Real-time frequency band selection circuit for use with a...

Details Real-time frequency band selection circuit for use with a... Real-time frequency band selection circuit for use with a...

2007-01-02

2008-12-30

Mis, David (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Particular error voltage control

C331S00100A, C331S008000, C331S17700V, C331S179000

Reexamination Certificate

active

07471160

ABSTRACT:
An integrated circuit including a phase-locked loop (PLL) circuit responsive to a voltage controlled oscillator (VCO) frequency band selection circuit that provides automatic frequency band selection in real time to account for run-time variations, such as power supply and temperature variations over time. The PLL includes a charge pump and an LC tank circuit that provides the automatic frequency band selection based on a VCO control voltage signal supplied by the charge pump.

REFERENCES:
patent: 4206420 (1980-06-01), Querry et al.
patent: 5648744 (1997-07-01), Prakash et al.
patent: 6072372 (2000-06-01), Yokoyama
patent: 6091304 (2000-07-01), Harrer
patent: 6229399 (2001-05-01), Tobise et al.
patent: 6259327 (2001-07-01), Balistreri et al.
patent: 6686804 (2004-02-01), Adams et al.
patent: 6753738 (2004-06-01), Baird
patent: 6806786 (2004-10-01), Lam et al.
patent: 2002/0033741 (2002-03-01), Craninckx et al.
patent: 2003/0050029 (2003-03-01), Kaufmann et al.
patent: 2005/0237117 (2005-10-01), Vu et al.
patent: 2007/0268084 (2007-11-01), Niwa
patent: 1060572 (2006-01-01), None
Dawn Wang, Xudong Wang, Aria Eshraghi, Danny Chang and Peter Bacon, “A Fully Integrated GSM/DCS/PCS Rx VCO with Fast Switching Auto-Band Selection,” Radio and Wireless Conference, 2002, RAWCON 2002, IEEE Aug. 11-14, 2002, pp. 209-212.
T.-H. Lin and Y.-J. Lai, “Time-Based Frequency Band Selection Method for Phase-Locked Loops,” Electronics Letters, vol. 41, Issue 23, Nov. 10, 2005; pp. 1279-1281.

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