WO2006121628A3 - Method and apparatus for modifying a subsequently generated control command in a content control system - Google Patents

Method and apparatus for modifying a subsequently generated control command in a content control system Download PDF

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Publication number
WO2006121628A3
WO2006121628A3 PCT/US2006/015978 US2006015978W WO2006121628A3 WO 2006121628 A3 WO2006121628 A3 WO 2006121628A3 US 2006015978 W US2006015978 W US 2006015978W WO 2006121628 A3 WO2006121628 A3 WO 2006121628A3
Authority
WO
WIPO (PCT)
Prior art keywords
control
copy protection
signals
record
modifying
Prior art date
Application number
PCT/US2006/015978
Other languages
French (fr)
Other versions
WO2006121628A2 (en
Inventor
Ronald Quan
Original Assignee
Macrovision Corp
Ronald Quan
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, Ronald Quan filed Critical Macrovision Corp
Priority to EP06751617A priority Critical patent/EP1886500A4/en
Priority to JP2008510061A priority patent/JP2008541563A/en
Priority to CA2605857A priority patent/CA2605857C/en
Publication of WO2006121628A2 publication Critical patent/WO2006121628A2/en
Publication of WO2006121628A3 publication Critical patent/WO2006121628A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91314—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a pulse signal inserted in blanking intervals of the video signal, e.g. pseudo-AGC pulses, pseudo-sync pulses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91321—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a copy protection control signal, e.g. a record inhibit signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91328—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a copy management signal, e.g. a copy generation management signal [CGMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91335—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a watermark
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
    • H04N2005/91364—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video signal being scrambled
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
    • H04N2005/91371—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video color burst signal being modified

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

In record or content control management systems, various selected reference, record control, copy protection or control information signals, or other signifiers, are used to identify control signals, for example, bits, to provide control of subsequent use of data, audio and video signals in the analog and digital domain. Method and apparatus are disclosed for modifying the effects of a content control system as well as for modifying an effect of a copy protection signal. To this end, the reference, record control, copy protection signals, or other control information signals, e.g., content control signals, may be modified to cause an erroneous or unintended reading subsequently of the reference or control signals which in turn correspondingly alters the control command of the record or content control system. Further, where a copy protection signal is being used as a control signal, a modification may be made to the copy protection signal to alter the subsequently generated control command while still maintaining copy protection effects in the analog domain and allowing recording in the digital domain. Also, included are unique methods for providing content control.
PCT/US2006/015978 2005-05-06 2006-04-26 Method and apparatus for modifying a subsequently generated control command in a content control system WO2006121628A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP06751617A EP1886500A4 (en) 2005-05-06 2006-04-26 Method and apparatus for modifying a subsequently generated control command in a content control system
JP2008510061A JP2008541563A (en) 2005-05-06 2006-04-26 Method and apparatus for modifying subsequent generation control command in content control system
CA2605857A CA2605857C (en) 2005-05-06 2006-04-26 Method and apparatus for modifying a subsequently generated control command in a content control system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/123,826 US7792293B2 (en) 2005-05-06 2005-05-06 Method and apparatus for modifying a subsequently generated control command in a content control system
US11/123,826 2005-05-06

Publications (2)

Publication Number Publication Date
WO2006121628A2 WO2006121628A2 (en) 2006-11-16
WO2006121628A3 true WO2006121628A3 (en) 2007-11-15

Family

ID=37394057

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/015978 WO2006121628A2 (en) 2005-05-06 2006-04-26 Method and apparatus for modifying a subsequently generated control command in a content control system

Country Status (5)

Country Link
US (2) US7792293B2 (en)
EP (1) EP1886500A4 (en)
JP (1) JP2008541563A (en)
CA (1) CA2605857C (en)
WO (1) WO2006121628A2 (en)

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US20110122142A1 (en) * 2009-11-24 2011-05-26 Nvidia Corporation Content presentation protection systems and methods
US8374490B2 (en) * 2010-02-24 2013-02-12 Rovi Technologies Corporation Method and apparatus for receiving metadata, EPG, or IPG signals in an integrated circuit for control purposes
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Also Published As

Publication number Publication date
CA2605857A1 (en) 2006-11-16
EP1886500A4 (en) 2012-06-13
CA2605857C (en) 2011-11-29
US20060251252A1 (en) 2006-11-09
US7792293B2 (en) 2010-09-07
US8374347B2 (en) 2013-02-12
EP1886500A2 (en) 2008-02-13
JP2008541563A (en) 2008-11-20
WO2006121628A2 (en) 2006-11-16
US20100290620A1 (en) 2010-11-18

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