JPS5782257A - Head alignment system - Google Patents

Head alignment system

Info

Publication number
JPS5782257A
JPS5782257A JP55156283A JP15628380A JPS5782257A JP S5782257 A JPS5782257 A JP S5782257A JP 55156283 A JP55156283 A JP 55156283A JP 15628380 A JP15628380 A JP 15628380A JP S5782257 A JPS5782257 A JP S5782257A
Authority
JP
Japan
Prior art keywords
speed
circuit
signal
servo signal
speed model
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
JP55156283A
Other languages
Japanese (ja)
Inventor
Etsuro Yamazaki
Yoshibumi Mizoshita
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP55156283A priority Critical patent/JPS5782257A/en
Publication of JPS5782257A publication Critical patent/JPS5782257A/en
Pending 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

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)
  • Control Of Linear Motors (AREA)

Abstract

PURPOSE:To reduce the access time, by switching a signal for production of a speed model curve from a servo signal to a sector servo signal before the objective track and keeping constant the initial speed at switching from speed to position control. CONSTITUTION:In a speed model producing circuit CB, a pulse C1 and a sector servo signal through an analog swtich 20 are switched before the objective track with a track crossing pulse generating circuit 34, and the speed model curve can be shaped with a function circuit 42 via a counter 36, DA converter 38, and smoothing device 40. A speed model signal from the circuit 42 and a head moving speed from a head drive linear motor LMA are subtracted 44 for speed control.
JP55156283A 1980-11-06 1980-11-06 Head alignment system Pending JPS5782257A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55156283A JPS5782257A (en) 1980-11-06 1980-11-06 Head alignment system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55156283A JPS5782257A (en) 1980-11-06 1980-11-06 Head alignment system

Publications (1)

Publication Number Publication Date
JPS5782257A true JPS5782257A (en) 1982-05-22

Family

ID=15624427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55156283A Pending JPS5782257A (en) 1980-11-06 1980-11-06 Head alignment system

Country Status (1)

Country Link
JP (1) JPS5782257A (en)

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