HK118994A - System for processing a scrambled video signal - Google Patents

System for processing a scrambled video signal

Info

Publication number
HK118994A
HK118994A HK118994A HK118994A HK118994A HK 118994 A HK118994 A HK 118994A HK 118994 A HK118994 A HK 118994A HK 118994 A HK118994 A HK 118994A HK 118994 A HK118994 A HK 118994A
Authority
HK
Hong Kong
Prior art keywords
receiver
processing
video signal
noise
scrambled
Prior art date
Application number
HK118994A
Other languages
English (en)
Inventor
Francis Rumreich Mark
Original Assignee
Rca Thomson Licensing Corporation
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 Rca Thomson Licensing Corporation filed Critical Rca Thomson Licensing Corporation
Publication of HK118994A publication Critical patent/HK118994A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • 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)
  • Television Receiver Circuits (AREA)
  • Television Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Picture Signal Circuits (AREA)
HK118994A 1986-01-15 1994-10-27 System for processing a scrambled video signal HK118994A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/819,412 US4670904A (en) 1986-01-15 1986-01-15 System for processing a scrambled video signal

Publications (1)

Publication Number Publication Date
HK118994A true HK118994A (en) 1994-11-04

Family

ID=25228079

Family Applications (1)

Application Number Title Priority Date Filing Date
HK118994A HK118994A (en) 1986-01-15 1994-10-27 System for processing a scrambled video signal

Country Status (9)

Country Link
US (1) US4670904A (en:Method)
JP (1) JPS62171390A (en:Method)
KR (1) KR950002668B1 (en:Method)
CA (1) CA1275727C (en:Method)
DE (1) DE3701030A1 (en:Method)
FR (1) FR2593010B1 (en:Method)
GB (1) GB2185669B (en:Method)
HK (1) HK118994A (en:Method)
SG (1) SG24592G (en:Method)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4965825A (en) * 1981-11-03 1990-10-23 The Personalized Mass Media Corporation Signal processing apparatus and methods
JPS6448584A (en) * 1987-08-18 1989-02-23 Alps Electric Co Ltd Catv converter
CA1292056C (en) * 1987-09-07 1991-11-12 Masatoshi Tanaka Video signal scrambling system
GB2233184B (en) * 1989-05-26 1993-05-19 Pioneer Electronic Corp Catv terminal unit having an improved descrambling operation
JPH04115790A (ja) * 1990-09-05 1992-04-16 Sharp Corp 同期回路
US5133009A (en) * 1990-10-04 1992-07-21 Thomson Consumer Electronics, Inc. Method and apparatus for defeating the operation of an ic built-in noise inverter
FI90612C (fi) * 1992-03-11 1994-02-25 Salon Televisiotehdas Oy Menetelmä ja dekooderi koodatun videosignaalin salauksen purkamiseksi
US5862219A (en) * 1995-05-12 1999-01-19 General Instrument Corporation Cable television setback decoder automatic control
WO1996042168A1 (en) * 1995-06-08 1996-12-27 Ictv, Inc. Switched channel system
WO1999030496A1 (en) * 1997-12-09 1999-06-17 Ictv, Inc. Distributed scrambling method and system
JP2003018565A (ja) * 2001-06-28 2003-01-17 Pioneer Electronic Corp 映像信号伝送装置
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
WO2008088752A2 (en) 2007-01-12 2008-07-24 Ictv, Inc. System and method for encoding scrolling raster images
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
EP2628306B1 (en) 2010-10-14 2017-11-22 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
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
WO2014197879A1 (en) 2013-06-06 2014-12-11 Activevideo Networks, Inc. Overlay rendering of user interface onto source video
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 (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2803700A (en) * 1952-03-01 1957-08-20 Rca Corp Signal level control of noise cancellation tube conduction threshold
US4042959A (en) * 1976-05-07 1977-08-16 Gte Sylvania Incorporated Noise suppression circuit
US4212032A (en) * 1978-08-18 1980-07-08 Rca Corporation Synchronization and gain control circuit
US4408225A (en) * 1981-07-06 1983-10-04 Zenith Radio Corporation Subscription television decoder
US4706285A (en) * 1985-12-24 1987-11-10 Rca Corporation Automatic gain control of a scrambled video signal

Also Published As

Publication number Publication date
DE3701030A1 (de) 1987-07-16
SG24592G (en) 1992-05-15
GB2185669B (en) 1989-10-25
FR2593010B1 (fr) 1991-06-07
KR870007635A (ko) 1987-08-20
GB8700795D0 (en) 1987-02-18
GB2185669A (en) 1987-07-22
JPH0462631B2 (en:Method) 1992-10-07
FR2593010A1 (fr) 1987-07-17
KR950002668B1 (ko) 1995-03-24
US4670904A (en) 1987-06-02
DE3701030C2 (en:Method) 1988-11-17
CA1275727C (en) 1990-10-30
JPS62171390A (ja) 1987-07-28

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)