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

Claim 6:
7. A display system comprising:
a display device; and
a remote control device configured to transmit and receive a control signal to and from a display device,
wherein the remote control device is configured to:
receive IR information related to controlling an external device connected to the display device;
receive an input to a button of the remote control device;
determine whether a Bluetooth connection is established with the display device; and
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,
wherein based on a determination that the Bluetooth connection is established:
the remote control device is further configured to transmit, to the display device via the Bluetooth connection, information on the input button;
the display device is further configured to transmit, to the remote control device via the Bluetooth connection, an IR key corresponding to the input button; and
the remote control device is further configured to output 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.