Patent ID: 7020202
Filing Date: 2006-03-28
Classification: G06T,H04N

Abstract:
1. A system for receiving and processing multiple streams of MPEG data comprising: a first digital tuner for tuning a first data channel containing a first MPEG data stream; a second digital tuner for tuning a first data channel containing a second MPEG data stream; an MPEG decoding module receiving the first MPEG data stream and producing a first reconstructed video output signal, the MPEG decoding module further receiving the second MPEG data stream and producing a second reconstructed video output signal with reduced data, the second reconstructed video output signal being derived from reduced frequency coefficients and predicted frame data, wherein the reduced frequency coefficients are obtained by subsampling of spatial domain data, and wherein the subsampling includes creating a spatial subsample from at least two spatial samples and weighting color parameters of data of the second MPEG data stream by a factor that is inversely proportional to a relative spatial distance from the at least two spatial samples to the corresponding spatial subsample; and a display coupled with the MPEG decoding module for rendering a video image based on either the first reconstructed video output, the second reconstructed video output, or a combination of the first and second reconstructed video output signals.