Interactive server, display apparatus, and control method thereof

A display apparatus, comprising:

• an input unit configured to receive a voice command;
• a communication unit configured to send a voice command signal corresponding to the voice command to a server apparatus;
• a display unit configured to display a screen;
• and
• a controller configured to select a target referred to by an indicator based on a display status of objects displayed on the screen of the display unit in response to response information including the indicator and a command word being received from the server apparatus, and perform an operation corresponding to the command word with respect to the selected target.

A control method of an interactive server, the control method comprising:

• receiving a voice command signal including a first command element representing a target and a second command element representing an execution command from a display apparatus;
• extracting, using a processor, an indicator corresponding to the first command element and a command word corresponding to the second command element;
• and
• generating response information corresponding to the voice command signal by combining the extracted indicator and command word, and sending the response information to the display apparatus,
• wherein the first command element is an command element determined based on a displaying status of objects displayed on a screen of the display apparatus.

A control method of a display apparatus, the control method comprising:

• receiving a voice command;
• sending an voice command signal corresponding to the voice command to a server apparatus;
• receiving response information including an indicator and a command word from the server apparatus;
• and
• selecting a target referred to by the indicator based on a displaying status of objects displayed on a screen, and performing, using a processor, an operation corresponding to the command word with respect to the selected target.

A display apparatus comprising:

• a display unit configured to display a screen including a plurality of selectable objects;
• an input unit configured to receive a voice command;
• a communication unit configured to receive response information from an external device in response to receiving the voice command, the response information including a command word that is selected according to the voice command;
• and
• a controller configured to select a target object from among the plurality of selectable objects using the response information received from the external device, and to perform an operation corresponding to the command word with respect to the selected target object.