Patent ID: 7602983

Claim:
A wavelet transformation apparatus including a unit the unit comprising: a first adding device that adds a first input signal and a second input signal input by a predetermined order; a first multiplying device that multiplies an output of the first adding device with a coefficient; a second adding device that adds a fixed value to the output of the first adding device; a first switching device that switches the output of the first adding device and an output of the second adding device; a second multiplying device that multiplies an output of the first switching device with a coefficient; a second switching device that switches an output of the first multiplying device and an output of the second multiplying device; and a third adding device that adds a third input signal of a predetermined order to an output of the second switching device, wherein the second switching device selects the output of the first multiplying device when a 9×7 format and the output of the second multiplying device when a 5×3 format.