초록 ▼

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 secon

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.

대표청구항 ▼

A digital video signal encoder for coding a digital video signal, wherein the digital video signal is divided into a plurality of processing blocks, which comprises: means for converting a processing block of the digital video signal into a set of quantized transform coefficients having a low and a

A digital video signal encoder for coding a digital video signal, wherein the digital video signal is divided into a plurality of processing blocks, which comprises: means for converting a processing block of the digital video signal into a set of quantized transform coefficients having a low and a high frequency zones; scanning means for scanning the set of quantized transform coefficients along a predetermined scanning sequence progressing from low frequency quantized transform coefficients towards high frequency quantized transform coefficients to produce a first and a second subsets of scanned coefficients based on a predetermined frequency boundary, the scanned coefficients of the first subset corresponding to the low frequency zone and the scanned coefficients of the second subset corresponding to the high frequency zone; first runlength coding(RLC) means for converting the scanned coefficients of the first subset into a first set of one or more RLC codes; first variable length coding(VLC) means for coding each RLC code of the first set to thereby generate a first set of one or more variable length codewords; second RLC means for converting the scanned coefficients of the second subset into a second set of one or more RLC codes; and second VLC means for coding each RLC code of the second set to thereby generate a second set of one or more variable length codewords.