Battery status indicator compensating for battery voltage...

Electricity: power supply or regulation systems – Input level responsive

Reexamination Certificate

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C320SDIG011

Reexamination Certificate

active

11072905

ABSTRACT:
A method for determining a recovery voltage in a battery includes detecting a transient increased current draw event drawing current from the battery, the transient increased current draw event starting at a start time and ending at an end time; and in response to detecting the transient increased current draw event, waiting until time and/or voltage criteria are met to determine recovered battery voltage. An implantable pulse generator (PG) device for stimulating a human organ includes a battery, a power sink drawing current from the battery, wherein drawing increased current from the battery for transient periods causes battery voltage to decrease; and a status indicator detecting a transient increased current draw event and waiting a minimum time duration after the transient increased current draw event to measure battery voltage in order to determine a recovery voltage.

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Guidant Corporation, Diagnostic Evaluation, pp. 6-5 to 6-18; Jul. 2004; www.guidant.com.
Guidant Corporation, Diagnostic Evaluation, pp. 6-6 to 6-18, Mar. 2004; www.guidant.com.

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