Video frequency decoding and channel trapping system


Application Number  00128394 Application Date  2000.11.28
Publication Number  1298259 Publication Date  2001.06.06
Priority Information   1999/11/30 US 09/451,064  
International
Classification
 H04N7/015;H04N5/14  
Applicant(s) Name  Thomson Licensing Corp.  
Address    
Inventor(s) Name  Robert.N. Hester;Jr.  
Patent Agency Code  11105 Patent Agent  shao eli
AbstractA digital video decoding system receives packetized video data representing programs conveyed on a plurality of video channels. The system includes a plurality of buffers (30, 50) for storing encoded video data representing images of video programs conveyed on a corresponding plurality of video channels. An individual buffer, corresponding to an individual video channel, stores sufficient encoded video data to prevent an underflow condition following switching to decode a program conveyed on the individual video channel. A processor (60) initiates switching to decode a program conveyed on a selected one of the plurality of video channels in response to a user channel selection input (70). A decoder (110) decodes encoded video data received from one of the plurality of buffers corresponding to the program conveyed on the selected video channel as determined by switching initiated by the processor. The decoder also predicts (130) a next channel to be selected by a user.