| 摘要 |
The present invention relates to a data transmission method and device. The method comprises: a first mobile device sends authentication data to a second mobile device through sound waves, and transmits data to the second mobile device through sound waves after the second mobile device is in successful authentication, thereby realizing data transmission between the first mobile device and the second mobile device through sound generating devices, such as microphones and loudspeakers, of the first mobile device and the second mobile device. Power consumption is small, and antennas relevant to communication of mobile devices cannot be disturbed. |
