| 摘要 |
PROBLEM TO BE SOLVED: To prevent reception sensitivity of wireless communication of a mobile information terminal from being deteriorated while relaying wired communication between the mobile information terminal and an external device. SOLUTION: A mounting means in which a mobile information terminal for performing wired communication and wireless communication can be mounted and a wiring board 21 on which signal terminals 232, 233 to be connected to a wired communication connecting terminal of the mounted mobile information terminal and a USB connector 8 to which a communication cable for connecting to an external device are mounted, are included, wherein the wiring board 21 comprises: signal lines 213, 214 for transmitting signals while interconnecting terminals corresponding to the signal terminals 232, 233 and a terminal of the USB connector 8, respectively; coils 307, 308, 311, 312, 315, 316 for attenuating a signal in a common mode of a frequency band corresponding to wireless communication of the mobile information terminal among signals transmitted on the signal lines 213, 214; and capacitors 309, 310, 313, 314. COPYRIGHT: (C)2008,JPO&INPIT
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