JPS57147168A - Jumping scanner - Google Patents

Jumping scanner

Info

Publication number
JPS57147168A
JPS57147168A JP3222381A JP3222381A JPS57147168A JP S57147168 A JPS57147168 A JP S57147168A JP 3222381 A JP3222381 A JP 3222381A JP 3222381 A JP3222381 A JP 3222381A JP S57147168 A JPS57147168 A JP S57147168A
Authority
JP
Japan
Prior art keywords
scanning
tracking control
jumping
width direction
tracking
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
JP3222381A
Other languages
Japanese (ja)
Other versions
JPH039554B2 (en
Inventor
Mitsuro Moriya
Masahiro Deguchi
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 JP3222381A priority Critical patent/JPS57147168A/en
Publication of JPS57147168A publication Critical patent/JPS57147168A/en
Publication of JPH039554B2 publication Critical patent/JPH039554B2/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

Landscapes

  • Moving Of Head For Track Selection And Changing (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Abstract

PURPOSE:To obtain a device which can make stable and accurate jumping scanning, by operating a tracking control means again, after scanning a converting means toward track width direction through an inoperative tracking control means. CONSTITUTION:A shifting means 12 is shifted toward track width direction in response to a signal from a tracking signal detecting means 10 or the like and control is made so that the scanning position of a coverting means is positioned on a track on a recording medium 1 at all times. The tracking control means like this is tentatively made inoperative with, e.g. a switch 14 to scan the scanning position of the converting means on the recording medium 1 toward the track width direction, and the scanning position of the converting means is detected on a desired track with a signal from a tracking signal detecting means 10 or the like, and the tracking control means is operated again for jumping scanning.
JP3222381A 1981-03-05 1981-03-05 Jumping scanner Granted JPS57147168A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3222381A JPS57147168A (en) 1981-03-05 1981-03-05 Jumping scanner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3222381A JPS57147168A (en) 1981-03-05 1981-03-05 Jumping scanner

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP4891188A Division JPS63271773A (en) 1988-03-02 1988-03-02 Jumping scan device

Publications (2)

Publication Number Publication Date
JPS57147168A true JPS57147168A (en) 1982-09-10
JPH039554B2 JPH039554B2 (en) 1991-02-08

Family

ID=12352949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3222381A Granted JPS57147168A (en) 1981-03-05 1981-03-05 Jumping scanner

Country Status (1)

Country Link
JP (1) JPS57147168A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02103735A (en) * 1988-10-11 1990-04-16 Canon Inc Optical information recording and reproducing device
US5048001A (en) * 1989-04-07 1991-09-10 Matsushita Electric Industrial Co., Ltd. Load correction method for an information retrieval apparatus
US5109366A (en) * 1988-04-14 1992-04-28 Matsushita Electric Industrial Co., Ltd. Slip-off preventing tracking control apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5226802A (en) * 1975-08-21 1977-02-28 Philips Nv Device for reading diskklike recording carrier
JPS5492155A (en) * 1977-12-29 1979-07-21 Matsushita Electric Ind Co Ltd Retrieval device
JPS57120275A (en) * 1981-01-19 1982-07-27 Pioneer Electronic Corp Tracking servo lead-in system of recorded information reader

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5226802A (en) * 1975-08-21 1977-02-28 Philips Nv Device for reading diskklike recording carrier
JPS5492155A (en) * 1977-12-29 1979-07-21 Matsushita Electric Ind Co Ltd Retrieval device
JPS57120275A (en) * 1981-01-19 1982-07-27 Pioneer Electronic Corp Tracking servo lead-in system of recorded information reader

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5109366A (en) * 1988-04-14 1992-04-28 Matsushita Electric Industrial Co., Ltd. Slip-off preventing tracking control apparatus
JPH02103735A (en) * 1988-10-11 1990-04-16 Canon Inc Optical information recording and reproducing device
US5048001A (en) * 1989-04-07 1991-09-10 Matsushita Electric Industrial Co., Ltd. Load correction method for an information retrieval apparatus

Also Published As

Publication number Publication date
JPH039554B2 (en) 1991-02-08

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