Invention Grant
US08798217B2 Method and digital circuit for recovering a clock and data from an input signal using a digital frequency detection
有权
用于使用数字频率检测从输入信号中恢复时钟和数据的方法和数字电路
- Patent Title: Method and digital circuit for recovering a clock and data from an input signal using a digital frequency detection
- Patent Title (中): 用于使用数字频率检测从输入信号中恢复时钟和数据的方法和数字电路
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Application No.: US12938405Application Date: 2010-11-03
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Publication No.: US08798217B2Publication Date: 2014-08-05
- Inventor: Xiaohua Kong , Zhi Zhu , Nam V. Dang , Tirdad Sowlati
- Applicant: Xiaohua Kong , Zhi Zhu , Nam V. Dang , Tirdad Sowlati
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Sam Talpalaysky; Nicholas J. Pauley; Joseph Agusta
- Main IPC: H04L7/00
- IPC: H04L7/00
Abstract:
In a particular embodiment, a digital circuit includes a frequency detection circuit operative to compare information related to transitions between sequential samples of a received signal. The frequency detection circuit is further operative to generate a control signal to reduce a sampling rate of the received signal in response to a predetermined number of the sequential samples having a same value. The digital circuit also includes a digital phase detector operative to provide the information related to the transitions between sequential samples to the frequency detection circuit.
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