Patent Document ID: 9218061
Application ID: 13528675
Patent Status: 1

Claim One:
1. A method of audio and video synchronization, the method comprising: projecting an image frame by each of the projectors of the plurality of devices, wherein the image frame projected by each of the projectors of the plurality of devices is tiled or superimposed, and has an encoded or explicit frame number; capturing an image by a sensor attached to a device among a plurality of devices, wherein at least one of the plurality of devices has cellular phone, local area network, or wide area network connectivity and includes at least a projector, a sensor, and a computing device; identifying a most lagging or most ahead projector, in terms of time, based on a calculated frame display time difference for each of the plurality of devices, wherein the frame display time difference for each of the plurality of devices is based on the difference in frame number from the most lagging or most ahead projector, wherein the frame display time is representative of a time at which a respective image frame is displayed relative to other image frames; synchronizing the frame display time for image frames projected by each of the projectors attached to the plurality of devices and synchronizing the audio of each of the plurality of devices by synchronizing the clocks of the devices by comparing the calculated frame display time difference for each of the plurality of devices; and stalling or advancing the frame display time for image frames projected by at least one of the projectors attached to the plurality of devices by the calculated frame display time difference.