JPH0427613B2 - - Google Patents

Info

Publication number
JPH0427613B2
JPH0427613B2 JP56148511A JP14851181A JPH0427613B2 JP H0427613 B2 JPH0427613 B2 JP H0427613B2 JP 56148511 A JP56148511 A JP 56148511A JP 14851181 A JP14851181 A JP 14851181A JP H0427613 B2 JPH0427613 B2 JP H0427613B2
Authority
JP
Japan
Prior art keywords
rotation start
start position
disk
position mark
waveform
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
JP56148511A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5850637A (ja
Inventor
Haruo Yamashita
Tamotsu Matsuo
Hideo Okamura
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 JP56148511A priority Critical patent/JPS5850637A/ja
Publication of JPS5850637A publication Critical patent/JPS5850637A/ja
Publication of JPH0427613B2 publication Critical patent/JPH0427613B2/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
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
    • G11B23/42—Marks for indexing, speed-controlling, synchronising, or timing

Landscapes

  • Magnetic Record Carriers (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)
JP56148511A 1981-09-18 1981-09-18 円板状記録担体および記録再生装置 Granted JPS5850637A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56148511A JPS5850637A (ja) 1981-09-18 1981-09-18 円板状記録担体および記録再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56148511A JPS5850637A (ja) 1981-09-18 1981-09-18 円板状記録担体および記録再生装置

Publications (2)

Publication Number Publication Date
JPS5850637A JPS5850637A (ja) 1983-03-25
JPH0427613B2 true JPH0427613B2 (enrdf_load_stackoverflow) 1992-05-12

Family

ID=15454396

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56148511A Granted JPS5850637A (ja) 1981-09-18 1981-09-18 円板状記録担体および記録再生装置

Country Status (1)

Country Link
JP (1) JPS5850637A (enrdf_load_stackoverflow)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52137919A (en) * 1976-05-14 1977-11-17 Teac Corp Disk recorder reproducer
JPS55103854U (enrdf_load_stackoverflow) * 1979-01-10 1980-07-19
JPS55120273A (en) * 1979-03-09 1980-09-16 Matsushita Electric Ind Co Ltd Recording and reproducing device
JPS55125548A (en) * 1979-03-16 1980-09-27 Pioneer Electronic Corp Rotary type encoder and its preparation
FR2504713B1 (fr) * 1981-04-27 1986-04-11 Thomson Csf Disque support d'information a codage angulaire et systeme d'entrainement en rotation d'un tel disque
EP0099651A3 (en) * 1981-07-23 1984-03-21 Comtech Research Unit Limited Optical data storage

Also Published As

Publication number Publication date
JPS5850637A (ja) 1983-03-25

Similar Documents

Publication Publication Date Title
CA1100233A (en) Scanning light beam of changing size
JPS6163930A (ja) 円盤状記録担体及び円盤状記録担体のアドレス信号再生装置
JPH08147699A (ja) 情報記録再生装置
JPH0427613B2 (enrdf_load_stackoverflow)
US5260930A (en) Optical information recording medium and reproducing apparatus for reproducing information from the medium
JPH0252348B2 (enrdf_load_stackoverflow)
JPS61151843A (ja) 光メモリデイスク
JPS6318253B2 (enrdf_load_stackoverflow)
JPH0241093B2 (enrdf_load_stackoverflow)
JPH1011766A (ja) 円盤状光記録媒体記録再生装置および円盤状光記録媒体
JPH0353705B2 (enrdf_load_stackoverflow)
JPH0249497B2 (ja) Kogakutekikirokusaiseisochi
JPS6275270A (ja) デイスク回転検出装置
US5293368A (en) Apparatus from reproducing address data on a disk
JPH0756726B2 (ja) 回転同期マ−ク検出装置
JPS5930250A (ja) 光学的情報記録装置のトラツキング制御方法
JPS608529B2 (ja) 光学式再生装置の波形補正回路
JPS5848812A (ja) 情報記録再生装置
JPS58158007A (ja) 円盤状記録媒体を用いた記録再生装置
JP3076759B2 (ja) 光ディスク及び光ディスク装置
JPS6242366A (ja) 回転同期マ−ク検出装置
JPS5897145A (ja) 光学デイスク
JPS61104347A (ja) デイスク装置
JPH0352147B2 (enrdf_load_stackoverflow)
JPH02118919A (ja) 光ディスク装置