AU2001293289A1 - Digital video recorder for encrypting/decrypting video programs - Google Patents

Digital video recorder for encrypting/decrypting video programs

Info

Publication number
AU2001293289A1
AU2001293289A1 AU2001293289A AU9328901A AU2001293289A1 AU 2001293289 A1 AU2001293289 A1 AU 2001293289A1 AU 2001293289 A AU2001293289 A AU 2001293289A AU 9328901 A AU9328901 A AU 9328901A AU 2001293289 A1 AU2001293289 A1 AU 2001293289A1
Authority
AU
Australia
Prior art keywords
encrypting
decrypting
programs
digital video
video recorder
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
AU2001293289A
Inventor
William B. Boyle
Alan P. Rice
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.)
Keen Personal Technologies Inc
Keen Personal Media Inc
Original Assignee
Keen Personal Technologies Inc
Keen Personal Media Inc
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 Keen Personal Technologies Inc, Keen Personal Media Inc filed Critical Keen Personal Technologies Inc
Publication of AU2001293289A1 publication Critical patent/AU2001293289A1/en
Abandoned legal-status Critical Current

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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0894—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape
    • H04N5/783—Adaptations for reproducing at a rate different from the recording rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/60—Digital content management, e.g. content distribution
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
AU2001293289A 2000-09-30 2001-09-18 Digital video recorder for encrypting/decrypting video programs Abandoned AU2001293289A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09676637 2000-09-30
US09/676,637 US6851055B1 (en) 2000-09-30 2000-09-30 Digital video recorder for encrypting/decrypting video programs in segments to facilitate trick play features
PCT/US2001/042226 WO2002029566A1 (en) 2000-09-30 2001-09-18 Digital video recorder for encrypting/decrypting video programs

Publications (1)

Publication Number Publication Date
AU2001293289A1 true AU2001293289A1 (en) 2002-04-15

Family

ID=24715325

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001293289A Abandoned AU2001293289A1 (en) 2000-09-30 2001-09-18 Digital video recorder for encrypting/decrypting video programs

Country Status (3)

Country Link
US (1) US6851055B1 (en)
AU (1) AU2001293289A1 (en)
WO (1) WO2002029566A1 (en)

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Also Published As

Publication number Publication date
US6851055B1 (en) 2005-02-01
WO2002029566A1 (en) 2002-04-11

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