JPS57200973A - Feed pulse generating circuit - Google Patents

Feed pulse generating circuit

Info

Publication number
JPS57200973A
JPS57200973A JP8625081A JP8625081A JPS57200973A JP S57200973 A JPS57200973 A JP S57200973A JP 8625081 A JP8625081 A JP 8625081A JP 8625081 A JP8625081 A JP 8625081A JP S57200973 A JPS57200973 A JP S57200973A
Authority
JP
Japan
Prior art keywords
capacitor
operational amplifier
feed pulse
low
supplied
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
JP8625081A
Other languages
Japanese (ja)
Other versions
JPS631671B2 (en
Inventor
Ryozo Abe
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.)
Victor Company of Japan Ltd
Nippon Victor KK
Original Assignee
Victor Company of Japan Ltd
Nippon Victor KK
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 Victor Company of Japan Ltd, Nippon Victor KK filed Critical Victor Company of Japan Ltd
Priority to JP8625081A priority Critical patent/JPS57200973A/en
Publication of JPS57200973A publication Critical patent/JPS57200973A/en
Publication of JPS631671B2 publication Critical patent/JPS631671B2/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
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following

Landscapes

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

Abstract

PURPOSE:To reduce electrostatic capacity of a capacitor, and to prevent generation of an unnecessary feed pulse, by using a Miller integration circuit having the capacitor charged with a tracking error signal, and a capacitor charging polarity inversion detector. CONSTITUTION:A tracking error signal is supplied to an inverting input terminal of an operational amplifier 11. The operational amplifier 11 constitutes a Miller integration circuit together with a capacitor C2 whose both ends have been connected to its output terminal and inverting input terminal, and a resistance R2. An output of the operational amplifier 11 is supplied to a comparator 12, is compared with zero potential, and a square wave of a high or low level is outputted. An inversion detector 13 detects that the square wave is inverted to high from low, or to low from high, supplies a detecting signal to a flip-flop 10, operates switches S4, S5, and outputs a feed pulse.
JP8625081A 1981-06-04 1981-06-04 Feed pulse generating circuit Granted JPS57200973A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8625081A JPS57200973A (en) 1981-06-04 1981-06-04 Feed pulse generating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8625081A JPS57200973A (en) 1981-06-04 1981-06-04 Feed pulse generating circuit

Publications (2)

Publication Number Publication Date
JPS57200973A true JPS57200973A (en) 1982-12-09
JPS631671B2 JPS631671B2 (en) 1988-01-13

Family

ID=13881565

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8625081A Granted JPS57200973A (en) 1981-06-04 1981-06-04 Feed pulse generating circuit

Country Status (1)

Country Link
JP (1) JPS57200973A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60111327A (en) * 1983-11-18 1985-06-17 Fuji Photo Film Co Ltd Magnetic recording medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60111327A (en) * 1983-11-18 1985-06-17 Fuji Photo Film Co Ltd Magnetic recording medium

Also Published As

Publication number Publication date
JPS631671B2 (en) 1988-01-13

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