Patent ID: 11886566
Assignee: DENSO CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC G  B  E  H | IPC G  H

Claim 0:
1. A vehicle authentication system comprising:
a ring-type wearable device that has a ring shape to be worn on a finger of a user, has unique identification information, and includes a ring-side short-range communication unit configured to perform short-range wireless communication;
an in-vehicle device that is attached to a vehicle, and includes an authentication unit, a vehicle-side short-range communication unit, and a reception information acquisition unit,
the authentication unit configured to perform authentication regarding use of the vehicle,
the vehicle-side short-range communication unit configured to cause a short-range communication module attached to the vehicle to perform the short-range wireless communication, and
the reception information acquisition unit configured to acquire information received by a wide area communication module attached to the vehicle and configured to communicate via a network; and

a communication terminal that includes a reservation unit, a terminal-side short-range communication unit, and a terminal-side wide area communication unit,
the reservation unit configured to make a reservation for the use of the vehicle,
the terminal-side short-range communication unit configured to perform the short-range wireless communication, and
the terminal-side wide area communication unit configured to communicate via the network, wherein

when the ring-side short-range communication unit performs the short-range wireless communication with the terminal-side short-range communication unit, the ring-side short-range communication unit transmits the identification information to the terminal-side short-range communication unit by the short-range wireless communication,
when the reservation unit makes the reservation, the terminal-side wide area communication unit transmits the identification information to the wide area communication module via the network,
the short-range communication module is located at a position at which a part of the vehicle operated by a finger of the user is included in a communication range of the short-range wireless communication of the short-range communication module,
when the ring-side short-range communication unit performs the short-range wireless communication with the short-range communication module, the ring-side short-range communication unit transmits the identification information to the short-range communication module by the short-range wireless communication, and
the authentication unit performs the authentication based on verification between the identification information received by the short-range communication module and the identification information acquired by the reception information acquisition unit.