Patent ID: 6205203
Filing Date: 2001-03-20
Classification: H04M

Abstract:
An emergency response system comprising:(1) a telephone monitor/transmitter adapted for connection to a telephone line with a telephone handset having keys for dialing digits, said telephone monitor/transmitter comprising:(a) electronic circuit means adapted to be connected to the telephone handset and the telephone line for generating a first signal in response to sequential dialing of at least one selected sequence of emergency digits, said electronic circuit means including a programmable microcontroller having a program responsive to dialing programming digits on the telephone handset,(b) encoding means having a first plurality of setting switches for assigning a first selectable binary code word in response to said first signal,(c) a radio transmitter and modulator connected to said encoding means for transmitting a radio signal modulated by the first binary code word, and(2) at least one receiver/signal beacon, comprising:(a) a radio receiver demodulator adapted to receive and demodulate the radio signal and output the first binary code word,(b) decoding means having a second plurality of setting switches for assigning a second selectable binary code word and connected to compare the second binary code word with the first binary code word and to provide a second signal when the second binary code word matches the first binary code word, and(c) emergency signaling means comprising a flashing beacon arranged for placement in a location visible to emergency rescue personnel and connected to the decoding means to be actuated by the second signal.