Patent ID: 7453350

Claim:
A method of transmitting information indicative of conditions within a tire comprising the steps of: a. transmitting a signal including an amplitude shift keyed transmission preamble to a receiver; b. transmitting a frequency shift keyed (FSK) identification code from a first transmitter; c. transmitting a fsk signal indicative of pressure within the tire from the first transmitter; d. transmitting a fsk signal indicative of temperature within the tire from the first transmitter, e. varying a time interval between portions of said identification code, said signal indicative of pressure within the tire, and said signal indicative of temperature within the tire; and f. receiving one of a frequency shift keyed (FSK) identification code, an FSK signal indicative of pressure within a tire, and an FSK signal indicative of a temperature within a tire from a second transmitter within the time interval between portions of any of the FSK signals from the first transmitter.