Patent ID: 7979718
Filing Date: 2011-07-12
Classification: G10L

Abstract:
1. An operator recognition device having a database in which biological information for comparison, for which registration can be changed and that is obtained from biological information for each operator that is the object of recognition, is registered in advance, and that recognizes an operator by comparing biological information of the operator to be identified with the biological information for comparison, comprising: an input device for inputting biological information to be registered when registering the biological information in the database as biological information for comparison; a comparison-target information generation device for generating comparison-target information for comparison with the biological information for comparison that is registered in the database based on input biological information to be registered when registering the biological information in the database as biological information for comparison; a calculation device for comparing the generated comparison-target information and all of the biological information for comparison, and calculating likelihoods for both the generated comparison-target information and all of the biological information for comparison; a notification device for notifying the operator to re-input biological information having a characteristic amount that is different than that of the input biological information when at least one of the calculated likelihoods is greater than a reference likelihood; a memory device for temporarily storing the input biological information, and storing at least the maximum likelihood of the likelihoods that are greater than the reference likelihood for each input biological information; and an update device for registering biological information that has the minimum maximum likelihood of the maximum likelihoods of the stored biological information, as the biological information for comparison, in the database, when the biological information is re-input a preset number of times, and when the likelihood that is based on any of the input biological information is greater than the reference likelihood.