Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Nonlinear amplifying circuit
Patent
1997-02-14
1999-06-08
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
Nonlinear amplifying circuit
327512, 327513, 330289, H03G 522, H03F 130
Patent
active
059107510
ABSTRACT:
A circuit arrangement and method vary in response to temperature changes the signal swing of an input signal to an analog circuit which has a temperature-dependent effective linear signal range. A variable gain circuit varies the signal swing of the input signal in response to a control signal supplied thereto by a temperature control circuit so that the signal swing tracks changes in the effective linear signal range of the analog circuit. In this manner, signal to noise ratio may be optimized and distortion may be minimized over a range of operating temperatures for the analog circuit.
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Richetta Raymond Alan
Winn Gregory Scott
Callahan Timothy P.
International Business Machines - Corporation
Luu An T.
Nasiedlak Tyler L.
Stinebruner Scott A.
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