JPS56145565A - Disc driving device - Google Patents

Disc driving device

Info

Publication number
JPS56145565A
JPS56145565A JP4758280A JP4758280A JPS56145565A JP S56145565 A JPS56145565 A JP S56145565A JP 4758280 A JP4758280 A JP 4758280A JP 4758280 A JP4758280 A JP 4758280A JP S56145565 A JPS56145565 A JP S56145565A
Authority
JP
Japan
Prior art keywords
head
speed
abnormal
detection level
abnormality
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
JP4758280A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6216463B2 (enrdf_load_stackoverflow
Inventor
Kenji Nishimura
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 JP4758280A priority Critical patent/JPS56145565A/ja
Publication of JPS56145565A publication Critical patent/JPS56145565A/ja
Publication of JPS6216463B2 publication Critical patent/JPS6216463B2/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
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads

Landscapes

  • Moving Of Head For Track Selection And Changing (AREA)
  • Control Of Position Or Direction (AREA)
JP4758280A 1980-04-11 1980-04-11 Disc driving device Granted JPS56145565A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4758280A JPS56145565A (en) 1980-04-11 1980-04-11 Disc driving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4758280A JPS56145565A (en) 1980-04-11 1980-04-11 Disc driving device

Publications (2)

Publication Number Publication Date
JPS56145565A true JPS56145565A (en) 1981-11-12
JPS6216463B2 JPS6216463B2 (enrdf_load_stackoverflow) 1987-04-13

Family

ID=12779239

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4758280A Granted JPS56145565A (en) 1980-04-11 1980-04-11 Disc driving device

Country Status (1)

Country Link
JP (1) JPS56145565A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62239481A (ja) * 1986-04-10 1987-10-20 Canon Inc 情報記録再生装置
JPS62295280A (ja) * 1986-06-16 1987-12-22 Canon Inc 情報記録再生装置
US8208357B2 (en) * 2008-12-05 2012-06-26 Sony Corporation Optical disc apparatus and optical disc drive control method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62239481A (ja) * 1986-04-10 1987-10-20 Canon Inc 情報記録再生装置
JPS62295280A (ja) * 1986-06-16 1987-12-22 Canon Inc 情報記録再生装置
US8208357B2 (en) * 2008-12-05 2012-06-26 Sony Corporation Optical disc apparatus and optical disc drive control method

Also Published As

Publication number Publication date
JPS6216463B2 (enrdf_load_stackoverflow) 1987-04-13

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