HK106195A - Optical scanning device - Google Patents

Optical scanning device

Info

Publication number
HK106195A
HK106195A HK106195A HK106195A HK106195A HK 106195 A HK106195 A HK 106195A HK 106195 A HK106195 A HK 106195A HK 106195 A HK106195 A HK 106195A HK 106195 A HK106195 A HK 106195A
Authority
HK
Hong Kong
Prior art keywords
sensors
tracks
pair
signals
magneto
Prior art date
Application number
HK106195A
Other languages
English (en)
Inventor
Yasuaki Morimoto
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 HK106195A publication Critical patent/HK106195A/xx

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10532—Heads
    • G11B11/10541—Heads for reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B13/00—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for
    • G11B13/04—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically or by magnetisation and optically or by radiation, for changing or sensing optical properties
    • 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
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation
HK106195A 1990-08-25 1995-06-29 Optical scanning device HK106195A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4026875A DE4026875A1 (de) 1990-08-25 1990-08-25 Optische abtastvorrichtung

Publications (1)

Publication Number Publication Date
HK106195A true HK106195A (en) 1995-07-07

Family

ID=6412880

Family Applications (1)

Application Number Title Priority Date Filing Date
HK106195A HK106195A (en) 1990-08-25 1995-06-29 Optical scanning device

Country Status (11)

Country Link
US (1) US5406542A (hu)
EP (1) EP0544731B1 (hu)
JP (1) JP3594594B2 (hu)
KR (1) KR100225305B1 (hu)
DE (2) DE4026875A1 (hu)
ES (1) ES2057914T3 (hu)
HK (1) HK106195A (hu)
HU (1) HUT64638A (hu)
MY (1) MY107859A (hu)
SG (1) SG26379G (hu)
WO (1) WO1992003821A1 (hu)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9300774A (nl) * 1992-05-13 1993-12-01 Gold Star Co Optische opneeminrichting.
JPH07147020A (ja) * 1993-11-24 1995-06-06 Canon Inc 複数ビーム光ヘッド
JP2738337B2 (ja) * 1995-03-31 1998-04-08 日本電気株式会社 光再生媒体の再生方法及び再生装置
DE19643105A1 (de) * 1996-10-21 1998-04-23 Thomson Brandt Gmbh Gerät zum Lesen oder Beschreiben eines optischen Aufzeichnungsträgers
US6292441B1 (en) * 1997-04-16 2001-09-18 Matsushita Electric Industrial Co., Ltd. Optical head device, optical information apparatus, and method for detecting focus error signal
DE19723542A1 (de) * 1997-06-05 1998-12-10 Thomson Brandt Gmbh Gerät zum Lesen und/oder Beschreiben optischer Aufzeichnungsträger
DE19756457A1 (de) * 1997-12-18 1999-06-24 Thomson Brandt Gmbh Verfahren zur Korrektur eines Spurfehlersignals beim optischen Abtasten eines plattenförmigen Aufzeichnungsträgers
DE19825208A1 (de) * 1998-04-14 1999-10-21 Thomson Brandt Gmbh Gerät zum Lesen oder Beschreiben optischer Aufzeichnungsträger
CN1112685C (zh) 1998-04-14 2003-06-25 德国汤姆森-布兰特有限公司 读写光学记录介质的设备
KR100906472B1 (ko) * 2002-05-21 2009-07-08 삼성전자주식회사 다중 검출기를 이용한 광기록매체 데이터 재생 장치
CN1689084A (zh) * 2002-10-15 2005-10-26 皇家飞利浦电子股份有限公司 光学扫描设备
CN1950897A (zh) * 2004-04-30 2007-04-18 皇家飞利浦电子股份有限公司 具有专用的聚焦跟踪光束的光学读出器/写入器
KR100951110B1 (ko) * 2007-11-26 2010-04-07 케이맥(주) 라인스캔방식 고분해능 편광측정장치
EP2141699A1 (en) 2008-06-30 2010-01-06 Deutsche Thomson OHG Apparatus for reading from an optical recording medium
US9506015B2 (en) 2014-11-21 2016-11-29 Ecolab Usa Inc. Compositions to boost fabric softener performance

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483664B1 (fr) * 1980-05-28 1985-06-28 Thomson Csf Dispositif optique d'enregistrement-lecture sur un support d'informations et systeme de memoire optique comprenant un tel dispositif
US4858218A (en) * 1984-09-12 1989-08-15 Nikon Corporation Optical recording medium and reproducing apparatus
JPS61199254A (ja) * 1985-02-27 1986-09-03 ゼロツクス　コ−ポレ−シヨン 光デイスク装置
FR2613866B1 (fr) * 1987-04-07 1994-01-14 Mitsubishi Denki Kk Appareil d'enregistrement et de reproduction optique d'information
DE3732944A1 (de) * 1987-09-30 1989-04-13 Thomson Brandt Gmbh Optische abtastvorrichtung
DE3732875A1 (de) * 1987-09-30 1989-04-20 Thomson Brandt Gmbh Optischer aufzeichnungstraeger
US5073888A (en) * 1988-04-21 1991-12-17 Ricoh Company, Ltd. Optical pickup device

Also Published As

Publication number Publication date
SG26379G (en) 1995-09-18
JPH06500192A (ja) 1994-01-06
DE4026875A1 (de) 1992-02-27
HUT64638A (en) 1994-01-28
US5406542A (en) 1995-04-11
WO1992003821A1 (de) 1992-03-05
ES2057914T3 (es) 1994-10-16
EP0544731A1 (de) 1993-06-09
HU9203592D0 (en) 1993-03-01
MY107859A (en) 1996-06-29
KR100225305B1 (ko) 1999-10-15
DE59102083D1 (de) 1994-08-04
KR930701808A (ko) 1993-06-12
EP0544731B1 (de) 1994-06-29
JP3594594B2 (ja) 2004-12-02

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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)