Patent ID: 7233364

Claim:
A coefficient data generating apparatus that is used, when converting a first information signal composed of a plurality of information data into a second information signal composed of a plurality of information data, for generating coefficient data for an estimate equation for calculating information data of a subject point associated with the second information signal from a plurality of information data extracted from the first information signal, said coefficient data generating apparatus comprising: storage means for storing coefficient data for a generating equation, which includes a predetermined parameter, for generating elements of a plurality of summation matrices for obtaining coefficient data for the estimate equation; parameter setting means for setting a value of the predetermined parameter; matrix element generating means for generating the elements of the summation matrix by the generating equation based on the coefficient data stored in said storage means, in accordance with the value of the predetermined parameter set by said parameter setting means; and coefficient data generating means for generating coefficient data for the estimate equation using the plurality of summation matrices composed of the elements generated by said matrix element generating means, wherein each summation matrix is generated by using different parameter values, and said coefficient data in said storage means is obtained by using a plurality of first learning signals associated with said first information signal and a plurality of second learning signals associated with said second information signal and said coefficient data in said storage means is prepared with respect to each element of the plurality of summation matrices.