AU6864898A - Method and apparatus for adaptively enhancing a scrambled television signal - Google Patents

Method and apparatus for adaptively enhancing a scrambled television signal

Info

Publication number
AU6864898A
AU6864898A AU68648/98A AU6864898A AU6864898A AU 6864898 A AU6864898 A AU 6864898A AU 68648/98 A AU68648/98 A AU 68648/98A AU 6864898 A AU6864898 A AU 6864898A AU 6864898 A AU6864898 A AU 6864898A
Authority
AU
Australia
Prior art keywords
television signal
scrambled television
adaptively enhancing
adaptively
enhancing
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.)
Abandoned
Application number
AU68648/98A
Inventor
Ronald Quan
John O. Ryan
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.)
Rovi Corp
Original Assignee
Macrovision 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 Macrovision Corp filed Critical Macrovision Corp
Publication of AU6864898A publication Critical patent/AU6864898A/en
Abandoned 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
    • 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
    • H04N7/169—Systems operating in the time domain of the television signal
    • H04N7/1693—Systems operating in the time domain of the television signal by displacing synchronisation signals relative to active picture signals or vice versa

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
AU68648/98A 1997-03-17 1998-03-17 Method and apparatus for adaptively enhancing a scrambled television signal Abandoned AU6864898A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US4094697P 1997-03-17 1997-03-17
US60040946 1997-03-17
PCT/US1998/005163 WO1998042130A1 (en) 1997-03-17 1998-03-17 Method and apparatus for adaptively enhancing a scrambled television signal

Publications (1)

Publication Number Publication Date
AU6864898A true AU6864898A (en) 1998-10-12

Family

ID=21913865

Family Applications (1)

Application Number Title Priority Date Filing Date
AU68648/98A Abandoned AU6864898A (en) 1997-03-17 1998-03-17 Method and apparatus for adaptively enhancing a scrambled television signal

Country Status (2)

Country Link
AU (1) AU6864898A (en)
WO (1) WO1998042130A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000005893A1 (en) * 1998-07-22 2000-02-03 Macrovision Corporation Enhancement consealment in the presence of the mistuning for var ious scrambling techniques
US6711261B1 (en) 1998-07-22 2004-03-23 Macrovision Corp Enhancing concealment in the presence of fine mistuning for various TV scrambling techniques

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3466636D1 (en) * 1983-02-18 1987-11-05 Sanyo Electric Co Scrambling system of television signal
US4852164A (en) * 1986-03-05 1989-07-25 Matsushita Electric Industrial Co., Ltd. Pulse generating apparatus
CA2015392A1 (en) * 1989-05-01 1990-11-01 William T. Murphy Scrambler with self calibration

Also Published As

Publication number Publication date
WO1998042130A1 (en) 1998-09-24

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