发明名称 |
Method and device for dynamically calibrating frequency |
摘要 |
The method and the device thereof for dynamically calibrating a frequency is provided. The method includes steps of: (a) providing a first system frequency; (b) obtaining a first parameter of timer counting number; (c) providing a second system frequency; (d) obtaining a second parameter of timer counting number if there is a frequency drift between said first system frequency and said second system frequency; (e) obtaining a third parameter of timer interrupt interval by comparing said first parameter of timer counting number with said second parameter of timer counting number; and (f) calibrating a frequency output according to said third parameter of timer interrupt interval.
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申请公布号 |
US2004201403(A1) |
申请公布日期 |
2004.10.14 |
申请号 |
US20040818815 |
申请日期 |
2004.04.06 |
申请人 |
HOLTEK SEMICONDUCTOR INC. |
发明人 |
CHEN CHUN-HSIUNG;WANG SHENG-HO |
分类号 |
G01R35/00;H03D3/00;(IPC1-7):H03D3/00 |
主分类号 |
G01R35/00 |
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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