Patent ID: 8687630

Claim:
A communication device comprising: a receiver configured to receive a first data packet from a data broadcasting system, wherein the first data packet comprises at least a first bit that corresponds to a location of the communication device, at least a second bit that corresponds to group information for the communication device, and at least a third bit that corresponds to an alert component; a second receiver configured to receive a second input signal such that the communication device is configured to simultaneously monitor two input signals, wherein the two input signals are separate alert signals at different frequencies; a processor operably connected to the receiver and configured to process the first data packet to determine whether the first data packet includes a message for a group to which the communication device belongs; a memory operably connected to the processor and configured to store data and at least one unique identification code; a mesh network transceiver operably connected to the processor and configured to: transmit the received first data packet via a mesh network to at least one of a plurality of additional communication devices, receive additional data packets via the mesh network from at least one of the plurality of communication devices,and relay the additional received data packets via the mesh network to at least one of the plurality of communication devices; an output device operably connected to the processor and configured to present the message at the communication device corresponding to at least one of the first data packet and the additional received data packets if the first data packet includes a message for the group to which the communication device belongs; and a plurality of programming instructions that, when executed, instruct the processor to: inspect the received data packet to determine, based on the unique identification code, whether the data packet is directed to the device, and only present the alert corresponding to the data packet if the processor determines that the data packet is directed to the device.