Remote control apparatus, control method thereof and electronic system

An electronic system, comprising:

• a remote control apparatus configured to transmit a first Bluetooth packet requesting an electronic apparatus to output a non-audible sound based on a control command being input in a non-paired state;
• and
• an electronic apparatus configured to output a non-audible sound including identification information of an electronic apparatus based on the first Bluetooth packet based on the first Bluetooth packet requesting the output of the non-audible sound being received,
• wherein the remote control apparatus is further configured to:
• obtain the identification information of the electronic apparatus based on the non-audible sound output by the electronic apparatus corresponding to the first Bluetooth packet being received, and
• transmit a second Bluetooth packet including the obtained identification information and a turn-on command to the electronic apparatus, and
• wherein the electronic apparatus is configured to turn on based on a second Bluetooth packet including the identification information being received,
• wherein the remote control is further configured to, based on a plurality of non-audible sounds being received through a microphone after the first Bluetooth packet is transmitted, obtain the identification information of the electronic apparatus from one of the plurality of non-audible sounds based on a time point of receiving each of the non-audible sound of the plurality of non-audible sounds.

A method of controlling a remote control apparatus that controls an electronic apparatus, the method comprising:

• receiving a control command in a state where the remote control apparatus is not paired;
• transmitting a first Bluetooth packet requesting the electronic apparatus to output a non-audible sound;
• receiving the non-audible sound output by the electronic apparatus corresponding to the first Bluetooth packet;
• obtaining identification information of the electronic apparatus based on the non-audible sound;
• and
• transmitting a second Bluetooth packet including the obtained identification information and a turn-on command,
• wherein the receiving comprises receiving a plurality of non-audible sounds after transmitting the first Bluetooth packet, and
• wherein the obtaining comprises obtaining the identification information of the electronic apparatus from one of the plurality of non-audible sounds based on a time point of receiving each of the non-audible sound of the plurality of non-audible sounds.