Patent ID: 8281351
Filing Date: 2012-10-02
Classification: H04N

Abstract:
1. A method for rapid channel change, comprising: accessing a network video queue from a telecommunication network via a first node; receiving the network video queue via an access node, the access node including a buffer memory to distinguish the network video queue boundaries; transferring packets from the network video queue into a decoder video queue at a constant bit rate and a variable bit rate; discarding a video frame at a top position of the network video queue in response to a channel change operation, and wherein the video frame is discarded only if the video frame at the top position of the network video queue is a B-frame; concealing the discarded video frame; and moving video frames forward in time from further back in the network video queue until a delay in the network video queue caused by the video frame being discarded is removed, at which time all remaining video frames including subsequent B-Frames in the network video queue are transmitted to the viewer.