HK1025421A1 - Apparatus for reading from and/or writing to optical recording media. - Google Patents

Apparatus for reading from and/or writing to optical recording media.

Info

Publication number
HK1025421A1
HK1025421A1 HK00104639A HK00104639A HK1025421A1 HK 1025421 A1 HK1025421 A1 HK 1025421A1 HK 00104639 A HK00104639 A HK 00104639A HK 00104639 A HK00104639 A HK 00104639A HK 1025421 A1 HK1025421 A1 HK 1025421A1
Authority
HK
Hong Kong
Prior art keywords
writing
reading
optical recording
recording media
media
Prior art date
Application number
HK00104639A
Other languages
English (en)
Inventor
Christian Buechler
Steffen Lehr
Original Assignee
Thomson Brandt Gmbh
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 Thomson Brandt Gmbh filed Critical Thomson Brandt Gmbh
Publication of HK1025421A1 publication Critical patent/HK1025421A1/xx

Links

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
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
    • G11B7/0906—Differential phase difference systems
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
HK00104639A 1998-11-13 2000-07-26 Apparatus for reading from and/or writing to optical recording media. HK1025421A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19852291A DE19852291A1 (de) 1998-11-13 1998-11-13 Gerät zum Lesen und/oder Beschreiben optischer Aufzeichnungsträger

Publications (1)

Publication Number Publication Date
HK1025421A1 true HK1025421A1 (en) 2000-11-10

Family

ID=7887632

Family Applications (1)

Application Number Title Priority Date Filing Date
HK00104639A HK1025421A1 (en) 1998-11-13 2000-07-26 Apparatus for reading from and/or writing to optical recording media.

Country Status (11)

Country Link
US (1) US7170833B2 (zh)
EP (1) EP1001411B1 (zh)
JP (1) JP3965842B2 (zh)
KR (1) KR100671991B1 (zh)
CN (1) CN1197061C (zh)
DE (2) DE19852291A1 (zh)
HK (1) HK1025421A1 (zh)
ID (1) ID23831A (zh)
MY (1) MY124626A (zh)
PL (1) PL192564B1 (zh)
RU (1) RU2243598C2 (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100629500B1 (ko) * 2002-07-31 2006-09-28 삼성전자주식회사 트랙킹 에러신호 생성장치
TWI248610B (en) * 2003-04-07 2006-02-01 Mediatek Inc Method and related apparatus for deriving a tracking error signal
GB0309052D0 (en) * 2003-04-22 2003-05-28 Koninkl Philips Electronics Nv Apparatus and related method for monitoring tracking of an optical disk
US7512043B2 (en) * 2004-07-08 2009-03-31 Realtek Semiconductor Corp. Apparatus and method for generating a tracking error signal in an optical disc drive
US7633842B2 (en) * 2004-07-08 2009-12-15 Realtek Semiconductor Corp. Apparatus for generating tracking error signal in optical disc drive
US7583569B2 (en) * 2004-07-08 2009-09-01 Realtek Semiconductor Corp. Apparatus and related method for generating a tracking error signal in an optical disc drive
TWI258740B (en) * 2004-07-08 2006-07-21 Realtek Semiconductor Corp Apparatus and method for generating a tracking error signal in an optical disc drive
JP4327693B2 (ja) * 2004-09-30 2009-09-09 株式会社東芝 光ディスク装置及び光検知信号処理方法
CN101189667B (zh) * 2005-06-01 2011-12-21 松下电器产业株式会社 相位误差检测装置
KR100712520B1 (ko) * 2005-07-27 2007-04-30 삼성전자주식회사 다중위상클럭을 이용하여 트래킹에러 신호를 검출하는 장치및 방법

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659229A (en) * 1970-11-02 1972-04-25 Gen Electric System and method for automatic adaptive equalization of communication channels
NL8303560A (nl) * 1983-10-17 1985-05-17 Philips Nv Inrichting voor het weergeven van informatie van een optisch uitleesbare registratiedrager.
JPH063648B2 (ja) * 1986-01-16 1994-01-12 松下電器産業株式会社 光学的情報再生装置
JPH0628697A (ja) * 1992-07-07 1994-02-04 Pioneer Electron Corp 光ディスクプレーヤ
JPH09288832A (ja) * 1996-04-22 1997-11-04 Toshiba Corp トラッキングエラー信号生成回路
DE19627383A1 (de) * 1996-07-06 1998-01-08 Thomson Brandt Gmbh Gerät zum Lesen oder Beschreiben optischer Aufzeichnungsträger
JP3847910B2 (ja) * 1996-07-30 2006-11-22 株式会社東芝 光ディスク再生システムのトラッキング制御装置
JPH10112042A (ja) * 1996-10-04 1998-04-28 Hitachi Ltd 光学的情報再生装置
JPH10198995A (ja) * 1996-12-27 1998-07-31 Victor Co Of Japan Ltd トラッキングエラー信号生成回路及び位相差検出回路
DE19723542A1 (de) * 1997-06-05 1998-12-10 Thomson Brandt Gmbh Gerät zum Lesen und/oder Beschreiben optischer Aufzeichnungsträger

Also Published As

Publication number Publication date
JP3965842B2 (ja) 2007-08-29
EP1001411A1 (en) 2000-05-17
PL192564B1 (pl) 2006-11-30
DE19852291A1 (de) 2000-05-18
US20040151089A1 (en) 2004-08-05
PL336518A1 (en) 2000-05-22
EP1001411B1 (en) 2008-06-18
JP2000155964A (ja) 2000-06-06
KR20000035184A (ko) 2000-06-26
CN1254912A (zh) 2000-05-31
KR100671991B1 (ko) 2007-01-19
RU2243598C2 (ru) 2004-12-27
US7170833B2 (en) 2007-01-30
CN1197061C (zh) 2005-04-13
DE69938919D1 (de) 2008-07-31
MY124626A (en) 2006-06-30
ID23831A (id) 2000-05-17

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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: 20101110