Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing
Reexamination Certificate
2011-05-10
2011-05-10
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synchronizing
C327S149000
Reexamination Certificate
active
07940097
ABSTRACT:
An all digital phase locked loop circuit includes a reference frequency indicator for receiving a reference signal with a reference frequency and generating a frequency indicating value; a phase frequency detector for comparing the reference signal with a frequency divided signal and generating a phase difference pulse; a time-to-digital circuit for receiving the phase difference pulse and a plurality of output signals and generating a phase difference value; a digital controller for receiving the frequency indicating value and the phase difference value and generating a control value; a delta-sigma modulator for modulating the control value and generating a modulated control value; a DCO for receiving the modulated control value and generating an output oscillating signal with a digital controlled frequency; a frequency divider for dividing the digital controlled frequency to generate the frequency divided signal; and a multi-phase generator for receiving the output oscillating signal and generating the output signals.
REFERENCES:
patent: 7483508 (2009-01-01), Staszewski et al.
patent: 7557623 (2009-07-01), Moehlmann et al.
patent: 7609756 (2009-10-01), Wood
patent: 7714668 (2010-05-01), Yoshida et al.
patent: 7719366 (2010-05-01), Tsuda
patent: 7791384 (2010-09-01), Lee et al.
patent: 7795937 (2010-09-01), Smith et al.
patent: 7839221 (2010-11-01), Kossel et al.
patent: 7859344 (2010-12-01), Uozumi et al.
patent: 2004/0196937 (2004-10-01), Wang et al.
patent: 2005/0258908 (2005-11-01), Mitric
patent: 2008/0191750 (2008-08-01), Wang
patent: 2009/0296532 (2009-12-01), Hsieh
patent: 2010/0277211 (2010-11-01), Geng et al.
patent: 2010/0289541 (2010-11-01), Wu
patent: 2010/0315140 (2010-12-01), Mayer et al.
patent: 1442955 (2003-09-01), None
Donovan Lincoln
Houston Adam D
King Justin
Sunplus Technology Co. Ltd.
WPAT, PC
LandOfFree
All digital phase locked loop circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with All digital phase locked loop circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and All digital phase locked loop circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2625372