Miscellaneous active electrical nonlinear devices – circuits – and – Gating – Signal transmission integrity or spurious noise override
Reexamination Certificate
2006-06-20
2006-06-20
Lam, Tuan T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Gating
Signal transmission integrity or spurious noise override
C327S391000, C326S113000
Reexamination Certificate
active
07064599
ABSTRACT:
A signal transmission gate includes a switch such as a transistor. The switch includes a gate terminal adapted to receive a control voltage, and a source terminal and a drain terminal. One of the source and drain terminals is adapted to receive an input signal, and the output signal is provided on the other terminal. A constant-voltage boosting circuit generates the control voltage such that it has a substantially constant value above a voltage of the input signal. In one embodiment, the constant-voltage boosting circuit is coupled between the gate terminal and the terminal that receives the input voltage, and generates a substantially constant voltage difference. In one implementation, a component is employed that exhibits a characteristic voltage behavior, such as a diode, for generating the substantially constant voltage difference.
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Taft Robert Callaghan
Tursi Maria Rosaria
Darby & Darby PC
Gaffney Matthew M.
Lam Tuan T.
National Semiconductor Corporation
Nguyen Hiep
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