JPH056724B2 - - Google Patents

Info

Publication number
JPH056724B2
JPH056724B2 JP57208345A JP20834582A JPH056724B2 JP H056724 B2 JPH056724 B2 JP H056724B2 JP 57208345 A JP57208345 A JP 57208345A JP 20834582 A JP20834582 A JP 20834582A JP H056724 B2 JPH056724 B2 JP H056724B2
Authority
JP
Japan
Prior art keywords
signal
circuit
number information
videotape
data
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.)
Expired - Lifetime
Application number
JP57208345A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5998306A (ja
Inventor
Akihisa Oosawa
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP20834582A priority Critical patent/JPS5998306A/ja
Priority to CA000441083A priority patent/CA1291261C/en
Priority to US06/551,022 priority patent/US4942488A/en
Priority to AU21567/83A priority patent/AU564386B2/en
Priority to NL8304046A priority patent/NL192967C/nl
Priority to GB08331362A priority patent/GB2132812B/en
Priority to DE19833342520 priority patent/DE3342520A1/de
Priority to IT23902/83A priority patent/IT1169143B/it
Priority to FR838318886A priority patent/FR2536932B1/fr
Publication of JPS5998306A publication Critical patent/JPS5998306A/ja
Priority to CA000615631A priority patent/CA1291259C/en
Publication of JPH056724B2 publication Critical patent/JPH056724B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • 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
    • G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
    • 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
    • G11B20/00188—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised devices recording or reproducing contents to/from a record carrier
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B31/00—Arrangements for the associated working of recording or reproducing apparatus with related apparatus
    • 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
    • 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
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/28—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
JP20834582A 1982-11-25 1982-11-26 ビデオテ−プレコ−ダ Granted JPS5998306A (ja)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP20834582A JPS5998306A (ja) 1982-11-26 1982-11-26 ビデオテ−プレコ−ダ
CA000441083A CA1291261C (en) 1982-11-25 1983-11-14 Video theater system
US06/551,022 US4942488A (en) 1982-11-25 1983-11-14 Video theater system
AU21567/83A AU564386B2 (en) 1982-11-25 1983-11-21 A video theatre system
GB08331362A GB2132812B (en) 1982-11-25 1983-11-24 Video theatre systems
NL8304046A NL192967C (nl) 1982-11-25 1983-11-24 Videotheaterinstallatie.
DE19833342520 DE3342520A1 (de) 1982-11-25 1983-11-24 Videotheatersystem
IT23902/83A IT1169143B (it) 1982-11-25 1983-11-25 Videocinema
FR838318886A FR2536932B1 (fr) 1982-11-25 1983-11-25 Systeme de cinema video utilisant un code de commande, lu en mode de lecture pour commander automatiquement la mise au point, les dimensions de l'ecran ou autres parametres
CA000615631A CA1291259C (en) 1982-11-25 1990-01-26 Video theater system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20834582A JPS5998306A (ja) 1982-11-26 1982-11-26 ビデオテ−プレコ−ダ

Publications (2)

Publication Number Publication Date
JPS5998306A JPS5998306A (ja) 1984-06-06
JPH056724B2 true JPH056724B2 (enrdf_load_stackoverflow) 1993-01-27

Family

ID=16554733

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20834582A Granted JPS5998306A (ja) 1982-11-25 1982-11-26 ビデオテ−プレコ−ダ

Country Status (1)

Country Link
JP (1) JPS5998306A (enrdf_load_stackoverflow)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114483Y2 (enrdf_load_stackoverflow) * 1972-05-08 1976-04-17
JPS5774867A (en) * 1980-10-28 1982-05-11 Toshiba Corp Floppy disk

Also Published As

Publication number Publication date
JPS5998306A (ja) 1984-06-06

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