Summing circuit for a filter

Miscellaneous active electrical nonlinear devices – circuits – and – Specific input to output function – Combining of plural signals

Reexamination Certificate

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Details

C327S552000, C327S561000, C330S069000, C330S252000, C708S670000

Reexamination Certificate

active

08085079

ABSTRACT:
According to one embodiment of the invention, a summing circuit comprises a first transmitter, a second transmitter, a first current offset circuit and a first transconductance amplifier. The first current offset circuit is coupled to the emitters of the first and second transistors. The first transconductance amplifier is coupled to the first current offset circuit.

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United States Office Action dated Apr. 8, 2010 for U.S. Appl. No. 12/119,394, filed May 12, 2008 entitled Analog Finite Impulse Response Filter.

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