Patent ID: 8346834

Claim:
An information processing device for processing reception signals converted into digital signals, comprising: first conversion means for executing sampling rate conversion of each of said digital signals to be computed with each tap coefficient of a K'th-order FIR filter, wherein said first conversion means execute sampling rate conversion by subjecting each of said digital signals to thinning out, interpolation, or filtering processing, said first conversion means comprising: second conversion means for receiving input of said digital signals, and converting a predetermined L data groups out of said digital signals that have been input, into output of K series corresponding to the tap coefficients of said K'th-order FIR filter; K third conversion means for subjecting said L data groups output from said second conversion means to interpolation and rate conversion, and outputting N data groups, N being a data count different from the data count L, wherein, of said K third conversion means, said third conversion means output a data series corresponding to the i'th (0≦i≦K) tap coefficient receive input of said L data groups delayed by i, i+M, i+2M, . . . , i+(L−1)M samples from the current timing; digital filter means for providing said K'th order FIR filter for said K digital signals each of which have been subjected to sampling rate conversion by said first conversion means; and control means, responsive to a control input signal, for controlling sampling rate conversion of said digital signals by said first conversion means, and controlling the processing of said K'th order FIR filter.