Motion detection for A/V recording and communication devices
First Claim
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1. A method for an audio/video (A/V) recording and communication device, including a motion sensor, the method comprising:
- gathering, by the motion sensor, information within a field of view of the A/V recording and communication device and generating an output signal;
sampling the output signal from the motion sensor during a first sampling interval;
calculating a first magnitude of the output signal during the first sampling interval;
sampling the output signal from the motion sensor during a second sampling interval;
calculating a second magnitude of the output signal during the second sampling interval;
calculating a difference between the first magnitude and the second magnitude;
comparing the difference between the first magnitude and the second magnitude to a threshold value; and
upon determining that the difference between the first magnitude and the second magnitude is greater than the threshold value, refraining from generating an alert signal.
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Abstract
Audio/video (A/V) recording and communication devices according to the present embodiments comprise a processor, a motion sensor, and a camera. In various embodiments, the A/V recording and communication devices are configured to reduce latency and/or to reduce false positive indications of motion.
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Citations
15 Claims
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1. A method for an audio/video (A/V) recording and communication device, including a motion sensor, the method comprising:
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gathering, by the motion sensor, information within a field of view of the A/V recording and communication device and generating an output signal; sampling the output signal from the motion sensor during a first sampling interval; calculating a first magnitude of the output signal during the first sampling interval; sampling the output signal from the motion sensor during a second sampling interval; calculating a second magnitude of the output signal during the second sampling interval; calculating a difference between the first magnitude and the second magnitude; comparing the difference between the first magnitude and the second magnitude to a threshold value; and upon determining that the difference between the first magnitude and the second magnitude is greater than the threshold value, refraining from generating an alert signal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An audio/video (A/V) recording and communication device, comprising:
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one or more processors; a motion sensor configured to gather information from within a field of view of the A/V recording and communication device and to generate an output signal based at least in part on the gathered information; and memory storing instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising; sampling the output signal from the motion sensor during a first sampling interval; calculating a first magnitude of the output signal during the first sampling interval; sampling the output signal from the motion sensor during a second sampling interval; calculating a second magnitude of the output signal during the second sampling interval; calculating a difference between the first magnitude and the second magnitude; comparing the difference between the first magnitude and the second magnitude to a threshold value; and suppressing transmission of an alert signal when the difference between the first magnitude and the second magnitude is greater than the threshold value. - View Dependent Claims (8, 9, 10, 11)
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12. An audio/video (A/V) recording and communication device, comprising:
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a motion sensor configured to generate an output signal based at least in part on gathering information in a field of view of the A/V recording and communication device; and one or more processors configure to; determine a peak magnitude of the output signal; compare the peak magnitude of the output signal to a threshold value; and upon determining that the peak magnitude of the output signal is greater than the threshold value, refrain from transmitting an alert signal. - View Dependent Claims (13, 14, 15)
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Specification