US 9,811,167 B2
Apparatus and method for inputting character based on hand gesture
Yang Keun Ahn, Seoul (KR); and Kwang Mo Jung, Goyang-si (KR)
Assigned to Korea Electronics Technology Institute, Seongnam-si (KR)
Filed by Korea Electronics Technology Institute, Seongnam-si, Gyeonggi-do (KR)
Filed on Aug. 3, 2015, as Appl. No. 14/816,491.
Claims priority of application No. 10-2015-0025806 (KR), filed on Feb. 24, 2015.
Prior Publication US 2016/0246497 A1, Aug. 25, 2016
Int. Cl. G06F 3/01 (2006.01); G06F 3/0489 (2013.01)
CPC G06F 3/017 (2013.01) [G06F 3/04895 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An apparatus for inputting a character based on a hand gesture, the apparatus comprising:
at least one processor to implement:
recognizing hand gestures of a user corresponding to horizontal directions, vertical directions, and diagonal directions; and
controlling a character input according to directions of the recognized hand gestures; and
a display configured to display a character pad for the character input, and display characters input according to the directions of the hand gestures recognized on the character pad,
wherein the character pad comprises a character pad interface in which a starting point of the character input indicating a type of characteristics that is enabled to be input through a currently activated interface is positioned in a central area of the character pad interface, and
wherein the at least one processor activates the character pad interface corresponding to the direction of the hand gestures when a hand gesture of dragging a button of the character pad from the starting point is recognized, the character pad interface comprising a plurality of buttons spaced apart from the starting point located in the central area of the character pad interface, and determines a character that is input based on a final position of a last hand gesture on the activated character pad interface when a hand gesture of returning to the starting point is recognized.