Invention Grant
US08391839B2 Communication devices and method of communication 有权
通讯设备及通讯方式

Communication devices and method of communication
Abstract:
In a portable communications device, information provided by an identification means is used to establish communication between communication means and a second device, such as a point of sale machine, to ensure that the correct portable communications device is connected to the second device where there may be a large number of second devices and a large number of portable communications devices in close proximity.
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