DE3484484D1 - Taktgenerator fuer fernsehsignale mit unterdrueckter synchronisierung. - Google Patents

Taktgenerator fuer fernsehsignale mit unterdrueckter synchronisierung.

Info

Publication number
DE3484484D1
DE3484484D1 DE8484303941T DE3484484T DE3484484D1 DE 3484484 D1 DE3484484 D1 DE 3484484D1 DE 8484303941 T DE8484303941 T DE 8484303941T DE 3484484 T DE3484484 T DE 3484484T DE 3484484 D1 DE3484484 D1 DE 3484484D1
Authority
DE
Germany
Prior art keywords
color burst
suppressed
clock generator
television signals
signals
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 - Lifetime
Application number
DE8484303941T
Other languages
English (en)
Inventor
Clyde N Robbins
Luis Morenilla
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.)
Arris Technology Inc
Original Assignee
Arris Technology Inc
General Instrument 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 Arris Technology Inc, General Instrument Corp filed Critical Arris Technology Inc
Application granted granted Critical
Publication of DE3484484D1 publication Critical patent/DE3484484D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/171—Systems operating in the amplitude domain of the television signal
    • H04N7/1713—Systems operating in the amplitude domain of the television signal by modifying synchronisation signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Synchronizing For Television (AREA)
  • Processing Of Color Television Signals (AREA)
  • Television Signal Processing For Recording (AREA)
  • Color Television Systems (AREA)
DE8484303941T 1983-06-10 1984-06-11 Taktgenerator fuer fernsehsignale mit unterdrueckter synchronisierung. Expired - Lifetime DE3484484D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/502,933 US4571615A (en) 1983-06-10 1983-06-10 Timing generator for sync suppressed television signals

Publications (1)

Publication Number Publication Date
DE3484484D1 true DE3484484D1 (de) 1991-05-29

Family

ID=24000030

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484303941T Expired - Lifetime DE3484484D1 (de) 1983-06-10 1984-06-11 Taktgenerator fuer fernsehsignale mit unterdrueckter synchronisierung.

Country Status (10)

Country Link
US (1) US4571615A (de)
EP (1) EP0128771B1 (de)
JP (1) JPS6019381A (de)
AT (1) ATE63026T1 (de)
AU (1) AU564501B2 (de)
CA (1) CA1218143A (de)
DE (1) DE3484484D1 (de)
IE (1) IE57016B1 (de)
MX (1) MX157762A (de)
NZ (1) NZ208427A (de)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4817142A (en) * 1985-05-21 1989-03-28 Scientific Atlanta, Inc. Restoring framing in a communications system
US4901351A (en) * 1987-09-07 1990-02-13 Kabushiki Kaisha Toshiba Video signal scramble system
US4920566A (en) * 1989-02-01 1990-04-24 General Instrument Corporation Dual loop sinewave descrambler and method of descrambling
US4928309A (en) * 1989-03-31 1990-05-22 General Instrument Corporation Method and apparatus for descrambling a television signal
JP2810103B2 (ja) * 1989-04-28 1998-10-15 パイオニア株式会社 テレビジョン信号のスクランブル方法
CA2020313C (en) * 1989-07-21 1996-06-11 Ralph P. Harney Universal decoder
US5442700A (en) * 1990-09-28 1995-08-15 Ictv, Inc. Scrambling method
US5173775A (en) * 1991-05-02 1992-12-22 General Instrument Corporation Reformatting of television signal data for transmission using a different modulation scheme
EP0518128A3 (en) * 1991-06-13 1993-03-17 General Instrument Corporation Method and apparatus for frustrating vertical interval detection in scrambled television signals
US5146496A (en) * 1991-06-13 1992-09-08 General Instrument Corporation Method and apparatus for enhancing the security of a scrambled television signal
PL180475B1 (pl) * 1995-05-09 2001-02-28 Macrovision Corp Sposób i urzadzenie do usuwania modyfikacji, zwlaszcza zaklócen barwnych, wprowadzonej do sygnalu wizyjnego PL PL PL PL PL PL PL
US6327422B1 (en) * 1997-07-18 2001-12-04 Macrovision Corp Method and apparatus for modifying the effects of color burst modifications to a video signal
KR100489145B1 (ko) * 1995-10-17 2005-09-14 매크로비젼 코포레이션 비디오신호로부터비디오복사방지신호들의영향들을디지탈적으로제거하기위한방법및장치
US6529248B1 (en) * 2000-03-29 2003-03-04 Zilog, Inc. Method and apparatus for improved signal restoration
US7526103B2 (en) * 2004-04-15 2009-04-28 Donnelly Corporation Imaging system for vehicle
US8074248B2 (en) 2005-07-26 2011-12-06 Activevideo Networks, Inc. System and method for providing video content associated with a source image to a television in a communication network
US9826197B2 (en) 2007-01-12 2017-11-21 Activevideo Networks, Inc. Providing television broadcasts over a managed network and interactive content over an unmanaged network to a client device
WO2008088741A2 (en) 2007-01-12 2008-07-24 Ictv, Inc. Interactive encoded content system including object models for viewing on a remote device
AU2011315950B2 (en) 2010-10-14 2015-09-03 Activevideo Networks, Inc. Streaming digital video between video devices using a cable television system
WO2012138660A2 (en) 2011-04-07 2012-10-11 Activevideo Networks, Inc. Reduction of latency in video distribution networks using adaptive bit rates
EP2815582B1 (de) 2012-01-09 2019-09-04 ActiveVideo Networks, Inc. Wiedergabe einer interaktiven vereinfachten benutzerschnittstelle auf einem fernsehgerät
US9800945B2 (en) 2012-04-03 2017-10-24 Activevideo Networks, Inc. Class-based intelligent multiplexing over unmanaged networks
US9123084B2 (en) 2012-04-12 2015-09-01 Activevideo Networks, Inc. Graphical application integration with MPEG objects
WO2014145921A1 (en) 2013-03-15 2014-09-18 Activevideo Networks, Inc. A multiple-mode system and method for providing user selectable video content
EP3005712A1 (de) 2013-06-06 2016-04-13 ActiveVideo Networks, Inc. Überlagerte darstellung einer benutzerschnittstelle auf quellvideoinhalten
US9219922B2 (en) 2013-06-06 2015-12-22 Activevideo Networks, Inc. System and method for exploiting scene graph information in construction of an encoded video sequence
US9294785B2 (en) 2013-06-06 2016-03-22 Activevideo Networks, Inc. System and method for exploiting scene graph information in construction of an encoded video sequence
US9788029B2 (en) 2014-04-25 2017-10-10 Activevideo Networks, Inc. Intelligent multiplexing using class-based, multi-dimensioned decision logic for managed networks

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4319273A (en) * 1979-10-26 1982-03-09 Rca Corporation Television signal with encoded synchronizing signals
CA1150821A (en) * 1981-03-19 1983-07-26 Northern Telecom Limited Transmission of data with a video signal
CA1153103A (en) * 1981-03-19 1983-08-30 Northern Telecom Limited Scrambling and unscrambling video signals in a pay tv system

Also Published As

Publication number Publication date
NZ208427A (en) 1987-07-31
EP0128771A2 (de) 1984-12-19
JPS6019381A (ja) 1985-01-31
MX157762A (es) 1988-12-13
EP0128771B1 (de) 1991-04-24
IE57016B1 (en) 1992-03-11
EP0128771A3 (en) 1986-09-03
ATE63026T1 (de) 1991-05-15
IE841446L (en) 1984-12-10
AU2931284A (en) 1984-12-13
CA1218143A (en) 1987-02-17
US4571615A (en) 1986-02-18
AU564501B2 (en) 1987-08-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: GENERAL INSTRUMENT CORP. (N.D.GES.D. STAATES DELAW

8339 Ceased/non-payment of the annual fee