Reduced cost methods and apparatus for decoding bi-directionally

Details Reduced cost methods and apparatus for decoding bi-directionally Reduced cost methods and apparatus for decoding bi-directionally

2000-02-14

2000-12-26

Britton, Howard

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

37524016, H04N 750

Patent

active

061670898

ABSTRACT:
Methods and apparatus for implementing a reduced cost HDTV/SDTV video decoder are disclosed. The described joint video decoder is capable of decoding HDTV pictures at approximately the resolution of standard definition television pictures and can be used to decode HDTV and/or SDTV pictures. The described video decoder may be used as part of a picture-in-picture decoder circuit for providing picture-in-picture capability without providing multiple full resolution video decoders. The reduction in decoder circuit complexity is achieved through the use of a plurality of data reduction techniques including the use of a preparser, downsampling, and truncating pixel values.

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