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1. (WO2013148588) MANAGING POWER CONSUMPTION OF A DEVICE WITH A GYROSCOPE

Pub. No.:    WO/2013/148588    International Application No.:    PCT/US2013/033727
Publication Date: Fri Oct 04 01:59:59 CEST 2013 International Filing Date: Tue Mar 26 00:59:59 CET 2013
IPC: G01C 19/5776
G01C 21/16
G01C 21/20
G06F 3/0346
Applicants: SENSOR PLATFORMS, INC.
Inventors: JOSEPH, Benjamin, E.
CHEN, Ian
MEDUNA, Debbie
Title: MANAGING POWER CONSUMPTION OF A DEVICE WITH A GYROSCOPE
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.