Speedometer/odometer apparatus

Details Speedometer/odometer apparatus Speedometer/odometer apparatus

1994-07-29

1995-12-12

Heyman, John S.

Electrical pulse counters, pulse dividers, or shift registers: c

Applications

Measuring or testing

324171, 324178, 364561, G01P 350

Patent

active

054757240

ABSTRACT:
A speedometer/odometer apparatus, wherein a sensor inputs an electronic sensing signal to an amplifier and a selecting device to be amplified and output as a stable single stroke signal. The signal is combined with a frequency signal from a crystal oscillator and divided into regular pulses. The frequency of the pulses is divided by a frequency divider circuit and output as two signals with high accuracy for respectively controlling the speed indication of the speedometer and mileage indication of the odometer.

REFERENCES:
patent: 4167699 (1979-09-01), Baker
patent: 5025401 (1991-06-01), Kato
patent: 5105150 (1992-04-01), Liu
patent: 5357451 (1994-10-01), Beaudry et al.

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