# US 10,873,846 B2 · Peripheral video presence detection

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- Number: US 10,873,846 B2
- Document ID: US10873846B2
- Status: Granted
- Kind: B2
- Application number: 16/205,574
- Filed: 2018-11-30
- Published: 2020-06-04
- Granted: 2020-12-22
- Earliest claimed: 2018-11-30
- Assignees: Comcast Cable Communications, LLC
- Applicants: Comcast Cable Communications, LLC
- Inventors: Jacob Gladish; Karen Swoyer
- Web page: https://patentgrep.com/patent/US10873846B2

## CPC

- H04W 4/025: {using location based information parameters}
- H04W 8/005: {Discovery of network devices, e.g. terminals}
- H04N 23/60: Control of cameras or camera modules
- H04N 23/661: Transmitting camera control signals through networks, e.g. control via the Internet
- H04N 23/695: Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
- H04N 23/90: Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
- H04W 4/029: Location-based management or tracking services
- G06V 20/52: Surveillance or monitoring of activities, e.g. for recognising suspicious objects (recognising microscopic objects G06V20/69)
- G06V 2201/10: Recognition assisted with metadata
- H04N 7/025: Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame {(transmission of digital non-picture data during the vertical blanking interval only H04N7/088)}
- H04W 4/33: for indoor environments, e.g. buildings
- H04W 8/20: Transfer of user or subscriber data
- H04W 84/12: WLAN [Wireless Local Area Networks]
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING

## Abstract

Systems, apparatuses, and methods are described for the detection of a device that may be in the presence of a video camera and may be sending and receiving signals within a local network. The device may be inside or outside the video camera's field of view. The camera or associated network device such as a router may discover the device in the periphery of or outside the field of view of the camera by detecting transmissions from the device, such as WiFi, Bluetooth, cellular or other wireless transmissions. The video camera may determine identifying information for the device from the transmissions and may store and transmit for analysis the information along with captured video.

## Claims

### Claim 1

A method comprising:
receiving, by a first computing device and from a second computing device, an image captured by the second computing device, wherein the image comprises information indicating a wireless signal detected at a time associated with the second computing device capturing the image;
determining, by the first computing device and based on the information indicating the wireless signal, an association of the image and a wireless device that sent the wireless signal;
determining, based on the image, that the wireless device is outside a field of view of the second computing device;
receiving, by the first computing device, from the second computing device, and after the determining that the wireless device is outside the field of view, a second image:
receiving, by the first computing device and from the wireless device, a request for one or more images; and
sending, by the first computing device, based on the request and on the determined association, and via an external network, the image, the second image, and the information to the wireless device.

### Claim 2 (depends on 1)

The method of claim 1 further comprising:
determining if a list of recognized wireless devices indicates the wireless device, wherein the list of recognized wireless devices comprises a temporal limitation for each recognized wireless device; and
sending an alert based on one of:
the wireless device not being on the list of recognized wireless devices, or
the time associated with the second computing device capturing the image being outside a temporal limitation for the wireless device.

### Claim 3 (depends on 1)

The method of claim 1, further comprising:
determining, based on the information indicating the wireless signal, a location of the wireless device; and
panning a camera towards the location of the wireless device.

### Claim 4 (depends on 1)

The method of claim 1, further comprising:
tagging the image with the information indicating the wireless signal; and
sending the tagged image to a monitoring entity via the external network.

### Claim 5 (depends on 4)

The method of claim 4, wherein the tagging the image further comprises embedding the information indicating the wireless device in the image as metadata.

### Claim 6 (depends on 1)

The method of claim 1, wherein the image comprises a plurality of video frames of a video signal.

### Claim 7 (depends on 1)

The method of claim 1 further comprising maintaining a list of wireless signals that were detected at a plurality of times associated with a capture of a plurality of images.

### Claim 8 (depends on 1)

The method of claim 1, wherein the second computing device comprises one or more of a camera, a gateway, a mobile device, or a laptop.

### Claim 9 (depends on 1)

The method of claim 1, further comprising:
storing, in a database, the image and the determined association; and
searching the database for a particular wireless device.

### Claim 10 (depends on 1)

The method of claim 1, wherein the information indicating the wireless signal comprises location information for the wireless device that sent the wireless signal.

### Claim 11

A method comprising:
receiving, by a computing device and from a camera:
a video captured by the camera; and
information indicating a source of a wireless signal that was detected at a time associated with capture of the video by the camera;
determining, by the computing device and based on the video, that the source is outside a field of view of the camera;
determining, based on the determining that the source is outside the field of view, a location of the source;
activating, based on the location of the source, a second camera; and
storing, in a database, a second video from the second camera, the information indicating the source, and the location of the source.

### Claim 12 (depends on 11)

The method of claim 11 wherein the camera is located at a premises, the method further comprising:
determining, based on a list of predetermined trusted devices for the premises, that the source of the wireless signal is not a trusted device; and
causing, based on the location of the source of the wireless signal, the camera to pan toward the location.

### Claim 13 (depends on 11)

The method of claim 11, further comprising:
receiving, from the second camera, the second video; and
determining, based on the second video, that the source is in a second field of view of the second camera.

### Claim 14 (depends on 11)

The method of claim 11, wherein the second camera is a drone, and the method further comprising:
sending the drone to the location of the source of the wireless signal; and
causing the drone to track the source of the wireless signal until the wireless signal is no longer detected.

### Claim 15 (depends on 11)

The method of claim 11, wherein the determining the location of the source comprises triangulating the location.

### Claim 16 (depends on 11)

The method of claim 11, further comprising injecting the second video with the information indicating the source to generate an updated video; and
sending, via a network, the updated video to a monitoring entity.
