Patent ID: 11962832
Assignee: LG ELECTRONICS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A remote control device for transmitting and receiving a control signal to and from a display device, comprising:
a Bluetooth circuit configured to establish Bluetooth connection with the display device;
an infrared (IR) circuit configured to output an IR signal; and
a controller configured to:
receive IR information related to controlling an external device connected to the display device;
receiving an input to a button of the remote control device;
determining whether the Bluetooth connection is established with the display device;
based on a determination that the Bluetooth connection with the display device is not established, outputting a first IR signal for controlling the external device corresponding to the input button based on determining that a current video input mode of the display device is an external device input mode using a button input history stored in a memory of the remote control device; and
based on a determination that the Bluetooth connection with the display device is established:
transmitting, to the display device via the Bluetooth connection, information on the input button;
receiving, from the display device via the Bluetooth connection, an IR key corresponding to the input button; and
outputting a second IR signal according to the received IR key for controlling the external device when the current video input mode of the display device is the external device input mode.