Low Power Sensor System
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United States of America Patent
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N/A
Issued Date -
Jul 29, 2010
app pub date -
Jan 28, 2009
filing date -
Jan 28, 2009
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A sensor for a vehicle that conserves power by alternately switching between a power on and a reduced power state. The circuit compares a most recent sensor measurement with an earlier measurement while in the power-on state and then switches to a reduced power state. A time delay generation function determines when the circuit switches out of the reduced power state depending on the result of the comparison. The duration of the reduced power state can be increased depending on the similarity of the most recent measurement to an earlier measurement.
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