Back to results
US 2019/0156606 A1Published application
Portable terminal device and authentication system
AssigneeToyota Jidosha Kabushiki Kaisha
InventorHiroki OKADA
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeToyota Jidosha Kabushiki Kaisha
InventorHiroki OKADA
Estimating the term…
A portable terminal device of an authentication system includes a first communication unit that performs wireless communication with a vehicle-mounted device by using a first frequency band, a second communication unit that performs ultra-wideband wireless communication using a second frequency band, a notification unit configured to perform a predetermined notification operation, and a first controller that controls the first communication unit, the second communication unit, and the notification unit. The first controller controls the first communication unit to perform wireless communication for authentication with the vehicle-mounted device, and controls the second communication unit to perform wireless communication for measuring a distance from the portable terminal device to the vehicle-mounted device. The first controller causes the notification unit to perform a predetermined notification operation when the first communication unit receives a radio signal indicating that distance measurement fails from the vehicle-mounted device.
An apparatus mounted on a vehicle, which communicates with a portable device, the apparatus comprising:
A portable device, which communicates with an apparatus mounted on a vehicle, the portable device comprising:
A method comprising:
A non-transitory computer readable medium storing a program that, when executed by a computer, causes the computer to execute a process, the process comprising:
A method comprising:
A non-transitory computer readable medium storing a program that, when executed by a computer, causes the computer to execute a process, the process comprising:
Dependencies are inferred from the claim text.