Abstract: A concierge device comprises: a camera for obtaining image information of an utterer located within a valid distance from the concierge device; a microphone for receiving speech information of the utterer; a speaker for outputting response information corresponding to the speech information of the utterer; a memory for storing a plurality of corpora; an artificial intelligence unit that includes a natural language processing component to recognize the speech information of the utterer through natural language understanding and generate a natural language sentence including the response information corresponding to the recognized speech information; and a control unit that detects at least one of the plurality of corpora, which matches features of the utterer detected through the image information of the utterer, controls the artificial intelligence unit to generate the natural language sentence on the basis of the detected corpus.

Abstract: Provided are a mobile terminal and a control method therefor. The mobile terminal includes: a touchscreen disposed on one side of a main body of the terminal; a push key mounted on the main body to receive a push input; and a controller that displays virtual keys associated with the settings or control of the terminal on the touchscreen when the push key is pushed, and executes functions associated with a speech recognition mode when a set period of time elapses without at least one touch input on the virtual keys being sensed.

Abstract: Provided are a mobile terminal and a control method therefor. The mobile terminal includes: a touchscreen disposed on one side of a main body of the terminal; a push key mounted on the main body to receive a push input; and a controller that displays virtual keys associated with the settings or control of the terminal on the touchscreen when the push key is pushed, and executes functions associated with a speech recognition mode when a set period of time elapses without at least one touch input on the virtual keys being sensed.