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JPS53148410A - Erasing method of information contents having been recorded recording media - Google Patents

Erasing method of information contents having been recorded recording media

Info

Publication number
JPS53148410A
JPS53148410A JP6272677A JP6272677A JPS53148410A JP S53148410 A JPS53148410 A JP S53148410A JP 6272677 A JP6272677 A JP 6272677A JP 6272677 A JP6272677 A JP 6272677A JP S53148410 A JPS53148410 A JP S53148410A
Authority
JP
Japan
Prior art keywords
recording media
information contents
erasing method
recorded recording
erasing
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
JP6272677A
Other languages
Japanese (ja)
Inventor
Manabu Yamamoto
Shuzo Fukunishi
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP6272677A priority Critical patent/JPS53148410A/en
Publication of JPS53148410A publication Critical patent/JPS53148410A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE: To erase information through heating while preventing write process at every one track by making the intensity distrubution of a laser beam section uniform and using the laser output necessary for erasing energy.
COPYRIGHT: (C)1978,JPO&Japio
JP6272677A 1977-05-31 1977-05-31 Erasing method of information contents having been recorded recording media Pending JPS53148410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6272677A JPS53148410A (en) 1977-05-31 1977-05-31 Erasing method of information contents having been recorded recording media

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6272677A JPS53148410A (en) 1977-05-31 1977-05-31 Erasing method of information contents having been recorded recording media

Publications (1)

Publication Number Publication Date
JPS53148410A true JPS53148410A (en) 1978-12-25

Family

ID=13208645

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6272677A Pending JPS53148410A (en) 1977-05-31 1977-05-31 Erasing method of information contents having been recorded recording media

Country Status (1)

Country Link
JP (1) JPS53148410A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4403318A (en) * 1980-04-23 1983-09-06 Matsushita Electric Industrial Co., Ltd. Apparatus and method for recording, reproducing and erasing on optical recording discs
JPS615446A (en) * 1984-06-19 1986-01-11 Matsushita Electric Ind Co Ltd Erasable optical recording and reproducing device
JPS63148423A (en) * 1986-12-10 1988-06-21 Matsushita Electric Ind Co Ltd Initializing device for optical recording medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4403318A (en) * 1980-04-23 1983-09-06 Matsushita Electric Industrial Co., Ltd. Apparatus and method for recording, reproducing and erasing on optical recording discs
JPS615446A (en) * 1984-06-19 1986-01-11 Matsushita Electric Ind Co Ltd Erasable optical recording and reproducing device
JPS63148423A (en) * 1986-12-10 1988-06-21 Matsushita Electric Ind Co Ltd Initializing device for optical recording medium

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