Invention Grant
- Patent Title: Method and system for a glitch correction in an all digital phase lock loop
- Patent Title (中): 全数字锁相环中毛刺校正的方法和系统
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Application No.: US12838754Application Date: 2010-07-19
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Publication No.: US08222939B2Publication Date: 2012-07-17
- Inventor: Koji Takinami , Richard Strandberg , Paul Cheng-Po Liang
- Applicant: Koji Takinami , Richard Strandberg , Paul Cheng-Po Liang
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Main IPC: H03L7/06
- IPC: H03L7/06

Abstract:
The present invention relates to a method and system for glitch correction in an all digital phase lock loop. An all digital phase lock loop can include a phase error signal generation unit, a multi-phase oscillator, a glitch correction unit, and a phase to digital converter. The phase to digital converter receives a multi-phase signal from the multi-phase oscillator and generates a phase signal. The error signal generation unit receives the phase signal and a reference phase signal and generates a phase error signal, which is fed to the glitch correction unit. The glitch correction unit removes the glitches in the phase error signal by a portion of the phase error signal. The phase lock loop can also include a phase rotator and a calibration block. The calibration block instructs the phase rotator to rotate the multi-phase signal by the phase rotation which generates the minimum number of glitches.
Public/Granted literature
- US20120013363A1 METHOD AND SYSTEM FOR A GLITCH CORRECTION IN AN ALL DIGITAL PHASE LOCK LOOP Public/Granted day:2012-01-19
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