Voltage controlled oscillator

Details Voltage controlled oscillator Voltage controlled oscillator

2006-09-25

2010-12-07

Kinkead, Arnold (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Tuning compensation

C331S185000, C331S175000, C331S034000, C331S183000

Reexamination Certificate

active

07847640

ABSTRACT:
A voltage controlled oscillator controls an oscillation frequency based on a control voltage supplied from an external control voltage terminal. The voltage controlled oscillator includes a reference bias voltage circuit and a gain adjustment circuit. The reference bias voltage circuit includes multiple serial resistances between a reference voltage and a ground. The reference bias voltage circuit controls a switch coupled in parallel to at least one of the serial resistances and thus changes a voltage dividing ratio of the serial resistances so as to set a reference bias voltage. The gain adjustment circuit adjusts a gain of the control voltage. The gain adjustment circuit includes multiple resistances and multiple switching elements. The gain adjustment circuit controls the switching elements to form a voltage dividing circuit between the reference bias voltage and the external control voltage terminal so as to generate an automatic frequency control voltage.

REFERENCES:
patent: 5319345 (1994-06-01), Abe et al.
patent: 7230505 (2007-06-01), Rachedine et al.
patent: 49-131615 (1974-12-01), None
patent: 49-131615 (1974-12-01), None
patent: 01-225210 (1989-09-01), None
patent: 05-110370 (1993-04-01), None
patent: 05-129957 (1993-05-01), None
patent: 05-129957 (1993-05-01), None
patent: 2002-076773 (2002-03-01), None
patent: 2005-303388 (2005-10-01), None
patent: 2006-033092 (2006-02-01), None
patent: 2006-086679 (2006-03-01), None
International Search Report for PCT/JP2006/319631, mailed Jan. 9, 2007; ISA/JPO (in English).

Affiliated with

Also associated with

Rating

Voltage controlled oscillator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Voltage controlled oscillator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage controlled oscillator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4155139