Oscillators – Solid state active element oscillator – Transistors
Reexamination Certificate
2005-08-02
2005-08-02
Mis, David (Department: 2817)
Oscillators
Solid state active element oscillator
Transistors
C331S109000, C331S1170FE, C331S173000, C331S183000
Reexamination Certificate
active
06924708
ABSTRACT:
An oscillator circuit having an expanded operating range includes an amplifier portion amplifying an oscillating signal. A gain controlling portion controls the gain of the amplified oscillating signal. A switching circuit electrically connected across the gain controlling portion provides a low impedance electrical path in parallel with the gain controlling portion in response to a switch input signal. The switching circuit further includes a switch signal generator portion producing the switch input signal to switch the switching circuit ON or OFF when power supplied to the oscillator circuit reaches a first predetermined voltage level and to switch the switching circuit OFF or ON when power supplied to the oscillator circuit reaches a second predetermined voltage level. In this circuit design, the initiation of an oscillating signal by the oscillator circuit is unaffected by supply voltage variation or, in other words, fluctuation in the power supplied to the oscillator circuit.
REFERENCES:
patent: 4282496 (1981-08-01), Heuner
patent: 4387350 (1983-06-01), Bessolo et al.
patent: 4445064 (1984-04-01), Bullis
patent: 4613829 (1986-09-01), Ott
patent: 4896122 (1990-01-01), Tahernia et al.
patent: 4956618 (1990-09-01), Ulmer
patent: 5184094 (1993-02-01), Kohler
patent: 5486795 (1996-01-01), Spence et al.
patent: 5534826 (1996-07-01), Logan
patent: 5548252 (1996-08-01), Watanabe et al.
patent: 5719534 (1998-02-01), Imura
patent: 5770980 (1998-06-01), Barrett, Jr. et al.
patent: 5894248 (1999-04-01), Bedard
patent: 5920236 (1999-07-01), Ishizaki
patent: 5923222 (1999-07-01), Russell et al.
patent: 6025757 (2000-02-01), Tsukagoshi et al.
patent: 6169462 (2001-01-01), White
patent: 6340920 (2002-01-01), Tseng
Kuo Yao H.
Porambo Sylvester P.
Confer Scott M.
Mis David
Visteon Global Technologies Inc.
LandOfFree
Oscillator circuit having an expanded operating range does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Oscillator circuit having an expanded operating range, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oscillator circuit having an expanded operating range will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3523140