JPS6223370B2 - - Google Patents

Info

Publication number
JPS6223370B2
JPS6223370B2 JP54061444A JP6144479A JPS6223370B2 JP S6223370 B2 JPS6223370 B2 JP S6223370B2 JP 54061444 A JP54061444 A JP 54061444A JP 6144479 A JP6144479 A JP 6144479A JP S6223370 B2 JPS6223370 B2 JP S6223370B2
Authority
JP
Japan
Prior art keywords
track
signal
pits
meandering
tracking
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
JP54061444A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55157133A (en
Inventor
Kiichi Kamyanagi
Kazuo Shigematsu
Takeshi Maeda
Toshio Sugyama
Ryuichi Koike
Seiji Yonezawa
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 JP6144479A priority Critical patent/JPS55157133A/ja
Publication of JPS55157133A publication Critical patent/JPS55157133A/ja
Publication of JPS6223370B2 publication Critical patent/JPS6223370B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
JP6144479A 1979-05-21 1979-05-21 Information recording and reproducing device Granted JPS55157133A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6144479A JPS55157133A (en) 1979-05-21 1979-05-21 Information recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6144479A JPS55157133A (en) 1979-05-21 1979-05-21 Information recording and reproducing device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP29481886A Division JPS62157333A (ja) 1986-12-12 1986-12-12 情報再生装置

Publications (2)

Publication Number Publication Date
JPS55157133A JPS55157133A (en) 1980-12-06
JPS6223370B2 true JPS6223370B2 (enrdf_load_stackoverflow) 1987-05-22

Family

ID=13171234

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6144479A Granted JPS55157133A (en) 1979-05-21 1979-05-21 Information recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS55157133A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58218049A (ja) * 1982-06-14 1983-12-19 Mansei Kogyo Kk 光学的情報読取装置の焦点制御信号検出方法
FR2581784B1 (fr) * 1985-05-10 1994-03-25 Thomson Alcatel Gigadisc Support d'information a pregravure et son dispositif de lecture optique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5239960A (en) * 1975-09-23 1977-03-28 Toyo Pulp Kk Method for treating stency sewage
JPS6010371B2 (ja) * 1976-06-17 1985-03-16 オリンパス光学工業株式会社 円盤状記録媒体の再生装置

Also Published As

Publication number Publication date
JPS55157133A (en) 1980-12-06

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