| 摘要 |
PROBLEM TO BE SOLVED: To provide a portable telephone set having an excellent communication performance by preventing an LSI provided on a printed circuit board in the portable telephone set from occurring malfunction due to a transmitting high frequency current increased by a secondary battery. SOLUTION: In the portable telephone set having the secondary battery, the conductive outer skin of the secondary battery is grounded with a ground of the printed circuit board provided inside the main body of the portable telephone set at a plurality of positions. COPYRIGHT: (C)2004,JPO
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