Motion detection for A/V recording and communication devices
First Claim
Patent Images
1. A method for an audio/video (A/V) recording and communication device, the A/V recording and communication device including at least a first motion sensor and a second motion sensor, the method comprising:
- generating, by the first motion sensor, a first output signal based at least in part on detecting an object within a field of view of the A/V recording and communication device;
generating, by the second motion sensor, a second output signal based at least in part on detecting the object within the field of view of the A/V recording and communication device;
calculating a first time coordinate for a maximum of the first output signal;
calculating a second time coordinate for a maximum of the second output signal;
calculating a spacing between the first time coordinate and the second time coordinate;
comparing the spacing to a threshold value; and
upon determining that the spacing is less than the threshold value, performing at least one of (i) filtering out the first output signal and the second output signal or (ii) 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.
126 Citations
16 Claims
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1. A method for an audio/video (A/V) recording and communication device, the A/V recording and communication device including at least a first motion sensor and a second motion sensor, the method comprising:
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generating, by the first motion sensor, a first output signal based at least in part on detecting an object within a field of view of the A/V recording and communication device; generating, by the second motion sensor, a second output signal based at least in part on detecting the object within the field of view of the A/V recording and communication device; calculating a first time coordinate for a maximum of the first output signal; calculating a second time coordinate for a maximum of the second output signal; calculating a spacing between the first time coordinate and the second time coordinate; comparing the spacing to a threshold value; and upon determining that the spacing is less than the threshold value, performing at least one of (i) filtering out the first output signal and the second output signal or (ii) 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 first motion sensor; a second motion sensor; and memory storing instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising; receiving, from the first motion sensor, a first output signal based at least in part on the first motion sensor detecting an object in a field of view of the A/V recording and communication device; receiving, from the second motion sensor, a second output signal based at least in part on the second motion sensor detecting the object in the field of view of the A/V recording and communication device; calculating a first time coordinate for a maximum of the first output signal; calculating a second time coordinate for a maximum of the second output signal; calculating a time difference between the first time coordinate and the second time coordinate; determining that the time difference is less than a threshold time difference; and based at least in part on the time difference being less than the threshold time difference, performing at least one of (i) filtering out the first output signal and the second output signal or (ii) refraining from generating an alert signal. - 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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one or more processors; a first motion sensor; a second motion sensor; and memory storing instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising; receiving, from the first motion sensor, a first output signal based at least in part on the first motion sensor detecting an object in a field of view of the A/V recording and communication device; receiving, from the second motion sensor, a second output signal based at least in part on the second motion sensor detecting the object in the field of view of the A/V recording and communication device; calculating a first time coordinate for a maximum of the first output signal; calculating a second time coordinate for a maximum of the second output signal; calculating a first spacing between the first time coordinate and the second time coordinate; comparing the first spacing to a first threshold value; calculating a third time coordinate for a minimum of the first output signal; calculating a fourth time coordinate for a minimum of the second output signal; calculating a second spacing between the third time coordinate and the fourth time coordinate; comparing the second spacing to a second threshold value; and upon determining that at least one of the first spacing is less than the first threshold value or the second spacing is less than the second threshold value, performing at least one of (i) filtering out the first output signal and the second output signal or (ii) refraining from generating an alert signal. - View Dependent Claims (13, 14, 15, 16)
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Specification