Patent ID: 9307562
Filing Date: 2016-04-05
CPC Classification: H04B,H04Q,H04W

Claim Text:
1. A method of retrofitting an emergency communication system comprising: supplying a building having a hard wired preexistent system for emergency communication, the preexistent system conforming to a historical fire code standard, the preexistent system including one or more of pairs of fire resistant wires connecting a plurality of access nodes to a central panel; coupling one or more adapters to one or more pairs of wires of the one or more pairs of fire resistant wires; installing at least two receivers of emergency band wireless signals into said building; each of said at least two receivers communicating with at least one of said one or more adapters such said signals received by receivers are relayed by said one or more adapters onto said one or more pairs of fire resistant wires; connecting a communication interface to said one or more pairs of fire resistant wires such that said communication interface receives said signals relayed over said one or more pairs of fire resistant wires; receiving multiple versions of one signal by said communication interface outputting a single version of said one signal; further connecting said communication interface to a first network transmitter; transmitting by said first network transmitter of said single version of said one signal over an emergency wireless band; also connecting said communication interface to a second network transmitter; synchronizing said second network transmitter with said first network transmitter; and simultaneous transmitting by said second network transmitter said single version of said one signal over said emergency wireless band, simultaneous to said transmitting of said first network transmitter.