发明名称 |
Recording medium, recording apparatus and recording method |
摘要 |
Optimum movement of first and last signal pulses based on the data pattern is determined before data recording to record marks in the correct position. A specific pattern signal is read from a disc track and digitized with an appropriate slice level by the digitizing circuit ( 115 ). A pulse position offset measuring circuit ( 120 ) then measures specific edge intervals in the resulting digital signal. Movement of the first and last pulse by the pulse moving circuit ( 110 ) is then set so that the offset between the measured edge interval and a predetermined standard edge interval is ideally zero. |
申请公布号 |
US2005185558(A1) |
申请公布日期 |
2005.08.25 |
申请号 |
US20050108866 |
申请日期 |
2005.04.19 |
申请人 |
SHOJI MAMORU;ISHIDA TAKASHI;NAKAMURA ATSUSHI;MINAMINO JUNICHI |
发明人 |
SHOJI MAMORU;ISHIDA TAKASHI;NAKAMURA ATSUSHI;MINAMINO JUNICHI |
分类号 |
G11B7/0045;G11B5/09;G11B7/00;G11B7/0037;G11B7/005;G11B7/006;G11B7/007;G11B7/013;G11B7/12;G11B7/125;G11B7/24;G11B7/26;G11B19/12;G11B20/10;G11B20/12;(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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