Non-stop automatic toll collection system

Details Non-stop automatic toll collection system Non-stop automatic toll collection system

1997-12-10

1999-08-03

Hofsass, Jeffery A.

Communications: electrical

Traffic control indicator

Combined

340907, 340933, 340935, 235384, 342 44, G08G 100

Patent

active

059330961

ABSTRACT:
In a non-stop automatic toll collection system for exchanging information by radio between a vehicle-mounted device mounted on a vehicle and a toll station, the toll station side comprises two receivers having different directional properties. The gain of one receiver is high when the vehicle is inside a toll collection area in which a toll charge is collected, and the gain of the other receiver is high when the vehicle is outside this toll collection area. It can therefore be determined whether the source emanating the received radio waves is inside or outside the toll collection area by comparing the intensity of the signal received by these two receivers.

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"Disappearing Toll Gates", Asahi Shimbun, Morning Edition, Sep. 28, 1996, p. 31.

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