| 摘要 |
PROBLEM TO BE SOLVED: To provide a mobile phone with a fingerprint authentication function whereby a fingerprint is used for authentication of a person to enhance security. SOLUTION: When a user places its finger to a fingerprint read section 21 after a display apparatus 51 displays start of registration, reading of fingerprint data is started and the fingerprint data are converted into feature data such as a feature point and relation. A nonvolatile memory 40 stores the feature data, and registration processing is finished. When the user places its finger to the fingerprint read section 21 during operation of the fingerprint authentication function, the fingerprint data are converted into feature data such as a feature point and relation. Collation data are extracted from the nonvolatile memory 40 and cross-referenced with the extracted feature data for calculation of a score. Coincidence/dissidence is discriminated depending on the magnitude relation between the score and a threshold value. When the discrimination indicates coincidence, the succeeding operation is executed and when dissidence is discriminated, power is interrupted to inhibit further operations. COPYRIGHT: (C)2003,JPO |
