发明名称 |
PHASE-CHANGE OPTICAL RECORDING MEDIUM, OPTICAL RECODING METHOD, AND OPTICAL RECORDER |
摘要 |
<p>The object is to provide an optical recording method improving the recording characteristics and uniformity in a CAV recording on a phase-change optical recording medium, particularly a high-speed rewritable DVD medium, and a phase-change optical recording medium and an optical recording apparatus used by the method. Regarding a recording method for recording on the phase-change optical recording medium where a recording light comprises a pulse string of heating and cooling pulses, and a light for erasing, an irradiation power is controlled by peak power (Pp), bottom power (Pb) and erase power (Pe), at least any one of Pe/Pp, Pp, Pb and Pe is variable from the minimum to maximum recording linear velocities allowed for the medium, and further the irradiation time of each pulse is varied proportionally with clock T corresponding to a recording linear velocity, the present invention provides an optical recording method which performs a recording by varying at least Pe/Pp from a specific recording linear velocity lower than a peculiar recording linear velocity at which the recording linear velocity degrades abruptly showing a local maximum value, and an optical recording medium and an optical recording apparatus used by the method.</p> |
申请公布号 |
EP1659576(A1) |
申请公布日期 |
2006.05.24 |
申请号 |
EP20040772063 |
申请日期 |
2004.08.24 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
YUZURIHARA, HAJIME;DEGUCHI, HIROSHI,;YAMADA, KATSUYUKI;NARUMI, SHINYA;TAKADA, MIKIKO;HIBINO, EIKO;MIURA, HIROSHI |
分类号 |
G11B7/0045;G11B7/006;G11B7/007;G11B7/125;G11B7/243;G11B7/24;(IPC1-7):G11B7/004 |
主分类号 |
G11B7/0045 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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