Patent ID: 7405668

Claim:
A method for receiving alarm warnings with a mobile communication device, comprising the steps of: storing a district-warning radio frequency contrast table in the mobile communication device, wherein the district-warning radio frequency contrast table records a relationship between a plurality of districts and a plurality of warning radio frequencies for broadcasting the audio warning messages corresponding to one of the plurality of districts; generating a position data indicating a user location with a positioning module; finding a current warning radio frequency according a current district, wherein the current district is one of the plurality of districts in which the user is located and determined by the position data, and the current warning radio frequency is one of the plurality warning radio frequencies corresponding to the current district in the district-warning radio frequency contrast table; receiving a radio signal according to the current warning radio frequency and demodulating the radio signal to obtain a current audio warning message corresponding to the current district; and automatically adjusting the current district and current warning radio frequency when the user moves from district to district amongst the plurality of districts according to new position data.