JPH0252348B2 - - Google Patents

Info

Publication number
JPH0252348B2
JPH0252348B2 JP16111081A JP16111081A JPH0252348B2 JP H0252348 B2 JPH0252348 B2 JP H0252348B2 JP 16111081 A JP16111081 A JP 16111081A JP 16111081 A JP16111081 A JP 16111081A JP H0252348 B2 JPH0252348 B2 JP H0252348B2
Authority
JP
Japan
Prior art keywords
start position
rotation start
position mark
disk
detector
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
JP16111081A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5862831A (ja
Inventor
Hideo Okamura
Haruo Yamashita
Tasuku Baba
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP16111081A priority Critical patent/JPS5862831A/ja
Publication of JPS5862831A publication Critical patent/JPS5862831A/ja
Publication of JPH0252348B2 publication Critical patent/JPH0252348B2/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
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
    • G11B19/122—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of an identification or authentication mark

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Rotational Drive Of Disk (AREA)
JP16111081A 1981-10-08 1981-10-08 光学的記録再生装置 Granted JPS5862831A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16111081A JPS5862831A (ja) 1981-10-08 1981-10-08 光学的記録再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16111081A JPS5862831A (ja) 1981-10-08 1981-10-08 光学的記録再生装置

Publications (2)

Publication Number Publication Date
JPS5862831A JPS5862831A (ja) 1983-04-14
JPH0252348B2 true JPH0252348B2 (fr) 1990-11-13

Family

ID=15728791

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16111081A Granted JPS5862831A (ja) 1981-10-08 1981-10-08 光学的記録再生装置

Country Status (1)

Country Link
JP (1) JPS5862831A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0756726B2 (ja) * 1985-08-20 1995-06-14 松下電器産業株式会社 回転同期マ−ク検出装置
JPH01134752A (ja) * 1987-11-20 1989-05-26 Hitachi Ltd 回転数検出装置
JP2002067392A (ja) 2000-08-31 2002-03-05 Citizen Watch Co Ltd 光プリンタ

Also Published As

Publication number Publication date
JPS5862831A (ja) 1983-04-14

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