Patent ID: 9497502
Filing Date: 2016-11-15
CPC Classification: H04L,H04N

Claim Text:
1. A method for enabling a channel change comprising: accessing a normal stream and a channel change stream, wherein the normal stream and the channel change stream correspond to a single video program and are multiplexed together before transmission to a decoder; receiving a channel change request from a viewing location at which the normal stream and the channel change stream are viewed by a viewer; and selecting and second the channel change stream to the viewing location in response to receiving the channel change request, wherein the channel change stream coded pictures are of a lower quality than the normal stream coded pictures, wherein a first coded picture in the channel change stream sent to the viewing location in response to receiving the channel change request is an I picture, and wherein said selecting limits an amount of data by selecting, at any given time, only one of the normal stream and the channel change stream to send to the viewing location for viewing by the viewer.