Invention Grant
- Patent Title: Circuits and methods using a majority vote
- Patent Title (中): 使用多数票的电路和方法
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Application No.: US13078421Application Date: 2011-04-01
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Publication No.: US08687738B1Publication Date: 2014-04-01
- Inventor: Swee Wah Lee , Teng Chow Ooi , Chuan Khye Chai
- Applicant: Swee Wah Lee , Teng Chow Ooi , Chuan Khye Chai
- Applicant Address: US CA San Jose
- Assignee: Altera Corporation
- Current Assignee: Altera Corporation
- Current Assignee Address: US CA San Jose
- Agent Steven J. Cahill
- Main IPC: H04L27/00
- IPC: H04L27/00

Abstract:
A clock data recovery circuit includes a phase detector circuit, a majority voter circuit, and a phase shift circuit. The phase detector circuit is operable to compare a phase of a periodic signal to a phase of a data signal to generate a phase error signal. The majority voter circuit includes a shift register circuit. The shift register circuit is operable to generate an output signal based on the phase error signal. The majority voter circuit is operable to generate a majority vote of the phase error signal based on the output signal of the shift register circuit. The phase shift circuit is operable to set the phase of the periodic signal based on the majority vote generated by the majority voter circuit.
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