Tire pressure measurement system with reduced current...

Details Tire pressure measurement system with reduced current... Tire pressure measurement system with reduced current...

2011-06-07

2011-06-07

Caputo, Lisa M (Department: 2855)

Measuring and testing

Tire, tread or roadway

C073S753000

Reexamination Certificate

active

07954369

ABSTRACT:
A tire pressure measurement system (TPMS) includes a capacitor and an integrated circuit configured to receive a supply voltage. The integrated circuit includes a voltage regulator and a measurement unit. The voltage regulator is configured to be turned on and off for predetermined periods of time such that the capacitor is charged and discharged, respectively. The voltage regulator and the capacitor are connected to the measurement unit in order to selectively provide electric charge at a voltage between predetermined upper and lower limits.

REFERENCES:
patent: 3200322 (1965-08-01), Rhyne, Jr et al.
patent: 3303417 (1967-02-01), Walton
patent: 3350629 (1967-10-01), Kirby
patent: 6535116 (2003-03-01), Zhou
patent: 6807853 (2004-10-01), Adamson et al.
patent: 7363806 (2008-04-01), Huang et al.
patent: 2006/0028333 (2006-02-01), Tyndall

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