| 摘要 |
A portable telephone includes a speech transmission circuit, data transmission circuit, earphone/microphone detection circuit, and control circuit. The speech transmission circuit performs speech communication through an antenna. The data transmission circuit performs data communication through the antenna simultaneously with speech communication by the speech transmission circuit. The earphone/microphone detection circuit detects an obstacle that causes a deterioration in transmission efficiency of the antenna. When one of a data communication request during speech communication and a speech communication request during data communication is generated, the control circuit 11 determines on the basis of a detection result obtained by the detection circuit whether to permit/reject the request. A data communication control method for the portable telephone is also disclosed.
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