DE69729851D1 - Schreibschutz für Wiederbeschreibbare CDs und DVDs - Google Patents

Schreibschutz für Wiederbeschreibbare CDs und DVDs

Info

Publication number
DE69729851D1
DE69729851D1 DE69729851T DE69729851T DE69729851D1 DE 69729851 D1 DE69729851 D1 DE 69729851D1 DE 69729851 T DE69729851 T DE 69729851T DE 69729851 T DE69729851 T DE 69729851T DE 69729851 D1 DE69729851 D1 DE 69729851D1
Authority
DE
Germany
Prior art keywords
dvds
write protection
rewritable cds
rewritable
cds
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69729851T
Other languages
English (en)
Other versions
DE69729851T2 (de
Inventor
Lawrence N Taugher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hewlett Packard Development Co LP
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Application granted granted Critical
Publication of DE69729851D1 publication Critical patent/DE69729851D1/de
Publication of DE69729851T2 publication Critical patent/DE69729851T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • G11B23/288—Protecting disks from being written or overwritten

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Head (AREA)
  • Manufacturing Optical Record Carriers (AREA)
DE69729851T 1997-03-25 1997-12-02 Schreibschutz für Wiederbeschreibbare CDs und DVDs Expired - Lifetime DE69729851T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US823823 1997-03-25
US08/823,823 US6885627B1 (en) 1997-03-25 1997-03-25 Write protect for rewritable compact disks and digital video disks

Publications (2)

Publication Number Publication Date
DE69729851D1 true DE69729851D1 (de) 2004-08-19
DE69729851T2 DE69729851T2 (de) 2005-07-21

Family

ID=25239835

Family Applications (3)

Application Number Title Priority Date Filing Date
DE69729851T Expired - Lifetime DE69729851T2 (de) 1997-03-25 1997-12-02 Schreibschutz für Wiederbeschreibbare CDs und DVDs
DE69739804T Expired - Lifetime DE69739804D1 (de) 1997-03-25 1997-12-02 Schreibschutz für wiederbeschreibbareCompactdisks und numerische Videodisks
DE69739937T Expired - Lifetime DE69739937D1 (de) 1997-03-25 1997-12-02 Schreibschutz für wiederbeschreibbare Compactdisks und numeriche Videodisks

Family Applications After (2)

Application Number Title Priority Date Filing Date
DE69739804T Expired - Lifetime DE69739804D1 (de) 1997-03-25 1997-12-02 Schreibschutz für wiederbeschreibbareCompactdisks und numerische Videodisks
DE69739937T Expired - Lifetime DE69739937D1 (de) 1997-03-25 1997-12-02 Schreibschutz für wiederbeschreibbare Compactdisks und numeriche Videodisks

Country Status (4)

Country Link
US (1) US6885627B1 (de)
EP (3) EP1361576B1 (de)
JP (1) JPH10269686A (de)
DE (3) DE69729851T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6151294A (en) * 1997-08-27 2000-11-21 Parlog, Iii; John Write protect component for re-writable compact disc
US6905750B2 (en) 1998-06-22 2005-06-14 Target Technology Company, Llc Metal alloys for the reflective or the semi-reflective layer of an optical storage medium
US6236638B1 (en) * 1998-09-23 2001-05-22 Hewlett-Packard Company Device to install compact disk media write protect device
US7394738B2 (en) * 2002-03-20 2008-07-01 Hewlett-Packard Development Company, L.P. Identifying optical disc properties from information read from label side of optical disc
JP3827154B2 (ja) * 2002-04-17 2006-09-27 船井電機株式会社 対物レンズユニット
US20050180306A1 (en) * 2004-01-29 2005-08-18 Valley Jeffrey M. Disk labeling kit and method
TWI281148B (en) * 2004-03-26 2007-05-11 Lite On It Corp A down-speed recording method for recordable optical drive
US7596072B2 (en) * 2004-12-22 2009-09-29 Seagate Technology Llc Optical recording using a waveguide structure and a phase change medium
JP7409043B2 (ja) * 2019-11-25 2024-01-09 セイコーエプソン株式会社 メディア処理装置、メディア処理装置の制御方法、及び、プログラム

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6085724U (ja) * 1983-11-17 1985-06-13 シャープ株式会社 光メモリ円板
JPS6459665A (en) 1987-08-31 1989-03-07 Matsushita Electric Ind Co Ltd Optical disk device
GB2219886A (en) 1988-06-15 1989-12-20 Philips Nv Recording and playback apparatus
ES2081830T3 (es) 1988-06-15 1996-03-16 Philips Electronics Nv Aparato reproductor y/o grabador.
JPH0495287A (ja) 1990-08-11 1992-03-27 Sharp Corp 光ディスクメモリ
JPH04105269A (ja) * 1990-08-24 1992-04-07 Sony Corp ディスク記録装置及びディスク記録再生装置
DE69227175T2 (de) * 1991-12-20 1999-04-29 Eastman Kodak Co., Rochester, N.Y. Aufzeichnungsträger für ein optisches Informationssystem mit eingebettetem Identifikationskode
JP3075632B2 (ja) 1992-02-27 2000-08-14 パイオニア株式会社 光ディスクプレーヤ
JP3553094B2 (ja) 1992-07-28 2004-08-11 パイオニア株式会社 光学式記録再生装置
US5543001A (en) 1994-08-08 1996-08-06 Micropatent Method for the placement of self-adhesive labels on compact disks
JPH08147702A (ja) * 1994-11-11 1996-06-07 Mitsumi Electric Co Ltd 光ディスク書き込み方法
JPH0963061A (ja) * 1995-08-25 1997-03-07 Pioneer Electron Corp 光記録媒体とその情報記録方法および情報再生方法
JPH0997473A (ja) 1995-09-29 1997-04-08 Nec Corp 光ディスク書換え禁止シール
JPH09120621A (ja) 1995-10-20 1997-05-06 Ricoh Co Ltd 光ディスクおよび光ディスク記録再生装置
US6081501A (en) * 1997-09-18 2000-06-27 Hewlett-Packard Company Attachment system for write-protect ring for optical disk
US6236638B1 (en) * 1998-09-23 2001-05-22 Hewlett-Packard Company Device to install compact disk media write protect device
TW475769U (en) * 1999-02-11 2002-02-01 Shu-Shiun Chen Positioning structure of disk label
US6192025B1 (en) * 1999-05-05 2001-02-20 Yong E. Chen Structure for protecting reading area of compact disc and device for applying same

Also Published As

Publication number Publication date
DE69739804D1 (de) 2010-04-22
EP1363290A2 (de) 2003-11-19
DE69739937D1 (de) 2010-08-26
EP1363290A3 (de) 2009-05-06
EP1361576A3 (de) 2009-05-06
JPH10269686A (ja) 1998-10-09
EP0867878A1 (de) 1998-09-30
EP1363290B1 (de) 2010-07-14
EP1361576B1 (de) 2010-03-10
DE69729851T2 (de) 2005-07-21
EP1361576A2 (de) 2003-11-12
US6885627B1 (en) 2005-04-26
EP0867878B1 (de) 2004-07-14

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, TE

8364 No opposition during term of opposition