| 摘要 |
PROBLEM TO BE SOLVED: To provide an information processing unit, such as a mobile phone, equipped with a fingerprint sensor and an operation key including a PHS(Personal Handyphone System) for establishing both miniaturization and operability in high level. SOLUTION: A groove 123 having a first slope 123a stretching away from a key operation panel 121 and slanting downward, and shaped so as to be expanded upward or downward and a second slope 123b stretching further away from the key operation panel 121 than the first slope 123a, and slanting upward, and shaped so as to be expanded upward or downward is positioned adjacently to the key operation panel 121. A fingerprint sensor 124 is arranged in the groove 123. COPYRIGHT: (C)2005,JPO&NCIPI
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