Patent · US Active

Beacon for a road toll system

US8830087B2 · kind B2 · utility

5Cited by

4References

6Claims

0Family size

Assignee

Kapsch TrafficCom AG · SE

Inventors

Jasja Tijink · Purkersdorf, AT
Robert Povolny · Wien, AT
Gerald Zottl · Eisenlohrsweg, AT

Key dates

Filing date	Apr 18, 2011
Grant date	Sep 9, 2014
Priority date	—
Expiry date	Oct 15, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG07B15/063
WIPO fieldControl
WIPO sectorInstruments

Abstract

A beacon with a transceiver for radio communication with vehicle OBUs of a road toll system, wherein the transceiver has a directional antenna and is configured to communicate wirelessly with OBUs on a selected channel directed via the directional antenna wherein the transceiver is additionally equipped with an omnidirectional antenna and is configured to transmit, before the beginning of a directional radio communication, by means of the omnidirectional antenna a channel reservation message and/or to check, before the beginning of a directional radio communication, by means of the omnidirectional antenna whether the selected channel is free.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.