Oscillators – Solid state active element oscillator – Transistors
Patent
1997-02-19
1999-04-06
Hoang, Huan
Oscillators
Solid state active element oscillator
Transistors
331108R, 331179, H03B 500
Patent
active
058924108
ABSTRACT:
A transmitter VCO (204) includes nodes for receiving a band selector voltage for altering the base-emitter capactance of a transistor to enable the VCO to act as an oscillator in the appropriate band, and for altering the resonator capacitance to change the resonant frequency of the oscillator. The method and apparatus enables oscillation in different frequency bands for dual mode communication devices.
REFERENCES:
patent: 4288875 (1981-09-01), Carter
patent: 4598423 (1986-07-01), Hettiger
patent: 5144264 (1992-09-01), Chong et al.
patent: 5469117 (1995-11-01), Phillipe
patent: 5576667 (1996-11-01), Gonna
Hoang Huan
King John J.
Motorola Inc.
LandOfFree
Method and apparatus for transmitting radio frequency signals does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for transmitting radio frequency signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for transmitting radio frequency signals will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1374836