Oscillators – With distributed parameter resonator – Parallel wire type
Reexamination Certificate
2005-02-08
2005-02-08
Callahan, Timothy P. (Department: 2816)
Oscillators
With distributed parameter resonator
Parallel wire type
C331S044000
Reexamination Certificate
active
06853261
ABSTRACT:
A method and apparatus for calibrating a voltage-controlled device in a control loop is disclosed. The method and apparatus of the present invention maintains a control voltage of a voltage-controlled device within a high tuning sensitivity range, and thus improves the performance of the voltage-controlled device. The present inventive method and apparatus features a voltage windowing method wherein a high tuning sensitivity window is a subset of the low tuning sensitivity window. In one embodiment, the present invention maintains a control voltage within a predetermined tuning sensitivity window or range. In another embodiment, the present inventive method and apparatus calibrates a PLL that includes multiple VCOs. In yet another embodiment, the present invention calibrates control voltages to account for changes in operating temperature.
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Callahan Timothy P.
Cox Cassandra
RFMD WPAN, Inc.
Withrow & Terranova , PLLC
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