JPS5944699B2 - 偏心検出方式 - Google Patents

偏心検出方式

Info

Publication number
JPS5944699B2
JPS5944699B2 JP49144526A JP14452674A JPS5944699B2 JP S5944699 B2 JPS5944699 B2 JP S5944699B2 JP 49144526 A JP49144526 A JP 49144526A JP 14452674 A JP14452674 A JP 14452674A JP S5944699 B2 JPS5944699 B2 JP S5944699B2
Authority
JP
Japan
Prior art keywords
disk
light
information
track
eccentricity
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
Application number
JP49144526A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5171161A (enrdf_load_stackoverflow
Inventor
成二 米沢
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 JP49144526A priority Critical patent/JPS5944699B2/ja
Publication of JPS5171161A publication Critical patent/JPS5171161A/ja
Publication of JPS5944699B2 publication Critical patent/JPS5944699B2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
JP49144526A 1974-12-18 1974-12-18 偏心検出方式 Expired JPS5944699B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP49144526A JPS5944699B2 (ja) 1974-12-18 1974-12-18 偏心検出方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49144526A JPS5944699B2 (ja) 1974-12-18 1974-12-18 偏心検出方式

Publications (2)

Publication Number Publication Date
JPS5171161A JPS5171161A (enrdf_load_stackoverflow) 1976-06-19
JPS5944699B2 true JPS5944699B2 (ja) 1984-10-31

Family

ID=15364367

Family Applications (1)

Application Number Title Priority Date Filing Date
JP49144526A Expired JPS5944699B2 (ja) 1974-12-18 1974-12-18 偏心検出方式

Country Status (1)

Country Link
JP (1) JPS5944699B2 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61219816A (ja) * 1985-03-27 1986-09-30 Yokogawa Electric Corp デイスク形状測定装置

Also Published As

Publication number Publication date
JPS5171161A (enrdf_load_stackoverflow) 1976-06-19

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