发明名称 |
OPTICAL RECORDING METHOD, OPTICAL RECORDING DEVICE, MASTER MEDIUM EXPOSURE DEVICE, OPTICAL INFORMATION RECORDING MEDIUM, AND REPRODUCING METHOD |
摘要 |
An optical recording method for recording information by irradiating an optical disc medium with a modulated write pulse train of laser light variable over a plurality of power levels such that a plurality of marks are formed on the optical disc medium, edge positions of each of the marks and a space between adjacent two of the marks being utilized for recording of the information. The optical recording method includes the steps of: encoding record data to generate encoded data which is a combination of marks and spaces; classifying the encoded data according to a combination of a mark length of the mark, a space length of a first space that immediately precedes the mark, and a space length of a second space that immediately succeeds the mark; generating a write pulse train for forming the mark, in which at least one of a leading end edge position, a trailing end edge position and a pulse width of the write pulse train is changed according to a classification result; and irradiating the optical disc medium with the write pulse train generated to form the plurality of marks on the optical disc medium.
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申请公布号 |
CA2722850(A1) |
申请公布日期 |
2010.04.15 |
申请号 |
CA20092722850 |
申请日期 |
2009.10.05 |
申请人 |
PANASONIC CORPORATION |
发明人 |
NAKAMURA, ATSUSHI;KOBAYASHI, ISAO;FURUMIYA, SHIGERU |
分类号 |
G11B7/0045;G11B7/125 |
主分类号 |
G11B7/0045 |
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