Patent ID: 6636640
Filing Date: 2003-10-21
Classification: H04N

Abstract:
An adaptive decoding system for receiving and decoding a plurality of video signals of different resolutions corresponding to a plurality of display units having the same resolutions, comprising:an integrated services digital broadcasting (ISDB) receiver having a signal separator for receiving and separating ISDB data into a hierarchical encoded bit stream, additive information, and a time code; an additive information decoder for decoding the additive information; a resolution creating circuit for decoding said hierarchical encoded bit stream into said plurality of video signals; comprising: a classifying circuit for classifying blocks of pixels from said hierarchical encoded bit stream into classes; a predictive value circuit for calculating predictive value blocks from said hierarchical encoded bit stream; a resolution setting circuit for producing resolution signals corresponding to the resolutions of said plurality of display units for displaying said plurality of video signals; and a forecasting circuit for performing adaptive processing to obtain said plurality of video signals by linearly coupling predictive coefficients determined on the basis of said classes, said predictive value blocks, and said resolution signals; and a selector for selectively outputting the decoded plurality of video signals and the decoded additive information to the corresponding plurality of display units having the same resolution.