Oscillators – Combined with particular output coupling network – Space discharge or unilaterally conductive device in output...
Reexamination Certificate
2007-01-23
2007-01-23
Shingleton, Michael B. (Department: 2817)
Oscillators
Combined with particular output coupling network
Space discharge or unilaterally conductive device in output...
C331S176000, C331S175000, C331S074000, C331SDIG002
Reexamination Certificate
active
10733094
ABSTRACT:
A variable frequency oscillator having multiple, independent frequency control inputs, each coupled to a respective tuning sub-circuit. The tuning sub-circuits are connected in parallel with each other and with a resonator module, which may be a quartz crystal, inductor, or other reactance component. Each tuning sub-circuit consists of two varactors with their respective cathodes coupled to each other and to their corresponding frequency control input. By having the tuning sub-circuits connected in parallel to the resonator, the overall frequency pull range of each frequency control input remains unaffected by the activation of any other frequency control input. Preferably, at least one frequency control input is a temperature compensation control input that can maintain the variable oscillator insensitive to temperature variations while the remaining frequency control inputs provide functional frequency control.
REFERENCES:
patent: 4316108 (1982-02-01), Rogers, Jr.
patent: 4378534 (1983-03-01), Goedken et al.
patent: 4492933 (1985-01-01), Grieco
patent: 4999589 (1991-03-01), DaSilva
patent: 5097228 (1992-03-01), McJunkin
patent: 5604468 (1997-02-01), Gillig
patent: 5740525 (1998-04-01), Spears
patent: 5977839 (1999-11-01), Tsumura
patent: 6198356 (2001-03-01), Visocchi et al.
patent: 6225871 (2001-05-01), Chien
patent: 6323739 (2001-11-01), Andrews
patent: 2002/0149434 (2002-10-01), Toncich et al.
Haro Rosalio
Shingleton Michael B.
LandOfFree
Temperature compensation for a variable frequency 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 Temperature compensation for a variable frequency oscillator..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature compensation for a variable frequency oscillator... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3811127