JPS5898882A - 記憶装置 - Google Patents

記憶装置

Info

Publication number
JPS5898882A
JPS5898882A JP19724781A JP19724781A JPS5898882A JP S5898882 A JPS5898882 A JP S5898882A JP 19724781 A JP19724781 A JP 19724781A JP 19724781 A JP19724781 A JP 19724781A JP S5898882 A JPS5898882 A JP S5898882A
Authority
JP
Japan
Prior art keywords
output
noise
signal
head
defects
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
JP19724781A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0321994B2 (enrdf_load_stackoverflow
Inventor
Shinji Sengoku
千石　真治
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP19724781A priority Critical patent/JPS5898882A/ja
Publication of JPS5898882A publication Critical patent/JPS5898882A/ja
Publication of JPH0321994B2 publication Critical patent/JPH0321994B2/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

  • Moving Of The Head To Find And Align With The Track (AREA)
JP19724781A 1981-12-08 1981-12-08 記憶装置 Granted JPS5898882A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19724781A JPS5898882A (ja) 1981-12-08 1981-12-08 記憶装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19724781A JPS5898882A (ja) 1981-12-08 1981-12-08 記憶装置

Publications (2)

Publication Number Publication Date
JPS5898882A true JPS5898882A (ja) 1983-06-11
JPH0321994B2 JPH0321994B2 (enrdf_load_stackoverflow) 1991-03-25

Family

ID=16371290

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19724781A Granted JPS5898882A (ja) 1981-12-08 1981-12-08 記憶装置

Country Status (1)

Country Link
JP (1) JPS5898882A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0321994B2 (enrdf_load_stackoverflow) 1991-03-25

Similar Documents

Publication Publication Date Title
US5168413A (en) Transducer head flying height monitoring methods and apparatus for disk drive system
US4929894A (en) Method and apparatus for increasing throughput on disk drive quality control testing
JPS5898882A (ja) 記憶装置
JPH0355796B2 (enrdf_load_stackoverflow)
US6104188A (en) Surface analysis test defect detector for direct access storage device
JPH0321995B2 (enrdf_load_stackoverflow)
KR100416620B1 (ko) 자기저항 헤드로부터의 신호 불안정성에 파생된 접촉을검출하는 방법
JPS62159347A (ja) 光デイスク装置
JP2611730B2 (ja) トラック幅検査装置
JPS59107462A (ja) 記憶装置
JP2611731B2 (ja) トラック幅検査装置
JPS59107461A (ja) 記憶装置
KR20080083523A (ko) 기록매체의 디펙 검사 방법 및 이를 이용한 디스크드라이브
KR19990065700A (ko) 하드디스크 드라이브의 디펙섹터 검출 방법
JPS59107463A (ja) 記憶装置
JPH01159835A (ja) 光学的情報記録再生装置
JPS61283877A (ja) 磁気デイスクの検査方法
US20040160694A1 (en) Master disc and method of manufacturing the same
JP2641250B2 (ja) 情報記録再生装置
JPS6166230A (ja) ドロツプアウト検出方法
JP2003141837A (ja) プリサーボ信号の検査方法
JPH0778898B2 (ja) 光学的情報記録再生装置
JPH01277368A (ja) 光情報記録再生装置
JPS5942625A (ja) 磁気ヘツドの検査方法
JPS63291263A (ja) 光情報記録再生装置の信号再生回路