Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Reexamination Certificate
2010-03-23
2011-10-18
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
Reexamination Certificate
active
08040159
ABSTRACT:
In one example, a comparator circuit includes a differential stage adapted to receive a differential input signal. The comparator circuit includes first and second diodes coupled to the differential stage. The first and second diodes are adapted to selectively switch on and off to provide a differential output signal at first and second differential output nodes in response to the differential input signal. The comparator circuit includes a current steering circuit adapted to selectively provide a reference current from a current source to the first or second diode in an off state to reduce a voltage swing of the first or second diode between the off state and an on state. The comparator circuit includes an output stage coupled to the first and second diodes at the first and second differential output nodes. The output stage is adapted to convert the differential output signal to a single ended output signal.
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Donovan Lincoln
Haynes and Boone LLP
Hernandez William
Lattice Semiconductor Corporation
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