| 摘要 |
PROBLEM TO BE SOLVED: To provide a cost effective method and device to input information to an electronic device. SOLUTION: The dual-sided keyboard 1 to input information to an electronic device comprises a circuit board 50 having a first surface and an opposite second surface with a conductive segment 60 on the first surface, a plurality of first keys 12 next to the first surface, a plurality of second keys 22 next to the second surface, and a plurality of conductive members 44 disposed on the first surface of the circuit board 50. When at least one of the first and second keys 12 and 22 is pressed, at least one of conductive members 44 is operably connected to the circuit board 50 and electrically in contact with one part of the conductive segment 60 on the first surface of the circuit board. As the result, a signal indicating information to be used by the electronic device is supplied to the device. COPYRIGHT: (C)2009,JPO&INPIT
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