Managing Power Consumption of a Device with a Gyroscope
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United States of America Patent
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Issued Date -
Sep 26, 2013
app pub date -
Mar 22, 2013
filing date -
Mar 25, 2012
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Abstract
A processing apparatus having one or more processors and memory generates navigational state estimates for a device having a gyroscope. The processing apparatus has a gyroscope-assisted mode of operation in which measurements from the gyroscope are used to estimate the navigational states and an alternate mode of operation in which measurements from other sensors are used to estimate the navigational state of the device. For a first time period and a subsequent transition time period, the processing apparatus estimates the navigational state of the device without sensor measurements from the gyroscope. At an end of the transition time period, the processing apparatus starts to use measurements from the gyroscope to estimate the navigational state of the device. For a second time period, after the transition time period, the processing apparatus estimates the navigational state of the device using sensor measurements from the gyroscope.
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