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DEVICE FOR CORRECTION DISCRETE COSINE TRANSFORM AND INVERSE CORRECTION DISCRETE COSINE TRANSFORM CALCULATION AND COMPUTER READABLE RECORDING MEDIUM
DEVICE FOR CORRECTION DISCRETE COSINE TRANSFORM AND INVERSE CORRECTION DISCRETE COSINE TRANSFORM CALCULATION AND COMPUTER READABLE RECORDING MEDIUM
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机译:修正离散余弦变换和逆修正离散余弦变换计算和计算机可读记录介质的设备
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摘要
PROBLEM TO BE SOLVED: To reduce memory capacity for storing window coefficient streams with respect to a device for correction discrete cosine transform. ;SOLUTION: A differential window coefficient stream storage part 15 in a window coefficient stream output part 11 stores a differential window coefficient stream differentially encoding a window coefficient stream and a window coefficient stream generating part 14 generates the window coefficient stream by differentially decoding the differential window coefficient stream. A window coefficient stream multiplying part 12 generates a window signal stream by multiplying the window coefficient streams outputted from the widow coefficient stream output part 11 and a correction discrete cosine transform calculation part 13 applies correction discrete cosine transform to the widow signal stream.;COPYRIGHT: (C)2000,JPO
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