Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Amplitude control
Reexamination Certificate
2011-08-16
2011-08-16
Le, Dinh T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Amplitude control
C326S080000
Reexamination Certificate
active
07999595
ABSTRACT:
A circuit includes a differential circuit having at least to two inputs, a first variable impedance circuit, and a second variable impedance circuit. The first variable impedance circuit is between a first branch of the differential circuit and an output. The first variable impedance circuit provides a first variable impedance. The a second variable impedance circuit is between a second branch of the differential circuit and the output. The second variable impedance circuit provides a second variable impedance. The first variable impedance and the second variable impedance vary in accordance with a voltage difference between the two inputs.
REFERENCES:
patent: 6046875 (2000-04-01), Siniscalchi et al.
patent: 6529075 (2003-03-01), Bruck et al.
patent: 6583652 (2003-06-01), Klein et al.
Bomdica Arvind
Lee Ming-Ju
Namkoong Jinyung
Advanced Micro Devices , Inc.
Le Dinh T.
Vedder Price P.C.
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