Importance

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Abstract

A tire pressure range monitoring apparatus or system for sensing high and low tire air pressures outside assigned limits and communicating information regarding tire pressure to an operator of a vehicle. The tire pressure monitor is comprised of a battery powered wheel attachable unit having high and low tire pressure sensors with electrical switches; a digital encoder activated by the pressure sensors; a pressure change restrictor for preventing transitory air pressure changes from activating the pressure sensor switches; and an RF transmitter and antenna for transmitting digital information. A vehicle attachable unit for receiving and processing the digital information is attachable to the vehicle remote of the wheel, and is comprised of an RF receiving antenna; an RF receiver; a digital decoder; and a display controller. One vehicle attachable unit may function with a plurality of wheel attachable units on a given vehicle. A visual display in communication with the vehicle attachable unit is located convenient to the vehicle operator, and will display for the operator an anomaly sensed in tire pressure, and precisely identify the tire and pressure condition of the tire involved. False alarms are essentially eliminate through the use of digital information pertaining to a particular tire, and through a required match in digital source identification information between wheel attachable units of a given vehicle with a vehicle attachable unit of the same vehicle prior to the vehicle attachable unit fully responding and sending information to the visual display.

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First Claim