SE9602656D0 - Sätt att säkerställa äktheten hos en optisk databärare - Google Patents
Sätt att säkerställa äktheten hos en optisk databärareInfo
- Publication number
- SE9602656D0 SE9602656D0 SE9602656A SE9602656A SE9602656D0 SE 9602656 D0 SE9602656 D0 SE 9602656D0 SE 9602656 A SE9602656 A SE 9602656A SE 9602656 A SE9602656 A SE 9602656A SE 9602656 D0 SE9602656 D0 SE 9602656D0
- Authority
- SE
- Sweden
- Prior art keywords
- data carrier
- logical
- digital information
- identity
- authenticity
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- 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
- G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
-
- 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
- G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
- G11B20/00123—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers the record carrier being identified by recognising some of its unique characteristics, e.g. a unique defect pattern serving as a physical signature of the record carrier
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- 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
- G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
- G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs
- G11B7/00375—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs arrangements for detection of physical defects, e.g. of recording layer
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
- G11B7/00458—Verification, i.e. checking data during or after recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/005—Reproducing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9602656A SE9602656L (sv) | 1996-07-05 | 1996-07-05 | Sätt att säkerställa äktheten hos en optisk databärare |
SE9603763A SE514352C2 (sv) | 1996-07-05 | 1996-10-14 | Sätt att förse en optisk databärare med identitetsinformation |
EP97927540A EP0907952B1 (en) | 1996-07-05 | 1997-06-03 | Method of providing an optical data carrier with identity information |
AT97927540T ATE196561T1 (de) | 1996-07-05 | 1997-06-03 | Verfahren zum versehen eines optischen datenträgers mit identitätsinformationen |
ES97927540T ES2152099T3 (es) | 1996-07-05 | 1997-06-03 | Procedimientos para proporcionar un soporte optico de datos con informacion sobre identidad |
PCT/SE1997/000957 WO1998001852A1 (en) | 1996-07-05 | 1997-06-03 | Method of providing an optical data carrier with identity information |
JP50511298A JP3955634B2 (ja) | 1996-07-05 | 1997-06-03 | 光データ記憶媒体に識別情報を提供する方法 |
KR1019997000014A KR100336253B1 (ko) | 1996-07-05 | 1997-06-03 | 광학 데이터 캐리어에 식별 정보를 제공하는 방법 |
DE69703155T DE69703155T2 (de) | 1996-07-05 | 1997-06-03 | Verfahren zum versehen eines optischen datenträgers mit identitätsinformationen |
US09/214,632 US6226770B1 (en) | 1996-07-05 | 1997-06-03 | Method of providing an optical data carrier with identity information |
TW086109370A TW444194B (en) | 1996-07-05 | 1997-07-03 | Method of providing an optical data carrier with identity information |
JP2004213015A JP4142618B2 (ja) | 1996-07-05 | 2004-07-21 | 光データ記憶媒体の識別情報をチェックする方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9602656A SE9602656L (sv) | 1996-07-05 | 1996-07-05 | Sätt att säkerställa äktheten hos en optisk databärare |
Publications (2)
Publication Number | Publication Date |
---|---|
SE9602656D0 true SE9602656D0 (sv) | 1996-07-05 |
SE9602656L SE9602656L (sv) | 1998-01-06 |
Family
ID=20403285
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9602656A SE9602656L (sv) | 1996-07-05 | 1996-07-05 | Sätt att säkerställa äktheten hos en optisk databärare |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE9602656L (sv) |
-
1996
- 1996-07-05 SE SE9602656A patent/SE9602656L/sv not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
SE9602656L (sv) | 1998-01-06 |
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