Patent ID: 9374547
Filing Date: 2016-06-21
CPC Classification: G06F,H04N

Claim Text:
1. A display apparatus, comprising: a communicator configured to communicate with an input apparatus comprising a touch pad, and receive coordinate data corresponding to a dragging trajectory input through the touch pad; a display configured to display the dragging trajectory on a screen based on the received coordinate data; and a controller configured to recognize a character corresponding to the dragging trajectory based on the received coordinate data, and provide a visual feedback adjusting the displayed dragging trajectory according to whether the character is recognized, wherein the controller is further configured to provide a first type of the visual feedback when the dragging trajectory is recognized as the character, and provide a second type of the visual feedback when the dragging trajectory is not recognized as the character, the second type of the visual feedback being different from the first type of the visual feedback, wherein the controller is further configured to determine a type of a function to be performed corresponding to the recognized character, determination being based on a current operation state of the display apparatus without a user manipulation, and wherein the controller is further configured to perform a first function corresponding to the recognized character according to a first operation state of the display apparatus, the first function being one of a channel change, a character input, a menu execution, a mode change, and a volume adjustment, and perform a second function corresponding to the recognized character according to a second operation state of the display apparatus, the second function being another one of the channel change, the character input, the menu execution, the mode change, and the volume adjustment.