Patent ID: 7327806

Claim:
A method for utilizing a single receiver to simultaneously receive and demodulate both amplitude shift keying (ASK) messages and frequency shift keying (FSK) messages, comprising the steps of: receiving a first message, wherein the first message is a frequency shift keying (FSK) modulated message; receiving a second message, wherein the second message is an amplitude shift keying (ASK) modulated message, and wherein the second message is received during at least a portion of the first message; using a single receiver to selectively demodulate the FSK and ASK modulated messages, wherein the single receiver provides a received signal strength indicator (RSSI) signal that provides an indication of a combined strength of the first and second messages; filtering the RSSI signal; and data slicing the filtered RSSI signal to provide a digital message, wherein the digital message corresponds to a demodulated version of the ASK modulated message.