| 摘要 |
PROBLEM TO BE SOLVED: To strengthen antenna coupling characteristics with external associated equipment, thereby securing a wide communication area. SOLUTION: An antenna 1 is provided in a case 3a to perform short-range communication by electromagnetic induction. A metal exciting plate 2a is provided in the case 3a to be electrically connected to the antenna 1. A battery 5 is mounted in the case 3a. A battery cover 4a is attached to the case 3a detachably to fix the battery 5. The metal exciting plate 2b is provided in the battery cover 4a to electrically connect the battery 5 and the metal exciting plate 2a while the battery cover 4a is attached to the case 3a. COPYRIGHT: (C)2011,JPO&INPIT
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