Patent ID: 6483947
Filing Date: 2002-11-19
Classification: H04N

Abstract:
A video signal processing apparatus for processing variable-length coded data, said video signal processing apparatus comprising:specific component removing means for removing high-band components included in the variable-length coded data, said specific component removing means comprising: coding characteristic detecting means for detecting characteristics of variable-length codes of the variable-length coded data from the variable-length coded data; and specific code removing means for removing specific codes included in the variable-length coded data in accordance with the characteristics of the variable-length coded data detected by said coding characteristic detecting means, wherein said specific component removing means removes the high-band components by reading code lengths of the variable length codes of the variable-length coded data, accumulatively summing the code lengths to obtain a sum total of the code lengths, comparing the sum total of the code lengths with a predetermined threshold, and outputting variable-length codes of a code length lower than the predetermined threshold in accordance with a result of the comparison.