Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – For fault location
Reexamination Certificate
2007-02-20
2007-02-20
Deb, Anjan (Department: 2858)
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
For fault location
C324S102000, C324S613000
Reexamination Certificate
active
11296709
ABSTRACT:
A device for sensing and capturing the state of a direct current electrical power line comprising a voltage comparator having a pair of inputs, one of the inputs adapted to be connected to the power line, the other input connected to an analog and digital I/O module for supplying a threshold voltage to the voltage comparator, a plurality of latches, an equal plurality of integrators having different time constants, each integrator connected between the output of the voltage comparator and one of the plurality of latches for supplying an integrated replica of the output from the comparator to the latch, the analog and digital I/O module also being connected to the plurality of latches for reading the states of the respective latches and for resetting any set latch, and a programmed computer connected to the analog and digital I/O module for controlling the operation of the analog and digital module and for logging the occurrence of the setting of a latch.
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Deb Anjan
Klein Alan P.
The Untied States of America as represented by the Secretary of
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