Self-calibrated wide range LC tank voltage-controlled...

Details Self-calibrated wide range LC tank voltage-controlled... Self-calibrated wide range LC tank voltage-controlled...

2011-05-10

2011-05-10

Gannon, Levi (Department: 2817)

Oscillators

With frequency adjusting means

Step-frequency change

C331S03600C, C331S044000, C331S049000, C331S167000, C331S186000

Reexamination Certificate

active

07940140

ABSTRACT:
The present invention is a self-calibrating, dual-band, wide range LC tank Voltage Controlled Oscillator (VCO) system. The system may include a first Voltage-Controlled Oscillator (VCO) and a second Voltage-Controlled Oscillator (VCO). The system may further include a calibration engine. The calibration engine may be configured for being connectable to at least one of the first VCO or the second VCO. The calibration engine may further be configured for automatically establishing/providing a VCO fix capacitor band code setting and a gear control setting for selectively activating or inactivating the first VCO and/or the second VCO. The calibration engine may be further configured for automatically comparing a VCO control voltage of the system to an allowable control voltage range for the system and may be further configured for automatically adjusting the VCO fix capacitor band code setting and/or the gear control setting when the VCO control voltage falls outside of the allowable control voltage range.

REFERENCES:
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patent: 7474358 (2009-01-01), Miyamoto
patent: 7519140 (2009-04-01), Yoshimura
patent: 7663446 (2010-02-01), Surin

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