Method and system for waking up a device due to motion
DC CAFC
First Claim
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1. A method comprising:
- receiving motion data from a motion sensor in a device, the motion sensor sensing motion along three axes;
verifying whether the motion data includes one or more glitches and removing the one or more glitches from the motion data;
determining an idle sample value for a dominant axis of the device, the dominant axis defined as the axis with a largest effect from gravity among the three axes, the idle sample value comprising an average of accelerations over a sample period along the dominant axis recorded when the device goes to idle mode after a period of inactivity;
registering a motion of the device based on the motion data from the motion sensor;
determining whether the motion caused a change in the dominant axis; and
waking up the device when the motion of the device indicates the change in the dominant axis of the device, the dominant axis being the axis with the largest effect from gravity among the three axes.
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Abstract
A method comprises determining an idle sample value for a dominant axis of a device in an idle state. The method further comprises registering a motion of the device, and evaluating the motion. The method further comprises waking up the device when the analysis of the motion indicates a change in the dominant axis of the device and/or a level of acceleration beyond a threshold.
405 Citations
22 Claims
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1. A method comprising:
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receiving motion data from a motion sensor in a device, the motion sensor sensing motion along three axes; verifying whether the motion data includes one or more glitches and removing the one or more glitches from the motion data; determining an idle sample value for a dominant axis of the device, the dominant axis defined as the axis with a largest effect from gravity among the three axes, the idle sample value comprising an average of accelerations over a sample period along the dominant axis recorded when the device goes to idle mode after a period of inactivity; registering a motion of the device based on the motion data from the motion sensor; determining whether the motion caused a change in the dominant axis; and waking up the device when the motion of the device indicates the change in the dominant axis of the device, the dominant axis being the axis with the largest effect from gravity among the three axes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A mobile device comprising:
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a motion sensor to sense motion along three axes and generate motion data; a glitch corrector to determine whether the motion data includes one or more glitches and removing the one or more glitches from the motion data; a dominant axis logic to determine an idle sample value for a dominant axis of the mobile device based on the motion data, the dominant axis defined as an axis with a largest effect from gravity among three axes, and the idle sample value comprising an average of accelerations over a sample period along the dominant axis recorded when the device goes to idle mode after a period of inactivity; a computation logic to determine whether the motion caused a change in the dominant axis; and a power logic to wake up the device when the motion of the device indicates a change in the dominant axis of the device, the dominant axis being the axis with the largest effect from gravity among the three axes. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A system to wake up a mobile device comprising:
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a motion sensor to detect motion along three axes and generation motion data; a glitch corrector to determine whether the motion data includes one or more glitches and remove the one or more glitches from the motion data; a dominant axis logic to determine an idle sample value, comprising an average of accelerations over a sample period along a dominant axis, the dominant axis defined as an axis with a largest effect of gravity among the three axes; and a power logic to move the device from the inactive state to an active state upon detection of a change in the dominant axis which is the axis experiencing the largest effect of gravity. - View Dependent Claims (21, 22)
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Specification
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Litigation Data
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Current AssigneeUniloc Luxembourg S.à r.l. (f/k/a Uniloc Luxembourg S.A.) (Uniloc Corporation Pty. Limited)
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Original AssigneeDP Technologies, Inc.
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InventorsKahn, Philippe, Kinsolving, Arthur, Vogel, David, Christensen, Mark Andrew
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Primary Examiner(s)Lu, Shirley
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Application NumberUS12/247,950Publication NumberTime in Patent Office2,211 DaysField of Search340/669, 340/457, 340/573.1, 340/686.1, 340/539.1, 340/522, 340/667, 702/141, 345/325, 345/156US Class Current340/457CPC Class CodesG01P 13/00 Indicating or recording pre...G06F 1/3203 Power management, i.e. even...G06F 1/3231 Monitoring the presence, ab...Y02D 10/00 Energy efficient computing,...
