NL8303773A - Werkwijze en toestel voor het afweren van het onbevoegd overnemen van opgetekende gegevens. - Google Patents
Werkwijze en toestel voor het afweren van het onbevoegd overnemen van opgetekende gegevens. Download PDFInfo
- Publication number
- NL8303773A NL8303773A NL8303773A NL8303773A NL8303773A NL 8303773 A NL8303773 A NL 8303773A NL 8303773 A NL8303773 A NL 8303773A NL 8303773 A NL8303773 A NL 8303773A NL 8303773 A NL8303773 A NL 8303773A
- Authority
- NL
- Netherlands
- Prior art keywords
- data
- group
- read
- recording
- recorded
- Prior art date
Links
Classifications
-
- 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
- G11B20/00659—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a control step which is implemented as an executable file stored on the record 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
- 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
- G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
- G11B20/00586—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium
-
- 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
- G11B20/00681—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access
- G11B20/00695—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access said measures preventing that data are read from the recording medium
-
- 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
- G11B20/0092—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors
- G11B20/00927—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors wherein said defects or errors are generated on purpose, e.g. intended scratches
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
- G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Storage Device Security (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US43990782A | 1982-11-08 | 1982-11-08 | |
US43990782 | 1982-11-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
NL8303773A true NL8303773A (nl) | 1984-06-01 |
Family
ID=23746629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL8303773A NL8303773A (nl) | 1982-11-08 | 1983-11-02 | Werkwijze en toestel voor het afweren van het onbevoegd overnemen van opgetekende gegevens. |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5987571A (ja) |
CH (1) | CH666363A5 (ja) |
DE (1) | DE3319343A1 (ja) |
FR (1) | FR2535885B1 (ja) |
GB (1) | GB2131580B (ja) |
IL (1) | IL69999A (ja) |
NL (1) | NL8303773A (ja) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3375854D1 (en) * | 1982-11-22 | 1988-04-07 | Dysan Corp | Method and apparatus for authenticating memory disk |
IL68989A (en) * | 1983-06-15 | 1985-03-31 | Amiran Grynberg | Diskette protection |
US4577289A (en) * | 1983-12-30 | 1986-03-18 | International Business Machines Corporation | Hardware key-on-disk system for copy-protecting magnetic storage media |
GB2162992B (en) * | 1984-08-09 | 1988-10-12 | Edward Peter Campbell Sington | A method of recording a computer program |
US4823210A (en) * | 1984-08-13 | 1989-04-18 | Verbatim Corporation | Copy protected disk |
US4644493A (en) * | 1984-09-14 | 1987-02-17 | International Business Machines Corporation | Implementing a shared higher level of privilege on personal computers for copy protection of software |
GB2173327A (en) * | 1985-03-15 | 1986-10-08 | David Allan Phillips | Copy protecting computer programs |
GB8511995D0 (en) * | 1985-05-11 | 1985-06-19 | Ross S R | Software protection |
US4858036A (en) * | 1986-08-04 | 1989-08-15 | Peter Ginkel | Software protection and identification system |
US4980782A (en) * | 1985-06-03 | 1990-12-25 | Peter Ginkel | Software protection and identification system |
US4849836A (en) * | 1985-06-07 | 1989-07-18 | Software Heaven, Inc. | Copy protection for computer discs |
JP2771808B2 (ja) * | 1986-12-27 | 1998-07-02 | ソニー株式会社 | 記録媒体 |
GB2204970A (en) * | 1987-05-19 | 1988-11-23 | Gen Electric Co Plc | Data storage system |
NL8801275A (nl) * | 1988-05-18 | 1989-12-18 | Philips Nv | Optekensysteem alsmede registratiedrager en schrijfinrichting voor toepassing in het systeem. |
DE3810276A1 (de) * | 1988-03-25 | 1989-10-05 | Peter Bodinet | Verfahren zum identifizieren von unauthorisiert vervielfaeltigten edv - programmen |
JPH0244448A (ja) * | 1988-08-05 | 1990-02-14 | Nec Corp | フロッピーディスク |
US4935835A (en) * | 1988-11-10 | 1990-06-19 | Insite Peripherals, Inc. | Magnetic media containing reference feature and methods for referencing magnetic head position to the reference feature |
DE4009103A1 (de) * | 1990-03-21 | 1991-09-26 | Innomed Megabrain Entspannungs | Verfahren zur wissensvermittlung |
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 |
JP3980706B2 (ja) * | 1997-05-23 | 2007-09-26 | 危機管理株式会社 | Icカードおよびその認証装置 |
DE19842392C1 (de) * | 1998-09-16 | 1999-12-30 | Ok Media Disc Service Gmbh & C | Kopierschutzverfahren |
US7370367B2 (en) * | 2000-05-18 | 2008-05-06 | 3Lfants Limited | Security device and article incorporating same |
DE10217551A1 (de) * | 2002-04-19 | 2003-11-06 | Helmut Alexander Lotze | Vorrichtung und Verfahren zur Verhinderung unberechtigter Verwendung von Software |
GB2373091A (en) * | 2002-05-29 | 2002-09-11 | Donald Eric Butterfield | Copy protection |
KR20120050449A (ko) * | 2009-07-17 | 2012-05-18 | 세큐어 콘텐트 스토리지 어소시에이션, 엘엘씨 | 단순 비자동 피어링 미디어 복제 감지 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1529566A (en) * | 1974-10-16 | 1978-10-25 | Emi Ltd | Magnetic recording |
GB1529939A (en) * | 1975-10-06 | 1978-10-25 | Emi Ltd | Method of verification of magnetic records |
GB1525292A (en) * | 1976-04-30 | 1978-09-20 | Emi Ltd | Identification of records |
US4214280A (en) * | 1978-05-30 | 1980-07-22 | Xerox Corporation | Method and apparatus for recording data without recording on defective areas of a data recording medium |
US4337659A (en) * | 1979-06-29 | 1982-07-06 | Burroughs Corporation | Computer tape and reel signature for computer data file security |
-
1983
- 1983-05-27 DE DE19833319343 patent/DE3319343A1/de not_active Withdrawn
- 1983-05-30 JP JP58094232A patent/JPS5987571A/ja active Pending
- 1983-08-01 FR FR8312643A patent/FR2535885B1/fr not_active Expired - Fee Related
- 1983-10-18 IL IL69999A patent/IL69999A/xx unknown
- 1983-10-21 CH CH5728/83A patent/CH666363A5/de not_active IP Right Cessation
- 1983-11-01 GB GB08329177A patent/GB2131580B/en not_active Expired
- 1983-11-02 NL NL8303773A patent/NL8303773A/nl not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
IL69999A0 (en) | 1984-01-31 |
GB2131580A (en) | 1984-06-20 |
GB2131580B (en) | 1987-06-24 |
GB8329177D0 (en) | 1983-12-07 |
FR2535885B1 (fr) | 1993-07-23 |
DE3319343A1 (de) | 1984-05-10 |
JPS5987571A (ja) | 1984-05-21 |
FR2535885A1 (fr) | 1984-05-11 |
CH666363A5 (de) | 1988-07-15 |
IL69999A (en) | 1985-07-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A85 | Still pending on 85-01-01 | ||
BV | The patent application has lapsed |