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 schematically illustrating an example system in which an electronic apparatus is used  FIG15 is a diagram schematically illustrating an example configuration of the controller that sets a distance reference value
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.  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.  FIG15 is a diagram schematically illustrating an example configuration of the controller 100 that sets the distance reference value Dref based on the vehicle information. The controller 100 comprises an information selector 106a and the multiplier 105a. The information selector 106a receives the vehicle information. In the example of FIG15, the information selector 106a receives the distances D21 and D22. The information selector 106a selects and then outputs the vehicle information that provides the smallest distance reference value Dref. In the example of FIG15, the information selector 106a outputs the distance D21, which is smaller than the distance D22, to the multiplier 105a. The multiplier 105a outputs the product of the distance D21 and predetermined value K1 as the distance reference value Dref, as earlier described.
diagram
1
system
100
controller
4
traffic light
2
restriction notification information
15
microphone hole
3
crosswalk Level
['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.']