DE3777426D1 - Optisches informationswiedergabegeraet. - Google Patents

Optisches informationswiedergabegeraet.

Info

Publication number: DE3777426D1
Authority: DE; Germany
Prior art keywords: display device; information display; optical information; optical; information
Prior art date: 1986-01-16
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

DE8787300310T

Other languages

English (en)

Inventor

Shinichi Tanaka

Haruo Isaka

Hiroshi Yasuda

Oshiki Itoi

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.)

Panasonic Holdings Corp

Original Assignee

Matsushita Electric Industrial Co Ltd

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.)

1986-01-16

Filing date

1987-01-15

Publication date

1992-04-23

1987-01-15 Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd

1992-04-23 Application granted granted Critical

1992-04-23 Publication of DE3777426D1 publication Critical patent/DE3777426D1/de

2007-01-16 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- 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
- G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
- 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
- G11B7/094—Methods and circuits for servo offset compensation
- 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
- 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
- G11B7/0908—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 focusing only
- G11B7/0909—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 focusing only by astigmatic methods

DE8787300310T 1986-01-16 1987-01-15 Optisches informationswiedergabegeraet. Expired - Lifetime DE3777426D1 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP61006711A JPH063648B2 (ja)	1986-01-16	1986-01-16	光学的情報再生装置

Publications (1)

Publication Number	Publication Date
DE3777426D1 true DE3777426D1 (de)	1992-04-23

Family

ID=11645868

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE8787300310T Expired - Lifetime DE3777426D1 (de)	1986-01-16	1987-01-15	Optisches informationswiedergabegeraet.

Country Status (5)

Country	Link
US (1)	US4785441A (de)
EP (1)	EP0238162B1 (de)
JP (1)	JPH063648B2 (de)
KR (1)	KR900004620B1 (de)
DE (1)	DE3777426D1 (de)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2614482B2 (ja) *	1988-03-11	1997-05-28	三洋電機株式会社	光学式デイスクプレーヤの信号再生回路
US5138594A (en) *	1990-04-20	1992-08-11	International Business Machines Corporation	Reducing amplitude variations of optical disk readback signals and increasing reliability of track-crossing counts
JPH07296395A (ja) *	1994-04-27	1995-11-10	Victor Co Of Japan Ltd	情報再生装置のトラッキング信号検出方法
JP3336778B2 (ja) *	1994-11-25	2002-10-21	松下電器産業株式会社	トラッキング誤差検出装置
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
TW364992B (en) *	1996-04-25	1999-07-21	Toshiba Corp	Optic data regeneration apparatus and control method thereof
DE19627383A1 (de) *	1996-07-06	1998-01-08	Thomson Brandt Gmbh	Gerät zum Lesen oder Beschreiben optischer Aufzeichnungsträger
DE19630887A1 (de) *	1996-07-31	1998-02-05	Thomson Brandt Gmbh	Gerät zum Lesen und/oder Beschreiben optischer Aufzeichnungsträger
US5914925A (en) *	1997-01-10	1999-06-22	Eastman Kodak Company	DRDW differential phase tracking method and apparatus
US6134197A (en) *	1997-04-14	2000-10-17	Matsushita Electric Industrial Co., Ltd.	Optical disk drive apparatus
DE19723542A1 (de)	1997-06-05	1998-12-10	Thomson Brandt Gmbh	Gerät zum Lesen und/oder Beschreiben optischer Aufzeichnungsträger
EP0895228A3 (de) *	1997-07-31	1999-11-24	THOMSON multimedia S.A.	Spurfolgesystem für optische Speichermedien
EP0895227A1 (de) *	1997-07-31	1999-02-03	THOMSON multimedia	Spurfolgesystem für optische Speichermedien
US6088388A (en) *	1997-09-16	2000-07-11	Tektronix, Inc.	Digital fir filters for compensation of nyquist slope in pseudo-synchronous demodulators
JP3544847B2 (ja) *	1998-01-16	2004-07-21	三菱電機株式会社	光学的情報再生方法および装置
TW412738B (en)	1998-03-09	2000-11-21	Koninkl Philips Electronics Nv	Optical read/write apparatus
KR100524902B1 (ko) *	1998-06-12	2005-12-21	삼성전자주식회사	불량 파형 검출 기능을 갖는 트래킹 에러 검출장치
JP2002518781A (ja) *	1998-06-15	2002-06-25	コーニンクレッカフィリップスエレクトロニクスエヌヴィ	光記録担体の走査装置
US6781104B1 (en)	1998-06-16	2004-08-24	Koninklijke Philips Electronics N.V.	Device for scanning an optical record carrier
DE19852291A1 (de) *	1998-11-13	2000-05-18	Thomson Brandt Gmbh	Gerät zum Lesen und/oder Beschreiben optischer Aufzeichnungsträger
JP3439393B2 (ja) *	1999-08-30	2003-08-25	松下電器産業株式会社	トラッキング誤差検出装置
EP1085509A3 (de) *	1999-09-16	2007-01-31	Samsung Electronics Co., Ltd.	Fehlersignalerfassungsvorrichtung und Wiedergabesignalerfassungsvorrichtung eines optischen Aufzeichnungs-/Wiedergabesystems
JP3968984B2 (ja) *	2000-10-05	2007-08-29	三菱電機株式会社	光ディスク再生装置およびディスク種別判別方法
KR100396544B1 (ko) *	2000-11-17	2003-09-02	삼성전자주식회사	광기록재생기기용 에러신호 검출장치
FR2837972B1 (fr) *	2002-04-02	2006-07-21	Thales Sa	Procede d'asservissement radial pour un dispositif de reproduction d'informations d'un disque optique et dispositif de reproduction mettant en oeuvre ce procede
JP2004259403A (ja) *	2003-02-27	2004-09-16	Toshiba Corp	ディスク装置及び信号処理方法
TWI248610B (en) *	2003-04-07	2006-02-01	Mediatek Inc	Method and related apparatus for deriving a tracking error signal
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
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

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2271590B1 (de) *	1974-01-15	1978-12-01	Thomson Brandt
US4057833A (en) *	1974-10-03	1977-11-08	U.S. Philips Corporation	Centering detection system for an apparatus for playing optically readable record carriers
FR2325987A1 (fr) *	1975-09-29	1977-04-22	Thomson Brandt	Dispositif de lecture optique d'un enregistrement
NL8000122A (nl) *	1980-01-09	1981-08-03	Philips Nv	Schijfvormige, optisch uitleesbare registratiedrager als opslagmedium voor datainformatie, inrichting voor het vervaardigen van zo'n registratiedrager, inrichting voor het optekenen en/of weergeven van datainformatie in c.q. van zo'n registratiedrager.
NL8103505A (nl) *	1981-07-24	1983-02-16	Philips Nv	Inrichting voor het puntsgewijs aftasten van een voorwerp.
JPS5891538A (ja) *	1981-11-25	1983-05-31	Hitachi Ltd	光デイスクトラツク追跡装置
JPS58150140A (ja) *	1982-02-27	1983-09-06	Mansei Kogyo Kk	光学的情報再生装置のトラツキング制御装置
JPS6052935A (ja) *	1983-09-02	1985-03-26	Toshiba Corp	トラツキングエラ−信号生成回路

1986
- 1986-01-16 JP JP61006711A patent/JPH063648B2/ja not_active Expired - Lifetime
1987
- 1987-01-15 EP EP87300310A patent/EP0238162B1/de not_active Expired - Lifetime
- 1987-01-15 DE DE8787300310T patent/DE3777426D1/de not_active Expired - Lifetime
- 1987-01-15 KR KR1019870000259A patent/KR900004620B1/ko not_active IP Right Cessation
- 1987-01-16 US US07/004,139 patent/US4785441A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
EP0238162B1 (de)	1992-03-18
US4785441A (en)	1988-11-15
EP0238162A3 (en)	1988-06-22
EP0238162A2 (de)	1987-09-23
JPH063648B2 (ja)	1994-01-12
KR870007491A (ko)	1987-08-19
JPS62165737A (ja)	1987-07-22
KR900004620B1 (ko)	1990-06-30

Publication	Publication Date	Title
DE3777426D1 (de)	1992-04-23	Optisches informationswiedergabegeraet.
DE3785813D1 (de)	1993-06-17	Anzeigevorrichtung.
DE3786614D1 (de)	1993-08-26	Anzeigevorrichtung.
DE3787127D1 (de)	1993-09-30	Datenanzeigesystem.
DE3750855D1 (de)	1995-01-26	Anzeigegerät.
DE3886290D1 (de)	1994-01-27	Anzeigegerät.
DE3854510D1 (de)	1995-11-02	Anzeigegerät.
DE3889966D1 (de)	1994-07-14	Anzeigegerät.
DE3850520D1 (de)	1994-08-11	Anzeigevorrichtung.
DE69022792D1 (de)	1995-11-09	Optisches Aufzeichnungsgerät.
DE3889171D1 (de)	1994-05-26	Bildwiedergabegerät.
DE3789214D1 (de)	1994-04-07	Bildanzeigegerät.
DE3750047D1 (de)	1994-07-21	Projektionswiedergabegerät.
DE3850467D1 (de)	1994-08-04	Anzeigevorrichtung.
DE3852664D1 (de)	1995-02-16	Anzeigegerät.
DE3852276D1 (de)	1995-01-12	Bildwiedergabevorrichtung.
DE3776755D1 (de)	1992-03-26	Optisches datenaufzeichnungsgeraet.
DE3675056D1 (de)	1990-11-29	Optisches informationswiedergabegeraet.
DE3482519D1 (de)	1990-07-19	Optisches informationswiedergabegeraet.
DE3783552D1 (de)	1993-02-25	Magneto-optisches informationswiedergabegeraet.
DE3887078D1 (de)	1994-02-24	Optisches Informationswiedergabegerät.
DE3888735D1 (de)	1994-05-05	Anzeigegerät.
DE3889523D1 (de)	1994-06-16	Optisches Gerät.
DE3882386D1 (de)	1993-08-26	Bildanzeigegeraet.
DE3787388D1 (de)	1993-10-21	Optisches Aufzeichnungsgerät.

Legal Events

Date	Code	Title	Description
1993-04-15	8364	No opposition during term of opposition
1995-05-11	8320	Willingness to grant licences declared (paragraph 23)