DE3273550D1 - Optical signal reproducing system - Google Patents

Optical signal reproducing system

Info

Publication number
DE3273550D1
DE3273550D1 DE8282105546T DE3273550T DE3273550D1 DE 3273550 D1 DE3273550 D1 DE 3273550D1 DE 8282105546 T DE8282105546 T DE 8282105546T DE 3273550 T DE3273550 T DE 3273550T DE 3273550 D1 DE3273550 D1 DE 3273550D1
Authority
DE
Germany
Prior art keywords
optical signal
reproducing system
signal reproducing
optical
signal
Prior art date
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
Application number
DE8282105546T
Other languages
English (en)
Inventor
Mitsushige C O Mitsubish Kondo
Kazuo C O Mitsubishi Den Okada
Kazuo C O Mitsubishi Hirasawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Application granted granted Critical
Publication of DE3273550D1 publication Critical patent/DE3273550D1/de
Expired legal-status Critical Current

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
    • G11B7/09—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
    • G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
    • 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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/013—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track for discrete information, i.e. where each information unit is stored in a distinct discrete location, e.g. digital information formats within a data block or sector
    • 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
    • G11B7/0956—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 to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
DE8282105546T 1981-07-16 1982-06-24 Optical signal reproducing system Expired DE3273550D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56111630A JPS5814332A (ja) 1981-07-16 1981-07-16 光学式情報再生装置

Publications (1)

Publication Number Publication Date
DE3273550D1 true DE3273550D1 (en) 1986-11-06

Family

ID=14566181

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282105546T Expired DE3273550D1 (en) 1981-07-16 1982-06-24 Optical signal reproducing system

Country Status (5)

Country Link
US (1) US4502134A (de)
EP (1) EP0070408B1 (de)
JP (1) JPS5814332A (de)
CA (1) CA1199110A (de)
DE (1) DE3273550D1 (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5817549A (ja) * 1981-07-22 1983-02-01 Hitachi Ltd 光学的トラツク追従装置
JPS58125242A (ja) * 1982-01-22 1983-07-26 Victor Co Of Japan Ltd 光学的情報信号再生装置のトラツキング誤差検出方式
JPS58208944A (ja) * 1982-05-31 1983-12-05 Sony Corp 光学ヘツド制御信号発生装置
JPS5911543A (ja) * 1982-07-10 1984-01-21 Sony Corp 光学式デイスク再生装置
JPS5919250A (ja) * 1982-07-21 1984-01-31 Hitachi Ltd 情報の記録再生装置
JPS59146448A (ja) * 1983-02-10 1984-08-22 Sony Corp 光学式デイスク・プレ−ヤ
JPS59157854A (ja) * 1983-02-28 1984-09-07 Sony Corp 光学式デイスク・プレ−ヤ−の制御装置
JPS609018U (ja) * 1983-06-24 1985-01-22 パイオニア株式会社 光学式記録情報読取装置
JPS6020326A (ja) * 1983-07-14 1985-02-01 Olympus Optical Co Ltd 光学的記録装置
AU575332B2 (en) * 1983-07-29 1988-07-28 Sony Corporation Optical disk pick-up
NL8303564A (nl) * 1983-10-17 1985-05-17 Philips Nv Inrichting voor het weergeven van informatie van een optisch uitleesbare registratiedrager.
JPS60143448A (ja) * 1983-12-29 1985-07-29 Sony Corp スキユ−エラ−検出回路
JPS60120522U (ja) * 1984-01-23 1985-08-14 パイオニア株式会社 光学式記録情報読取装置
AU580793B2 (en) * 1984-01-31 1989-02-02 Sony Corporation Tracking error detector for optical head
JPS60195745A (ja) * 1984-03-16 1985-10-04 Pioneer Electronic Corp トラツキングサ−ボ信号生成方式
JPS6124033A (ja) * 1984-07-13 1986-02-01 Sony Corp 光学式ヘツドのトラツキング誤差検出装置
DE3546795C2 (de) * 1984-10-01 1993-09-23 Mitsubishi Denki K.K., Tokio/Tokyo, Jp
NL8500592A (nl) * 1985-03-04 1986-10-01 Philips Nv Electro-optische inrichting.
DE3618720A1 (de) * 1985-06-05 1986-12-11 Hitachi, Ltd., Tokio/Tokyo Verfahren und vorrichtung zur spurnachfuehrung bei bildplatten
CA1270559A (en) * 1985-10-30 1990-06-19 Shigeo Terashima Tracking circuit for an optical information recording and reproducing apparatus
JPS62109236A (ja) * 1985-11-07 1987-05-20 Teac Co トラツキングサ−ボ装置
JPS63153455A (ja) * 1986-12-18 1988-06-25 Yokogawa Electric Corp 光デイスクテストシステム
JPS63153456A (ja) * 1986-12-18 1988-06-25 Yokogawa Electric Corp 光デイスクテストシステム
DE3714050A1 (de) * 1987-04-28 1988-11-17 Telefunken Fernseh & Rundfunk Verfahren zur korrektur einer fehlstelle in spuren eines aufzeichnungstraegers fuer digitale signale
JP2585281B2 (ja) * 1987-08-19 1997-02-26 株式会社日立製作所 光ディスク装置
JPH04115767U (ja) * 1991-03-26 1992-10-14 ミツミ電機株式会社 コネクタ
US5696756A (en) * 1995-04-14 1997-12-09 Kabushiki Kaishia Toshiba Optical disk having an evaluation pattern for evaluating the optical disk
MY125349A (en) 1999-05-03 2006-07-31 Toshiba Samsung Storage Tech Korea Corporation Automatic tilt compensator and optical recording/reproducing apparatus having the same
JP3709857B2 (ja) * 2002-06-17 2005-10-26 ソニー株式会社 動体検出イメージセンサ

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3909608A (en) * 1972-12-26 1975-09-30 Thomson Csf Reproducing device for the optical reading out of a record carrying an embossed print
US3919697A (en) * 1974-06-26 1975-11-11 Battelle Development Corp Data record tracking using track identifying information in the gaps between recorded data groups
US4094013A (en) * 1975-05-22 1978-06-06 U.S. Philips Corporation Optical storage disk system with disk track guide sectors
JPS54124705A (en) * 1978-03-20 1979-09-27 Teac Corp Optical reproducer
US4180822A (en) * 1978-04-13 1979-12-25 Rca Corporation Optical scanner and recorder
US4232201A (en) * 1978-11-24 1980-11-04 Mca Discovision, Inc. Dithered center tracking system
JPS55163635A (en) * 1979-06-04 1980-12-19 Mitsubishi Electric Corp Optical tracking device
JPS6048809B2 (ja) * 1979-10-16 1985-10-29 パイオニアビデオ株式会社 情報読取装置におけるトラッキングサ−ボ引込装置
JPS5774837A (en) * 1980-10-25 1982-05-11 Olympus Optical Co Ltd Signal detection system of optical information reproducing device
US4406000A (en) * 1981-03-31 1983-09-20 Discovision Associates Tracking system for optical record medium
US4414655A (en) * 1981-03-31 1983-11-08 Discovision Associates Scanning beam control system

Also Published As

Publication number Publication date
JPS5814332A (ja) 1983-01-27
EP0070408B1 (de) 1986-10-01
EP0070408A1 (de) 1983-01-26
CA1199110A (en) 1986-01-07
US4502134A (en) 1985-02-26
JPS6218975B2 (de) 1987-04-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition