WO2006044622A3 - A method and apparatus for storing copy protection information separately from protected content - Google Patents

A method and apparatus for storing copy protection information separately from protected content Download PDF

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Publication number
WO2006044622A3
WO2006044622A3 PCT/US2005/036970 US2005036970W WO2006044622A3 WO 2006044622 A3 WO2006044622 A3 WO 2006044622A3 US 2005036970 W US2005036970 W US 2005036970W WO 2006044622 A3 WO2006044622 A3 WO 2006044622A3
Authority
WO
WIPO (PCT)
Prior art keywords
copy protection
signal
digital content
file
protection information
Prior art date
Application number
PCT/US2005/036970
Other languages
French (fr)
Other versions
WO2006044622A2 (en
Inventor
John O Ryan
Ronald Quan
James H Salter
Original Assignee
Macrovision Corp
John O Ryan
Ronald Quan
James H Salter
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, John O Ryan, Ronald Quan, James H Salter filed Critical Macrovision Corp
Priority to JP2007537935A priority Critical patent/JP4909274B2/en
Priority to EP05812506A priority patent/EP1825402A4/en
Publication of WO2006044622A2 publication Critical patent/WO2006044622A2/en
Publication of WO2006044622A3 publication Critical patent/WO2006044622A3/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00855—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a step of exchanging information with a remote server

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Storage Device Security (AREA)

Abstract

A copy protection system and method enabling storage of copy protection information separately from protected content is disclosed. One embodiment includes a mechanism for playing a recording medium, the recording medium having stored thereon a digital content file and a copy protection information file, the mechanism producing a digital content signal from the digital content file and a copy protection signal from the copy protection file; a digital to analog converter operatively connected to the mechanism for converting the digital content signal to an analog signal; a copy protection detector connected to the mechanism for detecting a copy protection trigger present in the digital content signal; and a signal modifier connected to the copy protection detector for modifying the analog signal to include the copy protection signal in response to detection of the copy protection trigger.
PCT/US2005/036970 2004-10-19 2005-10-14 A method and apparatus for storing copy protection information separately from protected content WO2006044622A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2007537935A JP4909274B2 (en) 2004-10-19 2005-10-14 Method and apparatus for storing copy protection information separately from protected content
EP05812506A EP1825402A4 (en) 2004-10-19 2005-10-14 A method and apparatus for storing copy protection information separately from protected content

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/968,487 US7784103B2 (en) 2004-10-19 2004-10-19 Method and apparatus for storing copy protection information separately from protected content
US10/968,487 2004-10-19

Publications (2)

Publication Number Publication Date
WO2006044622A2 WO2006044622A2 (en) 2006-04-27
WO2006044622A3 true WO2006044622A3 (en) 2007-06-21

Family

ID=36180771

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/036970 WO2006044622A2 (en) 2004-10-19 2005-10-14 A method and apparatus for storing copy protection information separately from protected content

Country Status (5)

Country Link
US (2) US7784103B2 (en)
EP (2) EP2372581A1 (en)
JP (1) JP4909274B2 (en)
TW (1) TWI291632B (en)
WO (1) WO2006044622A2 (en)

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US7907727B2 (en) * 2004-10-19 2011-03-15 Rovi Solutions Corporation System and method for allowing copying or distribution of a copy protected signal
US7784103B2 (en) * 2004-10-19 2010-08-24 Rovi Solutions Corporation Method and apparatus for storing copy protection information separately from protected content
US20060158737A1 (en) * 2005-01-19 2006-07-20 Chenming Hu Tamper-Proof Content-Playback System Offering Excellent Copyright Protection
US8428258B2 (en) 2007-05-02 2013-04-23 Rovi Technologies Corporation Method and apparatus for providing content control via detection of modifications to a signal
US20080274687A1 (en) 2007-05-02 2008-11-06 Roberts Dale T Dynamic mixed media package
EP2266050A4 (en) * 2008-03-31 2014-08-27 Packetvideo Corp System and method for managing, controlling and/or rendering media in a network
US8280049B2 (en) 2008-08-27 2012-10-02 Rovi Solutions Corporation Method and apparatus for synthesizing copy protection for reducing/defeating the effectiveness or capability of a circumvention device
US8248532B2 (en) * 2009-01-08 2012-08-21 Rovi Solutions Corporation Method and apparatus for providing a content control signal via color burst phase modifications
US8644680B2 (en) * 2009-09-18 2014-02-04 Rovi Technologies Corporation Method and apparatus for providing a content control signal in a media player via color burst phase modifications
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
US8306403B2 (en) * 2010-03-29 2012-11-06 Rovi Technologies Corporation Content control via guide data and/or metadata
US20120159534A1 (en) * 2010-07-08 2012-06-21 Rovi Technologies Corporation Signal modification via media guidance application data and/or metadata

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Non-Patent Citations (1)

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See also references of EP1825402A4 *

Also Published As

Publication number Publication date
EP2372581A1 (en) 2011-10-05
WO2006044622A2 (en) 2006-04-27
JP4909274B2 (en) 2012-04-04
US7784103B2 (en) 2010-08-24
US20060085863A1 (en) 2006-04-20
US8365307B2 (en) 2013-01-29
US20080292269A1 (en) 2008-11-27
EP1825402A2 (en) 2007-08-29
TW200627201A (en) 2006-08-01
EP1825402A4 (en) 2009-04-08
JP2008517555A (en) 2008-05-22
TWI291632B (en) 2007-12-21

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