Electronic device, communication control method of electronic device, and information terminal device
AssigneeAlpine Electronics, Inc.
InventorTakashi Yoshinaga
Life of this patent
Estimating the term…
Abstract
An electronic device includes a connection unit that enables a USB connection to a smartphone, a normal communication mode in which communication is performed by using a device class prepared in advance in the smartphone, a request unit that makes a request for switching to a unique communication mode, a search unit that searches for a device class usable in the normal communication mode after the request for switching to the unique communication mode has been made, a determination unit that determines, on the basis of a search result, whether or not a disadvantageous change has occurred in the normal communication mode, and a reset unit that resets the USB connection when it is determined that a disadvantageous change has occurred.
Claims15
An electronic device that is connectable to an information terminal device, the electronic device comprising:
- a connection unit that enables a USB connection to the information terminal device;
- a first communication mode in which communication with the information terminal device is performed by using a device class prepared in advance in the information terminal device;
- a request unit that makes a request to the information terminal device for switching to a second communication mode which is different from the first communication mode;
- a search unit that searches for a device class usable in the first communication mode after the request for switching to the second communication mode has been made;
- a determination unit that determines, on the basis of a search result of the search unit, whether or not a disadvantageous change has occurred in the first communication mode;
- and
- a reset unit that enables a reset of the connection unit when the determination unit determines that a disadvantageous change has occurred.
A communication control method of an electronic device that is connectable to an information terminal device, the communication control method comprising the steps of:
- making a USB connection to the information terminal device;
- communicating with the information terminal device by using a device class prepared in advance in the information terminal device in a first communication mode;
- making a request to the information terminal device for switching to a second communication mode which is different from the first communication mode;
- searching for a device class usable in the first communication mode after making the request for switching to the second communication mode;
- determining, on the basis of a search result, whether or not a disadvantageous change has occurred in the first communication mode;
- and
- enabling a reset of the USB connection when it is determined that a disadvantageous change has occurred.
An information terminal device that is connectable to an electronic device, the information terminal device comprising:
- a connection unit that enables a USB connection to the electronic device;
- a first communication mode in which communication with the electronic device is performed by using a device class prepared in advance;
- a second communication mode that enables communication in the second communication mode in response to a request from the electronic device for switching to the second communication mode which is different from the first communication mode;
- a providing unit that provides, to the electronic device, in response to the request for switching to the second communication mode, alternative connection information regarding an alternative connection which is able to be made;
- and
- a communication unit that enables communication using the first communication mode and communication using an alternative connection unit between the information terminal device and the electronic device after the connection unit has been reset.
Dependencies are inferred from the claim text.