DE3318133C2 - - Google Patents

Info

Publication number
DE3318133C2
DE3318133C2 DE3318133A DE3318133A DE3318133C2 DE 3318133 C2 DE3318133 C2 DE 3318133C2 DE 3318133 A DE3318133 A DE 3318133A DE 3318133 A DE3318133 A DE 3318133A DE 3318133 C2 DE3318133 C2 DE 3318133C2
Authority
DE
Germany
Prior art keywords
signal
tracker
light beam
light
servo drive
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
DE3318133A
Other languages
German (de)
English (en)
Other versions
DE3318133A1 (de
Inventor
Toru Akiyama
Takashi Tokorozawa Saitama Jp Okano
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.)
Pioneer Video Corp
Original Assignee
Pioneer Video 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 Pioneer Video Corp filed Critical Pioneer Video Corp
Publication of DE3318133A1 publication Critical patent/DE3318133A1/de
Application granted granted Critical
Publication of DE3318133C2 publication Critical patent/DE3318133C2/de
Granted 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
    • G11B7/0901—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 for track following only
    • G11B7/0903—Multi-beam tracking systems
    • 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
    • G11B21/03—Driving or moving of heads for correcting time base error during transducing operation, by driving or moving the head in a direction more or less parallel to the direction of travel of the recording medium, e.g. tangential direction on a rotating disc
    • 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
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
    • 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
    • G11B7/081—Disposition or mounting of heads or light sources relatively to record carriers for time base error correction by moving the light beam

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
DE3318133A 1982-05-19 1983-05-18 Datenlesegeraet Granted DE3318133A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57084407A JPS58200473A (ja) 1982-05-19 1982-05-19 情報読取装置

Publications (2)

Publication Number Publication Date
DE3318133A1 DE3318133A1 (de) 1983-11-24
DE3318133C2 true DE3318133C2 (en, 2012) 1988-06-23

Family

ID=13829730

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3318133A Granted DE3318133A1 (de) 1982-05-19 1983-05-18 Datenlesegeraet

Country Status (4)

Country Link
US (1) US4965781A (en, 2012)
JP (1) JPS58200473A (en, 2012)
DE (1) DE3318133A1 (en, 2012)
GB (1) GB2121987B (en, 2012)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6151623A (ja) * 1984-08-20 1986-03-14 Sanyo Electric Co Ltd 情報記録再生装置
JP2764960B2 (ja) * 1988-11-16 1998-06-11 松下電器産業株式会社 記録再生方法
WO2005083693A1 (ja) * 2004-03-01 2005-09-09 Pioneer Corporation トラッキングエラー信号生成装置およびトラッキングエラー信号生成方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2418195A1 (de) * 1974-04-13 1975-11-06 Bosch Gmbh Robert Verfahren zur fuehrung eines lichtstrahls auf einer signalspur
NL7509906A (nl) * 1975-08-21 1977-02-23 Philips Nv Inrichting voor het uitlezen van een schijfvor- mige registratiedrager.
US4065786A (en) * 1975-09-30 1977-12-27 Rca Corporation Videodisc playback system
US4290132A (en) * 1977-05-11 1981-09-15 Pioneer Electronic Corporation Focus servo device for use in an optical information read-out device
JPS6038771B2 (ja) * 1978-06-19 1985-09-03 パイオニア株式会社 光学式情報読取装置のサ−ボ装置
NL7808638A (nl) * 1978-08-22 1980-02-26 Philips Nv Inrichting voor het uitlezen van een schijfvormige re- gistratiedrager.
NL7810386A (nl) * 1978-10-17 1980-04-21 Philips Nv Optische leesinrichting voor het uitlezen van een schijfvormige registratiedrager.
NL7812111A (nl) * 1978-12-13 1980-06-17 Philips Nv Inrichting voor het optisch uitlezen van een schijf- vormige registratiedrager, in het bijzonder het snel opzoeken van een gewenst programmagedeelte.
US4243850A (en) * 1979-02-07 1981-01-06 Eastman Kodak Company Apparatus for tracking a record track on a video disc
JPS6215864Y2 (en, 2012) * 1980-08-04 1987-04-22
US4484319A (en) * 1980-09-19 1984-11-20 Matsushita Electric Industrial Co., Ltd. Apparatus for locating a track on disc-like optical information carriers
JPS5774837A (en) * 1980-10-25 1982-05-11 Olympus Optical Co Ltd Signal detection system of optical information reproducing device
JPS57113428A (en) * 1980-12-29 1982-07-14 Pioneer Video Corp Focus servo device
JPS57181433A (en) * 1981-04-22 1982-11-08 Olympus Optical Co Ltd Tracking system for optical disc reproducer
US4432083A (en) * 1982-02-17 1984-02-14 Burroughs Corporation Optical memory system having track following

Also Published As

Publication number Publication date
GB8313518D0 (en) 1983-06-22
GB2121987A (en) 1984-01-04
JPH0335733B2 (en, 2012) 1991-05-29
DE3318133A1 (de) 1983-11-24
JPS58200473A (ja) 1983-11-22
US4965781A (en) 1990-10-23
GB2121987B (en) 1986-02-26

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8120 Willingness to grant licences paragraph 23
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee