Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Reexamination Certificate
2006-05-30
2006-05-30
Callahan, Timothy P. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
C327S063000
Reexamination Certificate
active
07053670
ABSTRACT:
Disclosed herewith is a semiconductor integrated circuit provided with a differential input circuit that can transmit data signals fast to an internal circuit free from distortion of their waveforms without increasing the subject chip in size. The differential input circuit is provided with a pair of first differential input transistors used to amplify mainly the low frequency components of those input signals and having gate terminals connected to a pair of input terminals that receive inputs of differential signals respectively, as well as a pair of second differential input transistors used mainly to amplify high frequency components of those input signals and having control terminals connected to a pair of input terminals that receive inputs of differential signals respectively through capacitance elements. The pairs of first and second differential transistors are connected to each other through a differential connection point (common source).
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Muto Takashi
Takahashi Toshiro
A. Marquez, Esq. Juan Carlos
Callahan Timothy P.
Cox Cassandra
Fisher Esq. Stanley P.
Hitachi , Ltd.
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