US Patent 11358285 Robot and method of recognizing mood using the same

A robot includes an output unit including at least one of a display or a speaker, a camera, and a processor configured to control the output unit to output content, to acquire an image including a plurality of users through the camera while the content is output, to determine a mood of a group including the plurality of users based on the acquired image, and to control the output unit to output feedback based on the determined mood.