Variable length coder using two VLC tables

Details Variable length coder using two VLC tables Variable length coder using two VLC tables

1996-03-27

1997-06-17

Chin, Stephen

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

348405, 348419, 3582611, 358430, 375246, H04B 166

Patent

active

056404204

ABSTRACT:
A digital video signal encoder for coding a block of a digital video signal first converts the block of the digital video signal into a set of quantized transform coefficients having a low and a high frequency zones and scans the set of quantized transform coefficients to produce a first and a second subsets of scanned coefficients. The scanned coefficients of the first and the second subsets are converted into a first and a second sets of one or more RLC codes, respectively. The digital video signal encoder performs the coding each RLC code of the first and the second sets to generate a first and a second sets of one or more variable length codewords.

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