US Patent 7019646 Combination smoke alarm and wireless location device

The present disclosure relates to a device and method for determining and automatically transmitting a geographic location of a wireless smoke alarm during a potential fire emergency. The wireless smoke alarm includes a smoke alarm interfaced with a wireless transceiver, which operates over an existing wireless telecommunications network. The wireless transceiver can be a cellular processor with an integrated memory for storing emergency identification data. In one mode of operation, upon sensing the presence of smoke, the wireless transceiver automatically transmits stored emergency identification data signals to a dispatch center.