Abstract: An onboard apparatus comprising a connection portion, a control block, and a bus switch is provided. The connection portion connects with an external device mounted to a vehicle, and includes at least a data terminal to input and output a communication data and a control terminal to output a communication availability signal that indicates communication is available or not. The control block performs data communication with the external device, which is connected to the connection portion. The bus switch, according to a permission signal, changes a non-conduction state to a conduction state of a transmission path from the control block to the data terminal. A signal level of the permission signal varies when an output of the control block is stabilized after the onboard apparatus starts.

Abstract: An onboard apparatus comprising a connection portion, a control block, and a bus switch is provided. The connection portion connects with an external device mounted to a vehicle, and includes at least a data terminal to input and output a communication data and a control terminal to output a communication availability signal that indicates communication is available or not. The control block performs data communication with the external device, which is connected to the connection portion. The bus switch, according to a permission signal, changes a non-conduction state to a conduction state of a transmission path from the control block to the data terminal. A signal level of the permission signal varies when an output of the control block is stabilized after the onboard apparatus starts.

Abstract: An application control system for use in a vehicle includes a current region detector for detecting a current region where the vehicle is operating, an application storage for storing a regional application software in association with a preset region and a control unit for retrieving and executing the regional application software stored in the application storage based on the current region detected by the current region detector. The control unit retrieves and executes the regional application software when the current region is identified as the preset region.

Abstract: An application control system for use in a vehicle includes a current region detector for detecting a current region where the vehicle is operating, an application storage for storing a regional application software in association with a preset region and a control unit for retrieving and executing the regional application software stored in the application storage based on the current region detected by the current region detector. The control unit retrieves and executes the regional application software when the current region is identified as the preset region.