Families Citing this family (142)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518338A1 (fr) * 1981-12-15 1983-06-17 Thomson Csf Procede de synchronisation des postes emetteurs-recepteurs d'un reseau a sauts de frequence et poste destine a la mise en oeuvre de ce procede
FR2518337A1 (fr) * 1981-12-15 1983-06-17 Thomson Csf Procede d'etablissement des communications dans un reseau de postes emetteurs-recepteurs a sauts de frequence et poste destine a la mise en oeuvre de ce procede
US4553101A (en) * 1983-09-21 1985-11-12 General Dynamis Electronics Division Fast frequency hopping demodulation system with serial accumulation of signal
GB2277231B (en) * 1984-05-12 1995-03-15 Racal Res Ltd Communications system
ATE47948T1 (de) * 1984-07-13 1989-11-15 Motorola Inc Cellulares stimme- und datenfunkfernuebertragungssystem.
GB2171576B (en) * 1985-02-04 1989-07-12 Mitel Telecom Ltd Spread spectrum leaky feeder communication system
US4638493A (en) * 1985-06-17 1987-01-20 Sperry Corporation Adaptive interference rejection for improved frequency hop detection
US4654859A (en) * 1986-04-09 1987-03-31 Racal Data Communications Inc. Frequency synthesizer for frequency hopping communication system
US5177604A (en) * 1986-05-14 1993-01-05 Radio Telcom & Technology, Inc. Interactive television and data transmission system
GB2229064B (en) * 1987-06-11 1990-12-12 Software Sciences Limited An area communications system
US4850036A (en) * 1987-08-21 1989-07-18 American Telephone And Telegraph Company Radio communication system using synchronous frequency hopping transmissions
US4872205A (en) * 1987-08-21 1989-10-03 American Telephone And Telegraph Company Radio communication system having autonomously selected transmission frequencies
US4998290A (en) * 1988-05-09 1991-03-05 Canadian Marconi Corporation Frequency-hopping radio communication network
GB8814176D0 (en) * 1988-06-15 1988-07-20 Marconi Gec Ltd Communication systems
CH676179A5 (de) * 1988-09-29 1990-12-14 Ascom Zelcom Ag
US5257398A (en) * 1990-02-27 1993-10-26 Motorola, Inc. Hopped-carrier dynamic frequency reuse
US5130987A (en) * 1990-03-23 1992-07-14 Metricom, Inc. Method for synchronizing a wide area network without global synchronizing
US5079768A (en) * 1990-03-23 1992-01-07 Metricom, Inc. Method for frequency sharing in frequency hopping communications network
US5159631A (en) * 1990-04-26 1992-10-27 Macrovision Corporation Audio scrambling system using in-band carrier
US5253268A (en) * 1990-05-24 1993-10-12 Cylink Corporation Method and apparatus for the correlation of sample bits of spread spectrum radio signals
US5157686A (en) * 1990-05-24 1992-10-20 Cylink Corporation Method and apparatus for the modulation of spread spectrum radio signals
US5166952A (en) * 1990-05-24 1992-11-24 Cylink Corporation Method and apparatus for the reception and demodulation of spread spectrum radio signals
US5142534A (en) * 1990-10-17 1992-08-25 O'neill Communications, Inc. Wireless integrated voice-data communication system
US6873643B2 (en) * 1990-11-16 2005-03-29 Interdigital Technology Corporation Spread spectrum adaptive power control communications system and method
US5535238A (en) 1990-11-16 1996-07-09 Interdigital Technology Corporation Spread spectrum adaptive power control communications system and method
US5299226A (en) * 1990-11-16 1994-03-29 Interdigital Technology Corporation Adaptive power control for a spread spectrum communications system and method
US7020125B2 (en) * 1990-12-05 2006-03-28 Interdigital Technology Corporation Broadband CDMA overlay system and method
US5703874A (en) 1990-12-05 1997-12-30 Interdigital Technology Corporation Broadband CDMA overlay system and method
US5506864A (en) 1990-12-05 1996-04-09 Interdigital Technology Corporation CDMA communications and geolocation system and method
US5228056A (en) * 1990-12-14 1993-07-13 Interdigital Technology Corporation Synchronous spread-spectrum communications system and method
US5161168A (en) * 1991-05-15 1992-11-03 Scs Mobilecom, Inc. Spread spectrum CDMA communications system microwave overlay
US5185762A (en) * 1991-05-15 1993-02-09 Scs Mobilecom, Inc. Spread spectrum microwave overlay with notch filter
US5263045A (en) * 1990-12-05 1993-11-16 Interdigital Technology Corporation Spread spectrum conference call system and method
US5351269A (en) * 1990-12-05 1994-09-27 Scs Mobilecom, Inc. Overlaying spread spectrum CDMA personal communications system
US5274665A (en) * 1990-12-14 1993-12-28 Interdigital Technology Corporation Polyopoly overlapping spread spectrum communication system and method
US5642397A (en) * 1991-05-01 1997-06-24 Alonzo Williams Paging system which combines a paging signal with a standard broadcast baseband signal
US5790587A (en) * 1991-05-13 1998-08-04 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5815525A (en) * 1991-05-13 1998-09-29 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5694414A (en) * 1991-05-13 1997-12-02 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5796772A (en) * 1991-05-13 1998-08-18 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5887020A (en) * 1991-05-13 1999-03-23 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5166951A (en) * 1991-05-15 1992-11-24 Scs Mobilecom, Inc. High capacity spread spectrum channel
USRE38627E1 (en) * 1991-05-15 2004-10-19 Interdigital Technology Corp. High capacity spread spectrum channel
US5228053A (en) * 1991-05-15 1993-07-13 Interdigital Technology Corporation Spread spectrum cellular overlay CDMA communications system
US5164958A (en) * 1991-05-22 1992-11-17 Cylink Corporation Spread spectrum cellular handoff method
US5235615A (en) * 1991-05-22 1993-08-10 Cylink Corporation Spread spectrum method
US5285469A (en) 1991-06-03 1994-02-08 Omnipoint Data Corporation Spread spectrum wireless telephone system
US5387941A (en) * 1991-06-14 1995-02-07 Wavephore, Inc. Data with video transmitter
US5831679A (en) * 1991-06-14 1998-11-03 Wavephore, Inc. Network for retrieval and video transmission of information
US5327237A (en) * 1991-06-14 1994-07-05 Wavephore, Inc. Transmitting data with video
US5617148A (en) * 1991-06-14 1997-04-01 Wavephore, Inc. Filter by-pass for transmitting an additional signal with a video signal
US5559559A (en) * 1991-06-14 1996-09-24 Wavephore, Inc. Transmitting a secondary signal with dynamic injection level control
US5410360A (en) * 1991-06-14 1995-04-25 Wavephore, Inc. Timing control for injecting a burst and data into a video signal
US5345467A (en) * 1991-07-10 1994-09-06 Interdigital Technology Corp. CDMA cellular hand-off apparatus and method
IL100029A (en) * 1991-11-11 1994-02-27 Motorola Inc Method and apparatus for improving detection of data bits in a slow frequency hopping communication system
ATE213887T1 (de) * 1991-12-16 2002-03-15 Xircom Wireless Inc Spreizspektrum-datenveröffentlichungssystem
IL103620A0 (en) * 1992-11-03 1993-04-04 Rafael Armament Dev Authority Spread-spectrum,frequency-hopping radiotelephone system
SE470078B (sv) * 1992-03-27 1993-11-01 Ericsson Telefon Ab L M Basstation för cellindelade frekvenshoppande TDMA- radiokommunikationssystem
US5678189A (en) * 1992-03-28 1997-10-14 Motorola, Inc. Communications system and communications unit for communicating over a base set of channels and an extended set of channels
GB2265521A (en) * 1992-03-28 1993-09-29 Motorola Ltd Communications system with extended channels
DE4213881A1 (de) * 1992-04-28 1993-11-04 Bosch Gmbh Robert System zur bidirektionalen datenuebertragung zwischen einer bake und einem fahrzeug
DE4213879A1 (de) * 1992-04-28 1993-11-04 Bosch Gmbh Robert Kommunikationssystem zur datenuebertragung von einem bewegten fahrzeug auf eine ortsfeste bake
DE4213882A1 (de) * 1992-04-28 1993-11-04 Bosch Gmbh Robert Vorrichtung eines fahrzeugs zur datenuebertragung auf eine ortsfeste bake und damit gebildetes kommunikationssystem
FI97838C (fi) * 1992-05-06 1997-02-25 Nokia Telecommunications Oy Solukkoverkkojärjestelmä
US5224121A (en) * 1992-06-04 1993-06-29 Motorola, Inc. Rolling synthesizer method for baseband slow frequency hopping
US5430759A (en) * 1992-08-20 1995-07-04 Nexus 1994 Limited Low-power frequency-hopped spread spectrum reverse paging system
DE4335480C2 (de) * 1992-11-02 1996-07-11 Motorola Inc Verfahren zum Wegnehmen von Frequenzzuweisungen in einem Frequenzsprung-Kommunikationssystem und Vorrichtung zum Durchführen des Verfahrens
US5459759A (en) * 1993-02-17 1995-10-17 Interdigital Technology Corporation Frequency hopping code division multiple access system and method
US7142582B2 (en) * 1993-02-17 2006-11-28 Interdigital Technology Corporation Receiving and selectively transmitting frequency hopped data signals using a plurality of antennas
US6088590A (en) * 1993-11-01 2000-07-11 Omnipoint Corporation Method and system for mobile controlled handoff and link maintenance in spread spectrum communication
US6094575A (en) * 1993-11-01 2000-07-25 Omnipoint Corporation Communication system and method
US5436941A (en) * 1993-11-01 1995-07-25 Omnipoint Corporation Spread spectrum spectral density techniques
US6005856A (en) * 1993-11-01 1999-12-21 Omnipoint Corporation Communication protocol for spread spectrum wireless communication system
US5598471A (en) * 1993-11-16 1997-01-28 South African Microelectronic Systems Ltd. Method and apparatus for encoding and decoding of audio transmission signals
SE503893C2 (sv) * 1994-07-15 1996-09-30 Ericsson Telefon Ab L M Förfarande och anordning för frekvenshoppning i ett radiokommunikationssystem
US20070064771A1 (en) * 1994-08-29 2007-03-22 Interdigital Technology Corporation Receiving and selectively transmitting frequency hopped data signals using a plurality of antennas
US5784403A (en) * 1995-02-03 1998-07-21 Omnipoint Corporation Spread spectrum correlation using saw device
FI102440B1 (fi) * 1995-12-29 1998-11-30 Nokia Telecommunications Oy Monihaarainen taajuushyppelevä vastaanotin
US6006075A (en) * 1996-06-18 1999-12-21 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for transmitting communication signals using transmission space diversity and frequency diversity
US5898728A (en) * 1996-11-22 1999-04-27 Trw Inc. Distributed analog-digital frequency dehopping system
US5955992A (en) * 1998-02-12 1999-09-21 Shattil; Steve J. Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitter
DE19826253A1 (de) * 1998-06-15 1999-12-16 Abb Patent Gmbh Verfahren zur bandbreiteneffizienten Mehrfrequenz-Datenübertragung
US6091940A (en) * 1998-10-21 2000-07-18 Parkervision, Inc. Method and system for frequency up-conversion
US6061551A (en) * 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US7515896B1 (en) 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6061555A (en) * 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
US6049706A (en) * 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6813485B2 (en) 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US7295826B1 (en) 1998-10-21 2007-11-13 Parkervision, Inc. Integrated frequency translation and selectivity with gain control functionality, and applications thereof
KR100283193B1 (ko) * 1998-12-30 2001-03-02 박태진 실시간 복조 가능한 주파수 도약 수신 장치 및방법
US7006805B1 (en) 1999-01-22 2006-02-28 Parker Vision, Inc. Aliasing communication system with multi-mode and multi-band functionality and embodiments thereof, such as the family radio service
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US6947469B2 (en) 1999-05-07 2005-09-20 Intel Corporation Method and Apparatus for wireless spread spectrum communication with preamble processing period
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US7072390B1 (en) 1999-08-04 2006-07-04 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US8670390B2 (en) 2000-11-22 2014-03-11 Genghiscomm Holdings, LLC Cooperative beam-forming in wireless networks
US6856797B2 (en) * 2000-12-28 2005-02-15 Siemens Communications, Inc. Programmable radio receiver bandpass filter for cordless/wireless systems
US7312237B2 (en) * 2001-03-14 2007-12-25 Bristol-Myers Squibb Co. Combination of epothilone analogs and chemotherapeutic agents for the treatment of prolilferative diseases
US7227855B1 (en) * 2001-03-20 2007-06-05 Arraycomm Llc Resource allocation in a wireless network
US7424002B2 (en) * 2001-03-20 2008-09-09 Arraycomm, Llc Resource allocation in a wireless network
US9819449B2 (en) 2002-05-14 2017-11-14 Genghiscomm Holdings, LLC Cooperative subspace demultiplexing in content delivery networks
US10355720B2 (en) 2001-04-26 2019-07-16 Genghiscomm Holdings, LLC Distributed software-defined radio
US10931338B2 (en) 2001-04-26 2021-02-23 Genghiscomm Holdings, LLC Coordinated multipoint systems
US6582105B1 (en) * 2001-08-02 2003-06-24 The Will-Burt Company Extendable mast arrangement having a coded remote control system
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US10200227B2 (en) 2002-05-14 2019-02-05 Genghiscomm Holdings, LLC Pre-coding in multi-user MIMO
US9628231B2 (en) 2002-05-14 2017-04-18 Genghiscomm Holdings, LLC Spreading and precoding in OFDM
US10142082B1 (en) 2002-05-14 2018-11-27 Genghiscomm Holdings, LLC Pre-coding in OFDM
US10644916B1 (en) 2002-05-14 2020-05-05 Genghiscomm Holdings, LLC Spreading and precoding in OFDM
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
AU2003904339A0 (en) * 2003-08-04 2003-08-28 Barrett Communications Pty Ltd Method and system for synchronising stations within communications networks and stations for use therein
US7844451B2 (en) * 2003-09-16 2010-11-30 Panasonic Corporation Spectrum coding/decoding apparatus and method for reducing distortion of two band spectrums
US11381285B1 (en) 2004-08-02 2022-07-05 Genghiscomm Holdings, LLC Transmit pre-coding
US11184037B1 (en) 2004-08-02 2021-11-23 Genghiscomm Holdings, LLC Demodulating and decoding carrier interferometry signals
US11552737B1 (en) 2004-08-02 2023-01-10 Genghiscomm Holdings, LLC Cooperative MIMO
TWI266497B (en) * 2004-11-15 2006-11-11 Chung Shan Inst Of Science Device and method of defining symbol timing window for capturing signal
US7848517B2 (en) 2005-03-16 2010-12-07 At&T Intellectual Property Ii, L.P. Secure open-air communication system utilizing multi-channel decoyed transmission
WO2006105047A2 (en) * 2005-03-25 2006-10-05 Nokia Corporation Method and apparatus for co-channel interference reduction in single-sideband ofdm transmissions
EP2180757B1 (de) * 2007-08-10 2016-02-10 Alcatel Lucent Verfahren zum vergeben eines betriebsmittels eines mobilbenutzers und eine solche richtlinie verwendender betriebsmittel vergebender dispatcher
US20090060001A1 (en) * 2007-08-27 2009-03-05 Waltho Alan E Cognitive frequency hopping radio
US10243773B1 (en) 2017-06-30 2019-03-26 Genghiscomm Holdings, LLC Efficient peak-to-average-power reduction for OFDM and MIMO-OFDM
US10637705B1 (en) 2017-05-25 2020-04-28 Genghiscomm Holdings, LLC Peak-to-average-power reduction for OFDM multiple access
EP3508836B1 (de) * 2018-01-05 2020-07-29 Infineon Technologies AG Photoakustisches system und verfahren zur abschätzung einer gaskonzentration
US11343823B2 (en) 2020-08-16 2022-05-24 Tybalt, Llc Orthogonal multiple access and non-orthogonal multiple access
US11917604B2 (en) 2019-01-25 2024-02-27 Tybalt, Llc Orthogonal multiple access and non-orthogonal multiple access
CN113454964A (zh) 2019-01-25 2021-09-28 珍吉斯科姆控股有限责任公司 正交多址和非正交多址
WO2020242898A1 (en) 2019-05-26 2020-12-03 Genghiscomm Holdings, LLC Non-orthogonal multiple access

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1332101A (de) * 1963-12-16
GB465120A (en) * 1934-10-30 1937-04-30 Siemens Ag Improvements in and relating to carrier signalling systems
GB624295A (en) * 1946-08-20 1949-06-01 Western Electric Co Improvements in or relating to electric secret signalling systems
US4176316A (en) * 1953-03-30 1979-11-27 International Telephone & Telegraph Corp. Secure single sideband communication system using modulated noise subcarrier
US4184117A (en) * 1956-04-16 1980-01-15 The United States Of America As Represented By The Secretary Of The Army Communication security method and system
FR1278172A (fr) * 1960-10-28 1961-12-08 Cie Ind Des Telephones Dispositif électronique de codage pour liaisons radioélectriques ou téléphoniques
US4066964A (en) * 1967-01-06 1978-01-03 Rockwell International Corporation Communication system
US4193030A (en) * 1968-08-01 1980-03-11 International Telephone And Telegraph Corporation Frequency hopping communication system
US4019140A (en) * 1975-10-24 1977-04-19 Bell Telephone Laboratories, Incorporated Methods and apparatus for reducing intelligible crosstalk in single sideband radio systems
US4222115A (en) * 1978-03-13 1980-09-09 Purdue Research Foundation Spread spectrum apparatus for cellular mobile communication systems
US4276652A (en) * 1978-10-02 1981-06-30 Technical Communications Corp. Secure communication system with improved frequency-hopping arrangement
GB2071464B (en) * 1980-03-08 1984-05-31 Gott G F Doany P Communication systems

Also Published As

Publication number Publication date
GB8308159D0 (en) 1983-05-05
GB2118401B (en) 1986-07-30
CA1199682A (en) 1986-01-21
GB2118401A (en) 1983-10-26
WO1983003505A1 (en) 1983-10-13
US4479226A (en) 1984-10-23
EP0104206B1 (de) 1986-10-22
EP0104206A1 (de) 1984-04-04

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