Patent ID: 9497506
Filing Date: 2016-11-15
CPC Classification: H04N

Claim Text:
1. A method of estimating input lag of audio/video data transmitted from a source device to a sink device, comprising: generating an image at the source device and rendering the image on a display of the source device; receiving, at the source device, a first input from an input device of the source device; measuring, at the source device, a delay (d1) between the rendering the image on the display of the source device and the receiving of the first input; transmitting the image from the source device to the sink device for reproduction on a display of the sink device; detecting, at the source device, reproduction of the image on the display of the sink device; receiving, at the source device, a second input from the input device; measuring, at the source device, a delay (d2) between the detecting reproduction of the image on the display of the sink device and the receiving of the second input; and, estimating the input lag by subtracting d1 from d2.