System and method for controlling an electronic device by human tremor detection
First Claim
1. A method for controlling an electronic device including an accelerometer, a proximity sensor, and circuitry, the method comprising:
- detecting with the proximity sensor whether the electronic device is physically enclosed in a small space;
detecting whether the electronic device is vibrating at a rate indicative of natural tremors of a human body comprising;
receiving with the circuitry an electronic signal from the accelerometer indicative of movement of the electronic device;
for each set of samples of a plurality of sets of samples of the signal,determining with the circuitry a value of a magnitude of the set of samples for a first range of frequencies indicative of natural tremors of a human body;
determining with the circuitry a value of a magnitude of the set of samples for a second range of frequencies higher than the first range; and
producing an output with the circuitry indicating detection when the difference between the value of the magnitude of the first range of frequencies and the value of the magnitude of second range of frequencies is greater than a threshold value; and
producing an output with the circuitry indicating that the electronic device is vibrating at a rate indicative of natural tremors of a human body when a threshold number of sets of samples within a predetermined time period produce an output indicating detection; and
operating with the circuitry the electronic device in response to whether the electronic device is vibrating at a rate indicative of natural tremors of a human body while the electronic device is not physically enclosed in a small space.
3 Assignments
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Accused Products
Abstract
An electronic device is operated based on whether it detects vibration indicative of natural human tremors while the device is not enclosed in a small space. Human tremors are detected by sampling a motion signal and performing a discrete Fourier transformation on a plurality of sets of samples. For each sample, a mean magnitude is calculated for a first range of frequencies indicative of human tremors. A mean magnitude is also calculated for a second range of frequencies greater than the first range. If the difference between the mean magnitude of the first range and the mean magnitude of the second range, then human tremors are detected for the set of samples. Human tremors are detected for the device if a threshold number of sets of samples within a predetermined time period produce an output indicating detection.
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Citations
18 Claims
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1. A method for controlling an electronic device including an accelerometer, a proximity sensor, and circuitry, the method comprising:
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detecting with the proximity sensor whether the electronic device is physically enclosed in a small space; detecting whether the electronic device is vibrating at a rate indicative of natural tremors of a human body comprising; receiving with the circuitry an electronic signal from the accelerometer indicative of movement of the electronic device; for each set of samples of a plurality of sets of samples of the signal, determining with the circuitry a value of a magnitude of the set of samples for a first range of frequencies indicative of natural tremors of a human body; determining with the circuitry a value of a magnitude of the set of samples for a second range of frequencies higher than the first range; and producing an output with the circuitry indicating detection when the difference between the value of the magnitude of the first range of frequencies and the value of the magnitude of second range of frequencies is greater than a threshold value; and producing an output with the circuitry indicating that the electronic device is vibrating at a rate indicative of natural tremors of a human body when a threshold number of sets of samples within a predetermined time period produce an output indicating detection; and operating with the circuitry the electronic device in response to whether the electronic device is vibrating at a rate indicative of natural tremors of a human body while the electronic device is not physically enclosed in a small space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An electronic device comprising:
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an accelerometer; a proximity sensor; and circuitry adapted to; receive an electronic signal from the accelerometer; for each set of samples of a plurality of sets of samples of the signal, determine a value of a magnitude of the set of samples for a first range of frequencies indicative of natural tremors of a human body; determine a value of a magnitude of the set of samples for a second range of frequencies higher than the first range; and produce an output indicating detection when the difference between the value of the magnitude of the first range of frequencies and the value of the magnitude of second range of frequencies is greater than a threshold value; produce an output indicating that the electronic device is vibrating at a rate indicative of natural tremors of a human body when a threshold number of sets of samples within a predetermined time period produce an output indicating detection; and operate the electronic device in response to whether the accelerometer detects vibration at a rate indicative of natural tremors of a human body while the proximity detector does not detect that the electronic device is physically enclosed in a small space. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for controlling an electronic device including an accelerometer and circuitry, the method comprising:
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receiving with the circuitry an electronic signal from the accelerometer indicative of movement of the electronic device; for each set of samples of a plurality of sets of samples of the signal, determining with the circuitry a value of a magnitude of the signal for a first range of frequencies indicative of natural tremors of a human body; determining with the circuitry a value of a magnitude of the signal for a second range of frequencies higher than the first range; and producing an output with the circuitry indicating detection when the difference between the value of the magnitude of the first range of frequencies and the value of the magnitude of second range of frequencies is greater than a threshold value; and operating with the circuitry the electronic device in response to whether a threshold number of sets of samples within a predetermined time period produce an output indicating detection. - View Dependent Claims (18)
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Specification