Motion detection for A/V recording and communication devices

Patent metadata

Field	Value
Publication number	US-10068610-B2
Application number	US-201615359772-A
Country	US
Kind code	B2
Filing date	Nov 23, 2016
Priority date	Dec 4, 2015
Publication date	Sep 4, 2018
Grant date	Sep 4, 2018

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.

First claim

What is claimed is:

1. A method for an audio/video (A/V) recording and communication device including a processor, a motion sensor, and a temperature sensor, the method comprising:
measuring, by the temperature sensor, temperature during an interval;
calculating, by the processor, a rate of change in the temperature during the interval;
comparing, by the processor, the rate of change in the temperature during the interval to a threshold value; and
ignoring, by the processor, any signals from the motion sensor that were generated during the interval when the rate of change in the temperature during the interval is greater than the threshold value.

2. The method of claim 1 , wherein the motion sensor comprises at least one passive infrared (PIR) sensor.

3. The method of claim 1 , wherein the A/V recording and communication device comprises one of a doorbell or a security camera.

4. The method of claim 1 , wherein the A/V recording and communication device further includes a battery, and wherein the measuring the temperature during the interval comprises measuring the temperature of the battery of the A/V recording and communication device during the interval.

5. The method of claim 1 , wherein the threshold value comprises 1° C./min.

6. An audio/video (A/V) recording and communication device, comprising:
a processor;
a motion sensor;
a temperature sensor; and
a computer-readable medium storing instructions that, when executed by the processor, cause the processor to perform operations comprising:
measuring, by the temperature sensor, temperature during an interval;
calculating, by the processor, a rate of change in the temperature during the interval;
comparing, by the processor, the rate of change in the temperature during the interval to a threshold value; and
ignoring, by the processor, signals from the motion sensor generated during the interval when the rate of change in the temperature during the interval is greater than the threshold value.

7. The A/V recording and communication device of claim 6 , wherein the motion sensor comprises at least one passive infrared (PIR) sensor.

8. The A/V recording and communication device of claim 6 , wherein the A/V recording and communication device comprises one of a doorbell or a security camera.

9. The A/V recording and communication device of claim 6 , further comprising a battery, and wherein the measuring the temperature during the interval comprises measuring the temperature of the battery of the A/V recording and communication device during the interval.

10. The A/V recording and communication device of claim 6 , wherein the threshold value comprises 1° C./min.

Assignees

• Ring Inc
• Amazon Tech Inc

Inventors

• Jeong Changsoo

Classifications

• H04N23/00

  Cameras or camera modules comprising electronic image sensors; Control thereof · CPC title

• H04N23/64

  Computer-aided capture of images, e.g. transfer from script file into camera, check of taken image quality, advice or proposal for image composition or decision on when to take image · CPC title

• G11B20/00905

  multiple watermarks used in combination · CPC title

• H04N5/77

  between a recording apparatus and a television camera · CPC title

• G11B20/10527 Primary

  Audio or video recording; Data buffering arrangements (G11B20/12 - G11B20/18 take precedence) · CPC title