[go: up one dir, main page]

JPS5668964A - Positioning system for magnetic head - Google Patents

Positioning system for magnetic head

Info

Publication number
JPS5668964A
JPS5668964A JP14204779A JP14204779A JPS5668964A JP S5668964 A JPS5668964 A JP S5668964A JP 14204779 A JP14204779 A JP 14204779A JP 14204779 A JP14204779 A JP 14204779A JP S5668964 A JPS5668964 A JP S5668964A
Authority
JP
Japan
Prior art keywords
data
width
position signal
heads
magnetic head
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
JP14204779A
Other languages
Japanese (ja)
Other versions
JPS6120944B2 (en
Inventor
Yasuhiro Koshimoto
Shuichi Takanami
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 JP14204779A priority Critical patent/JPS5668964A/en
Publication of JPS5668964A publication Critical patent/JPS5668964A/en
Publication of JPS6120944B2 publication Critical patent/JPS6120944B2/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
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)

Abstract

PURPOSE:To eliminate the recording of the special position information for positioning of the magnetic head of a magnetic disk, by using the data at the end part of the data track for the positioning signal. CONSTITUTION:The position signal detecting heads 8a and 8b are provided near the data head 5 to detect both the direction and extent of the shift. The position signal detecting heads 8a and 8b having the core width TW' smaller than the track width TW are provided at the very edge of the width TW. Thus the outputs of these detecting heads become as shown in the waveform diagrams (a) and (b) each, and these waveforms are added together through the adverse level detector 9. Thus the error voltage of zero, plus and minus each can be detected in accordance with the shift of position between the data track and the data head. With a simultaneous use of the heads 8a and 8b in a number of units, the quality of the position signal can be enhanced.
JP14204779A 1979-11-05 1979-11-05 Positioning system for magnetic head Granted JPS5668964A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14204779A JPS5668964A (en) 1979-11-05 1979-11-05 Positioning system for magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14204779A JPS5668964A (en) 1979-11-05 1979-11-05 Positioning system for magnetic head

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP3145888A Division JPH01125776A (en) 1988-02-12 1988-02-12 Positioning system for magnetic head

Publications (2)

Publication Number Publication Date
JPS5668964A true JPS5668964A (en) 1981-06-09
JPS6120944B2 JPS6120944B2 (en) 1986-05-24

Family

ID=15306155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14204779A Granted JPS5668964A (en) 1979-11-05 1979-11-05 Positioning system for magnetic head

Country Status (1)

Country Link
JP (1) JPS5668964A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60124019A (en) * 1983-12-07 1985-07-02 Sharp Corp Tracking control method of multi-track magnetic head

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0317367U (en) * 1989-06-29 1991-02-20

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4930730A (en) * 1972-07-21 1974-03-19
JPS51118407A (en) * 1975-04-11 1976-10-18 Hitachi Ltd Magnetic storage
JPS528165A (en) * 1975-07-04 1977-01-21 Sulzer Ag Device for transferring yarn material from first to second guide members in machine
JPS528169A (en) * 1975-07-08 1977-01-21 Omron Tateisi Electronics Co Special thread supplying device of loom

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4930730A (en) * 1972-07-21 1974-03-19
JPS51118407A (en) * 1975-04-11 1976-10-18 Hitachi Ltd Magnetic storage
JPS528165A (en) * 1975-07-04 1977-01-21 Sulzer Ag Device for transferring yarn material from first to second guide members in machine
JPS528169A (en) * 1975-07-08 1977-01-21 Omron Tateisi Electronics Co Special thread supplying device of loom

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60124019A (en) * 1983-12-07 1985-07-02 Sharp Corp Tracking control method of multi-track magnetic head
JPH0219523B2 (en) * 1983-12-07 1990-05-02 Sharp Kk

Also Published As

Publication number Publication date
JPS6120944B2 (en) 1986-05-24

Similar Documents

Publication Publication Date Title
CA1099814A (en) Track following servo system and track following code
AU564397B2 (en) Helical scan tracking control
CA2148390A1 (en) Timing based servo system for magnetic tape systems
ES8609788A1 (en) Method of pre-recording tracking information on magnetic media.
DE3783296D1 (en) OPTO-MAGNETIC SIGNAL PLAYER FOR READING INFORMATION, RECORDED ON A RECORDING MEDIUM THROUGH DIFFERENTIAL EVALUATION, USING A MAGNETO-OPTICAL EFFECT.
ES483497A1 (en) Method of positioning reproducing elements and device for carrying out the method
US4602304A (en) Servo pattern for dedicated surface track following servo systems
JPS5668964A (en) Positioning system for magnetic head
JPS57166659A (en) Magnetic disk device
JPS5396805A (en) Recording-reproducing method of signals
JPS5634115A (en) Magnetic recording method
JPS55132523A (en) Control unit of relative position between magnetic head and magnetic tape
GB1489993A (en) Head interlacing technique
JPS57105870A (en) Detecting system for head position signal
JPS57183670A (en) Position shift detector for magnetic head
SU922814A1 (en) Device for recording and reading-out information from magnetic carrier
JPS56114124A (en) Multitrack head position detection
SU1070576A2 (en) Device for writing/reading information from magnetic medium
JPS5690454A (en) Tape-like recording medium and reproducing device
JPS6432474A (en) Head position controller
JPS56159805A (en) Magnetic recording and reproducing system
JPS5683834A (en) Position measuring method of magnetic head and standard magnetic tape using in this method
Decker Comparison of calculated and actual density responses of a magnetoresistive head
JPS5737781A (en) Positioning system for data head
JPS51126109A (en) A non-signal part detector in an information read equipment