BRIEF DESCRIPTION OF THE DRAWINGS
Other objects, features and advantages of the present invention will become clear upon reviewing the following description of the preferred embodiment with reference to the accompanying drawings, in which:
FIG. 1 is a conceptual diagram of a tire information communication system in accordance with a first embodiment of the present invention;
FIG. 2 is a sectional view of a tire, tire wheel and tire-pressure detector;
FIG. 3 is a circuit diagram showing the tire-pressure detector;
FIG. 4 is a circuit diagram showing a transmission interface;
FIG. 5 is a schematic diagram of electric field around the vehicle;
FIG. 6 is a circuit diagram showing a tire monitor;
FIG. 7 is a circuit diagram showing a receiving interface;
FIG. 8 is a circuit diagram showing the tire-pressure detector employed in the tire information communication system in accordance with a second embodiment of the invention;
FIG. 9 is a circuit diagram showing the tire monitor;
FIG. 10 is a conceptual diagram showing an electrical arrangement of the tire information communication system in accordance with a third embodiment of the invention;
FIG. 11 is a schematic diagram of electric field around the vehicle;
FIG. 12 is a graph showing the result of experiment 1;
FIG. 13 is a graph showing the results of experiments 2 and 3;
FIG. 14 is a circuit diagram showing a circuit equivalent to the tire information communication system;
FIGS. 15A and 15B are a plan view and a side view of a vehicle employed in the experiments;
FIG. 16 is a graph showing the result of experiment 4;
FIG. 17 is a sectional view of a tire, tire wheel and tire-pressure detector in modified form 1;
FIG. 18 is a sectional view of a tire, tire wheel and tire-pressure detector in modified form 2; and
FIG. 19 is a sectional view of a tire, tire wheel and tire-pressure detector in modified form 3.
Patent Application
20070144248
