Multi-functional transcoder for compressed bit streams

Details Multi-functional transcoder for compressed bit streams Multi-functional transcoder for compressed bit streams

H - Electricity

04

N

H04N 7/26 (2006.01) H04N 11/02 (2006.01)

Patent

CA 2293927

A method and apparatus for transcoding digital video data, for example, at the headend of a cable or satellite television network. A generic multi-functional transcoder architecture has a "post-pre-processing engine" that provides a number of processing functions for implementing desired format conversions according to a user selection signal or an automatically generated selection signal. The processing functions can change frame size, frame rate, color space sampling format, interlaced or progressive scan format, resolution, and provide noise/deblocking filtering, for example. The system also allows the control of several transcoders to convert several bit streams with different formats into corresponding bit streams with a common format. Furthermore, the transcoder avoids the need for motion estimation.

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