Patent ID: 9727233
Date: 2017-08-08
CPC Classifications: G06F

Claim:
1. A touch device, comprising: at least two image capturing units, respectively configured in different corners of a touch plane, wherein at least one light-reflected object is configured around the touch plane; and a processing unit, coupled to the at least two image capturing units, wherein the at least two image capturing units emit a detecting signal along the touch plane, and the processing unit detects a reflected signal reflected from the detecting signal through the image capturing units, wherein when the touch device is operated in a touch-lock mode, the processing unit detects the reflected signal through the at least two image capturing units, so as to receive a first gesture performed on the touch plane, and determines whether the first gesture matches a first specific gesture, and when the first gesture matches the first specific gesture, the processing unit controls the touch device to operate in a touch-on mode, wherein when the touch device is operated in the touch-on mode, the processing unit provides touch information, and when the touch device is operated in the touch-lock mode, the processing unit does not provide the touch information, wherein the processing unit analyses the reflecting signal to obtain a number of a plurality of blocking points and a plurality of positions of the blocking points on the touch plane, so as to obtain the first gesture, and wherein the processing unit determines whether the first gesture is performed by a single hand by determining whether a first ratio between a distance between any two of the blocking points and a first side length of the touch plane is smaller than a first predetermined ratio, determining whether a second ratio between the distance and a second side length of the touch plane is smaller than a second predetermined ratio, and determining whether the distance complies with a reasonable range performed by the single hand according to the first ratio and the second ratio, so as to determine whether the first gesture matches the first specific gesture.