JPS5517877A - Head positioning control system - Google Patents

Head positioning control system

Info

Publication number
JPS5517877A
JPS5517877A JP9084478A JP9084478A JPS5517877A JP S5517877 A JPS5517877 A JP S5517877A JP 9084478 A JP9084478 A JP 9084478A JP 9084478 A JP9084478 A JP 9084478A JP S5517877 A JPS5517877 A JP S5517877A
Authority
JP
Japan
Prior art keywords
zero
crossing
track
circuit
time
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
JP9084478A
Other languages
English (en)
Inventor
Hiroshi Nakanishi
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP9084478A priority Critical patent/JPS5517877A/ja
Publication of JPS5517877A publication Critical patent/JPS5517877A/ja
Pending legal-status Critical Current

Links

JP9084478A 1978-07-24 1978-07-24 Head positioning control system Pending JPS5517877A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9084478A JPS5517877A (en) 1978-07-24 1978-07-24 Head positioning control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9084478A JPS5517877A (en) 1978-07-24 1978-07-24 Head positioning control system

Publications (1)

Publication Number Publication Date
JPS5517877A true JPS5517877A (en) 1980-02-07

Family

ID=14009887

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9084478A Pending JPS5517877A (en) 1978-07-24 1978-07-24 Head positioning control system

Country Status (1)

Country Link
JP (1) JPS5517877A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2558001A1 (fr) * 1984-01-10 1985-07-12 Canon Kk Procede et appareil pour la recherche d'une piste sur un support optique d'information.
JPS6442079A (en) * 1987-08-07 1989-02-14 Canon Kk Track access method for information recording and reproducing device
JPH05205416A (ja) * 1991-10-18 1993-08-13 Internatl Business Mach Corp <Ibm> 媒体欠陥によるトラッキング・エラー信号異常のマスキング装置および方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2558001A1 (fr) * 1984-01-10 1985-07-12 Canon Kk Procede et appareil pour la recherche d'une piste sur un support optique d'information.
JPS6442079A (en) * 1987-08-07 1989-02-14 Canon Kk Track access method for information recording and reproducing device
JPH05205416A (ja) * 1991-10-18 1993-08-13 Internatl Business Mach Corp <Ibm> 媒体欠陥によるトラッキング・エラー信号異常のマスキング装置および方法

Similar Documents

Publication Publication Date Title
JPS5764371A (en) Rotation control system of disk recording medium
JPS56101621A (en) Tracking system of magnetic reproducing device
FR2450014A1 (fr) Circuit d&#39;asservissement pour magnetoscope
JPS5517877A (en) Head positioning control system
JPS54935A (en) Pattern detector
JPS5587350A (en) Magnetic disk device
JPS5615101A (en) Device for stopping track vehicle in fixed position
JPS5717372A (en) Automatic gouging device
JPS5573970A (en) Automatic gain control system
JPS5616979A (en) Signal reproducting unit
JPS5616968A (en) Speed control system of data converter in data memory unit
JPS52106708A (en) Speed control system for head positioning
JPS5613566A (en) Generating circuit for track-crossing pulse
JPS5573942A (en) Begining-of-tape setter for recording
JPS53118012A (en) Automatic tracking device
JPS5514507A (en) Servo pattern writer for magnetic angle detector
JPS5671A (en) Self tracking system for magnetic disc unit
JPS6454228A (en) Impact testing apparatus
JPS54106789A (en) Controller for moving-type inside-reactor neutron detector
JPS6462826A (en) Optical disk device
JPS5746352A (en) Disk device
JPS6421773A (en) Magnetic disk device
JPS5552510A (en) Detecting method for optimum recording level of magnetic recording and reproducing device
JPS55153137A (en) Optical track tracer
JPS5323611A (en) Head position controlling system of magnetic discs