JPS5664574A - Tracking servo device - Google Patents

Tracking servo device

Info

Publication number
JPS5664574A
JPS5664574A JP14065179A JP14065179A JPS5664574A JP S5664574 A JPS5664574 A JP S5664574A JP 14065179 A JP14065179 A JP 14065179A JP 14065179 A JP14065179 A JP 14065179A JP S5664574 A JPS5664574 A JP S5664574A
Authority
JP
Japan
Prior art keywords
circuit
output
supplied
input
servo device
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
JP14065179A
Other languages
Japanese (ja)
Inventor
Koichi Minemura
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 JP14065179A priority Critical patent/JPS5664574A/en
Publication of JPS5664574A publication Critical patent/JPS5664574A/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
    • G11B21/10—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 simplify the constitution of a tracking servo device without lowering the information record density, by adapting the wobbling system. CONSTITUTION:The output of the signal detection part 32 is supplied to the envelope curve detection circuit 33, and the output of the circuit 3 is applied to the input terminal of one side of the multiplier circuit 34. The output of the oscillator circuit 39 is applied to the other input of the circuit 34. The output of the multiplier circuit 34 is used as the tracking information and supplied to the sample holding circuit 35. The output of the circuit 35 is supplied to one input terminal of the adder circuit 37 via the smoothing circuit 36, and the output of the circuit 39 is supplied to the other input of the circuit 37 through the gate circuit 40. The output of the pickup part 31 is supplied to the demodulator circuit and then to the AFC circuit 42. The horizontal pulse thus obtained is applied to the circuit 35 as well as the control terminal of the circuit 40.
JP14065179A 1979-10-31 1979-10-31 Tracking servo device Pending JPS5664574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14065179A JPS5664574A (en) 1979-10-31 1979-10-31 Tracking servo device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14065179A JPS5664574A (en) 1979-10-31 1979-10-31 Tracking servo device

Publications (1)

Publication Number Publication Date
JPS5664574A true JPS5664574A (en) 1981-06-01

Family

ID=15273600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14065179A Pending JPS5664574A (en) 1979-10-31 1979-10-31 Tracking servo device

Country Status (1)

Country Link
JP (1) JPS5664574A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6116075A (en) * 1984-07-02 1986-01-24 Fuji Photo Film Co Ltd Tracking device for rotary magnetic recording medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6116075A (en) * 1984-07-02 1986-01-24 Fuji Photo Film Co Ltd Tracking device for rotary magnetic recording medium

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