JPS5744238A - Information recorder - Google Patents

Information recorder

Info

Publication number
JPS5744238A
JPS5744238A JP10830281A JP10830281A JPS5744238A JP S5744238 A JPS5744238 A JP S5744238A JP 10830281 A JP10830281 A JP 10830281A JP 10830281 A JP10830281 A JP 10830281A JP S5744238 A JPS5744238 A JP S5744238A
Authority
JP
Japan
Prior art keywords
signal
tracking
supplied
track
source
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.)
Granted
Application number
JP10830281A
Other languages
Japanese (ja)
Other versions
JPS6362808B2 (en
Inventor
Akimichi Terada
Seiichi Mita
Masaru Matsumura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10830281A priority Critical patent/JPS5744238A/en
Publication of JPS5744238A publication Critical patent/JPS5744238A/en
Publication of JPS6362808B2 publication Critical patent/JPS6362808B2/ja
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

Abstract

PURPOSE:To obtain a recorder which realizes a simple and inexpensive reproducer, by adding a reference signal generating means for tracking of information track and a track forming means for tracking of information track, respectively. CONSTITUTION:The beams emitted from a laser beam source 14 enter an optical modulator 26 to receive the modulation equivalent to the TV signal supplied from a TV signal generating source 27 and are supplied to an optical deflector 16. The signal generated from the source 27 is supplied to the deflector 16 utilizing the acoustooptic effect or the electrooptic effect via a synchronous separating circuit 28 and a deflected pulse generating circuit 29. The output beam receives the modulation of frequencies f1 and f2 and is split into two beams with a shift of a minute distance to be condensed on a disk 15 throgh lenses 12 and 13. A track into which the signals of frequencies f1 and f2 alternately is obtained in the horizontal blanking section of the TV signal. The signal for tracking is obtained by a simple process of signal durig the reproduction. Thus a simple and inexpensive reproducer can be obtained.
JP10830281A 1981-07-13 1981-07-13 Information recorder Granted JPS5744238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10830281A JPS5744238A (en) 1981-07-13 1981-07-13 Information recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10830281A JPS5744238A (en) 1981-07-13 1981-07-13 Information recorder

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP48101204A Division JPS5912070B2 (en) 1973-09-10 1973-09-10 Information recording and playback method

Publications (2)

Publication Number Publication Date
JPS5744238A true JPS5744238A (en) 1982-03-12
JPS6362808B2 JPS6362808B2 (en) 1988-12-05

Family

ID=14481240

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10830281A Granted JPS5744238A (en) 1981-07-13 1981-07-13 Information recorder

Country Status (1)

Country Link
JP (1) JPS5744238A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0435422A2 (en) * 1989-12-21 1991-07-03 Pioneer Electronic Corporation Information-recorded disk carrying tracking pilot signal and playing apparatus therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0435422A2 (en) * 1989-12-21 1991-07-03 Pioneer Electronic Corporation Information-recorded disk carrying tracking pilot signal and playing apparatus therefor

Also Published As

Publication number Publication date
JPS6362808B2 (en) 1988-12-05

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