JPS5587350A - Magnetic disk device - Google Patents

Magnetic disk device

Info

Publication number
JPS5587350A
JPS5587350A JP15901178A JP15901178A JPS5587350A JP S5587350 A JPS5587350 A JP S5587350A JP 15901178 A JP15901178 A JP 15901178A JP 15901178 A JP15901178 A JP 15901178A JP S5587350 A JPS5587350 A JP S5587350A
Authority
JP
Japan
Prior art keywords
head
signal
odd
featuring
give
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
JP15901178A
Other languages
Japanese (ja)
Other versions
JPS6051172B2 (en
Inventor
Masateru Sasaki
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP15901178A priority Critical patent/JPS6051172B2/en
Publication of JPS5587350A publication Critical patent/JPS5587350A/en
Publication of JPS6051172B2 publication Critical patent/JPS6051172B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To increase the positioning accuracy for the head by securing the simultaneous detection for the position signals which give the identification to both the odd- and even-order tracks along with increment of the servo head core width and then extracting the control signal featuring the high S/N ratio.
CONSTITUTION: The simultaneous reading is given to position signals P1 and P2 which give the identification to the odd-and even-order tracks 1-2, 1-3 and others via servo head 2 featuring core width CW equivalent to the double width TW of the disk track, and then the multiplication is carried out through analog multiplier 3. This multiplication signal PM is processed through operational amplifiers 4-1 and 4-2 to which the fixed reference voltage is applied and by making use of the full region of signal PM. Thus cylinder pulse CP of the high S/N is generated through OR circuit 7 to perform the high-accuracy tracking. On the other hand, signal switch circuit 8 is controlled via FF6 which is set and reset by the output of amplifiers 4-1 and 4-2, and thus the signals corresponding to the shift velocity of head 2 in the radius direction are detected. As a result, head 2 can be controlled at the searching time.
COPYRIGHT: (C)1980,JPO&Japio
JP15901178A 1978-12-22 1978-12-22 magnetic disk device Expired JPS6051172B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15901178A JPS6051172B2 (en) 1978-12-22 1978-12-22 magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15901178A JPS6051172B2 (en) 1978-12-22 1978-12-22 magnetic disk device

Publications (2)

Publication Number Publication Date
JPS5587350A true JPS5587350A (en) 1980-07-02
JPS6051172B2 JPS6051172B2 (en) 1985-11-12

Family

ID=15684286

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15901178A Expired JPS6051172B2 (en) 1978-12-22 1978-12-22 magnetic disk device

Country Status (1)

Country Link
JP (1) JPS6051172B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5853061A (en) * 1981-09-25 1983-03-29 Toshiba Corp magnetic disc device
JPS63181179A (en) * 1987-01-22 1988-07-26 Sony Corp Tracking servo device
JPH02227811A (en) * 1989-01-27 1990-09-11 Internatl Business Mach Corp <Ibm> Magnetic disc device
CN115196272A (en) * 2022-09-14 2022-10-18 苏州斯莱克精密设备股份有限公司 Carrier assembly device and product conveying line
CN115285615A (en) * 2022-09-29 2022-11-04 苏州斯莱克精密设备股份有限公司 Hollow body product conveying system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5853061A (en) * 1981-09-25 1983-03-29 Toshiba Corp magnetic disc device
JPS63181179A (en) * 1987-01-22 1988-07-26 Sony Corp Tracking servo device
JPH02227811A (en) * 1989-01-27 1990-09-11 Internatl Business Mach Corp <Ibm> Magnetic disc device
CN115196272A (en) * 2022-09-14 2022-10-18 苏州斯莱克精密设备股份有限公司 Carrier assembly device and product conveying line
CN115196272B (en) * 2022-09-14 2022-12-02 苏州斯莱克精密设备股份有限公司 Carrier assembly device and product conveying line
CN115285615A (en) * 2022-09-29 2022-11-04 苏州斯莱克精密设备股份有限公司 Hollow body product conveying system
CN115285615B (en) * 2022-09-29 2023-01-17 苏州斯莱克精密设备股份有限公司 Hollow body product conveying system

Also Published As

Publication number Publication date
JPS6051172B2 (en) 1985-11-12

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