DE3469120D1 - Apparatus for coding and decoding a broad-band transmission - Google Patents

Apparatus for coding and decoding a broad-band transmission

Info

Publication number
DE3469120D1
DE3469120D1 DE8484401504T DE3469120T DE3469120D1 DE 3469120 D1 DE3469120 D1 DE 3469120D1 DE 8484401504 T DE8484401504 T DE 8484401504T DE 3469120 T DE3469120 T DE 3469120T DE 3469120 D1 DE3469120 D1 DE 3469120D1
Authority
DE
Germany
Prior art keywords
decoding
coding
broad
band transmission
band
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
DE8484401504T
Other languages
English (en)
Inventor
Michel Jacques Robert Nicolas
Bruno Roger Sebilet
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.)
Safran Aircraft Engines SAS
Original Assignee
Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
SNECMA SAS
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 Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA, SNECMA SAS filed Critical Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
Application granted granted Critical
Publication of DE3469120D1 publication Critical patent/DE3469120D1/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
DE8484401504T 1983-07-21 1984-07-18 Apparatus for coding and decoding a broad-band transmission Expired DE3469120D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8312043A FR2549663A1 (fr) 1983-07-21 1983-07-21 Procede et dispositif pour le codage et le decodage d'une emission a large bande

Publications (1)

Publication Number Publication Date
DE3469120D1 true DE3469120D1 (en) 1988-03-03

Family

ID=9290989

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484401504T Expired DE3469120D1 (en) 1983-07-21 1984-07-18 Apparatus for coding and decoding a broad-band transmission

Country Status (5)

Country Link
US (1) US4606039A (de)
EP (1) EP0133107B1 (de)
JP (1) JPS6051355A (de)
DE (1) DE3469120D1 (de)
FR (1) FR2549663A1 (de)

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FR2606232B1 (fr) * 1986-10-31 1988-12-02 Neiman Sa Procede de codage evolutif de haute securite et dispositif de mise en oeuvre de ce procede
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FR2612716B1 (fr) * 1987-03-19 1989-05-19 Snecma Procede et dispositif pour le codage et le decodage d'une emission a large bande dite a etalement de spectre
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US5016255A (en) * 1989-08-07 1991-05-14 Omnipoint Data Company, Incorporated Asymmetric spread spectrum correlator
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
US5253268A (en) * 1990-05-24 1993-10-12 Cylink Corporation Method and apparatus for the correlation of sample bits of spread spectrum radio signals
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US6693951B1 (en) 1990-06-25 2004-02-17 Qualcomm Incorporated System and method for generating signal waveforms in a CDMA cellular telephone system
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US5081642A (en) * 1990-08-06 1992-01-14 Omnipoint Data Company, Incorporated Reciprocal saw correlator method and apparatus
WO1992007434A1 (en) * 1990-10-23 1992-04-30 Omnipoint Corporation Method and apparatus for establishing spread spectrum communications
US5535238A (en) 1990-11-16 1996-07-09 Interdigital Technology Corporation Spread spectrum adaptive power control communications system and method
US6873643B2 (en) * 1990-11-16 2005-03-29 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
US5263045A (en) * 1990-12-05 1993-11-16 Interdigital Technology Corporation Spread spectrum conference call system and method
US5506864A (en) * 1990-12-05 1996-04-09 Interdigital Technology Corporation CDMA communications and geolocation system and method
US7020125B2 (en) * 1990-12-05 2006-03-28 Interdigital Technology Corporation Broadband CDMA overlay system and method
US5351269A (en) * 1990-12-05 1994-09-27 Scs Mobilecom, Inc. Overlaying spread spectrum CDMA personal communications system
US5185762A (en) * 1991-05-15 1993-02-09 Scs Mobilecom, Inc. Spread spectrum microwave overlay with notch filter
US5703874A (en) * 1990-12-05 1997-12-30 Interdigital Technology Corporation Broadband CDMA overlay 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
US5274665A (en) * 1990-12-14 1993-12-28 Interdigital Technology Corporation Polyopoly overlapping spread spectrum communication system and method
US5402413A (en) * 1991-04-08 1995-03-28 Omnipoint Corporation Three-cell wireless 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
US5235615A (en) * 1991-05-22 1993-08-10 Cylink Corporation Spread spectrum method
US5164958A (en) * 1991-05-22 1992-11-17 Cylink Corporation Spread spectrum cellular handoff method
US5285469A (en) * 1991-06-03 1994-02-08 Omnipoint Data Corporation Spread spectrum wireless telephone system
US5345467A (en) * 1991-07-10 1994-09-06 Interdigital Technology Corp. CDMA cellular hand-off apparatus and method
US5210770A (en) * 1991-09-27 1993-05-11 Lockheed Missiles & Space Company, Inc. Multiple-signal spread-spectrum transceiver
US5267271A (en) * 1991-09-27 1993-11-30 Lockheed Missiles & Space Company, Inc. Signal analysis technique for determining a subject of binary sequences most likely to have been transmitted in a multi-node communication network
EP0617864B1 (de) * 1991-12-16 2002-02-27 XIRCOM Wireless, Inc. Spreizspektrum-datenveröffentlichungssystem
US5355389A (en) * 1993-01-13 1994-10-11 Omnipoint Corporation Reciprocal mode saw correlator method and apparatus
US5420883A (en) * 1993-05-17 1995-05-30 Hughes Aircraft Company Train location and control using spread spectrum radio communications
JPH06350562A (ja) * 1993-06-08 1994-12-22 Ricoh Co Ltd スペクトル拡散通信方式
WO1995012945A1 (en) * 1993-11-01 1995-05-11 Omnipoint Corporation Despreading/demodulating direct sequence spread spectrum signals
US5832028A (en) * 1994-09-09 1998-11-03 Omnipoint Corporation Method and apparatus for coherent serial correlation of a spread spectrum signal
US5648982A (en) * 1994-09-09 1997-07-15 Omnipoint Corporation Spread spectrum transmitter
US5692007A (en) * 1994-09-09 1997-11-25 Omnipoint Corporation Method and apparatus for differential phase encoding and decoding in spread-spectrum communication systems with continuous-phase modulation
US5629956A (en) * 1994-09-09 1997-05-13 Omnipoint Corporation Method and apparatus for reception and noncoherent serial correlation of a continuous phase modulated signal
US5856998A (en) * 1994-09-09 1999-01-05 Omnipoint Corporation Method and apparatus for correlating a continuous phase modulated spread spectrum signal
US5610940A (en) * 1994-09-09 1997-03-11 Omnipoint Corporation Method and apparatus for noncoherent reception and correlation of a continous phase modulated signal
US5680414A (en) * 1994-09-09 1997-10-21 Omnipoint Corporation Synchronization apparatus and method for spread spectrum receiver
US5627856A (en) * 1994-09-09 1997-05-06 Omnipoint Corporation Method and apparatus for receiving and despreading a continuous phase-modulated spread spectrum signal using self-synchronizing correlators
US5754585A (en) * 1994-09-09 1998-05-19 Omnipoint Corporation Method and apparatus for serial noncoherent correlation of a spread spectrum signal
US5659574A (en) * 1994-09-09 1997-08-19 Omnipoint Corporation Multi-bit correlation of continuous phase modulated signals
US5757847A (en) * 1994-09-09 1998-05-26 Omnipoint Corporation Method and apparatus for decoding a phase encoded signal
US5953370A (en) 1994-09-09 1999-09-14 Omnipoint Corporation Apparatus for receiving and correlating a spread spectrum signal
US5881100A (en) * 1994-09-09 1999-03-09 Omnipoint Corporation Method and apparatus for coherent correlation of a spread spectrum signal
US5754584A (en) * 1994-09-09 1998-05-19 Omnipoint Corporation Non-coherent spread-spectrum continuous-phase modulation communication system
US5963586A (en) * 1994-09-09 1999-10-05 Omnipoint Corporation Method and apparatus for parallel noncoherent correlation of a spread spectrum signal
US5592506A (en) * 1994-10-17 1997-01-07 Cylink Corporation MSK spread-spectrum receiver which allows CDMA operations
US5742583A (en) 1994-11-03 1998-04-21 Omnipoint Corporation Antenna diversity techniques
US5548253A (en) * 1995-04-17 1996-08-20 Omnipoint Corporation Spectrally efficient quadrature amplitude modulator
US5832022A (en) * 1995-06-02 1998-11-03 Omnipoint Corporation Method and apparatus for controlling the modulation index of continuous phase modulated (CPM) signals
US6356607B1 (en) 1995-06-05 2002-03-12 Omnipoint Corporation Preamble code structure and detection method and apparatus
US5745484A (en) * 1995-06-05 1998-04-28 Omnipoint Corporation Efficient communication system using time division multiplexing and timing adjustment control
US6014445A (en) * 1995-10-23 2000-01-11 Kabushiki Kaisha Toshiba Enciphering/deciphering apparatus and method incorporating random variable and keystream generation
US6141373A (en) * 1996-11-15 2000-10-31 Omnipoint Corporation Preamble code structure and detection method and apparatus
US6282228B1 (en) 1997-03-20 2001-08-28 Xircom, Inc. Spread spectrum codes for use in communication
US6324209B1 (en) 2000-02-28 2001-11-27 Golden Bridge Technology Inc. Multi-channel spread spectrum system
US6956891B2 (en) * 2000-11-15 2005-10-18 Go-Cdma Limited Method and apparatus for non-linear code-division multiple access technology
SK11082003A3 (sk) * 2001-03-14 2004-08-03 Bristol-Myers Squibb Company Kombinácia analógov epotilónu a chemoterapeutických činidiel na liečenie proliferatívnych ochorení
EP1427116B1 (de) * 2002-12-04 2018-03-28 Nippon Telegraph And Telephone Corporation Spreizspektrumdemodulator

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DE1549067A1 (de) * 1967-12-18 1971-01-28 Siemens Ag Verfahren zum Erzeugen von binaeren Zahlenreihen
DE2124320C1 (de) * 1971-05-17 1978-04-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Elektrische Schaltung zur Erzeugung einer Vielzahl verschiedener Codes
US4308617A (en) * 1977-11-07 1981-12-29 The Bendix Corporation Noiselike amplitude and phase modulation coding for spread spectrum transmissions
US4341925A (en) * 1978-04-28 1982-07-27 Nasa Random digital encryption secure communication system
JPS55120248A (en) * 1979-03-08 1980-09-16 Nippon Telegr & Teleph Corp <Ntt> Sound signal/control signal simultaneous transmission system
US4450321A (en) * 1981-12-08 1984-05-22 Quigley William D Circuit for producing noise generation for sound masking
GB2111732B (en) * 1981-12-11 1985-02-27 Racal Res Ltd Signal processing arrangements

Also Published As

Publication number Publication date
US4606039A (en) 1986-08-12
JPH0522420B2 (de) 1993-03-29
EP0133107A1 (de) 1985-02-13
JPS6051355A (ja) 1985-03-22
EP0133107B1 (de) 1988-01-27
FR2549663A1 (fr) 1985-01-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee