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

Claim 8:
9. An in-vehicle device attached to a vehicle comprising:
an authentication unit configured to perform authentication regarding use of the vehicle;
a vehicle-side short-range communication unit configured to cause a short-range communication module to perform short-range wireless communication with a ring-type wearable device that has a ring shape to be worn on a finger of a user, and has unique identification information; and
a reception information acquisition unit configured to acquire information received by a wide area communication module configured to communicate, via a network, with a communication terminal configured to make a reservation for the use of the vehicle, wherein
the short-range communication module is located at a position at which a part of the vehicle operated by the finger of the user is included in a communication range of the short-range wireless communication of the short-range communication module,
when the communication terminal makes the reservation, the reception information acquisition unit acquires, via the network, the identification information received by the wide area communication module from the ring-type wearable device through the communication terminal, and
when the short-range communication module performs the short-range wireless communication with the ring-type wearable device, the authentication unit performs the authentication based on verification between identification information received by the short-range communication module from the ring-type wearable device and the identification information acquired by the reception information acquisition unit.