发明名称 |
PHASE LOCKED LOOP FOR CONTROLLING AN OPTICAL RECORDING DEVICE AND METHOD THEREOF |
摘要 |
A phase locked loop (PLL) system for generating a reference clock to write recording data on an optical medium includes a clock generator generating the reference clock according to a phase difference between the reference signal and a first frequency-divided signal; a phase-shift detector generating a phase adjusting signal; and a phase-controllable frequency divider dividing the frequency of the reference clock to generate the first frequency-divided signal, and receiving the phase adjusting signal to adjust the phase of the first frequency-divided signal. The phase-shift detector includes an ADIP sync detector generating an ADIP synchronization signal synchronous to the ADIP units of the optical medium; a frequency divider dividing the reference clock to generate a second frequency-divided signal; and a phase difference detector detecting a phase difference between the second frequency-divided signal and the ADIP synchronization signal to generate the phase adjusting signal.
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申请公布号 |
US2006197604(A1) |
申请公布日期 |
2006.09.07 |
申请号 |
US20060383754 |
申请日期 |
2006.05.16 |
申请人 |
CHEN HONG-CHING;CHANG CHI-MING |
发明人 |
CHEN HONG-CHING;CHANG CHI-MING |
分类号 |
H03L7/085 |
主分类号 |
H03L7/085 |
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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