US 7,592,878 B2
Method and apparatus for generating oscillating signals
Russell John Fagg, San Diego, Calif. (US); and Charles E. Wheatley, III, Del Mar, Calif. (US)
Assigned to QUALCOMM Incorporated, San Diego, Calif. (US)
Filed on Apr. 05, 2007, as Appl. No. 11/696,875.
Prior Publication US 2008/0246548 A1, Oct. 09, 2008
Int. Cl. H03L 1/00 (2006.01)
U.S. Cl. 331—186  [331/16; 327/337] 20 Claims
OG exemplary drawing
 
1. An apparatus for generating an oscillating signal, comprising:
a first circuit to generate an oscillating signal;
a second circuit to supply a first current to the first circuit; and
a third circuit to supply a second current to the first circuit, wherein the first and second currents are adapted to reduce a time duration for the oscillating signal to reach a defined steady-state condition, wherein the defined steady-state condition is based on an amplitude of the oscillating signal not varying more than 15 percent.