ELECTRONIC DEVICE, ELECTRONIC DEVICE CONTROL METHOD, AND RECORDING MEDIUM
FIG1 is a diagram schematically illustrating an example system in which an electronic apparatus is used  FIG1 is a diagram schematically illustrating an example system in which an electronic apparatus is used
FIG1 is a diagram illustrating an example system in which an electronic apparatus 10 is used. The electronic apparatus 10 is a portable electronic apparatus, such as a smartphone, for instance. The electronic apparatus 10 can be used in intelligent transport systems (ITS), specifically, in a safe-driving assistance communication system 1. The safe-driving assistance communication system 1 is called a safe-driving assistance system or a safe-driving assistance wireless system. As illustrated in FIG1, the safe-driving assistance communication system 1 enables mutual wireless communication between each roadside unit 5 at an intersection 2 or other places, each vehicle 6 (e.g., an automobile) traveling along a roadway 7, and the electronic apparatus 10 carried by each user 9 who is a pedestrian. The roadside unit 5, the vehicle 6, and the electronic apparatus 10 can thus exchange information with one another. The multiple vehicles 6 can perform wireless communication with one another. The vehicles 6 can thus exchange information with one another. The communication between the roadside unit 5 and the vehicle 6, the communication between the vehicles 6, the communication between the roadside unit 5 and the pedestrian's electronic apparatus 10, and the communication between the pedestrian's electronic apparatus 10 and the vehicle 6 are respectively called vehicle-to-roadside-infrastructure communication, vehicle-to-vehicle communication, pedestrian-to-roadside-infrastructure communication, and vehicle-to-pedestrian communication.  FIG1 is a diagram illustrating an example system in which an electronic apparatus 10 is used. The electronic apparatus 10 is a portable electronic apparatus, such as a smartphone, for instance. The electronic apparatus 10 can be used in intelligent transport systems (ITS), specifically, in a safe-driving assistance communication system 1. The safe-driving assistance communication system 1 is called a safe-driving assistance system or a safe-driving assistance wireless system. As illustrated in FIG1, the safe-driving assistance communication system 1 enables mutual wireless communication between each roadside unit 5 at an intersection 2 or other places, each vehicle 6 (e.g., an automobile) traveling along a roadway 7, and the electronic apparatus 10 carried by each user 9 who is a pedestrian. The roadside unit 5, the vehicle 6, and the electronic apparatus 10 can thus exchange information with one another. The multiple vehicles 6 can perform wireless communication with one another. The vehicles 6 can thus exchange information with one another. The communication between the roadside unit 5 and the vehicle 6, the communication between the vehicles 6, the communication between the roadside unit 5 and the pedestrian's electronic apparatus 10, and the communication between the pedestrian's electronic apparatus 10 and the vehicle 6 are respectively called vehicle-to-roadside-infrastructure communication, vehicle-to-vehicle communication, pedestrian-to-roadside-infrastructure communication, and vehicle-to-pedestrian communication.
diagram
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['1. An electronic apparatus comprising: a communication unit configured to perform wireless communication with an external device and a vehicle and; a controller configured to, (i) upon receiving, via the communication unit, a reception signal transmitted from the external device through one-to-many communication, make a determination based on the reception signal, about whether a first distance between the electronic apparatus and the external device is shorter than a distance reference value, and (ii) upon determining that the first distance is shorter than the distance reference value, perform a restricting process of restricting transmission of a transmission signal via the communication unit.']