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Group video synchronization

a video synchronization and group technology, applied in the direction of television system, connection management, broadcast service distribution, etc., can solve problems such as confusion among officers

Active Publication Date: 2019-07-18
MOTOROLA SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a method and apparatus for synchronizing group video among public-safety officers. The invention addresses the problem of differing latencies and pausing among video shared among officers, which can lead to confusion among officers. The invention allows officers to transmit synchronization information over an LMR network, ensuring that all officers are viewing the same video frame. The invention can be triggered by a PTT button press or a touch to a touchscreen. The technical effect of the invention is to improve video communication among public-safety officers and enhance operational efficiency.

Problems solved by technology

Furthermore, the user who is live recording (e.g. using body worn camera) and uploading the live video will not have the same view with the downloading user who is receiving the video with network latency.
This can lead to confusion among officers as they discussing subject matter in the video.

Method used

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Embodiment Construction

[0011]In order to address the above-mentioned need, a method and apparatus for synchronizing group video is provided herein. Upon a triggering event, users viewing a video over an LTE network will transmit synchronization information (e.g., a frame number, or a time stamp of the video frame, . . . , etc.) over an LMR and / or LTE network. In response, user devices will synchronize to the same spot in the video.

[0012]The triggering event may be a Push-to-Talk (PTT) event. More particularly, a user viewing the video may initiate a voice transmission by pressing a PTT button on a PTT device. Push-to-talk (PTT) devices are commonly employed by public safety personnel, air traffic controllers, emergency workers, construction site workers, and others who need to be in constant and readily available voice communication. PTT, also known as press-to-transmit, is a method of communicating using half-duplex communication. A PTT button may be pressed to switch a device from a voice reception mode...

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PUM

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Abstract

A method and apparatus for synchronizing group video is provided herein. Upon a triggering event, users viewing a video over an LTE network will transmit synchronization information (e.g., a frame number, or a time stamp of the video frame, . . . , etc.) over an LMR and / or LTE network. In response, user devices will synchronize to the same spot in the video.

Description

BACKGROUND OF THE INVENTION[0001]With body-worn cameras becoming ubiquitous, the amount public-safety officers sharing and viewing video is becoming more-and-more common. Video shared among officers is typically accomplished by utilizing a broadband over-the-air network, such as a Long-Term-Evolution (LTE) network capable of achieving large data rates. Due to differing channel conditions between users, viewers may be receiving the video at different latencies (based on, for example, LTE signal conditions at each user). In addition, users may pause and resume video, resulting in viewers simultaneously watching different parts of the same video.[0002]Consider the fact that voice communications through a Land Mobile Radio (LMR) among public-safety officers are instantaneous, and carried on a different network than the broadband network. Thus, voice communications among public-safety officers are instantaneous, while video shared among officers may be delayed (differently for each offic...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04N7/14H04W4/10H04W76/45
CPCH04N7/147H04L65/403H04W76/45H04W4/10H04L65/4061H04N7/148H04W4/90H04N21/8547H04N21/2187H04N21/6131H04N21/6181H04N21/43076H04N2007/145
Inventor LIM, BING QINKEE, CHEW YEE
Owner MOTOROLA SOLUTIONS INC