Patent ID: 7262808

Claim:
A coefficient generation apparatus for generating any one of coefficient data for an estimation equation and coefficient seed data, said estimation equation being used for converting a first informational signal comprised of multiple items of informational data into a second informational signal comprised of multiple items of informational data, said coefficient seed data being coefficient data in a generation equation for generating the coefficient data for the estimation equation, said apparatus comprising: a storage unit configured to store a normal equation for calculating any one of the coefficient data for the estimation equation and the coefficient seed data for each class in a basic class configuration comprised of all of plural features of the first informational signal; a normal equation generation unit configured to generate a normal equation for calculating any one of the coefficient data for the estimation equation and the coefficient seed data for each class in the target class configuration based on information of a target class configuration comprised of at least arbitrary one of said plural features of the first informational signal; and a calculation unit configured to solve the normal equation, which is generated by the normal equation generation unit, and to calculate any one of the coefficient data for the estimation equation and the coefficient seed data for each class in the target class configuration to calculate for each class any one of the coefficient data for the estimation equation and the coefficient seed data.