KR970008024A - 신호 기록 장치/신호 재생 장치 및 신호 기록매체 - Google Patents

신호 기록 장치/신호 재생 장치 및 신호 기록매체 Download PDF

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KR970008024A
KR970008024A KR1019960030208A KR19960030208A KR970008024A KR 970008024 A KR970008024 A KR 970008024A KR 1019960030208 A KR1019960030208 A KR 1019960030208A KR 19960030208 A KR19960030208 A KR 19960030208A KR 970008024 A KR970008024 A KR 970008024A
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signal
information
key
recording medium
signal recording
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요시토모 오사와
요이치로 사코
아키라 구리하라
이사오 가와시마
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이데이 노부유키
소니 가부시키가이샤
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    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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Abstract

신호 재생 장치에서 불법해독 및 불법복사를 곤란하게 한다. 상기 신호 재생 장치는 적어도 하나의 암호화 처리가 이루어진 암호화된 데이타와 상기 암호화를 해독하기 위한 적어도 하나의 키 정보가 배치된 장소를 지시하는 키 저장 위치 정보가 기록되어 있는 디지탈형 기록매체(101)에서 암호화 데이타를 재생하는 신호재생 장치이며, 기록매체(101)에서 암호화 데이타와 키 저장 위치 정보를 독출하는 재생 헤드 장치(12), TOC대 암호해독기(219), 및 CPU(224)등과 키 저장 위치 정보에 따라서 지정된 장소에서 키 정보를 이용하여, 암호화 데이타를 암호해독화 하는 디지탈 신호처리 회로(220)를 구비한다.

Description

신호 기록 장치/신호 재생 장치 및 신호 기록매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 신호 기록 장치의 실시예를 도시한 블럭 회로도, 제2도는 섹터 형성 회로에서 짝수와 홀수 바이트의 인터리빙을 실현하기 위한 실시예를 도시한 블럭도, 제16도는 본 발명에 따른 신호 재생 장치의 실시예를 도시하는 블럭회로도.

Claims (11)

  1. 신호 기록 매체에 대하여 암호화된 신호를 기록하는 신호 기록 장치에 있어서, 입력 신호를 암호화하기 위한 적어도 하나의 암호화 수단; 및 상기 적어도 하나의 암호화 수단에서 사용하는 암호화 키 정보가 배치디는 위치를 지시하는 키 저장 위치 정보를 입력하는 키 저장 위치 정보 입력 수단을 구비하는 것을 특징으로 하는 신호 기록 장치.
  2. 제1항에 있어서, 상기 키 저장 위치 정보를 신호 기록 매체의, 유저가 액세스할 수 없는 특정의 위치에 기록하는 것을 특징으로 하는 신호 기록 장치.
  3. 제1항에 있어서, 상기 키 정보는 신호 기록 매체상의 또는 상기 신호 기록 매체 이외의 위치에 기록하는 것을 특징으로 하는 신호 기록 장치.
  4. 제1항에 있어서, 상기 키 정보를 암호화하는 키 정보 암호화 수단과, 상기 키 정보 암호화 수단에 사용하는 암호와 키 정보가 배치된 위치를 지정하는 저장 정보 지시 정보를 입력하는 저장 정보 지시 정보 입력 수단을 더 구비하는 것을 특징으로 하는 신호 기록 장치.
  5. 적어도 하나의 암호화 처리는 실행하므로서 얻어진 암호화 신호와, 이 암호화 신호를 해독하기 위해 사용된 적어도 하나의 키 정보 아이템의 배열 위치를 지시하는 상기 키 저장 위치 정보를 포함하는 기록 신호를, 재생 장치를 구비하므로서, 판독 가능한 신호 기록 매체상에 기록하는 것을 특징으로 하는 신호 기록 매체.
  6. 제5항에 있어서, 상기 키 저장 위치 정보의 기록 위치는 특정 유저가 액세스할 수 없는 위치인 것을 특징으로 하는 신호 기록 매체.
  7. 제5항에 있어서, 상기 키 저장 위치 정보는 암호화되고, 상기 기록 신호는 상기 키 저장 위치 정보를 암호화 하는 키 정보를 더 포함하는 것을 특징으로 하는 신호 기록 매체.
  8. 적어도 하나의 암호화 처리가 실행된 암호화 신호와, 이 암호화 신호의 암호화를 해독하기 위해 적어도 하나의 키 정보 아이템의 배치된 장소를 지시하는 키 저장 위치 정보가 기록되는 신호 기록 매체로부터 상기 암호화 신호를 재생하는 신호 재생 장치에 있어서, 상기 신호 기록 매체로부터 상기 암호화 신호 및 상기 키저장 위치 정보를 판독 출력하는 독출 수단; 및 상기 키 저장 위치 정보에 따라서 지정된 위치의 상기 키 정보를 이용하여 상기 암호화 신호의 암호화를 해독하기 위한 복호 수단을 구비하는 것을 특징으로 하는 신호 재생장치.
  9. 제8항에 있어서, 상기 독출 수단은 신호 기록 매체상의 유저가 액세스할 수 없는 특정의 위치에 기록된 상기 키 저장 위치 정보를 판독 출력하는 것을 특징으로 하는 신호 재생 장치.
  10. 제8항에 있어서, 상기 신호 기록 매체의 위치 이외의 위치에 배치된 상기 키 정보를 취하는 출력(take out) 수단을 더 구비하는 것을 특징으로 하는 신호 재생 장치.
  11. 제8항에 있어서, 상기 키 정보는 암호화되고, 상기 독출 수단은 상기 키 정보를 암호화 하기 위한 상기 키 정보가 배치된 위치를 지시하는 정보를 판독 출력하는 것을 특징으로 하는 신호 재생 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960030208A 1995-07-25 1996-07-25 신호기록장치/신호재생장치및신호기록매체 KR100430697B1 (ko)

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JP18930995 1995-07-25
JP95-189309 1995-07-25

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KR970008024A true KR970008024A (ko) 1997-02-24
KR100430697B1 KR100430697B1 (ko) 2004-07-16

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EP (1) EP0756279B1 (ko)
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US6516064B1 (en) 2003-02-04
CN1127078C (zh) 2003-11-05
EP0756279A3 (en) 1999-03-03
DE69618101T2 (de) 2002-08-22
EP0756279B1 (en) 2001-12-19
EP0756279A2 (en) 1997-01-29
DE69618101D1 (de) 2002-01-31
KR100430697B1 (ko) 2004-07-16
CN1154551A (zh) 1997-07-16
MY152844A (en) 2014-11-28

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