JPS58194170A - 磁気ヘツド移動速度検出器 - Google Patents

磁気ヘツド移動速度検出器

Info

Publication number
JPS58194170A
JPS58194170A JP7472182A JP7472182A JPS58194170A JP S58194170 A JPS58194170 A JP S58194170A JP 7472182 A JP7472182 A JP 7472182A JP 7472182 A JP7472182 A JP 7472182A JP S58194170 A JPS58194170 A JP S58194170A
Authority
JP
Japan
Prior art keywords
circuit
head
speed
signal
phase
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
JP7472182A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6364830B2 (enrdf_load_stackoverflow
Inventor
Shigemasa Yoshida
茂正 吉田
Ichiro Araki
一郎 荒木
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.)
Computer Basic Technology Research Association Corp
Original Assignee
Computer Basic Technology Research Association 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 Computer Basic Technology Research Association Corp filed Critical Computer Basic Technology Research Association Corp
Priority to JP7472182A priority Critical patent/JPS58194170A/ja
Priority to US06/491,185 priority patent/US4510537A/en
Publication of JPS58194170A publication Critical patent/JPS58194170A/ja
Publication of JPS6364830B2 publication Critical patent/JPS6364830B2/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
    • G11B5/54—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 into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/46—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)
  • Control Of Velocity Or Acceleration (AREA)
JP7472182A 1982-05-04 1982-05-04 磁気ヘツド移動速度検出器 Granted JPS58194170A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP7472182A JPS58194170A (ja) 1982-05-04 1982-05-04 磁気ヘツド移動速度検出器
US06/491,185 US4510537A (en) 1982-05-04 1983-05-03 Magnetic head moving velocity detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7472182A JPS58194170A (ja) 1982-05-04 1982-05-04 磁気ヘツド移動速度検出器

Publications (2)

Publication Number Publication Date
JPS58194170A true JPS58194170A (ja) 1983-11-12
JPS6364830B2 JPS6364830B2 (enrdf_load_stackoverflow) 1988-12-13

Family

ID=13555364

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7472182A Granted JPS58194170A (ja) 1982-05-04 1982-05-04 磁気ヘツド移動速度検出器

Country Status (1)

Country Link
JP (1) JPS58194170A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325346A (en) * 1991-10-29 1994-06-28 Sony Corporation Digital servo apparatus for optical disc player

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325346A (en) * 1991-10-29 1994-06-28 Sony Corporation Digital servo apparatus for optical disc player

Also Published As

Publication number Publication date
JPS6364830B2 (enrdf_load_stackoverflow) 1988-12-13

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