Patent ID: 8705387

Claim:
A system for time synchronization of a plurality of different body sensor networks, the system comprising: a plurality of different and separate body sensor networks that are operated on different and separate radio frequency channels, each one of the body sensor networks operating on a different and separate radio frequency channel and including: at least one data sensor configured to measure data of a person associated with one of the body sensor networks and communicate the measured data on the radio frequency channel of the one of the body sensor networks; and a gateway configured to receive the measured data from the at least one sensor of the one of the body sensor networks on the radio frequency channel of the one of the body sensor networks, a single time master for the plurality of different and separate body sensor networks configured to broadcast time synchronization messages alternately on the different and separate radio frequency channels of each one of the plurality of different and separate body sensor networks; and a data collector configured to receive the measured data from the gateways of the plurality separate body networks.