JPS6413269A - Information erasing and reproducing device - Google Patents

Information erasing and reproducing device

Info

Publication number
JPS6413269A
JPS6413269A JP16803287A JP16803287A JPS6413269A JP S6413269 A JPS6413269 A JP S6413269A JP 16803287 A JP16803287 A JP 16803287A JP 16803287 A JP16803287 A JP 16803287A JP S6413269 A JPS6413269 A JP S6413269A
Authority
JP
Japan
Prior art keywords
head
erasing
displaced
characteristic part
track
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
JP16803287A
Other languages
Japanese (ja)
Other versions
JP2635047B2 (en
Inventor
Masatoshi Ida
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP16803287A priority Critical patent/JP2635047B2/en
Priority to US07/205,165 priority patent/US5012362A/en
Publication of JPS6413269A publication Critical patent/JPS6413269A/en
Priority to US07/642,061 priority patent/US5130868A/en
Application granted granted Critical
Publication of JP2635047B2 publication Critical patent/JP2635047B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Moving Of Head For Track Selection And Changing (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)

Abstract

PURPOSE:To smoothly execute precise and delicate tracking control, etc., by realizing the displacement of a head in a minute unit without sacrificing a head access speed. CONSTITUTION:In case of erasing or reproducing information recorded on a recording medium, when a head carriage 300 is displaced in an area which leastwise includes one of the retention characteristic part and the shift characteristic part of a displacement conversion element 500 by controlling a driving source 400 with the aid of a control means 600, the head 200 displaced by the head carriage 300 makes erasing possible for the whole area enlarged more than a track to be erased at the time of erasing and makes a high accuracy on-track state to occure at the time of reproducing. In case of moving the head 200 between tracks, when the head carriage 300 is displaced in the area of the shift characteristic part of the displacement conversion element 500 by controlling the driving source 400 with the aid of the control means 600, the head 200 is immediately moved to a prescribed track.
JP16803287A 1987-06-19 1987-07-06 Information erasing / reproducing device Expired - Lifetime JP2635047B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP16803287A JP2635047B2 (en) 1987-07-06 1987-07-06 Information erasing / reproducing device
US07/205,165 US5012362A (en) 1987-06-19 1988-06-10 Apparatus for positioning a transducer for recording, reproducing or erasing information on a medium
US07/642,061 US5130868A (en) 1987-06-19 1991-01-16 Apparatus and method for positioning a transducer for recording, reproducing or erasing information on a medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16803287A JP2635047B2 (en) 1987-07-06 1987-07-06 Information erasing / reproducing device

Publications (2)

Publication Number Publication Date
JPS6413269A true JPS6413269A (en) 1989-01-18
JP2635047B2 JP2635047B2 (en) 1997-07-30

Family

ID=15860555

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16803287A Expired - Lifetime JP2635047B2 (en) 1987-06-19 1987-07-06 Information erasing / reproducing device

Country Status (1)

Country Link
JP (1) JP2635047B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003077187A1 (en) 2002-03-11 2003-09-18 Digital Verification Ltd. Currency verification

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003077187A1 (en) 2002-03-11 2003-09-18 Digital Verification Ltd. Currency verification

Also Published As

Publication number Publication date
JP2635047B2 (en) 1997-07-30

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