JPS6145409A - 両面ヘツドドライブ用アライメントデイスク - Google Patents

両面ヘツドドライブ用アライメントデイスク

Info

Publication number
JPS6145409A
JPS6145409A JP16649384A JP16649384A JPS6145409A JP S6145409 A JPS6145409 A JP S6145409A JP 16649384 A JP16649384 A JP 16649384A JP 16649384 A JP16649384 A JP 16649384A JP S6145409 A JPS6145409 A JP S6145409A
Authority
JP
Japan
Prior art keywords
signal
adjustment signal
track
center line
double
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
JP16649384A
Other languages
English (en)
Japanese (ja)
Other versions
JPH039525B2 (enrdf_load_stackoverflow
Inventor
Hiroshi Kanai
金井　博志
Hitoshi Ishida
均 石田
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP16649384A priority Critical patent/JPS6145409A/ja
Publication of JPS6145409A publication Critical patent/JPS6145409A/ja
Publication of JPH039525B2 publication Critical patent/JPH039525B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Digital Magnetic Recording (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
JP16649384A 1984-08-10 1984-08-10 両面ヘツドドライブ用アライメントデイスク Granted JPS6145409A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16649384A JPS6145409A (ja) 1984-08-10 1984-08-10 両面ヘツドドライブ用アライメントデイスク

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16649384A JPS6145409A (ja) 1984-08-10 1984-08-10 両面ヘツドドライブ用アライメントデイスク

Publications (2)

Publication Number Publication Date
JPS6145409A true JPS6145409A (ja) 1986-03-05
JPH039525B2 JPH039525B2 (enrdf_load_stackoverflow) 1991-02-08

Family

ID=15832396

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16649384A Granted JPS6145409A (ja) 1984-08-10 1984-08-10 両面ヘツドドライブ用アライメントデイスク

Country Status (1)

Country Link
JP (1) JPS6145409A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62234221A (ja) * 1986-04-04 1987-10-14 Hitachi Ltd 磁気デイスク駆動装置のトラツキング調整装置
US4748524A (en) * 1985-12-24 1988-05-31 Oki Electric Industry Co., Ltd. Alignment disk for use in adjusting or inspecting a magnetic head in a floppy disk drive unit
JPS63306573A (ja) * 1987-06-05 1988-12-14 Sharp Corp 情報記録円盤再生装置
JPS6460809A (en) * 1987-08-31 1989-03-07 Sony Corp Alignment disk
US4992893A (en) * 1986-02-19 1991-02-12 Hitachi, Ltd. Alignment disk for magnetic disk driving apparatus and method and apparatus for verifying tracking error of the magnetic disk driving apparatus
US6437947B1 (en) 1997-03-17 2002-08-20 Fujitsu Limited Magnetic disk, magnetic recording and reproducing method and magnetic disk unit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5942631A (ja) * 1982-09-03 1984-03-09 Hitachi Ltd 磁気ヘツド位置測定用記録媒体
JPS59107422A (ja) * 1982-12-09 1984-06-21 Matsushita Electric Ind Co Ltd 磁気ヘツド位置測定用デイスク

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5942631A (ja) * 1982-09-03 1984-03-09 Hitachi Ltd 磁気ヘツド位置測定用記録媒体
JPS59107422A (ja) * 1982-12-09 1984-06-21 Matsushita Electric Ind Co Ltd 磁気ヘツド位置測定用デイスク

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4748524A (en) * 1985-12-24 1988-05-31 Oki Electric Industry Co., Ltd. Alignment disk for use in adjusting or inspecting a magnetic head in a floppy disk drive unit
US4992893A (en) * 1986-02-19 1991-02-12 Hitachi, Ltd. Alignment disk for magnetic disk driving apparatus and method and apparatus for verifying tracking error of the magnetic disk driving apparatus
JPS62234221A (ja) * 1986-04-04 1987-10-14 Hitachi Ltd 磁気デイスク駆動装置のトラツキング調整装置
JPS63306573A (ja) * 1987-06-05 1988-12-14 Sharp Corp 情報記録円盤再生装置
JPS6460809A (en) * 1987-08-31 1989-03-07 Sony Corp Alignment disk
US6437947B1 (en) 1997-03-17 2002-08-20 Fujitsu Limited Magnetic disk, magnetic recording and reproducing method and magnetic disk unit

Also Published As

Publication number Publication date
JPH039525B2 (enrdf_load_stackoverflow) 1991-02-08

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