Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing
Reexamination Certificate
2009-09-21
2011-11-01
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synchronizing
C327S148000
Reexamination Certificate
active
08049540
ABSTRACT:
A method for calibrating a bandwidth of a phase-locked loop begins with detecting an error signal generated by the phase-locked loop in response to a stimulus signal. The difference between the integral of the error signal and a nominal value thereof is computed, and the bandwidth of the phase-locked loop is adjusted based on the computed difference.
REFERENCES:
patent: 6359950 (2002-03-01), Gossmann et al.
patent: 6670861 (2003-12-01), Balboni
patent: 6731145 (2004-05-01), Humphreys et al.
patent: 6806780 (2004-10-01), Fontaine et al.
patent: 6828864 (2004-12-01), Maxim et al.
patent: 6834183 (2004-12-01), Black et al.
patent: 6998923 (2006-02-01), Melanson
patent: 7110486 (2006-09-01), Adachi et al.
patent: 7259633 (2007-08-01), Lee et al.
patent: 7301405 (2007-11-01), Kawabe et al.
patent: 7352249 (2008-04-01), Balboni et al.
patent: 7352250 (2008-04-01), Akamine et al.
patent: 7486118 (2009-02-01), Chen et al.
patent: 7583774 (2009-09-01), Lesso
patent: 7602252 (2009-10-01), Sakai
patent: 7764094 (2010-07-01), Arora
patent: 7772930 (2010-08-01), Gatta
patent: 2006/0056561 (2006-03-01), Zhang
patent: 2007/0085579 (2007-04-01), Wallberg et al.
patent: 2007/0109067 (2007-05-01), O'Sullivan et al.
patent: 2008/0164918 (2008-07-01), Stockstad et al.
patent: 2008/0272811 (2008-11-01), Chen et al.
patent: 2010/0020912 (2010-01-01), Lesso
patent: 2010/0171535 (2010-07-01), Shanan
McMahill, Daniel et al, “Automatic Calibration of Modulated Frequency Synthesizers,”IEEE Transactions on Circuits and Systems II, May 2002.
Shanan, Hyman, et al, “A 2.4GHz 2Mb/s Versatile PLL-Based Transmitter Using Digital Pre-Emphasis and Auto Calibration in 0.18μm CMOS for WPAN,” 2009 IEEE International Solid-State Circuits Conference, Session 24, pp. 420-422.
Analog Devices Inc.
Donovan Lincoln
Houston Adam
Knobbe Martens Olson & Bear LLP
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