MX157762A - Mejoras en circuito descodificador para recuperar senales cronometricas de una senal de video - Google Patents

Mejoras en circuito descodificador para recuperar senales cronometricas de una senal de video

Info

Publication number
MX157762A
MX157762A MX201587A MX20158784A MX157762A MX 157762 A MX157762 A MX 157762A MX 201587 A MX201587 A MX 201587A MX 20158784 A MX20158784 A MX 20158784A MX 157762 A MX157762 A MX 157762A
Authority
MX
Mexico
Prior art keywords
signals
color burst
timeline
recover
video signal
Prior art date
Application number
MX201587A
Other languages
English (en)
Inventor
Clyde N Robbins
Luis Morenilla
Original Assignee
Gen 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 Gen Instrument Corp filed Critical Gen Instrument Corp
Publication of MX157762A publication Critical patent/MX157762A/es

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)
  • Color Television Systems (AREA)
  • Television Signal Processing For Recording (AREA)
  • Processing Of Color Television Signals (AREA)
MX201587A 1983-06-10 1984-06-08 Mejoras en circuito descodificador para recuperar senales cronometricas de una senal de video MX157762A (es)

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
MX157762A true MX157762A (es) 1988-12-13

Family

ID=24000030

Family Applications (1)

Application Number Title Priority Date Filing Date
MX201587A MX157762A (es) 1983-06-10 1984-06-08 Mejoras en circuito descodificador para recuperar senales cronometricas de una senal de video

Country Status (10)

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

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
CA1292056C (en) * 1987-09-07 1991-11-12 Masatoshi Tanaka Video signal scrambling 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
US5146496A (en) * 1991-06-13 1992-09-08 General Instrument Corporation Method and apparatus for enhancing the security of a scrambled television signal
EP0518128A3 (en) * 1991-06-13 1993-03-17 General Instrument Corporation Method and apparatus for frustrating vertical interval detection in scrambled television signals
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
EP0824825B1 (en) * 1995-05-09 2001-10-17 Macrovision Corporation Method and apparatus for defeating effects of color burst modifications to a video signal
CA2234971C (en) * 1995-10-17 2001-08-07 Macrovision Corporation Method and apparatus for removing or defeating effects of copy protection signals from a video signal
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
EP3145200A1 (en) 2007-01-12 2017-03-22 ActiveVideo Networks, Inc. Mpeg objects and systems and methods for using mpeg objects
CA2814070A1 (en) 2010-10-14 2012-04-19 Activevideo Networks, Inc. Streaming digital video between video devices using a cable television system
US9204203B2 (en) 2011-04-07 2015-12-01 Activevideo Networks, Inc. Reduction of latency in video distribution networks using adaptive bit rates
WO2013106390A1 (en) 2012-01-09 2013-07-18 Activevideo Networks, Inc. Rendering of an interactive lean-backward user interface on a television
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
US10275128B2 (en) 2013-03-15 2019-04-30 Activevideo Networks, Inc. Multiple-mode system and method for providing user selectable video content
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
EP3005712A1 (en) 2013-06-06 2016-04-13 ActiveVideo Networks, Inc. Overlay rendering of user interface onto source video
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
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
CA1153103A (en) * 1981-03-19 1983-08-30 Northern Telecom Limited Scrambling and unscrambling video signals in a pay tv system
CA1150821A (en) * 1981-03-19 1983-07-26 Northern Telecom Limited Transmission of data with a video signal

Also Published As

Publication number Publication date
IE57016B1 (en) 1992-03-11
AU2931284A (en) 1984-12-13
EP0128771A2 (en) 1984-12-19
AU564501B2 (en) 1987-08-13
CA1218143A (en) 1987-02-17
ATE63026T1 (de) 1991-05-15
IE841446L (en) 1984-12-10
EP0128771A3 (en) 1986-09-03
DE3484484D1 (de) 1991-05-29
EP0128771B1 (en) 1991-04-24
JPS6019381A (ja) 1985-01-31
US4571615A (en) 1986-02-18
NZ208427A (en) 1987-07-31

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