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Road toll system and method

  • US 9,934,619 B2
  • Filed: 03/07/2012
  • Issued: 04/03/2018
  • Est. Priority Date: 03/11/2011
  • Status: Active Grant
First Claim
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1. A road toll system comprising:

  • a vehicle-mounted unit for use in the road toll system, wherein the vehicle-mounted unit comprises a satellite navigation receiver implementing a position tracking function used by a routing system for determining routes taken by a vehicle based on position tracking information; and

    a portable activation device that is not mounted on the vehicle, the portable activation device comprising;

    a transmitter and receiver; and

    a security module, wherein the security module is configured to implement user-personalization data to personalize the vehicle-mounted unit, wherein the user-personalization data is stored in the portable activation device separate from the vehicle-mounted unit, and wherein the security module applies a digital signature to route information received from the vehicle-mounted unit,wherein the road toll system is adapted to establish a wireless communication channel between the security module and the vehicle-mounted unit via the transmitter and receiver;

    wherein the portable activation device is adapted to transmit information concerning an owner of the portable activation device and the digitally signed route information to the vehicle-mounted unit via the wireless communication channel, andwherein the vehicle-mounted unit is adapted to provide information to a billing system to enable identification of the owner of the portable activation device for billing a user of the system in dependence on the road prices incurred based on the routes taken.

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