| 摘要 |
There are provided a device and method for enabling entry of handwritten data, such as a signature, without use of an electronic tablet. In step S 2 - 1 , a user affixes a signature by means of moving a pen device 30 in midair. In step S 2 - 2 , camera means 20 photographs the pen device 30 and outputs the resultant image data. In step S 2 - 3 , coordinate computation means 22 determines coordinates of a pen tip of the pen means 30 on a screen on the basis of the image data (motion picture data), thereby determining signature data. In step S 2 - 4 , comparison verification means 40 compares and verifies the thus-determined signature data with reference data. If a similarity exists between the signature data and the reference data, there is output an authentication result showing "authentication of verification." Thus, personal identification can be effected on the basis of the signature data written by the user in midair.
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