Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Reexamination Certificate
2005-04-26
2005-04-26
Pope, Daryl C (Department: 2632)
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
C340S438000, C340S442000, C340S445000, C340S447000, C116S03400R, C073S146000, C073S146200
Reexamination Certificate
active
06885293
ABSTRACT:
Provided is a tire air pressure monitoring system capable of grasping the tire positions where there are sensor units even in the case of tire rotation. In the tire air pressure monitoring system, a trigger signal is transmitted from a transmission coil antenna to only the corresponding sensor unit in a manner such that a magnetic field is used as a medium and, upon receipt of the trigger signal, the sensor unit measures a tire air pressure and others and transmits a transmission signal including the measurement values to a monitoring unit. The monitoring unit makes a decision on the tire position where there is the sensor unit on the basis of the transmission signal from the sensor unit.
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patent: 3212311 (2001-07-01), None
Denso Corporation
Pope Daryl C
Posz Law Group , PLC
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