TW200606883A - Spiral angle controlled information - Google Patents

Spiral angle controlled information

Info

Publication number
TW200606883A
TW200606883A TW094114326A TW94114326A TW200606883A TW 200606883 A TW200606883 A TW 200606883A TW 094114326 A TW094114326 A TW 094114326A TW 94114326 A TW94114326 A TW 94114326A TW 200606883 A TW200606883 A TW 200606883A
Authority
TW
Taiwan
Prior art keywords
spiral angle
record carrier
information
providing
controlled information
Prior art date
Application number
TW094114326A
Other languages
English (en)
Inventor
Adrianus Johannes Maria Denissen
Antonius Adriaan Maria Staring
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of TW200606883A publication Critical patent/TW200606883A/zh

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
    • 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
    • G11B23/281—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs by changing the physical properties 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
    • G11B20/10—Digital recording or reproducing
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Debugging And Monitoring (AREA)
TW094114326A 2004-05-06 2005-05-03 Spiral angle controlled information TW200606883A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04101951 2004-05-06

Publications (1)

Publication Number Publication Date
TW200606883A true TW200606883A (en) 2006-02-16

Family

ID=34966274

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094114326A TW200606883A (en) 2004-05-06 2005-05-03 Spiral angle controlled information

Country Status (7)

Country Link
US (1) US20070230298A1 (zh)
EP (1) EP1745481A1 (zh)
JP (1) JP2007536690A (zh)
KR (1) KR20070007388A (zh)
CN (1) CN1950906A (zh)
TW (1) TW200606883A (zh)
WO (1) WO2005109433A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013044037A1 (en) * 2011-09-23 2013-03-28 Thomson Licensing Method and system for disc authentication and security

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1271511A3 (en) * 1994-04-18 2006-10-11 Matsushita Electric Industrial Co., Ltd. Method and apparatus for preventing illegal copying and illegal installation of information on optical recording medium
DE69610861T2 (de) * 1995-10-09 2001-03-15 Matsushita Electric Industrial Co., Ltd. Optische Scheibe und optisches Wiedergabegerät
US6678235B1 (en) * 1999-03-17 2004-01-13 Ricoh Company, Ltd. CLV optical disc, CLV optical disc format, and an optical disc medium recording and reproduction apparatus
JP2000339848A (ja) * 1999-05-26 2000-12-08 Victor Co Of Japan Ltd 情報記録方法及び情報記録装置
JP2003242653A (ja) * 2002-02-18 2003-08-29 Tdk Corp 識別情報の記録方法および多層光記録媒体
US7019937B1 (en) * 2003-06-02 2006-03-28 Maxtor Corporation Method and apparatus for determining a transducer's reference position in a disk drive having a disk surface with spiral servo information written thereon

Also Published As

Publication number Publication date
EP1745481A1 (en) 2007-01-24
CN1950906A (zh) 2007-04-18
JP2007536690A (ja) 2007-12-13
US20070230298A1 (en) 2007-10-04
KR20070007388A (ko) 2007-01-15
WO2005109433A1 (en) 2005-11-17

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