Title:
光情報記録方法
Document Type and Number:
Japanese Patent JP4142338
Kind Code:
B2
Abstract:
An optical information recording method of recording information on an optical information recording medium by irradiation of laser beam, the method comprises the steps of: forming a recording waveform which forms a first pit having a shortest pit length, by using a top pulse having a width narrower than a width of a channel clock cycle; forming a recording waveform which forms a second pit that is second shortest following the first pit, by using the top pulse and a terminal pulse having a width narrower than the width of the channel clock cycle; and forming a recording waveform which forms a pit that is longer than the second pit, by using the top pulse, the terminal pulse, and at least one multipulse formed between the top pulse and the terminal pulse. According to the method described above, pits having stable shape can be formed and thus jitter of reproduced signals can be reduced in an optical information recording medium having a narrow track pitch and high recording density.
Inventors:
Yuhisa Usami
Application Number:
JP2002133835A
Publication Date:
September 03, 2008
Filing Date:
May 09, 2002
Export Citation:
Assignee:
FUJIFILM Corporation
International Classes:
G11B7/0045; G11B7/006; G11B7/125
Domestic Patent References:
| JP2001126260A | ||||
| JP2000082215A | ||||
| JP2001273636A | ||||
| JP2001351269A |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda
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