发明名称 |
Write signal control circuit in an optical disk drive |
摘要 |
A write signal control circuit in an optical disk drive for adjusting the duty cycle of the write signals by a duty cycle adjusting unit. The write signal control circuit includes a write signal generator for converting an EFM signal into the write signals according to the write strategy waveform generating rules, a duty cycle adjusting unit for adjusting the duty cycle of each write signal according to adjusting parameters and for outputting adjusted write signals, and a duty cycle detector for detecting the duty cycle of each adjusted write signal and outputting a respective duty cycle control signal. The duty cycle adjusting unit further receives the duty cycle control signal to adapt the adjusting parameters.
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申请公布号 |
US7471599(B2) |
申请公布日期 |
2008.12.30 |
申请号 |
US20040880533 |
申请日期 |
2004.07.01 |
申请人 |
MEDIATEK INC. |
发明人 |
HSU TSE-HSIANG;CHEN CHIH-CHENG;LIU YUAN-CHIN |
分类号 |
G11B7/0045;G11B5/09;G11B7/00;G11B7/125 |
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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