| CPC H04N 21/42222 (2013.01) [G08C 19/28 (2013.01); H04N 21/42203 (2013.01); H04N 21/42221 (2013.01)] | 16 Claims | 

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                [  21. A display apparatus which is operable to communicate with a first device, the display apparatus comprising: 
            a communicator; and 
                a controller configured to: 
                based on a user voice input received from the first device through the communicator, obtain control command information corresponding to the user voice input for controlling a second device, based on a voice recognition performed with respect to the user voice input, and 
                  control the communicator to transmit a first remote control signal including a control signal corresponding to the obtained control command information to the first device, which when received by the first device, causes the first device to transmit a second remote control signal including a control command for controlling the second device, corresponding to the control signal, to the second device, 
                wherein the controller is configured to control the communicator to transmit the first remote control signal to the first device using a first communication method, 
                wherein the first remote control signal causes the first device to transmit the second remote control signal to the second device using a second communication method, and 
                wherein the second communication method of the first device is different from the first communication method of the first device. ]  
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