Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2005-12-19
2008-03-18
Choe, Henry (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S289000
Reexamination Certificate
active
07345542
ABSTRACT:
A signal processing circuit includes a circuit stage for operating on signals in a signal path of an input signal, including main circuitry for operating on relatively small-value signals and alternative circuitry for amplifying/processing signals during a condition which otherwise would cause thermal imbalance in the main circuitry. The circuit stage includes switching circuitry for coupling signals in the signal path of the input signal to the main input circuitry during normal small-signal operating conditions and for coupling signals in the signal path of the input signal to the alternative circuitry during the condition which otherwise would cause thermal imbalance in the main circuitry.
REFERENCES:
patent: 4528516 (1985-07-01), Hill, III
patent: 5247210 (1993-09-01), Swanson
patent: 6317001 (2001-11-01), Roth
patent: 6967526 (2005-11-01), Churchill
Dashtestani Ahmad
Halbert Joel M.
Brady III Wade J.
Choe Henry
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
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