Patent ID: 8745689
Filing Date: 2014-06-03
Classification: H04N

Abstract:
1. A method for channel surfing compressed television signals comprising: providing access to a plurality of television channels from a first television signal input coupled to a first tuner; providing access to a non-program channel from a second television signal input coupled to a second tuner; receiving and viewing a first compressed video stream comprising a first plurality of compressed frames for a first channel; decoding one of the first plurality of compressed frames as a first decoded frame; providing the first decoded frame for display; storing a first I′ frame corresponding to a motion television programming for a second channel in a memory as a first stored I′ frame, wherein the first I′ frame is representative of the video portion of the particular program being broadcast on said second channel at the time of said storing and does not include an intra-coded frame used in the reconstruction of a P and B frame; updating said stored first I′ frame from time to time; wherein said first I′ frame is received on a non-program channel prior to storing it in the memory; upon receipt of a user command to change from viewing said first compressed video stream to viewing the video stream from said second channel, retrieving the first stored I′ frame from the memory; decoding the first stored I′ frame; and providing the first stored I′ frame for display before displaying said video stream from said second channel.