DE69000257D1 - Dekoder zum dekodieren eines verschluesselten fernsehaudiosignals. - Google Patents

Dekoder zum dekodieren eines verschluesselten fernsehaudiosignals.

Info

Publication number
DE69000257D1
DE69000257D1 DE9090402682T DE69000257T DE69000257D1 DE 69000257 D1 DE69000257 D1 DE 69000257D1 DE 9090402682 T DE9090402682 T DE 9090402682T DE 69000257 T DE69000257 T DE 69000257T DE 69000257 D1 DE69000257 D1 DE 69000257D1
Authority
DE
Germany
Prior art keywords
decoder
decoding
audio signal
television audio
encrypted television
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
DE9090402682T
Other languages
English (en)
Other versions
DE69000257T2 (de
Inventor
Van Suu Maurice Le
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.)
STMicroelectronics SA
Original Assignee
SGS Thomson Microelectronics 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 SGS Thomson Microelectronics SA filed Critical SGS Thomson Microelectronics SA
Publication of DE69000257D1 publication Critical patent/DE69000257D1/de
Application granted granted Critical
Publication of DE69000257T2 publication Critical patent/DE69000257T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/003—Secret communication by varying carrier frequency at or within predetermined or random intervals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Receiver Circuits (AREA)
DE9090402682T 1989-10-02 1990-09-28 Dekoder zum dekodieren eines verschluesselten fernsehaudiosignals. Expired - Fee Related DE69000257T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8912844A FR2652698A1 (fr) 1989-10-02 1989-10-02 Decodeur pour decoder un son crypte.

Publications (2)

Publication Number Publication Date
DE69000257D1 true DE69000257D1 (de) 1992-09-17
DE69000257T2 DE69000257T2 (de) 1993-04-08

Family

ID=9385999

Family Applications (1)

Application Number Title Priority Date Filing Date
DE9090402682T Expired - Fee Related DE69000257T2 (de) 1989-10-02 1990-09-28 Dekoder zum dekodieren eines verschluesselten fernsehaudiosignals.

Country Status (5)

Country Link
US (1) US5144666A (de)
EP (1) EP0424201B1 (de)
JP (1) JPH03158033A (de)
DE (1) DE69000257T2 (de)
FR (1) FR2652698A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2690766B1 (fr) * 1992-04-30 1994-07-01 Sgs Thomson Microelectronics Interface programmable notamment pour la commande d'installations domestiques.
FR2691317B1 (fr) * 1992-05-15 1995-05-19 Sgs Thomson Microelectronics Procédé d'adressage automatique dans une installation, notamment une installation domestique.
FR2704663B1 (fr) * 1993-04-29 1995-06-23 Sgs Thomson Microelectronics Procédé et dispositif de détermination de la composition d'un circuit intégré.
US5471531A (en) * 1993-12-14 1995-11-28 Macrovision Corporation Method and apparatus for low cost audio scrambling and descrambling
FR2720576B1 (fr) * 1994-05-24 1996-06-21 Sgs Thomson Microelectronics Interface compatible pour installation de commande d'appareils domestiques industriels et professionnels.
FR2720527B1 (fr) * 1994-05-31 1996-07-12 Sgs Thomson Microelectronics Procédé de commande d'appareils domotiques groupés.
US6272226B1 (en) 1997-04-02 2001-08-07 Scientific-Atlanta, Inc. Apparatus and method for masking audio signals in a signal distribution system
AU9628498A (en) * 1997-10-15 1999-05-03 Sennheiser Electronic Gmbh & Co. Kg Sound-reproducing device mountable on the body of a user
US6363449B1 (en) 1999-03-29 2002-03-26 Compaq Information Technologies Group, L.P. Method and apparatus for providing interchassis communication and management
US6463495B1 (en) 1999-03-29 2002-10-08 Compaq Information Technologies Group, L.P. Command and control infrastructure for a computer system using the computer's power rail
US6502203B2 (en) 1999-04-16 2002-12-31 Compaq Information Technologies Group, L.P. Method and apparatus for cluster system operation
FR3054349B1 (fr) 2016-07-21 2019-06-07 Ingenico Group Procede de traitement de donnees par un dispositif electronique d'acquisition de donnees, dispositif et programme correspondant

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2203218B1 (de) * 1972-10-12 1975-03-14 Lepaute Cie Gle Elec Ind
US4148063A (en) * 1977-04-28 1979-04-03 Teleglobe Pay-Tv System, Inc. Method and apparatus for encoding audio signals in television systems
US4166984A (en) * 1978-05-25 1979-09-04 Rockwell International Corporation Restricted rate of change phase lock loop apparatus
FR2520955B1 (fr) * 1982-01-29 1987-11-13 Radiotechnique Systeme electronique de transmission secrete de signaux audio
JPS6037824A (ja) * 1983-08-09 1985-02-27 Fujitsu Ltd Ｐｌｌ回路
FR2580885B1 (fr) * 1985-04-19 1988-07-08 Radiotechnique Systeme pour la transmission secrete de signaux audio, et televiseur pour la reception de tels signaux
FR2624674A1 (fr) * 1987-12-15 1989-06-16 Thomson Csf Procede et dispositif de modulation-demodulation d'amplitude coherente

Also Published As

Publication number Publication date
EP0424201A1 (de) 1991-04-24
EP0424201B1 (de) 1992-08-12
US5144666A (en) 1992-09-01
DE69000257T2 (de) 1993-04-08
JPH03158033A (ja) 1991-07-08
FR2652698A1 (fr) 1991-04-05

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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