Integrated multimedia terminal system and control method thereof
An integrated multimedia system and a control method are provided, in which, when a USB port is reset during a misrecognition and malfunction of a USB connected to a port of an integrated multimedia terminal integrally provided with an SD slot, an SD slot is prevented from being reset to improve the stability and quality of an AVN system. The system includes an integrated multimedia terminal including a USB port for electrical connection of a USB and an SD slot for electrical connection of an SD card. An audio video navigation (AVN) controller detects the SD card and the USB, obtains data of the SD card and the USB and is connected to the integrated multimedia terminal. A hub electrically connects the SD slot and the USB port to the AVN controller and an auxiliary controller operates the USB port in response to a control signal transmitted via the hub.
1. An integrated multimedia terminal system, comprising:
an integrated multimedia terminal including a universal serial bus (USB) port for electrical connection of a USB and a secure digital (SD) slot for electrical connection of an SD card;
an audio video navigation (AVN) controller configured to detect the SD card and the USB and obtain data of the SD card and the USB, wherein the AVN controller is connected to the integrated multimedia terminal;
a hub configured to electrically connect the SD slot and the USB port to the AVN controller; and
an auxiliary controller configured to reset and reactivate the USB port in response to a reset command signal for resetting the USB port received from the AVN controller, transmitted via the hub,
wherein the auxiliary controller is connected between the hub and the USB port to independently operate the USB port separately from the SD slot,
wherein the AVN controller is configured to receive SD data from the SD slot without conversion to USB protocols, and
wherein the controller is configured to determine an object to which the reset command for resulting the USB port is to be transmitted.
2. The integrated multimedia terminal system of claim 1 , wherein, when transmitting the reset command signal for resetting the USB port to the hub, the AVN controller is configured to transmit the reset command signal received by the hub to the auxiliary controller.
3. A method of controlling an integrated multimedia terminal system, the method comprising:
connecting, by audio video navigation (AVN) controller, a universal serial bus (USB) to a USB port of an integrated multimedia terminal;
determining by the AVN controller whether the USB port is activated;
transmitting, by the AVN controller, a reset command signal for resetting the USB port to an auxiliary controller via a hub when the USB port is inactivated;
determining, by the auxiliary controller, an object to which the reset command for resetting the USB port is to be transmitted; and
resetting and reactivating, by the auxiliary controller, the USB port by supplying a bus voltage to the USB port in response to the reset command signal received by the auxiliary controller via the hub,
wherein the auxiliary controller is connected between the hub and the USB port to independently operate the USB port separately from a secure digital (SD) slot provided to the integrated multimedia terminal, wherein SD data is received from the SD slot without conversion to USB protocols.
4. The method of claim 3 , wherein the reset command signal for resetting the USB port is transmitted to the hub, and simultaneously, the reset command signal received by the hub is transmitted to the auxiliary controller.
5. A non-transitory computer readable medium containing program instructions executed by a controller, the computer readable medium comprising:
program instructions that connect a universal serial bus (USB) to a USB port of an integrated multimedia terminal;
program instructions that determine whether the USB port is activated;
program instructions that transmit a reset command signal for resetting the USB port to an auxiliary controller via a hub when the USB port is inactivated;
program instructions that determine an object to which the reset command for resetting the USB port is to be transmitted; and
program instructions that reset and reactivate the USB port by supplying a bus voltage to the USB port in response to the reset command signal received by the auxiliary controller via the hub,
wherein the auxiliary controller is connected between the hub and the USB port to independently operate the USB port separately from a secure digital (SD) slot provided to the integrated multimedia terminal, wherein SD data is received from the SD slot without conversion to USB protocols.
6. The non-transitory computer readable medium of claim 5 , wherein the reset command signal for resetting the USB port is transmitted to the hub, and simultaneously, the reset command signal received by the hub is transmitted to the auxiliary controller.