Invention Grant
- Patent Title: Circuits and methods for data detection
- Patent Title (中): 电路和数据检测方法
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Application No.: US14175389Application Date: 2014-02-07
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Publication No.: US09136949B1Publication Date: 2015-09-15
- Inventor: Shou-Po Shih , Tim Tri Hoang , Kazi Asaduzzaman
- Applicant: Altera Corporation
- 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: G06F1/04
- IPC: G06F1/04 ; G06F1/12 ; H04B10/61

Abstract:
A circuit includes a phase detector circuit and a data detection circuit. The phase detector circuit generates first and second phase detection signals based on a data signal and a periodic signal. The data detection circuit includes logic circuitry that generates a logic signal based on the first and second phase detection signals. The data detection circuit also includes a plurality of delay elements that generate a series of delayed detection signals based on the logic signal. The data detection circuit generates a data detection signal indicating when the data signal contains data based on the series of delayed detection signals.
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