Voltage controlled oscillator with compensation for power...

Details Voltage controlled oscillator with compensation for power... Voltage controlled oscillator with compensation for power...

2007-06-11

2009-06-30

Tran, Anh Q (Department: 2819)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Tuning compensation

C331S017000, C331S17700V, C331S057000

Reexamination Certificate

active

07554413

ABSTRACT:
A voltage-controlled oscillator (VCO) according to an aspect of the present invention includes an oscillation unit and a delay time control unit. The oscillation unit generates an oscillation signal with a frequency determined by a VCO control signal. The delay time control unit adjusts a delay of the oscillation signal in response to a change of a power supply voltage. Such a VCO is advantageously used for minimizing signal skew in a phase-locked loop (PLL).

REFERENCES:
patent: 5428310 (1995-06-01), Casper et al.
patent: 5708396 (1998-01-01), Mizuno
patent: 6781425 (2004-08-01), Si
Japanese Patent Application No. 05-162938 to Hidekazu, having Publication data of Mar. 17, 1995 (w/ English Abstract page).
Japanese Patent Application No. 05-322755 to Susumu, having Publication date of Jul. 14, 1995 (w/ English Abstract page).
Japanese Patent Application No. 06-055706 to Masanobu, having Publication date of Oct. 13, 1995 (w/ English Abstract page).

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