Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2006-03-14
2008-07-22
Pascal, Robert J. (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
Reexamination Certificate
active
07403071
ABSTRACT:
An amplifier, tuner, and method of amplification are provided. The amplifier has a pair of transistors. Each transistor has a control terminal and an output terminal disposed between the transistor and a power supply input. A first network is connected between each power supply input and output terminal. The first network contains a first resistor and a first switch connected in parallel with the first resistor. A second network is connected between the transistors. The second network contains a first and second combination. Each of the first and second combinations contains a second resistor and a second switch connected in parallel with the second resistor. The first and second combinations are connected by a third switch.
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U.S. Appl. No. 11/329,752 entitled “Amplifier With Improved Noise Performance And Extended Gain Control Range”, filed Jan. 10, 2006.
Connell Lawrence E.
Hollenbeck Neal W.
McCarthy Daniel P.
Brinks Hofer Gilson & Lione
Pascal Robert J.
Wong Alan
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