JPS6387616A - 光ディスク媒体 - Google Patents

光ディスク媒体

Info

Publication number
JPS6387616A
JPS6387616A JP62093033A JP9303387A JPS6387616A JP S6387616 A JPS6387616 A JP S6387616A JP 62093033 A JP62093033 A JP 62093033A JP 9303387 A JP9303387 A JP 9303387A JP S6387616 A JPS6387616 A JP S6387616A
Authority
JP
Japan
Prior art keywords
signal
track
tracks
periods
information
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
JP62093033A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0519771B2 (cs
Inventor
Takeshi Maeda
武志 前田
Seiji Yonezawa
米沢　成二
Toshio Sugiyama
俊夫 杉山
Ryuichi Koike
隆一 小池
Kiichi Kamiyanagi
喜一 上柳
Kazuo Shigematsu
和男 重松
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 JP62093033A priority Critical patent/JPS6387616A/ja
Publication of JPS6387616A publication Critical patent/JPS6387616A/ja
Publication of JPH0519771B2 publication Critical patent/JPH0519771B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
JP62093033A 1987-04-17 1987-04-17 光ディスク媒体 Granted JPS6387616A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62093033A JPS6387616A (ja) 1987-04-17 1987-04-17 光ディスク媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62093033A JPS6387616A (ja) 1987-04-17 1987-04-17 光ディスク媒体

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP6144579A Division JPS55157134A (en) 1979-05-21 1979-05-21 Information groove tracing unit

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP3213383A Division JPH07122965B2 (ja) 1991-08-26 1991-08-26 トラッキング方法

Publications (2)

Publication Number Publication Date
JPS6387616A true JPS6387616A (ja) 1988-04-18
JPH0519771B2 JPH0519771B2 (cs) 1993-03-17

Family

ID=14071182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62093033A Granted JPS6387616A (ja) 1987-04-17 1987-04-17 光ディスク媒体

Country Status (1)

Country Link
JP (1) JPS6387616A (cs)

Also Published As

Publication number Publication date
JPH0519771B2 (cs) 1993-03-17

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