Electricity: measuring and testing – Electrolyte properties – Using a battery testing device
Reexamination Certificate
2007-03-27
2007-03-27
Tibbits, Pia (Department: 2838)
Electricity: measuring and testing
Electrolyte properties
Using a battery testing device
Reexamination Certificate
active
10831631
ABSTRACT:
A circuit for monitoring charge/discharge of a battery is disclosed. The circuit may comprise first and second terminal capacitors disposed for first and second terminals of a current detection resistor connected to a battery. The first and second terminal capacitors may develop an integrated voltage responsive to the charge/discharge current obtained from the individual terminals. The circuit may also include at least one comparator for comparing the individual integrated voltages developed by the first and second terminal capacitors with a reference voltage, the comparator having respective outputs which change when the individual integrated voltages reach the reference voltage. A terminal-by-terminal output change count difference output unit may count the number of times the output of the comparator changes and may output the difference between the number of times of change corresponding to the first terminal and the number of times of change corresponding to the second terminal.
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Sanyo Electric Co. Ltd
Sereboff Steven C.
SoCal IP Law Group LLP
Tibbits Pia
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