TW345794B - Picture information transmission system, picture information recording device and picture information reproduction device - Google Patents

Picture information transmission system, picture information recording device and picture information reproduction device

Info

Publication number
TW345794B
TW345794B TW083102845A TW83102845A TW345794B TW 345794 B TW345794 B TW 345794B TW 083102845 A TW083102845 A TW 083102845A TW 83102845 A TW83102845 A TW 83102845A TW 345794 B TW345794 B TW 345794B
Authority
TW
Taiwan
Prior art keywords
picture information
picture
video signal
transmission system
signal
Prior art date
Application number
TW083102845A
Other languages
English (en)
Inventor
Keiji Kanouda
Tadashi Ezaki
Teruhiko Gun
Satoshi Tuchiya
Original Assignee
Sony Co Ltd
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 Sony Co Ltd filed Critical Sony Co Ltd
Application granted granted Critical
Publication of TW345794B publication Critical patent/TW345794B/zh

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
    • 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
    • G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
    • G11B20/00746—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number
    • G11B20/00753—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags
    • G11B20/00768—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags wherein copy control information is used, e.g. for indicating whether a content may be copied freely, no more, once, or never, by setting CGMS, SCMS, or CCI flags
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • 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
    • G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
    • G11B20/00746—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number
    • 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
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N5/9201—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving the multiplexing of an additional signal and the video signal
    • H04N5/9206—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving the multiplexing of an additional signal and the video signal the additional signal being a character code 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
    • H04N2005/91321—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]

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Technology Law (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Television Systems (AREA)
TW083102845A 1993-04-02 1994-03-31 Picture information transmission system, picture information recording device and picture information reproduction device TW345794B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7704493 1993-04-02
JP21320693A JP3250333B2 (ja) 1993-04-02 1993-08-27 映像信号処理方法、映像信号記録方法、映像信号再生方法、映像信号処理装置、映像信号記録装置及び映像信号再生装置

Publications (1)

Publication Number Publication Date
TW345794B true TW345794B (en) 1998-11-21

Family

ID=26418142

Family Applications (1)

Application Number Title Priority Date Filing Date
TW083102845A TW345794B (en) 1993-04-02 1994-03-31 Picture information transmission system, picture information recording device and picture information reproduction device

Country Status (8)

Country Link
US (4) US5991500A (zh)
EP (2) EP0618723B1 (zh)
JP (1) JP3250333B2 (zh)
KR (5) KR100328211B1 (zh)
CA (1) CA2120380C (zh)
DE (2) DE69427205T2 (zh)
HK (1) HK1036376A1 (zh)
TW (1) TW345794B (zh)

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Also Published As

Publication number Publication date
EP1069772B1 (en) 2009-05-06
KR100323048B1 (ko) 2002-02-09
KR100398913B1 (ko) 2003-09-19
US5991500A (en) 1999-11-23
EP0618723B1 (en) 2001-05-16
HK1036376A1 (en) 2001-12-28
DE69427205T2 (de) 2001-11-08
JPH06339110A (ja) 1994-12-06
EP1069772A3 (en) 2006-01-11
DE69435210D1 (de) 2009-06-18
CA2120380A1 (en) 1994-10-03
KR100328211B1 (ko) 2002-08-21
KR100355373B1 (ko) 2002-10-12
USRE43240E1 (en) 2012-03-13
DE69427205D1 (de) 2001-06-21
KR100323047B1 (ko) 2002-02-09
CA2120380C (en) 2002-12-24
EP0618723A1 (en) 1994-10-05
EP1069772A2 (en) 2001-01-17
JP3250333B2 (ja) 2002-01-28
USRE43854E1 (en) 2012-12-11
USRE43520E1 (en) 2012-07-17

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