| 摘要 |
Described is a communication system including mobile communication devices. In the described system, the mobile devices many be wrist-worn watches such as are in common use today, except that the watches are specially configured to receive data in a "broadcast" mode and transmit and/or receive data in a "localcast" mode. The localcast mode includes the ability to transmit and receive data in a peer-to-peer fashion, allowing mobile devices to communicate directly with each other. The ability to combine two of these communication modes in a tiny, integrated and hence cheap and low-power package provides many advantages over existing personal communication device solution.
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