JPS5371808A - Optical information reader - Google Patents

Optical information reader

Info

Publication number
JPS5371808A
JPS5371808A JP14747776A JP14747776A JPS5371808A JP S5371808 A JPS5371808 A JP S5371808A JP 14747776 A JP14747776 A JP 14747776A JP 14747776 A JP14747776 A JP 14747776A JP S5371808 A JPS5371808 A JP S5371808A
Authority
JP
Japan
Prior art keywords
optical information
information reader
signal
supplementary
positiondetecting
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.)
Pending
Application number
JP14747776A
Other languages
Japanese (ja)
Inventor
Toyoki Taguchi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14747776A priority Critical patent/JPS5371808A/en
Publication of JPS5371808A publication Critical patent/JPS5371808A/en
Pending legal-status Critical Current

Links

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  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To stably drive the light-direction-variable unit, by integrating the track-positiondetecting signal according to the supplementary beam on the disk type record-carrier and the differentiated value of the read-beam-signal, and adding the integrated result to the supplementary beam-signal.
JP14747776A 1976-12-08 1976-12-08 Optical information reader Pending JPS5371808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14747776A JPS5371808A (en) 1976-12-08 1976-12-08 Optical information reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14747776A JPS5371808A (en) 1976-12-08 1976-12-08 Optical information reader

Publications (1)

Publication Number Publication Date
JPS5371808A true JPS5371808A (en) 1978-06-26

Family

ID=15431263

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14747776A Pending JPS5371808A (en) 1976-12-08 1976-12-08 Optical information reader

Country Status (1)

Country Link
JP (1) JPS5371808A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57205833A (en) * 1981-06-12 1982-12-17 Sony Corp Optical reproducing device
JPS63148434A (en) * 1986-11-17 1988-06-21 エヌ・ベー・フィリップス・フルーイランペンファブリケン Information apparatus using disc-shaped record carrier
JPH0773476A (en) * 1986-08-29 1995-03-17 Laser Magnetic Storage Internatl Co Optical disk

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57205833A (en) * 1981-06-12 1982-12-17 Sony Corp Optical reproducing device
JPH0253853B2 (en) * 1981-06-12 1990-11-20 Sony Corp
JPH0773476A (en) * 1986-08-29 1995-03-17 Laser Magnetic Storage Internatl Co Optical disk
JPS63148434A (en) * 1986-11-17 1988-06-21 エヌ・ベー・フィリップス・フルーイランペンファブリケン Information apparatus using disc-shaped record carrier

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