DE69229304D1 - Gerät zur Aufzeichnung/Wiedergabe von optischem Information- und Aufzeichnungsmedium - Google Patents

Gerät zur Aufzeichnung/Wiedergabe von optischem Information- und Aufzeichnungsmedium

Info

Publication number: DE69229304D1
Authority: DE; Germany
Prior art keywords: recording; optical information; reproducing optical; recording media; media
Prior art date: 1991-07-15
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 - Fee Related

Application number

DE69229304T

Other languages

English (en)

Other versions

DE69229304T2 (de

Inventor

Chikashi Inokuchi

Mayumi Hironaka

Kenzou Ishibashi

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.)

1991-07-15

Filing date

1992-07-14

Publication date

1999-07-08

1992-07-14 Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd

1999-07-08 Application granted granted Critical

1999-07-08 Publication of DE69229304D1 publication Critical patent/DE69229304D1/de

2000-02-24 Publication of DE69229304T2 publication Critical patent/DE69229304T2/de

2012-07-15 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

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
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- 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
- G11B20/10009—Improvement or modification of read or write signals
- 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
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1816—Testing
- G11B20/182—Testing using test patterns
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/005—Reproducing
- 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
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1816—Testing
- G11B2020/183—Testing wherein at least one additional attempt is made to read or write the data when a first attempt is unsuccessful

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Optical Recording Or Reproduction (AREA)

DE69229304T 1991-07-15 1992-07-14 Gerät zur Aufzeichnung/Wiedergabe von optischem Information- und Aufzeichnungsmedium Expired - Fee Related DE69229304T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP17369991		1991-07-15

Publications (2)

Publication Number	Publication Date
DE69229304D1 true DE69229304D1 (de)	1999-07-08
DE69229304T2 DE69229304T2 (de)	2000-02-24

Family

ID=15965486

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69229304T Expired - Fee Related DE69229304T2 (de)	1991-07-15	1992-07-14	Gerät zur Aufzeichnung/Wiedergabe von optischem Information- und Aufzeichnungsmedium

Country Status (4)

Country	Link
US (1)	US5600616A (de)
EP (1)	EP0523952B1 (de)
CA (1)	CA2073804C (de)
DE (1)	DE69229304T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5424881A (en)	1993-02-01	1995-06-13	Cirrus Logic, Inc.	Synchronous read channel
JP3737293B2 (ja)	1998-10-14	2006-01-18	アルプス電気株式会社	ディスク装置
JP3702817B2 (ja) *	2000-09-13	2005-10-05	ティアック株式会社	光ディスクドライブ装置
JP2009087464A (ja) *	2007-09-28	2009-04-23	Toshiba Corp	光ディスク装置およびトラッキング制御方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2301133A1 (fr) *	1975-02-14	1976-09-10	Thomson Csf	Dispo
JPS60175111A (ja) *	1984-02-20	1985-09-09	Fanuc Ltd	ロボツト制御装置
JPS6419565A (en) *	1987-07-13	1989-01-23	Canon Kk	Information recording and reproducing device
JPH01107377A (ja) *	1987-10-20	1989-04-25	Nec Corp	光記憶装置
JP2513747B2 (ja) *	1987-12-17	1996-07-03	パイオニア株式会社	デ―タ記録再生方法
JP2554719B2 (ja) *	1988-09-30	1996-11-13	株式会社東芝	記録データ読取り方式
JPH02128325A (ja) *	1988-11-08	1990-05-16	Fujitsu Ltd	光学的記憶装置
JPH02166670A (ja) *	1988-12-20	1990-06-27	Tokico Ltd	磁気ディスク装置
DE69030962T2 (de) *	1989-03-13	1998-01-02	Sony Corp	Automatischer Entzerrer
JPH02265025A (ja) *	1989-04-05	1990-10-29	Pioneer Electron Corp	サーボループのループゲイン設定方法
JP2667522B2 (ja) *	1989-07-06	1997-10-27	株式会社日立製作所	光ディスク装置
JPH0430331A (ja) *	1990-05-24	1992-02-03	Matsushita Electric Ind Co Ltd	光記録情報のリードベリファイ方法、ならびにリードベリファイ用再生回路
JP3282180B2 (ja) *	1990-08-28	2002-05-13	ソニー株式会社	磁気記録再生装置
US5136569A (en) *	1990-09-28	1992-08-04	International Business Machines Corporation	Optical disk recorder for diverse media types and having a predetermined initialization or start-up procedure

1992
- 1992-07-14 CA CA002073804A patent/CA2073804C/en not_active Expired - Fee Related
- 1992-07-14 EP EP92306423A patent/EP0523952B1/de not_active Expired - Lifetime
- 1992-07-14 DE DE69229304T patent/DE69229304T2/de not_active Expired - Fee Related
1994
- 1994-04-06 US US08/224,099 patent/US5600616A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
CA2073804A1 (en)	1993-01-16
DE69229304T2 (de)	2000-02-24
EP0523952A3 (en)	1993-12-01
EP0523952A2 (de)	1993-01-20
US5600616A (en)	1997-02-04
EP0523952B1 (de)	1999-06-02
CA2073804C (en)	1998-12-22

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Legal Events

Date	Code	Title	Description
2000-06-29	8364	No opposition during term of opposition
2007-05-16	8339	Ceased/non-payment of the annual fee