JPS5532240A - Reproducing device - Google Patents

Reproducing device

Info

Publication number
JPS5532240A
JPS5532240A JP10403978A JP10403978A JPS5532240A JP S5532240 A JPS5532240 A JP S5532240A JP 10403978 A JP10403978 A JP 10403978A JP 10403978 A JP10403978 A JP 10403978A JP S5532240 A JPS5532240 A JP S5532240A
Authority
JP
Japan
Prior art keywords
jumping
light beam
scan
speed
generates
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
JP10403978A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6243253B2 (enrdf_load_stackoverflow
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 JP10403978A priority Critical patent/JPS5532240A/ja
Publication of JPS5532240A publication Critical patent/JPS5532240A/ja
Priority to US06/380,343 priority patent/US4539664A/en
Publication of JPS6243253B2 publication Critical patent/JPS6243253B2/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
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/08—Track changing or selecting during transducing operation
    • G11B21/081—Access to indexed tracks or parts of continuous track
    • G11B21/083—Access to indexed tracks or parts of continuous track on discs
    • G11B21/085—Access to indexed tracks or parts of continuous track on discs with track following of accessed part
    • 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
    • G11B7/08517—Methods for track change, selection or preliminary positioning by moving the head with tracking pull-in only
    • 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
    • G11B7/08541—Methods for track change, selection or preliminary positioning by moving the head involving track counting to determine position
    • 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
    • G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
    • G11B7/08564—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements using galvanomirrors

Landscapes

  • Moving Of Head For Track Selection And Changing (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
JP10403978A 1978-08-25 1978-08-25 Reproducing device Granted JPS5532240A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP10403978A JPS5532240A (en) 1978-08-25 1978-08-25 Reproducing device
US06/380,343 US4539664A (en) 1978-08-25 1982-05-20 Control system for optical information signal reproduction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10403978A JPS5532240A (en) 1978-08-25 1978-08-25 Reproducing device

Publications (2)

Publication Number Publication Date
JPS5532240A true JPS5532240A (en) 1980-03-06
JPS6243253B2 JPS6243253B2 (enrdf_load_stackoverflow) 1987-09-12

Family

ID=14370073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10403978A Granted JPS5532240A (en) 1978-08-25 1978-08-25 Reproducing device

Country Status (1)

Country Link
JP (1) JPS5532240A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57128938A (en) * 1981-02-04 1982-08-10 Yamagata Nippon Denki Kk Device for measuring characteristic of semiconductor
EP0164071A3 (en) * 1984-06-01 1988-04-06 Nippon Gakki Seizo Kabushiki Kaisha Pickup head position control device in an optical type disc reproducing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57128938A (en) * 1981-02-04 1982-08-10 Yamagata Nippon Denki Kk Device for measuring characteristic of semiconductor
EP0164071A3 (en) * 1984-06-01 1988-04-06 Nippon Gakki Seizo Kabushiki Kaisha Pickup head position control device in an optical type disc reproducing device
US4803675A (en) * 1984-06-01 1989-02-07 Nippon Gakki Seizo Kabushiki Kaisha High speed, low power consumption pickup head position control device in an optical type disc reproducing device

Also Published As

Publication number Publication date
JPS6243253B2 (enrdf_load_stackoverflow) 1987-09-12

Similar Documents

Publication Publication Date Title
ES450801A1 (es) Aparato para leer un registro en forma de disco.
JPS6464125A (en) Optical recording and reproducing method
AU537297B2 (en) Dithered centre tracking system
ES441179A1 (es) Un servosistema para seguir opticamente y leer simultanea- mente un canal de informacion almacenada sobre un disco de video.
CA2024360A1 (en) Optical disk apparatus
KR870006556A (ko) 트랙킹서보 제어장치
EP0285661A4 (en) POSITION DETECTOR OF THE OPTICAL FOCUS OF AN OPTICAL DATA STORAGE / READING DEVICE.
EP0304299A3 (en) An optical disc drive
JPS5313309A (en) Optically reproducing unit
JPS57120275A (en) Tracking servo lead-in system of recorded information reader
JPS5532239A (en) Reproducing device
JPS5532240A (en) Reproducing device
EP0404942A4 (en) Optical disk and movement control of its optical spot
EP0441969A4 (en) Seek circuit of optical disk
JPS533305A (en) Optical reproduction device
JPS56124168A (en) Device for reproducing information
JP2734562B2 (ja) トラッキングサーボの方法
JPS5465504A (en) Recording-reproducing system of information
JPS57181432A (en) Optical type disc reproducer
ATE242531T1 (de) Verbesserte spurregelung einer optischen platte
JPS54155007A (en) Information recorder
JPS6466829A (en) Tracking device for optical disk device
JPS5744234A (en) Optical servo device
JPS5382303A (en) Information recording panel and its reproducing system
KR930014345A (ko) 광 디스크장치의 트랙점프 제어방법 및 그 시스템