KR100279339B1 - 정보 기록 매체에 기록되어 있는 정보를 재생하는 정보 재생장치, 인증 처리를 하는 인증 장치, 제1 장치와 복수의 제2장치 사이에서 상호 인증을 행함으로써 정보를 전송하는 정보처리 시스템 - Google Patents

정보 기록 매체에 기록되어 있는 정보를 재생하는 정보 재생장치, 인증 처리를 하는 인증 장치, 제1 장치와 복수의 제2장치 사이에서 상호 인증을 행함으로써 정보를 전송하는 정보처리 시스템 Download PDF

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Publication number
KR100279339B1
KR100279339B1 KR1019980024048A KR19980024048A KR100279339B1 KR 100279339 B1 KR100279339 B1 KR 100279339B1 KR 1019980024048 A KR1019980024048 A KR 1019980024048A KR 19980024048 A KR19980024048 A KR 19980024048A KR 100279339 B1 KR100279339 B1 KR 100279339B1
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KR
South Korea
Prior art keywords
information
authentication
encryption key
key
encryption
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 - Fee Related
Application number
KR1019980024048A
Other languages
English (en)
Korean (ko)
Other versions
KR19990013450A (ko
Inventor
히데오 안도
마사키 나카가와
요시유키 이시자와
다다시 고지마
Original Assignee
니시무로 타이죠
가부시끼가이샤 도시바
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 니시무로 타이죠, 가부시끼가이샤 도시바 filed Critical 니시무로 타이죠
Publication of KR19990013450A publication Critical patent/KR19990013450A/ko
Application granted granted Critical
Publication of KR100279339B1 publication Critical patent/KR100279339B1/ko
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4331—Caching operations, e.g. of an advertisement for later insertion during playback
    • 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
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/84—Television signal recording using optical recording
    • H04N5/85—Television signal recording using optical recording on discs or drums
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/806—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components with processing of the sound signal
    • H04N9/8063—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components with processing of the sound signal using time division multiplex of the PCM audio and PCM video signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
    • H04N9/8205—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
    • H04N9/8205—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal
    • H04N9/8227—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal the additional signal being at least another television signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Storage Device Security (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)
KR1019980024048A 1997-07-24 1998-06-25 정보 기록 매체에 기록되어 있는 정보를 재생하는 정보 재생장치, 인증 처리를 하는 인증 장치, 제1 장치와 복수의 제2장치 사이에서 상호 인증을 행함으로써 정보를 전송하는 정보처리 시스템 Expired - Fee Related KR100279339B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP97-198638 1997-07-24
JP9198638A JPH1145507A (ja) 1997-07-24 1997-07-24 情報再生装置、認識装置、情報処理システム

Publications (2)

Publication Number Publication Date
KR19990013450A KR19990013450A (ko) 1999-02-25
KR100279339B1 true KR100279339B1 (ko) 2001-03-02

Family

ID=16394546

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019980024048A Expired - Fee Related KR100279339B1 (ko) 1997-07-24 1998-06-25 정보 기록 매체에 기록되어 있는 정보를 재생하는 정보 재생장치, 인증 처리를 하는 인증 장치, 제1 장치와 복수의 제2장치 사이에서 상호 인증을 행함으로써 정보를 전송하는 정보처리 시스템

Country Status (6)

Country Link
US (1) US6338139B1 (https=)
EP (1) EP0893796B1 (https=)
JP (1) JPH1145507A (https=)
KR (1) KR100279339B1 (https=)
CN (1) CN1144417C (https=)
DE (1) DE69832235T2 (https=)

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Also Published As

Publication number Publication date
EP0893796B1 (en) 2005-11-09
DE69832235T2 (de) 2006-07-27
CN1144417C (zh) 2004-03-31
DE69832235D1 (de) 2005-12-15
KR19990013450A (ko) 1999-02-25
JPH1145507A (ja) 1999-02-16
US6338139B1 (en) 2002-01-08
EP0893796A3 (en) 2000-04-05
CN1206907A (zh) 1999-02-03
EP0893796A2 (en) 1999-01-27

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