A mobile terminal device is operated by a battery, performs wireless communication with a predetermined associated vehicle, and is available as an electronic key for the vehicle. The mobile terminal device includes a display unit including an electronic paper, and a terminal controller configured to display a predetermined code for unlocking the vehicle on the electronic paper when a remaining amount of the battery is equal to or smaller than a predetermined value.
MOBILE TERMINAL DEVICE AND VEHICLE CONTROL SYSTEM
2020-04-16
Patent
Electronic Resource
English
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