×

Communication system, vehicle-mounted terminal, roadside device

  • US 9,135,820 B2
  • Filed: 06/20/2014
  • Issued: 09/15/2015
  • Est. Priority Date: 05/24/2010
  • Status: Active Grant
First Claim
Patent Images

1. A vehicle comprising:

  • a first terminal configured to transmit and receive information from one of a roadside device and a second terminal mounted to another vehicle, the first terminal comprising;

    a communication control processing portion configured to perform a process to communicate with one of the roadside device and the second terminal;

    a storage portion configured to store a first list of vehicle-mounted terminals having valid certificates according to place and time and a second list of vehicle-mounted terminals having invalidated certificates;

    a signature generation/verification portion configured to;

    omit certificate verification and discard a message received by the communication control processing portion if a sender of the massage is in the second list; and

    omit certificate verification and verify a signature of a message received by the communication control processing portion if a sender of the massage is in the first list; and

    a processing portion configured to;

    confirm an effective place and an effective time in the first list and the second list, anddelete the first list and the second list if the first terminal exists outside the effective place and/or exceeding the effective time.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×