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JPS5542342A - Return system to o track of magnetic head - Google Patents

Return system to o track of magnetic head

Info

Publication number
JPS5542342A
JPS5542342A JP11492278A JP11492278A JPS5542342A JP S5542342 A JPS5542342 A JP S5542342A JP 11492278 A JP11492278 A JP 11492278A JP 11492278 A JP11492278 A JP 11492278A JP S5542342 A JPS5542342 A JP S5542342A
Authority
JP
Japan
Prior art keywords
track
head
tooth wave
position signal
disk
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
JP11492278A
Other languages
Japanese (ja)
Inventor
Minoru Okada
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11492278A priority Critical patent/JPS5542342A/en
Publication of JPS5542342A publication Critical patent/JPS5542342A/en
Pending legal-status Critical Current

Links

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  • Control Of Position Or Direction (AREA)

Abstract

PURPOSE: To simplify position adjustments of a head by giving a margine to the relation between a position signal and reference position of the control field part of a disk surface to the guard band part by using a two-track saw-tooth wave as the position signal.
CONSTITUTION: To return a head on a random head to a 0 track, a carriage is moved backward in a disk-surface radius direction at a constant speed for speed control and when the head data of the guard band part, position control is done there to stop the head temporarily. As a position signal for the above-mentioned operation, a two-track saw-tooth wave is used. For example, in case of an even- track saw-tooth wave, a one-track saw-tooth wave is used as the position signal this time to performing the two-track sequential seeking operation forward in the disk- surface radius direction and when the data part of a control field part comes, it is considered to be the 0 track. In this way, the position adjustments of the head can be simplified.
COPYRIGHT: (C)1980,JPO&Japio
JP11492278A 1978-09-19 1978-09-19 Return system to o track of magnetic head Pending JPS5542342A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11492278A JPS5542342A (en) 1978-09-19 1978-09-19 Return system to o track of magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11492278A JPS5542342A (en) 1978-09-19 1978-09-19 Return system to o track of magnetic head

Publications (1)

Publication Number Publication Date
JPS5542342A true JPS5542342A (en) 1980-03-25

Family

ID=14649977

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11492278A Pending JPS5542342A (en) 1978-09-19 1978-09-19 Return system to o track of magnetic head

Country Status (1)

Country Link
JP (1) JPS5542342A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6453623A (en) * 1987-03-23 1989-03-01 Exar Corp Pulse detecting circuit employing amplitude and time recognition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6453623A (en) * 1987-03-23 1989-03-01 Exar Corp Pulse detecting circuit employing amplitude and time recognition

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