Mobile device hold state change detection apparatus
First Claim
1. A hold state change detection apparatus comprising:
- an acquiring section that acquires output signals of a plurality of sensors including at least a first sensor and a second sensor mounted in a mobile device held by a user;
a change detecting section that detects a change in a hold state of the mobile device in response to a characteristic of a pattern of one of the output signals changing to a different characteristic;
a hold state judging section that judges the hold state based on the output signals of the plurality of sensors; and
a hold state estimating section that references a judgment result of the hold state judging section at a plurality of times and detection results of the change detecting section, and estimates the hold state of the mobile device of the user, whereinthe change detecting section performs the detection in a time that is shorter than an interval Δ
t during which the hold state judging section judges the hold state,the hold state estimating section sequentially receives the detection results of the change detecting section and, for each judgment result of the hold state judging section, if a change in the hold state has been detected during the judgment interval Δ
t, the hold state estimating section does not output the judgment result received from the hold state judging section, but outputs the hold state prior to the detection of the change in the hold state, and if a change in the hold state has not been detected during the judgment interval Δ
t, the hold state estimating section outputs the judgment result received from the hold state judging section as an estimation result of the hold state.
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Abstract
In order to accurately identify a hold state of a mobile device held by a user while the user is moving, provided is a hold state change detection apparatus including an acquiring section that acquires an output signal of a sensor mounted in the mobile device held by the user; a change detecting section that detects a change in a hold state of the mobile device based on the output signal of the sensor; and a hold state judging section that judges the hold state based on the output signal of the sensor. During a prescribed time from the time when the change detecting section detects the change in the hold state, information indicating the hold state prior to the detection of the change in the hold state is output. Also provided is a hold state change detection method and program.
58 Citations
31 Claims
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1. A hold state change detection apparatus comprising:
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an acquiring section that acquires output signals of a plurality of sensors including at least a first sensor and a second sensor mounted in a mobile device held by a user; a change detecting section that detects a change in a hold state of the mobile device in response to a characteristic of a pattern of one of the output signals changing to a different characteristic; a hold state judging section that judges the hold state based on the output signals of the plurality of sensors; and a hold state estimating section that references a judgment result of the hold state judging section at a plurality of times and detection results of the change detecting section, and estimates the hold state of the mobile device of the user, wherein the change detecting section performs the detection in a time that is shorter than an interval Δ
t during which the hold state judging section judges the hold state,the hold state estimating section sequentially receives the detection results of the change detecting section and, for each judgment result of the hold state judging section, if a change in the hold state has been detected during the judgment interval Δ
t, the hold state estimating section does not output the judgment result received from the hold state judging section, but outputs the hold state prior to the detection of the change in the hold state, and if a change in the hold state has not been detected during the judgment interval Δ
t, the hold state estimating section outputs the judgment result received from the hold state judging section as an estimation result of the hold state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification