Electrical device, control method, and program
First Claim
Patent Images
1. An electrical device that a user uses in his/her hand comprising:
- an acceleration sensor configured to detect an acceleration;
a timer configured to measure elapsed time;
a calculator configured to calculate an index value regarding movement of the electrical device on the basis of an acceleration detected by the acceleration sensor;
a determiner configured to determine whether the user is holding the electrical device on the basis of change of the index value that is obtained from the index value calculated by the calculator and an amount of time measured by the timer; and
an operation controller configured to cancel a sleep state of the electrical device if the determiner determines that the user is holding the electrical device in his/her hand, and whereinthe determiner determines that the user is not holding the electrical device in his/her hand,if the index value exceeds a first threshold value at a first time point, then decreases to less than the first threshold value and remains without exceeding the first threshold value again while the amount of time after the first time point exceeds a first period, the first period being a predetermined time threshold, andif the index value exceeds a second threshold value greater than the first threshold value without decreasing to less than the first threshold value after the first time point, or if the index value exceeds the second threshold value by the time a second period shorter than the first period has passed after the first time point,the determiner determines that the user is holding the electrical device in his/her hand,if the index value exceeds the first threshold value at the first time point, then decreases to less than the first threshold value and exceeds the first threshold value again and the amount of time from the first time point to a point of exceeding the first threshold value again is within the first period and longer than the second period that is shorter than the first period, andif the index value does not exceed the second threshold value greater than the first threshold value.
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Abstract
An acceleration sensor detects an acceleration. A timer measures elapsed time. A calculation means calculates jerk J of a remote controller on the basis of an acceleration detected by the acceleration sensor. A factor determination means determines whether a user is holding the remote controller in his/her hand on the basis of the change of the jerk J that is obtained from an index value calculated by the calculation means and an amount of time measured by the timer. A sleep control means turns on display of a display if the factor determination means determines that the user is holding the remote controller in his/her hand.
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Citations
12 Claims
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1. An electrical device that a user uses in his/her hand comprising:
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an acceleration sensor configured to detect an acceleration; a timer configured to measure elapsed time; a calculator configured to calculate an index value regarding movement of the electrical device on the basis of an acceleration detected by the acceleration sensor; a determiner configured to determine whether the user is holding the electrical device on the basis of change of the index value that is obtained from the index value calculated by the calculator and an amount of time measured by the timer; and an operation controller configured to cancel a sleep state of the electrical device if the determiner determines that the user is holding the electrical device in his/her hand, and wherein the determiner determines that the user is not holding the electrical device in his/her hand, if the index value exceeds a first threshold value at a first time point, then decreases to less than the first threshold value and remains without exceeding the first threshold value again while the amount of time after the first time point exceeds a first period, the first period being a predetermined time threshold, and if the index value exceeds a second threshold value greater than the first threshold value without decreasing to less than the first threshold value after the first time point, or if the index value exceeds the second threshold value by the time a second period shorter than the first period has passed after the first time point, the determiner determines that the user is holding the electrical device in his/her hand, if the index value exceeds the first threshold value at the first time point, then decreases to less than the first threshold value and exceeds the first threshold value again and the amount of time from the first time point to a point of exceeding the first threshold value again is within the first period and longer than the second period that is shorter than the first period, and if the index value does not exceed the second threshold value greater than the first threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of controlling an electrical device that a user uses in his/her hand, the method comprising:
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a calculation step to calculate an index value regarding movement of the electrical device on the basis of an acceleration detected by an acceleration sensor in the electrical device; a determination step to determine whether the user is holding the electrical device in his/her hand on the basis of change of the index value that is obtained from the index value calculated at the calculation step and an amount of time measured by a timer; and an operation control step to cancel a sleep state of the electrical device if it is determined that the user is holding the electrical device in his/her hand at the determination step, and wherein in the determination step, determines that the user is not holding the electrical device in his/her hand, if the index value exceeds the first threshold value at a first time point, then decreases to less than the first threshold value and remains without exceeding the first threshold value again while the amount of time after the first time point exceeds a first period, the first period being a predetermined time threshold, and if the index value exceeds a second threshold value greater than the first threshold value without decreasing to less than the first threshold value after the first time point, or if the index value exceeds the second threshold value by the time a second period shorter than the first period has passed after the first time point, in the determination step, determines that the user is holding the electrical device in his/her hand, if the index value exceeds the first threshold value at the first time point, then decreases to less than the first threshold value and exceeds the first threshold value again and the amount of time from the first time point to a point of exceeding the first threshold value again is within the first period and longer than the second period that is shorter than the first period, and if the index value does not exceed the second threshold value greater than the first threshold value.
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12. A non-transitory computer-readable medium comprising instructions for execution by a computer to control an electrical device that a user uses in his/her hand to function to:
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calculate an index value regarding movement of the electrical device on the basis of an acceleration detected by an acceleration sensor in the electrical device; determine whether the user is holding the electrical device in his/her hand on the basis of change of the index value that is obtained from the index value that is calculated and an amount of time measured by a timer; and cancel a sleep state of the electrical device if the user is determined to be holding the electrical device in his/her hand, and wherein the user is determined to be not holding the electrical device in his/her hand, if the index value exceeds the first threshold value at a first time point, then decreases to less than the first threshold value and remains without exceeding the first threshold value again while the amount of time after the first time point exceeds a first period, the first period being a predetermined time threshold, and if the index value exceeds a second threshold value greater than the first threshold value without decreasing to less than the first threshold value after the first time point, or if the index value exceeds the second threshold value by the time a second period shorter than the first period has passed after the first time point, the user is determined to be holding the electrical device in his/her hand, if the index value exceeds the first threshold value at the first time point, then decreases to less than the first threshold value and exceeds the first threshold value again and the amount of time from the first time point to a point of exceeding the first threshold value again is within the first period and longer than the second period that is shorter than the first period, and if the index value does not exceed the second threshold value greater than the first threshold value.
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Specification