JPS6478476A - Tracking servo system - Google Patents

Tracking servo system

Info

Publication number
JPS6478476A
JPS6478476A JP23581287A JP23581287A JPS6478476A JP S6478476 A JPS6478476 A JP S6478476A JP 23581287 A JP23581287 A JP 23581287A JP 23581287 A JP23581287 A JP 23581287A JP S6478476 A JPS6478476 A JP S6478476A
Authority
JP
Japan
Prior art keywords
frequency band
converter
improvement
tracking
tracking servo
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
JP23581287A
Other languages
Japanese (ja)
Inventor
Yutaka Osada
Hiroshi Hirayama
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
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP23581287A priority Critical patent/JPS6478476A/en
Publication of JPS6478476A publication Critical patent/JPS6478476A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To improve the degree of improvement of off-tracking in a specific frequency band by improving the gain in the frequency band by using a frequency band amplifying filter. CONSTITUTION:A speed control loop to control the rotational speed of an access motor 3 is constituted of an encoder, 5, an A/D converter 7, a digital signal processing circuit 9, a D/A converter 10, a drive circuit, and the access motor 3. Also, a tracking servo loop to execute the tracking servo of a magnetic head is constituted of the A/D converter 7, the access motor 3, a head drive mechanism 2, and a photosensor 8. The degrees of improvement of off-tracking caused by the decentering of a disk and that caused by the expansion anisotropy is improved by using the frequency band amplifying filter 1 that increases the gain in the frequencies inherent to said causes. In such a way, the degree of improvement or off-tacking can be drastically improved.
JP23581287A 1987-09-19 1987-09-19 Tracking servo system Pending JPS6478476A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23581287A JPS6478476A (en) 1987-09-19 1987-09-19 Tracking servo system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23581287A JPS6478476A (en) 1987-09-19 1987-09-19 Tracking servo system

Publications (1)

Publication Number Publication Date
JPS6478476A true JPS6478476A (en) 1989-03-23

Family

ID=16991618

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23581287A Pending JPS6478476A (en) 1987-09-19 1987-09-19 Tracking servo system

Country Status (1)

Country Link
JP (1) JPS6478476A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018133972A (en) * 2017-02-17 2018-08-23 株式会社リコー Operational device, drive device, drive system, image formation device, transportation device, and operational method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52120805A (en) * 1976-04-02 1977-10-11 Sony Corp Servo apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52120805A (en) * 1976-04-02 1977-10-11 Sony Corp Servo apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018133972A (en) * 2017-02-17 2018-08-23 株式会社リコー Operational device, drive device, drive system, image formation device, transportation device, and operational method

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