| US 7,453,350 B2 | ||
| Tire pressure monitoring system transmission protocol | ||
| Patricia Kachouh, Troy, Mich. (US); Tejas B. Desai, Sterling Heights, Mich. (US); and Kurt VanDrus, Macomb, Mich. (US) | ||
| Assigned to Continental Automotive Systems US, Inc., Auburn Hills (US) | ||
| Filed on Jun. 20, 2006, as Appl. No. 11/471,386. | ||
| Application 11/471386 is a continuation of application No. 10/298058, filed on Nov. 15, 2002, granted, now 7,095,316. | ||
| Claims priority of provisional application 60/336265, filed on Nov. 15, 2001. | ||
| Prior Publication US 2006/0238324 A1, Oct. 26, 2006 | ||
| Int. Cl. B60C 23/02 (2006.01) | ||
| U.S. Cl. 340—442 [340/447; 340/5.6; 340/5.64; 340/825.58; 340/825.69; 73/146.2] | 6 Claims |
| 1. 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.
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