[특허]Method of managing copy protection information of a recording medium, recording medium with copy protection information for contents recorded thereon, and reproducing method for the recording medium

Method of managing copy protection information of a recording medium, recording medium with copy protection information for contents recorded thereon, and reproducing method for the recording medium 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-012/14 G11B-005/86 G11B-007/24
출원번호	US-0516910 (2004-01-24)
등록번호	US-8090103 (2012-01-03)
우선권정보	KR-10-2003-0004930 (2003-01-24)
국제출원번호	PCT/KR2004/000113 (2004-01-24)
§371/§102 date	20050509 (20050509)
국제공개번호	WO2004/066298 (2004-08-05)
발명자 / 주소	Suh, Sang Woon Kim, Jin Yong
출원인 / 주소	LG Electronics Inc.
대리인 / 주소	Harness, Dickey & Pierce, P.L.C.
인용정보	피인용 횟수 : 0 인용 특허 : 45

초록 ▼

The present invention relates to a method of managing CPI (Copy Protection Information) for preventing unauthorized copy of encrypted content recorded on a high-density recording medium such as a BD-ROM (Blu-ray Disc ROM). In the present method, when main content data is recorded in encrypted manner, CPI that is necessary to decrypt the encrypted main content data is written in a predetermined PIC area and is also copied at least once in an area other than the PIC area.

대표청구항 ▼

1. A method of recording copy protection information on a recording medium, comprising: recording encrypted data in a main data area of the recording medium;recording copy protection information additionally in a second area other than a first area including original copy protection information, wherein the copy protection information is required for decrypting the encrypted data and the second area is separated from the main data area; andrecording position information for indicating where the copy protection information is recorded,wherein the second area is formed in a lead-in area and/or lead-out area defined in the recording medium. 2. The method set forth in claim 1, wherein the copy protection information in first area and/or the second area is formed as wobble pattern. 3. The method set forth in claim 1, wherein control information about the recording medium is recorded in the lead-in area defined in the recording medium and the control information is duplicated in an area other than the first area. 4. A recording medium having a data structure for managing copy protection information by a recording apparatus, comprising: a data area for storing encrypted data;a first area for storing copy protection information for managing decryption of the encrypted data by the recording apparatus;at least one second area for storing a duplicate of the copy protection information; anda third area for storing position information indicating where the copy protection information is recorded,wherein the second area is formed in a lead-in area and/or lead-out area defined in the recording medium and the second area is separated from the first area. 5. The recording medium set forth in claim 4, wherein the first area includes an area within a lead-in area and/or a lead-out area defined in the recording medium. 6. The recording medium set forth in claim 4, wherein copy protection information in the first area and/or the second area is formed as wobble pattern. 7. A method of reproducing data from a recording medium, comprising the steps of: detecting copy protection information recorded in a first area of the recording medium or repeatedly recorded in a second area copied from the first area where original copy protection information is recorded, the copy protection information being required for decrypting encrypted data recorded in a main data area of the recording medium; andperforming a decryption of the encrypted data based on the detected copy protection information,wherein at least the second area is separated from the first area, andthe detecting step detects the copy protection information based on position information to indicate where the copy protection information is recorded,wherein the second area is formed in a lead-in area and/or lead-out area defined in the recording medium. 8. The method set forth in claim 7, wherein the copy protection information is recorded differently depending on a manufacture of the recording medium. 9. The method set forth in claim 7, wherein the detecting step includes a step of detecting position information for the original copy protection information and reads the original copy protection information based on the position information. 10. The method set forth in claim 7, wherein the detecting step includes a step of detecting position information for at least one of the repeated copy protection information and reads the repeated copy protection information based on the position information. 11. The method set forth in claim 7, wherein the detecting step detects other one among the repeated copy protection information if an error occurs in the detection of the copy protection information. 12. The method set forth in claim 7, wherein the original copy protection information and/or the duplicated copy protection information is recorded in wobbled form, wherein the detecting step detects the copy protection information formed in wobble pattern. 13. An apparatus for reproducing data from or recording data on a recording medium, comprising: a pickup unit configured to read data from the recording medium;a controller configured to control the pickup unit to detect copy protection information based on position information to indicate where the copy protection information is recorded, the copy protection information being required for processing the copy-protected data and recorded in a first area and additionally in a second area other than the first area, the first area including original copy protection information and the second area including copied copy protection information; anda processor configured to process the copy-protected data using detected copy protection information,wherein the second area is formed in a lead-in area and/or lead-out area defined in the recording medium and the second area is separated from the first area. 14. The apparatus set forth in claim 13, wherein the controller is configured to control the pickup unit to detect the copy protection information from the first area. 15. The apparatus set forth in claim 13, wherein the controller is configured to control the pickup unit to detect the copied copy protection information from the position information for indicating a position of the copied copy protection information. 16. The apparatus set forth in claim 15, wherein the controller is configured to control the pickup unit to detect the copied copy protection information using the position information if the detection of the original copy protection information recorded in the first area fails. 17. The apparatus set forth in claim 13, wherein the controller is configured to identify the position of the copy protection information from the position information present within a basic information unit required for controlling a recording or reproducing of the copy-protected data in the recording medium.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Method of managing copy protection information of a recording medium, recording medium with copy protection information for contents recorded thereon, and reproducing method for the recording medium 원문보기

초록 ▼

대표청구항 ▼

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연합인증

Method of managing copy protection information of a recording medium, recording medium with copy protection information for contents recorded thereon, and reproducing method for the recording medium 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허에 인용된 특허 (45)

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