GB2121987B - Data reading device - Google Patents

Data reading device

Info

Publication number
GB2121987B
GB2121987B GB08313518A GB8313518A GB2121987B GB 2121987 B GB2121987 B GB 2121987B GB 08313518 A GB08313518 A GB 08313518A GB 8313518 A GB8313518 A GB 8313518A GB 2121987 B GB2121987 B GB 2121987B
Authority
GB
United Kingdom
Prior art keywords
reading device
data reading
data
reading
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
GB08313518A
Other languages
English (en)
Other versions
GB8313518D0 (en
GB2121987A (en
Inventor
Toru Akiyama
Takashi 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 GB8313518D0 publication Critical patent/GB8313518D0/en
Publication of GB2121987A publication Critical patent/GB2121987A/en
Application granted granted Critical
Publication of GB2121987B publication Critical patent/GB2121987B/en
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
    • G11B7/0901—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
GB08313518A 1982-05-19 1983-05-17 Data reading device Expired GB2121987B (en)

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 (3)

Publication Number Publication Date
GB8313518D0 GB8313518D0 (en) 1983-06-22
GB2121987A GB2121987A (en) 1984-01-04
GB2121987B true GB2121987B (en) 1986-02-26

Family

ID=13829730

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08313518A Expired GB2121987B (en) 1982-05-19 1983-05-17 Data reading device

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
DE3318133C2 (en, 2012) 1988-06-23

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960517