NL9000131A - Lees- en/of schrijfinrichting. - Google Patents

Lees- en/of schrijfinrichting. Download PDF

Info

Publication number
NL9000131A
NL9000131A NL9000131A NL9000131A NL9000131A NL 9000131 A NL9000131 A NL 9000131A NL 9000131 A NL9000131 A NL 9000131A NL 9000131 A NL9000131 A NL 9000131A NL 9000131 A NL9000131 A NL 9000131A
Authority
NL
Netherlands
Prior art keywords
signal
speed
tracks
blocking
read
Prior art date
Application number
NL9000131A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips 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 Philips Nv filed Critical Philips Nv
Priority to NL9000131A priority Critical patent/NL9000131A/nl
Priority to US07/595,056 priority patent/US5140574A/en
Priority to EP90203476A priority patent/EP0437891B1/en
Priority to DE69019136T priority patent/DE69019136T2/de
Priority to JP04140591A priority patent/JP3147912B2/ja
Priority to KR1019910000818A priority patent/KR100231677B1/ko
Publication of NL9000131A publication Critical patent/NL9000131A/nl

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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/08—Track changing or selecting during transducing operation
    • G11B21/081—Access to indexed tracks or parts of continuous track
    • G11B21/083—Access to indexed tracks or parts of continuous track on discs
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08541—Methods for track change, selection or preliminary positioning by moving the head involving track counting to determine position

Landscapes

  • Moving Of Head For Track Selection And Changing (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)
NL9000131A 1990-01-19 1990-01-19 Lees- en/of schrijfinrichting. NL9000131A (nl)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL9000131A NL9000131A (nl) 1990-01-19 1990-01-19 Lees- en/of schrijfinrichting.
US07/595,056 US5140574A (en) 1990-01-19 1990-10-10 Read and/or write device
EP90203476A EP0437891B1 (en) 1990-01-19 1990-12-21 Read and/or write device
DE69019136T DE69019136T2 (de) 1990-01-19 1990-12-21 Schreib- und/oder Leseanordnung.
JP04140591A JP3147912B2 (ja) 1990-01-19 1991-01-18 読取り及び／又は書込みを行う装置
KR1019910000818A KR100231677B1 (ko) 1990-01-19 1991-01-18 판독 및 기록 장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9000131A NL9000131A (nl) 1990-01-19 1990-01-19 Lees- en/of schrijfinrichting.
NL9000131 1990-01-19

Publications (1)

Publication Number Publication Date
NL9000131A true NL9000131A (nl) 1991-08-16

Family

ID=19856442

Family Applications (1)

Application Number Title Priority Date Filing Date
NL9000131A NL9000131A (nl) 1990-01-19 1990-01-19 Lees- en/of schrijfinrichting.

Country Status (6)

Country Link
US (1) US5140574A (ja)
EP (1) EP0437891B1 (ja)
JP (1) JP3147912B2 (ja)
KR (1) KR100231677B1 (ja)
DE (1) DE69019136T2 (ja)
NL (1) NL9000131A (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05205416A (ja) * 1991-10-18 1993-08-13 Internatl Business Mach Corp <Ibm> 媒体欠陥によるトラッキング・エラー信号異常のマスキング装置および方法
JP2940891B2 (ja) * 1991-12-12 1999-08-25 富士通株式会社 光ディスクのトラック検索装置
SG80591A1 (en) * 1998-04-25 2001-05-22 Texas Instr Singapore Pte Ltd Track counter
KR100580167B1 (ko) 2002-01-22 2006-05-16 삼성전자주식회사 트랙 횡단 신호로부터 노이즈를 제거하는 방법, 이에기초한 광 디스크 드라이브 제어 방법, 노이즈 제거 장치,광 디스크 드라이브, 및 재생 장치
TWI229331B (en) * 2003-10-22 2005-03-11 Mediatek Inc Compensation method for detecting seeking speed of optical disk device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3508421A1 (de) * 1985-03-09 1986-09-11 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Schaltungsanordnung fuer ein abspielgeraet von audio- und / oder videoplatten
DE3618137A1 (de) * 1985-05-31 1986-12-11 Hitachi, Ltd., Tokio/Tokyo Bildplatten-zugriffsverfahren und bildplattenspeicher
JP2508477B2 (ja) * 1987-02-02 1996-06-19 ソニー株式会社 デイスク装置
JPS63273219A (ja) * 1987-04-30 1988-11-10 Mitsubishi Electric Corp 光デイスク駆動装置
US4855977A (en) * 1987-07-27 1989-08-08 Laser Magnetic Storage International Company Track seeking apparatus and method using sampled information
JPS6460879A (en) * 1987-09-01 1989-03-07 Pioneer Electronic Corp Scanning method in disk player
JPH01271980A (ja) * 1988-04-22 1989-10-31 Toshiba Corp ディスク装置
US5146440A (en) * 1988-08-29 1992-09-08 Matsushita Electric Industrial Co., Ltd. Track search apparatus

Also Published As

Publication number Publication date
EP0437891A1 (en) 1991-07-24
DE69019136T2 (de) 1995-11-30
JPH04212722A (ja) 1992-08-04
KR100231677B1 (ko) 1999-11-15
KR910014893A (ko) 1991-08-31
US5140574A (en) 1992-08-18
JP3147912B2 (ja) 2001-03-19
EP0437891B1 (en) 1995-05-03
DE69019136D1 (de) 1995-06-08

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
BV The patent application has lapsed