Device for the monitoring and wireless signaling of a pressure or a change of pressure in pneumatic tires
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United States of America Patent
Stats
-
Jan 15, 2008
Grant Date -
Feb 2, 2006
app pub date -
Jul 29, 2003
filing date -
Aug 1, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system for the monitoring and wireless signaling of a pressure or a change of pressure in pneumatic tires on vehicles, comprisingwheel electronics that are disposed inside the pneumatic tire and are provided with a battery as a power source, with a pressure sensor for measuring the pressure or the change of pressure, with a RF-transmitter for transmitting a signal derived from the signal of the pressure sensor, and with a (first) receiver for receiving wireless interrogation signals and/or control signals,a (second) receiver which is arranged in or on the vehicle and which receives the signal derived from the signal of the pressure sensor,a device for signaling to the driver information relating to the pressure or change of pressure,and transmitters for emitting interrogation signals and/or control signals, the transmitters being disposed, respectively, individually near each running wheel and having a transmission frequency of less than 1 MHz.
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