WAVELET TRANSFORMER OF DIGITAL DATA, FILTER FOR ITS REVERSE TRANSFORMER AND REVERSE FILTER

摘要

PROBLEM TO BE SOLVED: To provide a discrete wavelet transformer with an improved operational speed, a filter for inverse transformers, and an inverse filter.

SOLUTION: A filter for separating a digital data string into high frequency component data and low frequency component data has an even input terminal IN0 and an odd input terminal IN1 for inputting an even data string Xe and an odd data string Xo at the same time, and inputs even and odd data via the even and odd input terminals IN0, IN1 in synchronization with the clock cycle to generate high frequency component data HP and low frequency component data LP. Since it inputs the even and odd data strings at the same time, the operational speed can be raised.

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