JPS6346496B2 - - Google Patents

Info

Publication number
JPS6346496B2
JPS6346496B2 JP54061445A JP6144579A JPS6346496B2 JP S6346496 B2 JPS6346496 B2 JP S6346496B2 JP 54061445 A JP54061445 A JP 54061445A JP 6144579 A JP6144579 A JP 6144579A JP S6346496 B2 JPS6346496 B2 JP S6346496B2
Authority
JP
Japan
Prior art keywords
track
signal
information
pits
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
JP54061445A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55157134A (en
Inventor
Takeshi Maeda
Seiji Yonezawa
Toshio Sugyama
Ryuichi Koike
Kiichi Kamyanagi
Kazuo Shigematsu
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 JP6144579A priority Critical patent/JPS55157134A/ja
Publication of JPS55157134A publication Critical patent/JPS55157134A/ja
Publication of JPS6346496B2 publication Critical patent/JPS6346496B2/ja
Granted legal-status Critical Current

Links

JP6144579A 1979-05-21 1979-05-21 Information groove tracing unit Granted JPS55157134A (en)

Priority Applications (1)

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

Applications Claiming Priority (1)

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

Related Child Applications (1)

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

Publications (2)

Publication Number Publication Date
JPS55157134A JPS55157134A (en) 1980-12-06
JPS6346496B2 true JPS6346496B2 (ko) 1988-09-16

Family

ID=13171261

Family Applications (1)

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

Country Status (1)

Country Link
JP (1) JPS55157134A (ko)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01171268U (ko) * 1988-05-24 1989-12-04
JPH01177572U (ko) * 1988-05-26 1989-12-19
JPH0223864U (ko) * 1988-08-04 1990-02-16
JPH02145854A (ja) * 1988-11-25 1990-06-05 Futaba Shokai:Kk 遠赤外線を放射する布状体およびそれを使用する人体の加温方法
JPH0378004U (ko) * 1989-11-30 1991-08-07
JPH0520219Y2 (ko) * 1988-02-16 1993-05-26

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6233338A (ja) * 1985-07-30 1987-02-13 オプテイカル　ストレツジ　インタ−ナシヨナル−ユ−エス デ−タ記憶装置用記録キヤリア
DE3687495T2 (de) * 1985-07-30 1993-07-29 Philips Nv Generatorkreis fuer spursignal und aufzeichnungstraeger dafuer.
CA1257389A (en) * 1985-07-30 1989-07-11 Kurt W. Getreuer Optical disk tracking and seeking systems and specific track formats (discontinuities)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5068413A (ko) * 1973-10-17 1975-06-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5068413A (ko) * 1973-10-17 1975-06-07

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0520219Y2 (ko) * 1988-02-16 1993-05-26
JPH01171268U (ko) * 1988-05-24 1989-12-04
JPH01177572U (ko) * 1988-05-26 1989-12-19
JPH0223864U (ko) * 1988-08-04 1990-02-16
JPH02145854A (ja) * 1988-11-25 1990-06-05 Futaba Shokai:Kk 遠赤外線を放射する布状体およびそれを使用する人体の加温方法
JPH0378004U (ko) * 1989-11-30 1991-08-07

Also Published As

Publication number Publication date
JPS55157134A (en) 1980-12-06

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