Patent ID: 7688383

Claim:
A coefficient seed data production device for producing coefficient seed data set, said coefficient seed data set being coefficient data set in a production equation for producing coefficient data set used in an estimation equation for converting a first information signal containing plural informational data sets into a second information signal containing plural informational data sets, comprising: signal processing means for obtaining an input signal corresponding to said first information signal; parameter adjustment means for adjusting a value of a parameter for deciding a quality of an output obtained from said input signal, said value corresponding to a parameter contained in said production equation; first data selection means for selecting first plural informational data sets located on a periphery of an objective position in a teacher signal based on said input signal; class detection means for detecting a class including an informational data set of said objective position based on said first plural informational data sets selected by said first data selection means; second data selection means for selecting second plural informational data sets located on a periphery of the objective position in said teacher signal based on said input signal; normal equation production means for producing a normal equation for obtaining said coefficient seed data set for each class using the class detected by said class detection means, said second plural informational data sets selected by said second data selection means, and the informational data set of the objective position in the teacher signal; and coefficient seed data calculation means for solving said normal equation to obtain said coefficient seed data set for each class.