KR900003821A - How to Drive an Optical Disc with Data Confidentiality - Google Patents

How to Drive an Optical Disc with Data Confidentiality Download PDF

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Publication number
KR900003821A
KR900003821A KR1019880010705A KR880010705A KR900003821A KR 900003821 A KR900003821 A KR 900003821A KR 1019880010705 A KR1019880010705 A KR 1019880010705A KR 880010705 A KR880010705 A KR 880010705A KR 900003821 A KR900003821 A KR 900003821A
Authority
KR
South Korea
Prior art keywords
flag
password
returning
secret
pass
Prior art date
Application number
KR1019880010705A
Other languages
Korean (ko)
Other versions
KR950000845B1 (en
Inventor
김해광
Original Assignee
안시환
삼성전자 주식회사
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 안시환, 삼성전자 주식회사 filed Critical 안시환
Priority to KR1019880010705A priority Critical patent/KR950000845B1/en
Publication of KR900003821A publication Critical patent/KR900003821A/en
Application granted granted Critical
Publication of KR950000845B1 publication Critical patent/KR950000845B1/en

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Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02Control of operating function, e.g. switching from recording to reproducing
    • G11B19/04Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions

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  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Storage Device Security (AREA)

Abstract

내용 없음.No content.

Description

데이타 비밀유지 기능을 가진 광 디스크 구동방법How to Drive an Optical Disc with Data Confidentiality

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 1 도는 본 발명에 따른 시스템도.1 is a system diagram according to the present invention.

제 3 도는 광 디스크의 비밀 암호 섹타.The third secret password sector of the optical disk.

Claims (1)

광 디스크 구동장치에 있어서, 시스템에 전원 공급시 광 디스크의 비밀 암호 섹타를 읽어들이는 제 1 과정과, 상기 제 1 과정 수행후 비밀 암호 플래그가 세트되어 있는지 판단하며 비밀 암호 플래그가 세트되어 있지 않을시 통과 플래그를 세트하는 제 2 과정과, 비밀 암호 플래그가 세트되어 있을시 일정시간동안 호스크 컴퓨터로부터 출력된 비밀 암호와 광 디스크로부터의 비밀 암호를 비교하여 같을시 통과 플래그를 세트하고, 일정 시간을 초과했을시 통과 플래그를 클리어시키는 제 3 과정과, 상기 제 2 과정 및 제 3 과정 수행후 디스크가 다른 것으로 바뀌었는지 판단하여 바뀌었을시 제 1 과정으로 되돌아가는 제 4 과정과, 상기 제 4 과정에서 디스크가 바뀌지 않았을시 코멘드를 해석하는 제 5 과정과, 상기 제 5 과정에서 라이트 명령일시 통과 플래그 세트 여부를 조사하여 세트시 재생동작을 수행하고 제 4 과정으로 되돌아가며, 리세트 상태일시 비밀 암호 에러를 기록하고 제 1 과정으로 되돌아가는 제 6 과정과, 상기 제 5 과정에서 리드 명령일시 통과 플래그 상태에 따라 세트시 기록 동작을 수행하고 제 4 과정으로 되돌아가며, 리세트 상태일시 비밀 암호 에러를 기록하고 제 1 과정으로 돌아가는 제 7 과정과, 상기 제 5 과정에서 비밀 번호 기록 명령일시 통과 플래그 상태에 따라 세트시 비밀 번호 기록 명령을 수행하고 제 4 과정으로 되돌아가며 리세트 상태일시 비밀 암호 에러를 기록하고 제 1 과정으로 돌아가는 제 8 과정과, 상기 제 5 과정에서 기타 코멘드일시 해당 코멘드를 수행하고 제 4 과정으로 되돌아가는 제 9 과정으로 이루어짐을 특징으로 하는 데이타 비밀 유지 기능을 가진 광 디스크 구동방법.In the optical disk drive, the first process of reading the secret password sector of the optical disk when the system is powered on, and it is determined whether the secret password flag is set after performing the first process, and the secret password flag is not set. The second step of setting the pass-through flag and comparing the secret password output from the host computer with the secret password from the optical disk for a predetermined time when the secret password flag is set, and set the same pass-through flag for a predetermined time. A third process of clearing the pass flag when exceeding; a fourth process of returning to the first process when the disc is changed by determining whether the disc is changed to another one after performing the second process and the third process; and the fourth process A fifth step of interpreting the command when the disc is not changed in the second step; The sixth step of checking whether or not the set is performed, performing a reproducing operation at the time of setting and returning to the fourth step, recording a reset state temporary secret error and returning to the first step, and passing the read command temporarily in the fifth step Performing a write operation upon set according to the flag state and returning to the fourth process; recording a reset state temporary secret error and returning to the first process; and a password write command temporary pass flag in the fifth process According to the state, performing the password write command at the time of setting and returning to the fourth process, recording the reset password of the temporary password error in the reset state, and returning to the first process, and executing other commands and commands at the fifth process. Optical data with a data confidentiality function, characterized in that it comprises a ninth process that returns to the fourth process. Greater driving method. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880010705A 1988-08-23 1988-08-23 Optical disk driving method KR950000845B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019880010705A KR950000845B1 (en) 1988-08-23 1988-08-23 Optical disk driving method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880010705A KR950000845B1 (en) 1988-08-23 1988-08-23 Optical disk driving method

Publications (2)

Publication Number Publication Date
KR900003821A true KR900003821A (en) 1990-03-27
KR950000845B1 KR950000845B1 (en) 1995-02-02

Family

ID=19277039

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880010705A KR950000845B1 (en) 1988-08-23 1988-08-23 Optical disk driving method

Country Status (1)

Country Link
KR (1) KR950000845B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060023768A (en) * 2004-09-10 2006-03-15 다이니폰 인사츠 가부시키가이샤 Decorative sheet and decorative material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060023768A (en) * 2004-09-10 2006-03-15 다이니폰 인사츠 가부시키가이샤 Decorative sheet and decorative material

Also Published As

Publication number Publication date
KR950000845B1 (en) 1995-02-02

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