JPS5622227A - Information recording system of optical disk - Google Patents

Information recording system of optical disk

Info

Publication number
JPS5622227A
JPS5622227A JP9771779A JP9771779A JPS5622227A JP S5622227 A JPS5622227 A JP S5622227A JP 9771779 A JP9771779 A JP 9771779A JP 9771779 A JP9771779 A JP 9771779A JP S5622227 A JPS5622227 A JP S5622227A
Authority
JP
Japan
Prior art keywords
optical disk
information
pit
line
pits
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.)
Pending
Application number
JP9771779A
Other languages
Japanese (ja)
Inventor
Hiroyasu Murakami
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP9771779A priority Critical patent/JPS5622227A/en
Publication of JPS5622227A publication Critical patent/JPS5622227A/en
Pending legal-status Critical Current

Links

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  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE: To improve the precision of tracking operation with the same simple constitution with reproduction by previously formating a pit line on a optical disk and by recording information while tracking the pin line.
CONSTITUTION: Pit line 1 consists of pits 2 of fixed diameter arrayed at constant pitch (m). In manufacture of an optical disk, this pit line 1 can be formed by easy and highly precise work such as press. Then, while pits 3 are tracked by an optical head, the optical disk with pit line 1 previously formated is newly perforated with laser beam light in accordance with information to be recorded between respective pits 2 of pit line 1, recording the information. In the recording example in the figure, pit 3 is bored for information "1", and nothing for "0".
COPYRIGHT: (C)1981,JPO&Japio
JP9771779A 1979-07-31 1979-07-31 Information recording system of optical disk Pending JPS5622227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9771779A JPS5622227A (en) 1979-07-31 1979-07-31 Information recording system of optical disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9771779A JPS5622227A (en) 1979-07-31 1979-07-31 Information recording system of optical disk

Publications (1)

Publication Number Publication Date
JPS5622227A true JPS5622227A (en) 1981-03-02

Family

ID=14199634

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9771779A Pending JPS5622227A (en) 1979-07-31 1979-07-31 Information recording system of optical disk

Country Status (1)

Country Link
JP (1) JPS5622227A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2508218A1 (en) * 1981-06-18 1982-12-24 Tokyo Shibaura Electric Co OPTICAL DISK AND OPTICAL DISC APPARATUS FOR USE THEREOF
EP0089734A2 (en) * 1982-03-19 1983-09-28 Control Data Corporation Disk-shaped record carrier
FR2569038A1 (en) * 1981-11-25 1986-02-14 Hitachi Ltd APPARATUS FOR RECORDING AND REPRODUCING INFORMATION
JPS61264559A (en) * 1985-05-17 1986-11-22 Ricoh Co Ltd Optical disc
JPS62170027A (en) * 1986-01-22 1987-07-27 Hitachi Ltd Information recording medium and recording/reproducing method
JPS62264435A (en) * 1986-05-12 1987-11-17 Csk Corp Recording system for data of optical recording medium
JPS63823A (en) * 1986-05-17 1988-01-05 Csk Corp Data read/write system for optical recording medium
WO1989000749A1 (en) * 1987-07-15 1989-01-26 Kabushiki Kaisha Csk Apparatus for writing/reading data on an optical recording medium

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2508218A1 (en) * 1981-06-18 1982-12-24 Tokyo Shibaura Electric Co OPTICAL DISK AND OPTICAL DISC APPARATUS FOR USE THEREOF
US4761775A (en) * 1981-06-18 1988-08-02 Tokyo Shibaura Denki Kabushiki Kaisha Optical disc using tracking and clocking prepits and address prepits between adjacent ones of the tracking and clocking prepits, and an optical apparatus using such a disc
FR2569038A1 (en) * 1981-11-25 1986-02-14 Hitachi Ltd APPARATUS FOR RECORDING AND REPRODUCING INFORMATION
EP0089734A2 (en) * 1982-03-19 1983-09-28 Control Data Corporation Disk-shaped record carrier
JPS61264559A (en) * 1985-05-17 1986-11-22 Ricoh Co Ltd Optical disc
JPS62170027A (en) * 1986-01-22 1987-07-27 Hitachi Ltd Information recording medium and recording/reproducing method
JPS62264435A (en) * 1986-05-12 1987-11-17 Csk Corp Recording system for data of optical recording medium
JPS63823A (en) * 1986-05-17 1988-01-05 Csk Corp Data read/write system for optical recording medium
WO1989000749A1 (en) * 1987-07-15 1989-01-26 Kabushiki Kaisha Csk Apparatus for writing/reading data on an optical recording medium

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