FR1532366A - Système de communication digitale - Google Patents

Système de communication digitale

Info

Publication number
FR1532366A
FR1532366A FR8475A FR06008475A FR1532366A FR 1532366 A FR1532366 A FR 1532366A FR 8475 A FR8475 A FR 8475A FR 06008475 A FR06008475 A FR 06008475A FR 1532366 A FR1532366 A FR 1532366A
Authority
FR
France
Prior art keywords
communication system
digital communication
digital
communication
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
FR8475A
Other languages
English (en)
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of FR1532366A publication Critical patent/FR1532366A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L23/00—Apparatus or local circuits for systems other than those covered by groups H04L15/00 - H04L21/00
    • H04L23/02—Apparatus or local circuits for systems other than those covered by groups H04L15/00 - H04L21/00 adapted for orthogonal signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0022—PN, e.g. Kronecker
    • H04J13/0025—M-sequences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H04J13/18—Allocation of orthogonal codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
FR8475A 1966-06-14 1967-04-25 Système de communication digitale Expired FR1532366A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US55747166A 1966-06-14 1966-06-14

Publications (1)

Publication Number Publication Date
FR1532366A true FR1532366A (fr) 1968-07-12

Family

ID=24225546

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8475A Expired FR1532366A (fr) 1966-06-14 1967-04-25 Système de communication digitale

Country Status (3)

Country Link
US (1) US3518547A (fr)
FR (1) FR1532366A (fr)
GB (1) GB1120975A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988004866A1 (fr) * 1986-12-23 1988-06-30 Messerschmitt-Bölkow-Blohm Gesellschaft Mit Beschr Procede de transmission de donnees par satellite geostationnaire et au moins un satellite secondaire

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715508A (en) * 1967-09-15 1973-02-06 Ibm Switching circuits employing orthogonal and quasi-orthogonal pseudo-random code sequences
US3789149A (en) * 1969-07-30 1974-01-29 Plessey Telecommunications Res Code division multiplex system
US3657718A (en) * 1970-06-29 1972-04-18 Itt Code compression system
NL166592C (nl) * 1970-07-25 1981-08-17 Philips Nv Transmissiestelsel voor informatie-overdracht bij zeer lage signaal-ruisverhoudingen.
US3809817A (en) * 1972-02-14 1974-05-07 Avantek Asynchronous quadriphase communications system and method
JPS5156156A (fr) * 1974-09-17 1976-05-17 Westinghouse Electric Corp
US3979582A (en) * 1974-09-17 1976-09-07 Westinghouse Electric Corporation Discrete analog processing system including a matrix of memory elements
US3908115A (en) * 1974-10-07 1975-09-23 Weston Instruments Inc Adaptively tuned data receiver
US4164628A (en) * 1977-06-06 1979-08-14 International Telephone And Telegraph Corporation Processor for multiple, continuous, spread spectrum signals
US4286333A (en) * 1977-08-27 1981-08-25 E M I Limited Data transmission
US4308617A (en) * 1977-11-07 1981-12-29 The Bendix Corporation Noiselike amplitude and phase modulation coding for spread spectrum transmissions
FR2408951A1 (fr) * 1977-11-09 1979-06-08 Aerospatiale Dispositif pour la transmission d'informations stochastiques
FR2574202B1 (fr) * 1984-11-30 1987-04-24 Cit Alcatel Procede et dispositif de telesignalisation par substitution de message a des donnees acheminees par une liaison de transmission numerique
US5001723A (en) * 1985-11-05 1991-03-19 Allied-Signal Inc. Sinusoidal M-ary orthogonal keyed decoding
DE3825880C1 (de) * 1988-07-29 1995-12-21 Siemens Ag Schlüsseleinrichtung
US5239560A (en) * 1991-06-24 1993-08-24 The United States Of America As Represented By The Secretary Of The Navy Conveying digital data in noisy, unstable, multipath environments
US5412689A (en) * 1992-12-23 1995-05-02 International Business Machines Corporation Modal propagation of information through a defined transmission medium
US5796774A (en) * 1995-02-20 1998-08-18 Canon Kabushiki Kaisha Spread spectrum communication apparatus with conversion of input patterns to uniform spectral patterns
US5960032A (en) * 1995-09-20 1999-09-28 The Hong Kong University Of Science & Technology High speed data transmission using expanded bit durations in multiple parallel coded data streams
US5781583A (en) * 1996-01-19 1998-07-14 Motorola, Inc. Method and system for communication over multiple channels in a spread spectrum communication system
US5910956A (en) * 1996-11-05 1999-06-08 Northrop Gruman Corporation Random time interval generator
US6741636B1 (en) * 2000-06-27 2004-05-25 Lockheed Martin Corporation System and method for converting data into a noise-like waveform
US7606289B2 (en) * 2005-07-29 2009-10-20 Lockheed Martin Corporation Overlaying digital signals on analog wireless communication signals
US8625727B2 (en) 2010-04-02 2014-01-07 Infineon Technologies Ag Demodulator and method for demodulating a carrier signal
US8792846B2 (en) * 2010-04-06 2014-07-29 Infineon Technologies Ag Demodulator and method for demodulating a modulated carrier signal

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3204035A (en) * 1962-11-26 1965-08-31 Arthur H Ballard Orthonormal pulse multiplex transmission systems
US3384715A (en) * 1964-09-17 1968-05-21 Mc Donnell Douglas Corp Multiplex communication systems employing orthogonal hermite waveforms

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988004866A1 (fr) * 1986-12-23 1988-06-30 Messerschmitt-Bölkow-Blohm Gesellschaft Mit Beschr Procede de transmission de donnees par satellite geostationnaire et au moins un satellite secondaire

Also Published As

Publication number Publication date
GB1120975A (en) 1968-07-24
US3518547A (en) 1970-06-30

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