JPS56124168A - Device for reproducing information - Google Patents

Device for reproducing information

Info

Publication number
JPS56124168A
JPS56124168A JP2723980A JP2723980A JPS56124168A JP S56124168 A JPS56124168 A JP S56124168A JP 2723980 A JP2723980 A JP 2723980A JP 2723980 A JP2723980 A JP 2723980A JP S56124168 A JPS56124168 A JP S56124168A
Authority
JP
Japan
Prior art keywords
jumping
circuit
generating circuit
surely
tracks
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
JP2723980A
Other languages
Japanese (ja)
Other versions
JPS6231428B2 (en
Inventor
Masahiro Deguchi
Mitsuro Moriya
Noboru Wakami
Yasuhiro Goto
Kazuharu Shiragami
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2723980A priority Critical patent/JPS56124168A/en
Publication of JPS56124168A publication Critical patent/JPS56124168A/en
Publication of JPS6231428B2 publication Critical patent/JPS6231428B2/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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head

Abstract

PURPOSE:To perform a wide-range jumping stably and surely, by constituting a transfer table loaded with an optical system to move in the direction orthogonal to a track to perform jumping. CONSTITUTION:At the jumping time, if the jumping synchronizing pulse is input to A, instruction circuit 27 opens switches SW1 and SW2 and closes SW3. Simultaneously, the output voltage of voltage generating circuit 28 drives linear motor 18 through switch SW3 and linear motor driving circuit 24. Transfer table 21 is moved according to movement of movable part 19 of motor 18, and the scanning point of light beam 2 on recording carrier 7 is moved in the direction orthogonal to the track direction. The number of tracks which light beam 2 goes across successively is detected by stop pulse generating circuit 30; and when it becomes equal to a set number of tracks, instruction circuit 27 stops voltage generating circuit 28 and restores switches SW1-SW3. As a result, wide-range jumping is performed stably and surely.
JP2723980A 1980-03-04 1980-03-04 Device for reproducing information Granted JPS56124168A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2723980A JPS56124168A (en) 1980-03-04 1980-03-04 Device for reproducing information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2723980A JPS56124168A (en) 1980-03-04 1980-03-04 Device for reproducing information

Publications (2)

Publication Number Publication Date
JPS56124168A true JPS56124168A (en) 1981-09-29
JPS6231428B2 JPS6231428B2 (en) 1987-07-08

Family

ID=12215516

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2723980A Granted JPS56124168A (en) 1980-03-04 1980-03-04 Device for reproducing information

Country Status (1)

Country Link
JP (1) JPS56124168A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57164878U (en) * 1981-04-08 1982-10-18
JPS5936069U (en) * 1982-08-30 1984-03-06 三菱電機株式会社 PCM disk playback device
JPS60624A (en) * 1983-06-15 1985-01-05 Hitachi Ltd Tracking servo locking device
JPS62195733A (en) * 1986-02-05 1987-08-28 Nippon Columbia Co Ltd Track detection circuit
JPS6489086A (en) * 1987-09-30 1989-04-03 Canon Kk Information recording and reproducing device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53162608U (en) * 1977-05-24 1978-12-20
JPS5492155A (en) * 1977-12-29 1979-07-21 Matsushita Electric Ind Co Ltd Retrieval device
JPS5498517A (en) * 1978-01-20 1979-08-03 Victor Co Of Japan Ltd Reproducer for information signal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53162608U (en) * 1977-05-24 1978-12-20
JPS5492155A (en) * 1977-12-29 1979-07-21 Matsushita Electric Ind Co Ltd Retrieval device
JPS5498517A (en) * 1978-01-20 1979-08-03 Victor Co Of Japan Ltd Reproducer for information signal

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57164878U (en) * 1981-04-08 1982-10-18
JPH0229584Y2 (en) * 1981-04-08 1990-08-08
JPS5936069U (en) * 1982-08-30 1984-03-06 三菱電機株式会社 PCM disk playback device
JPH0127184Y2 (en) * 1982-08-30 1989-08-14
JPS60624A (en) * 1983-06-15 1985-01-05 Hitachi Ltd Tracking servo locking device
JPH0452531B2 (en) * 1983-06-15 1992-08-24 Hitachi Ltd
JPS62195733A (en) * 1986-02-05 1987-08-28 Nippon Columbia Co Ltd Track detection circuit
JPH0445890B2 (en) * 1986-02-05 1992-07-28 Nippon Columbia
JPS6489086A (en) * 1987-09-30 1989-04-03 Canon Kk Information recording and reproducing device

Also Published As

Publication number Publication date
JPS6231428B2 (en) 1987-07-08

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