Vehicle position indicator

Details Vehicle position indicator Vehicle position indicator

1977-04-11

1979-03-20

Thesz, Joseph M.

Registers

Platform operated

Platform actuated traffic counters

235 92EV, 235 92PE, 235 92PL, 235 92R, 364424, 364460, 364561, G06F 1520, G06M 314

Patent

active

041456050

ABSTRACT:
A position indicator for automobiles, trucks, and other vehicles includes a numerical display of the vehicle position with respect to an interstate highway by providing a readout of the mile marker location of the vehicle. The display is actuated by an electrical circuit including a presettable up/down counter in which the initial location of the vehicle with respect to a reference marker along the highway is stored. Subsequent vehicle movement increments or decrements the stored count in response to the receipt of vehicle movement pulses from a pulse generator. A calibration circuit is provided to accurately calibrate the system for different vehicles. In one embodiment, a digital keyboard is provided for entering the initial vehicle position information.

REFERENCES:
patent: 3226021 (1965-12-01), Dusinberre et al.
patent: 3614617 (1971-10-01), Blake
patent: 3865305 (1975-02-01), Sampey
patent: 3947664 (1976-03-01), Cox et al.
patent: 3984661 (1976-10-01), Mayer et al.
patent: 4053749 (1977-10-01), Shinoda et al.
patent: 4068307 (1978-01-01), Floyd
patent: 4068308 (1978-01-01), Opper
patent: 4074196 (1978-02-01), Webster

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