KR950004125A - 기록재생장치 - Google Patents

기록재생장치 Download PDF

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Publication number
KR950004125A
KR950004125A KR1019940018308A KR19940018308A KR950004125A KR 950004125 A KR950004125 A KR 950004125A KR 1019940018308 A KR1019940018308 A KR 1019940018308A KR 19940018308 A KR19940018308 A KR 19940018308A KR 950004125 A KR950004125 A KR 950004125A
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KR
South Korea
Prior art keywords
recording
recording medium
optical
transparent substrate
position information
Prior art date
Application number
KR1019940018308A
Other languages
English (en)
Other versions
KR100237555B1 (ko
Inventor
미쓰아끼 오시마
Original Assignee
모리시와 요오이찌
마쓰시다 덴끼 상교오 가부시기가이샤
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Publication of KR950004125A publication Critical patent/KR950004125A/ko
Application granted granted Critical
Publication of KR100237555B1 publication Critical patent/KR100237555B1/ko

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    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G—PHYSICS
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    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/327—Table of contents
    • G11B27/329—Table of contents on a disc [VTOC]
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    • G06F21/80—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in storage media based on magnetic or optical technology, e.g. disks with sectors
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Abstract

광기록매체를 사용하는 기록재생장치에 의하여 ROM형 디스크를 재생하는 경우에 식별수단에 의해서 부정하게 복제된 ROM 디스크와 정규적으로 제조된 ROM 디스크를 식별함으로써 부정한 디스크의 소프트의 재생과 작동을 정지시키는 것을 목적으로 한다.
먼저 기록매체(2)의 광기록층(4)에 디스크의 특정 애드레스의 각도 배치표등 기준물리 형상정보를 기록한다. 그리고, 다음으로 기록재생장치에 있어서, 상기 기록매체의 물리형상을 측정하여 물리형상정보와 대조확인함으로써 부정 복제된 디스크의 소프트의 재생이나 작동을 방지하는 것이 가능하게 된다.

Description

기록재생장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 실시예 1에 있어서의 기록재생장치의 블록도, 제32도는 본 발명의 실시예 5에 있어서의 기록재생장치의 블록도, 제45도 (a)는 본 발명의 실시예 7에 있어서의 디스크카세트의 상면도, (b)도는 동 실시예 7에 있어서의 디스크카세트의 상면도, 제56도는 동 실시예 7의 기록매체의 상면도.

Claims (2)

  1. 투명기판과 이 투명기판의 형성된 광기록층을 지닌 원반형의 기록매체를 장착하여, 광원으로부터의 빛을 광헤드부와 광헤드 이동부에 의하여 상기한 투명기판측에서 상기한 광기록층에 결상시켜, 상기한 광기록층의 신호재생을 광기록재생회로에 의하여 행해지는 기록재생장치에 있어서, 상기한 기록매체상에 기록된 특정한 애드레스정보와 제1의 소정관계에 있는 정보가 기록된 뮬리위치나 또한 핏트의 깊이를 위치검출수단에 의하여 검출하고 제1위치정보를 얻음과 동시에 상기한 기록매체의 기록부에 암호화하여 기록된 특정한 애드레스와 상기한 제1의 소정 관계에 있는 정보의 물리위치나 또한 핏트의 깊이를 나타내는 제2위치 정보를 복사하여 상기한 제1위치정보와 상기한 제2위치정보를 대조해서 제2의 소정관계에 있는가를 확인한 후, 상기한 제2의 소정관계가 없는 경우에는 상기한 기록매체의 재생신호의 출력을 정지 혹은 상기한 기록매체에 기록된 프로그램의 동작을 정지 또는 암호의 복호정지를 행하는 것을 특징으로 하는 기록재생장치.
  2. 투명기판과 상기 투명기판에 형성된 광기록층과 자기기록층을 갖는 원반형의 기록매체를 장착하여 광원으로부터의 빛을 광헤드부와 광헤드 이동부에 의하여 상기 투명기판측에서 상기 광기록층에 결상시켜 상기 광기록층의 신호재생을 광기록재생회로에 의하여 행함과 동시에 상기 기록매체의 주변부에 자기헤드부와 자기헤드 이동부를 설치하고, 상기 자기기록층의 자기기록 또는 재생을 자기기록 재생회로에 의하여 행해지는 기록재생장치에 있어서, 상기한 기록매체상에 기록된 애드레스정보의 위치를 위치검출수단으로 검출하여 제1위치정보를 얻음과 동시에 상기한 기록매체의 기록부에 암호화하여 기록된 애드레스의 물리위치를 타나내는 제2위치정보를 복호하여 상기 제1위치정보와 상기 제2위치정보를 대조해서 소정의 관계에 있는가를 확인한 후, 상기한 소정의 관계가 없는 경우에는 상기 기록매체의 재생신호의 출력을 정지 또는 동작정지 또는 암호의 복호를 정지하는 것을 특징으로 하는 기록재생장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940018308A 1993-07-27 1994-07-27 기록재생장치 KR100237555B1 (ko)

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JP93-205682 1993-07-27
JP20568293 1993-07-27
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JP29750493 1993-11-02
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JP93-349972 1993-12-27
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040003288A (ko) * 2002-07-02 2004-01-13 엘지전자 주식회사 고밀도 광디스크와, 그에 따른 광디스크 장치에서의 재생제한방법

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE40957E1 (en) 1992-01-29 2009-11-10 Panasonic Corporation Medium, apparatus, and method related to encryption resultant information
EP1050879A3 (en) * 1993-07-27 2006-10-18 Matsushita Electric Industrial Co., Ltd. Recording and reproducing apparatus with means for encryption of information
US6747930B1 (en) 1996-12-24 2004-06-08 Hide & Seek Technologies, Inc. Data protection on an optical disk
JP4277452B2 (ja) * 2000-02-25 2009-06-10 ソニー株式会社 記録装置、再生装置
EP1195261A3 (en) * 2000-10-06 2002-04-17 Master Mind, Co., Ltd. Recording medium printing method
JP4880140B2 (ja) 2001-09-07 2012-02-22 任天堂株式会社 光ディスクならびに光ディスク再生装置および記録装置
JP2009510660A (ja) * 2005-09-30 2009-03-12 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ トラックが不均一な間隔で配置されたディスクを有する光学式記憶ディスク及びシステム

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58182171A (ja) * 1982-04-16 1983-10-25 Matsushita Electric Ind Co Ltd 円盤状記録媒体の再生装置
US4785361A (en) 1982-11-08 1988-11-15 Vault Corporation Method and apparatus for frustrating the unauthorized copying of recorded data
NL8303046A (nl) * 1983-09-01 1985-04-01 Philips Nv Inrichting voor het uitlezen van een schijfvormige registratiedrager.
JPS62205580A (ja) * 1986-03-05 1987-09-10 Hitachi Ltd デイスクおよびそれを用いたデ−タ保護方式
JPH02179951A (ja) 1988-12-29 1990-07-12 Nec Home Electron Ltd 記憶媒体と外部記憶装置
JPH0363936A (ja) * 1989-08-02 1991-03-19 Sharp Corp 信号領域判別装置
JP2794876B2 (ja) * 1990-02-08 1998-09-10 日本電気株式会社 浮上磁気ヘッド位置制御装置
NL9101358A (nl) * 1991-08-07 1993-03-01 Homer Bv Registratiedrager met echtheidskenmerk.
US5418852A (en) * 1992-03-18 1995-05-23 Fujitsu Limited Unauthorized use prevention method for optical disks, optical disk having unauthorized use prevention function, and optical disk apparatus
EP1050879A3 (en) * 1993-07-27 2006-10-18 Matsushita Electric Industrial Co., Ltd. Recording and reproducing apparatus with means for encryption of information
WO1995028704A1 (fr) * 1994-04-18 1995-10-26 Matsushita Electric Industrial Co., Ltd. Procede et dispositif d'interdiction de la copie frauduleuse et l'inscription frauduleuse d'information sur un support d'enregistrement optique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040003288A (ko) * 2002-07-02 2004-01-13 엘지전자 주식회사 고밀도 광디스크와, 그에 따른 광디스크 장치에서의 재생제한방법

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KR100237555B1 (ko) 2000-02-01
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