JPH0355796B2 - - Google Patents

Info

Publication number
JPH0355796B2
JPH0355796B2 JP56213696A JP21369681A JPH0355796B2 JP H0355796 B2 JPH0355796 B2 JP H0355796B2 JP 56213696 A JP56213696 A JP 56213696A JP 21369681 A JP21369681 A JP 21369681A JP H0355796 B2 JPH0355796 B2 JP H0355796B2
Authority
JP
Japan
Prior art keywords
recording
signal
magnetic recording
magnetic medium
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.)
Expired - Lifetime
Application number
JP56213696A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58115378A (ja
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 filed Critical
Priority to JP21369681A priority Critical patent/JPS58115378A/ja
Publication of JPS58115378A publication Critical patent/JPS58115378A/ja
Publication of JPH0355796B2 publication Critical patent/JPH0355796B2/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
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1816—Testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
    • G01R33/1207—Testing individual magnetic storage devices, e.g. records carriers or digital storage elements

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Measuring Magnetic Variables (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
JP21369681A 1981-12-29 1981-12-29 磁気媒体の検査装置 Granted JPS58115378A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21369681A JPS58115378A (ja) 1981-12-29 1981-12-29 磁気媒体の検査装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21369681A JPS58115378A (ja) 1981-12-29 1981-12-29 磁気媒体の検査装置

Publications (2)

Publication Number Publication Date
JPS58115378A JPS58115378A (ja) 1983-07-09
JPH0355796B2 true JPH0355796B2 (enrdf_load_stackoverflow) 1991-08-26

Family

ID=16643472

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21369681A Granted JPS58115378A (ja) 1981-12-29 1981-12-29 磁気媒体の検査装置

Country Status (1)

Country Link
JP (1) JPS58115378A (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6278774A (ja) * 1985-10-02 1987-04-11 Hitachi Electronics Eng Co Ltd 磁気記録媒体処理装置
JPS62159378A (ja) * 1986-01-07 1987-07-15 Nec Corp 光デイスク装置
JPS62173678A (ja) * 1986-01-27 1987-07-30 Matsushita Electric Ind Co Ltd 欠陥検出装置
JPS6350980A (ja) * 1986-08-19 1988-03-03 Matsushita Electric Ind Co Ltd 欠陥検出装置
JPS62173675A (ja) * 1986-01-28 1987-07-30 Fuji Photo Film Co Ltd 磁気デイスク欠陥検出回路
JPS63144272A (ja) * 1986-12-08 1988-06-16 Hitachi Electronics Eng Co Ltd 複数の検出限界値による磁気デイスクの検査方法
JPH0668609A (ja) * 1992-08-20 1994-03-11 Teac Corp ディスク装置
JP2009004028A (ja) * 2007-06-21 2009-01-08 Fujifilm Corp モールド構造体の検査方法、モールド構造体、モールド原盤、及び磁気記録媒体

Also Published As

Publication number Publication date
JPS58115378A (ja) 1983-07-09

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