Invention Grant
- Patent Title: Method and apparatus for 0/180 degree phase detector
- Patent Title (中): 0/180度相位检测器的方法和装置
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Application No.: US11311821Application Date: 2005-12-19
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Publication No.: US07885361B2Publication Date: 2011-02-08
- Inventor: Cosmin Iorga
- Applicant: Cosmin Iorga
- Applicant Address: US MA North Reading
- Assignee: Teradyne, Inc.
- Current Assignee: Teradyne, Inc.
- Current Assignee Address: US MA North Reading
- Agency: Wolf, Greenfield & Sacks, P.C.
- Main IPC: H04L27/00
- IPC: H04L27/00
Abstract:
An embodiment of the present invention provides a system for detecting a phase-shifted signal at high frequencies in data and clock recovery circuitry. An up-pulse generator, in one embodiment, provides output pulses having a duration exceeding the duration of input pulses upon detection of a phase-shifted signal leading the reference signal. A down-pulse generator provides output pulses having a duration exceeding the duration of input pulses upon detection of a phase-shifted signal lagging the reference signal.
Public/Granted literature
- US20070140379A1 Method and apparatus for 0/180 degree phase detector Public/Granted day:2007-06-21
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