HK1013723A1 - Identification process of optically readable disk-shaped information carriers - Google Patents
Identification process of optically readable disk-shaped information carriersInfo
- Publication number
- HK1013723A1 HK1013723A1 HK98114977A HK98114977A HK1013723A1 HK 1013723 A1 HK1013723 A1 HK 1013723A1 HK 98114977 A HK98114977 A HK 98114977A HK 98114977 A HK98114977 A HK 98114977A HK 1013723 A1 HK1013723 A1 HK 1013723A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- optically readable
- information carriers
- shaped information
- identification process
- readable disk
- Prior art date
Links
- 239000000969 carrier Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 238000009434 installation Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/28—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs
- G11B23/283—Security features, e.g. digital codes
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Optical Recording Or Reproduction (AREA)
- Manufacturing Optical Record Carriers (AREA)
- Holo Graphy (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4403171A DE4403171A1 (de) | 1994-02-02 | 1994-02-02 | Verfahren zur Kennzeichnung von optisch auslesbaren plattenförmigen Informationsträgern |
PCT/EP1995/000366 WO1995021446A1 (fr) | 1994-02-02 | 1995-02-01 | Procede d'identification de supports d'informations a lecture optique, se presentant sous forme de disques |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1013723A1 true HK1013723A1 (en) | 1999-09-03 |
Family
ID=6509294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK98114977A HK1013723A1 (en) | 1994-02-02 | 1998-12-23 | Identification process of optically readable disk-shaped information carriers |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0742942B1 (fr) |
AT (1) | ATE167949T1 (fr) |
AU (1) | AU1696195A (fr) |
DE (2) | DE4403171A1 (fr) |
DK (1) | DK0742942T3 (fr) |
HK (1) | HK1013723A1 (fr) |
WO (1) | WO1995021446A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3707812B2 (ja) * | 1994-09-27 | 2005-10-19 | ソニー株式会社 | 光記録方法、光記録装置及び光記録媒体 |
US5822291A (en) * | 1995-03-23 | 1998-10-13 | Zoom Television, Inc. | Mass storage element and drive unit therefor |
JP2001291244A (ja) * | 2000-04-04 | 2001-10-19 | Sharp Corp | 光記録媒体、光記録情報の再生方法並びに再生装置 |
EP1184859A1 (fr) * | 2000-08-17 | 2002-03-06 | Euro Digital Disc Productions GmbH | Procédé de mise en forme et/ou de structuration de surface |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4677604A (en) * | 1985-02-04 | 1987-06-30 | Selsys Corporation | Method for controlling access to recorded data |
GB2173767A (en) * | 1985-04-03 | 1986-10-22 | Andrew James Smith | Security markings |
DE3810276A1 (de) * | 1988-03-25 | 1989-10-05 | Peter Bodinet | Verfahren zum identifizieren von unauthorisiert vervielfaeltigten edv - programmen |
DE4311683C2 (de) * | 1993-04-08 | 1996-05-02 | Sonopress Prod | Plattenförmiger optischer Speicher und Verfahren zu dessen Herstellung |
DE4321799C1 (de) * | 1993-06-30 | 1994-11-17 | Nils Diezmann | Verfahren zur Verhinderung der Benutzung illegal vervielfältigter Programme |
-
1994
- 1994-02-02 DE DE4403171A patent/DE4403171A1/de not_active Withdrawn
-
1995
- 1995-02-01 AT AT95908249T patent/ATE167949T1/de not_active IP Right Cessation
- 1995-02-01 DK DK95908249T patent/DK0742942T3/da active
- 1995-02-01 WO PCT/EP1995/000366 patent/WO1995021446A1/fr active IP Right Grant
- 1995-02-01 DE DE59502682T patent/DE59502682D1/de not_active Expired - Fee Related
- 1995-02-01 EP EP95908249A patent/EP0742942B1/fr not_active Expired - Lifetime
- 1995-02-01 AU AU16961/95A patent/AU1696195A/en not_active Abandoned
-
1998
- 1998-12-23 HK HK98114977A patent/HK1013723A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0742942A1 (fr) | 1996-11-20 |
AU1696195A (en) | 1995-08-21 |
ATE167949T1 (de) | 1998-07-15 |
DE4403171A1 (de) | 1995-08-03 |
WO1995021446A1 (fr) | 1995-08-10 |
DK0742942T3 (da) | 1999-04-12 |
DE59502682D1 (de) | 1998-08-06 |
EP0742942B1 (fr) | 1998-07-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20040201 |
|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |