Invention Grant
- Patent Title: Frequency calibration circuit for automatically calibrating frequency and method thereof
- Patent Title (中): 用于自动校准频率的频率校准电路及其方法
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Application No.: US12907999Application Date: 2010-10-20
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Publication No.: US08634506B2Publication Date: 2014-01-21
- Inventor: Fu-Yuan Hsiao , Ke-Ning Pan
- Applicant: Fu-Yuan Hsiao , Ke-Ning Pan
- Applicant Address: TW Science-Based Industrial Park, Hsinchu
- Assignee: Weltrend Semiconductor Inc.
- Current Assignee: Weltrend Semiconductor Inc.
- Current Assignee Address: TW Science-Based Industrial Park, Hsinchu
- Agent Winston Hsu; Scott Margo
- Main IPC: H04L27/06
- IPC: H04L27/06
Abstract:
Generate a series of digital data according to a pair of differential signals received from a low speed universal serial bus. Calibrate coarsely a frequency of an oscillator according to a width of an end-of-packet of the series of digital data. And calibrate finely the frequency of the oscillator according to a width of a SYNC pattern of the series of digital data.
Public/Granted literature
- US20120002764A1 FREQUENCY CALIBRATION CIRCUIT FOR AUTOMATICALLY CALIBRATING FREQUENCY AND METHOD THEREOF Public/Granted day:2012-01-05
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