NL8902455A - Optische registratie- en reproductie-inrichting. - Google Patents

Optische registratie- en reproductie-inrichting. Download PDF

Info

Publication number
NL8902455A
NL8902455A NL8902455A NL8902455A NL8902455A NL 8902455 A NL8902455 A NL 8902455A NL 8902455 A NL8902455 A NL 8902455A NL 8902455 A NL8902455 A NL 8902455A NL 8902455 A NL8902455 A NL 8902455A
Authority
NL
Netherlands
Prior art keywords
signal
recording
area
output
amplitude
Prior art date
Application number
NL8902455A
Other languages
English (en)
Dutch (nl)
Original Assignee
Hitachi 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.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of NL8902455A publication Critical patent/NL8902455A/nl

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/10009Improvement or modification of read or write signals
    • G11B20/10046Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • G11B20/10203Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter baseline correction
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02Control of operating function, e.g. switching from recording to reproducing
    • G11B19/04Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36Monitoring, i.e. supervising the progress of recording or reproducing
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/002Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0037Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs
    • G11B7/00375Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs arrangements for detection of physical defects, e.g. of recording layer
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/004Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/25Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537Optical discs
    • G11B2220/2587Laser Discs; Optical disc using analog recording

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
NL8902455A 1988-10-03 1989-10-03 Optische registratie- en reproductie-inrichting. NL8902455A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP24747488 1988-10-03
JP63247474A JP2703576B2 (ja) 1988-10-03 1988-10-03 光デイスク装置

Publications (1)

Publication Number Publication Date
NL8902455A true NL8902455A (nl) 1990-05-01

Family

ID=17163993

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8902455A NL8902455A (nl) 1988-10-03 1989-10-03 Optische registratie- en reproductie-inrichting.

Country Status (4)

Country Link
US (1) US5168488A (de)
JP (1) JP2703576B2 (de)
DE (1) DE3933018A1 (de)
NL (1) NL8902455A (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5696756A (en) * 1995-04-14 1997-12-09 Kabushiki Kaishia Toshiba Optical disk having an evaluation pattern for evaluating the optical disk
DE19930513A1 (de) * 1999-07-05 2001-01-11 Thomson Brandt Gmbh Gerät zum Abtasten optischer Aufzeichnungsträger
JP2006521653A (ja) * 2003-03-24 2006-09-21 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 焦点オフセット領域を有する光ディスク
JP2006025293A (ja) * 2004-07-09 2006-01-26 Matsushita Electric Ind Co Ltd 信号伝送装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4564929A (en) * 1981-11-25 1986-01-14 Hitachi, Ltd. Information recording and reproducing apparatus with tracking control by sampling
FR2523347B1 (fr) * 1982-03-12 1988-11-04 Thomson Csf Support d'information mobile pregrave et dispositif optique de suivi de piste mettant en oeuvre un tel support
FR2548814B1 (fr) * 1983-07-04 1986-05-02 Thomson Csf Procede et dispositif de remise en forme d'un signal de lecture de donnees enregistrees sur disque optique
JPS6113450A (ja) * 1984-06-28 1986-01-21 Matsushita Electric Ind Co Ltd 光学式情報記録再生装置
FR2567673B1 (fr) * 1984-07-10 1986-11-07 Thomson Alcatel Gigadisc Support d'information inscriptible optiquement selon une piste definie par des motifs de pregravure et dispositif optique de suivi de piste mettant en oeuvre un tel support
JPS62143276A (ja) * 1985-12-18 1987-06-26 Hitachi Ltd デイスククリ−ナ機構
JPH0760573B2 (ja) * 1986-01-27 1995-06-28 株式会社日立製作所 回転形記憶装置の書込み制御方式
DE3770283D1 (de) * 1986-02-07 1991-07-04 Sharp Kk Optisches speichergeraet.

Also Published As

Publication number Publication date
JPH0296927A (ja) 1990-04-09
DE3933018C2 (de) 1992-05-14
US5168488A (en) 1992-12-01
JP2703576B2 (ja) 1998-01-26
DE3933018A1 (de) 1990-04-12

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Legal Events

Date Code Title Description
A1A A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
BI The patent application has been withdrawn