JPS6446231A - Recording method for optical information recording member - Google Patents
Recording method for optical information recording memberInfo
- Publication number
- JPS6446231A JPS6446231A JP62203642A JP20364287A JPS6446231A JP S6446231 A JPS6446231 A JP S6446231A JP 62203642 A JP62203642 A JP 62203642A JP 20364287 A JP20364287 A JP 20364287A JP S6446231 A JPS6446231 A JP S6446231A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- record
- indicated
- recording mark
- completing
- 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
Links
Abstract
PURPOSE:To obtain symmetrical recording marks at the record starting part and the record completing part by irradiating laser light with high energy density for the starting part of the recording mark and with low density for the completing part at the time of forming of a recording mark. CONSTITUTION:The output waveform of a semiconductor laser, which is inputted to an optical disk and whose intensity is modulated, is indicated in a figure (a), the changing condition of the reached temperature of a recording material at the time of the irradiation of the light is indicated in a figure (b), and the condition of the recording mark actually formed on the recording material is indicated in a figure (c). When the recording mark is formed, the energy of the irradiated light is gradually decreased in accordance with progress from the record starting part to the record completing part. For that method, plural pulses for recording are constituted so that the pulse width of the top pule may be wider than those of succeeding pulses. Thus, the obtained recording marks are symmetrical at the to part and at the terminal part.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62203642A JP2615650B2 (en) | 1987-08-17 | 1987-08-17 | Recording method for optical information recording member |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62203642A JP2615650B2 (en) | 1987-08-17 | 1987-08-17 | Recording method for optical information recording member |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6446231A true JPS6446231A (en) | 1989-02-20 |
JP2615650B2 JP2615650B2 (en) | 1997-06-04 |
Family
ID=16477424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62203642A Expired - Fee Related JP2615650B2 (en) | 1987-08-17 | 1987-08-17 | Recording method for optical information recording member |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2615650B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01150230A (en) * | 1987-12-07 | 1989-06-13 | Hitachi Ltd | Information recording method |
US5608710A (en) * | 1994-01-31 | 1997-03-04 | Hitachi, Ltd. | Phase changing recording medium with amorphous points each formed by a pair of high power and low recording pulses |
US6940797B1 (en) | 1999-06-25 | 2005-09-06 | Samsung Electronics Co., Ltd. | Apparatus and method of compensating for tilt and/or defocus of a disc during recording |
JP2008503842A (en) * | 2004-06-22 | 2008-02-07 | インターナショナル・ビジネス・マシーンズ・コーポレーション | Data storage device and method for operating a data storage device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS628371A (en) * | 1985-07-04 | 1987-01-16 | Matsushita Electric Ind Co Ltd | Signal recording device |
JPS63160017A (en) * | 1986-12-23 | 1988-07-02 | Yamaha Corp | Optical disk recorder |
-
1987
- 1987-08-17 JP JP62203642A patent/JP2615650B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS628371A (en) * | 1985-07-04 | 1987-01-16 | Matsushita Electric Ind Co Ltd | Signal recording device |
JPS63160017A (en) * | 1986-12-23 | 1988-07-02 | Yamaha Corp | Optical disk recorder |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01150230A (en) * | 1987-12-07 | 1989-06-13 | Hitachi Ltd | Information recording method |
US5608710A (en) * | 1994-01-31 | 1997-03-04 | Hitachi, Ltd. | Phase changing recording medium with amorphous points each formed by a pair of high power and low recording pulses |
US6940797B1 (en) | 1999-06-25 | 2005-09-06 | Samsung Electronics Co., Ltd. | Apparatus and method of compensating for tilt and/or defocus of a disc during recording |
JP2008503842A (en) * | 2004-06-22 | 2008-02-07 | インターナショナル・ビジネス・マシーンズ・コーポレーション | Data storage device and method for operating a data storage device |
US8107353B2 (en) | 2004-06-22 | 2012-01-31 | International Business Machines Corporation | Data storage device and method for operating a data storage system |
Also Published As
Publication number | Publication date |
---|---|
JP2615650B2 (en) | 1997-06-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |