GB1480367A - Communication system for disseminating coded digital data in analogue form - Google Patents

Communication system for disseminating coded digital data in analogue form

Info

Publication number
GB1480367A
GB1480367A GB49368/74A GB4936874A GB1480367A GB 1480367 A GB1480367 A GB 1480367A GB 49368/74 A GB49368/74 A GB 49368/74A GB 4936874 A GB4936874 A GB 4936874A GB 1480367 A GB1480367 A GB 1480367A
Authority
GB
United Kingdom
Prior art keywords
signal
analogue
data
digital
binary data
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
GB49368/74A
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of GB1480367A publication Critical patent/GB1480367A/en
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
GB49368/74A 1973-11-16 1974-11-14 Communication system for disseminating coded digital data in analogue form Expired GB1480367A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7340880A FR2251960B1 (enExample) 1973-11-16 1973-11-16

Publications (1)

Publication Number Publication Date
GB1480367A true GB1480367A (en) 1977-07-20

Family

ID=9127871

Family Applications (1)

Application Number Title Priority Date Filing Date
GB49368/74A Expired GB1480367A (en) 1973-11-16 1974-11-14 Communication system for disseminating coded digital data in analogue form

Country Status (4)

Country Link
US (1) US4001564A (enExample)
DE (1) DE2454375A1 (enExample)
FR (1) FR2251960B1 (enExample)
GB (1) GB1480367A (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5267201A (en) * 1975-12-01 1977-06-03 Matsushita Electric Ind Co Ltd Station selecting unit
JPS5279747A (en) * 1975-12-26 1977-07-05 Sony Corp Noise removal circuit
US4121295A (en) * 1977-04-07 1978-10-17 Wittronics, Inc. Integer weighted impulse equivalent coded signal processing apparatus
US4227250A (en) * 1978-11-09 1980-10-07 Bell Telephone Laboratories, Incorporated Minimization of excess bandwidth in pulse amplitude modulated data transmission
US4210931A (en) * 1978-12-28 1980-07-01 Discovision Associates Video player and/or recorder with Hadamard transform
IT1119972B (it) * 1979-12-13 1986-03-19 Cselt Centro Studi Lab Telecom Procedimento e dispositivo per la trasmissione di segnali analogici in un sistema di comunicazione a spettro diffuso
IT1119700B (it) * 1979-12-13 1986-03-10 Cselt Centro Studi Lab Telecom Perfezionamenti ai sistemi di comunicazione a spettro diffuso
US4516220A (en) * 1982-08-02 1985-05-07 Motorola, Inc. Pulse deinterleaving signal processor and method
US4797944A (en) * 1986-01-27 1989-01-10 Fuji Photo Film Co., Ltd. Image signal encoding method by orthogonal transformation
US4805030A (en) * 1986-01-27 1989-02-14 Fuji Photo Film Co., Ltd. Method of image signal encoding by orthogonal transformation
NL8700175A (nl) * 1987-01-26 1988-08-16 Philips Nv Werkwijze voor het door middel van codesignalen overdragen van informatie, informatie-overdrachtsysteem voor het uitvoeren van de werkwijze, alsmede een verzend- en ontvangstinrichting voor toepassing in het overdrachtsysteem.
US6278702B1 (en) * 1998-12-02 2001-08-21 Nortel Networks Limited Method for limiting the dynamic range of a CDMA signal
FR2787232B1 (fr) 1998-12-15 2001-02-23 Thomson Csf Disque d'enregistrement optique anti-piratage et procede de lecture d'un tel disque

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3337858A (en) * 1963-11-04 1967-08-22 Massachusetts Inst Technology Storage and retrieval of orthogonally related signals
US3398239A (en) * 1964-05-21 1968-08-20 Itt Multilevel coded communication system employing frequency-expanding code conversion
AU415174B1 (en) * 1967-08-04 1971-07-15 THE COMMONWEALTH OF AUSTRALIA Actual Inventor PJ) PAULO'NEILL GILLARD High density and for high frequency digital recording
US3792355A (en) * 1970-12-11 1974-02-12 Hitachi Ltd Orthogonal transformation circuit using hadamard matrices

Also Published As

Publication number Publication date
FR2251960A1 (enExample) 1975-06-13
DE2454375A1 (de) 1975-05-22
FR2251960B1 (enExample) 1977-08-12
US4001564A (en) 1977-01-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee