JPS6472368A - Disk device - Google Patents

Disk device

Info

Publication number
JPS6472368A
JPS6472368A JP22907287A JP22907287A JPS6472368A JP S6472368 A JPS6472368 A JP S6472368A JP 22907287 A JP22907287 A JP 22907287A JP 22907287 A JP22907287 A JP 22907287A JP S6472368 A JPS6472368 A JP S6472368A
Authority
JP
Japan
Prior art keywords
head
stoppers
driving device
speed
distance
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.)
Pending
Application number
JP22907287A
Other languages
Japanese (ja)
Inventor
Takumi Yasujima
Shigehiro Ito
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 Mobile Communications Co Ltd
Original Assignee
Matsushita Communication 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 Communication Industrial Co Ltd filed Critical Matsushita Communication Industrial Co Ltd
Priority to JP22907287A priority Critical patent/JPS6472368A/en
Publication of JPS6472368A publication Critical patent/JPS6472368A/en
Pending legal-status Critical Current

Links

Landscapes

  • Moving Of Head For Track Selection And Changing (AREA)

Abstract

PURPOSE:To surely detect the abnormality of a driving device by executing a driving control so that a head moves between stoppers at safety speed, and comparing the actual moving distance of the head with a distance between the stoppers. CONSTITUTION:A driving device 12 is controlled so that a head 7 moves to one of stoppers 9L, 9R at safety speed, the speed of the head 7 is detected by position information of a head position detecting means 10, the position of the head 7 is read, when the speed of the head 7 has become '0', and the driving device 12 is controlled so that the head 7 moves to the other of the stoppers 9L, 9R at the safety speed. Also, when the speed of the head has become '0', the position of the head 7 is read, and by comparing the moving distance between these two positions with the distance between the stoppers 9L, 9R, whether the driving device 12 is normal or not is discriminated. That is, in order that the head 7 can move at the prescribed safety speed, even when there is an obstacle in a carrying path of the head 7, the damage of the head 7 and the driving device 12 can be prevented, and also, since the distance between the stoppers 9L, 9R is used as a reference, the abnormality of the driving device 12 can be detected surely.
JP22907287A 1987-09-11 1987-09-11 Disk device Pending JPS6472368A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22907287A JPS6472368A (en) 1987-09-11 1987-09-11 Disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22907287A JPS6472368A (en) 1987-09-11 1987-09-11 Disk device

Publications (1)

Publication Number Publication Date
JPS6472368A true JPS6472368A (en) 1989-03-17

Family

ID=16886299

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22907287A Pending JPS6472368A (en) 1987-09-11 1987-09-11 Disk device

Country Status (1)

Country Link
JP (1) JPS6472368A (en)

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