Coded signal separating and merging apparatus, method and...

Details Coded signal separating and merging apparatus, method and... Coded signal separating and merging apparatus, method and...

H - Electricity

04

N

H04N 7/50 (2006.01) H04N 7/26 (2006.01)

Patent

CA 2355431

Herein disclosed a bit stream separating apparatus for inputting and transcoding an original MPEG-2 bit stream, and separating the transcoded MPEG- 2 bit stream to generate a transcoded MPEG-2 bit stream and a differential bit stream, which is a differential bit stream between the original MPEG-2 bit stream and the transcoded MPEG-2 bit stream, and a bit stream merging apparatus for inputting and merging the transcoded MPEG-2 bit stream and the differential bit stream to reconstruct the original MPEG-2 bit stream. The bit stream separating apparatus makes it possible for the bit stream merging apparatus to reconstruct the original, high quality, MPEG-2 bit stream from the transcoded MPEG-2 bit stream already received and the differential bit stream, thereby eliminating the effort and time to send the original MPEG-2 bit stream again.

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