Patent ID: 8493363
Filing Date: 2013-07-23
Classification: G06F

Abstract:
1. A touch device comprising: a display unit; a first infrared emitting unit arranged on a first side of the display unit, the first infrared emitting unit comprising a plurality of first infrared emitters, each of the first infrared emitters to emit an infrared ray; a first infrared receiving unit arranged on the first side of the display unit, the first infrared receiving unit comprising a plurality of first infrared receivers, each of the first infrared receivers corresponding to one of the first infrared emitters, each of the first infrared receivers comprising an identification identifying itself, each of the first infrared receivers to receive the infrared rays emitted by its corresponding first infrared emitter, and generate an electrical signal comprising the identification of the first infrared receiver when receiving an infrared ray emitted by its corresponding first infrared emitter, each of the first infrared receivers corresponding to one set of coordinates; a second infrared emitting unit arranged on a second side of the display unit adjacent to the first side of the display unit, the second infrared emitting unit comprising a plurality of first infrared emitters, the infrared emitters to emit infrared rays; a second infrared receiving unit arranged on the second side of the display unit, the second infrared receiving unit comprising a plurality of second infrared receivers, each of the second infrared receivers corresponding to one of the second infrared emitters, each of the second infrared receiver comprising an identification identifying itself, each of the second infrared receivers to receive the infrared rays emitted by its corresponding second infrared emitter, and generate an electrical signal comprising the identification of the second infrared receiver when receiving an infrared ray emitted by its corresponding second infrared emitters, each of the second infrared receivers corresponding to one set of coordinates; a storage unit storing a table recording a relationship between the identification of each of the first infrared receivers and the corresponding set of coordinates of the first infrared receiver, and between the identification of each of the second infrared receivers and the corresponding set of coordinates of the second infrared receiver; a plurality of motors, each of the motors electrically connected to one of the first infrared emitters and its corresponding first infrared receiver to drive the first infrared emitter and its corresponding first infrared receiver to rotate, or connected to one of the second infrared emitters and its corresponding second infrared receiver to drive the second infrared emitter and its corresponding second infrared receiver to rotate; and a processor electrically connected to each of the motors, each of the first infrared receivers, and each of the second infrared receivers, the processor to control the motors to drive the first infrared emitters, the second infrared emitters, the first infrared receivers, and the second infrared receivers to rotate, wherein, when the electrical signal from one of the first infrared receivers and the electrical signal from one of the second infrared receivers are simultaneously received, the processor determines the corresponding set of coordinates of the first infrared receiver according to the identification in the electrical signal from the first infrared receiver and the table, the set of coordinates of the second infrared receiver according to the identification in the electrical signal from the second infrared receiver and the table, and a set of coordinates of a touch spot formed by the infrared rays from the first infrared receiver and the second infrared receiver according to the sets of coordinates of the first infrared receiver and the second infrared receiver, determines an icon corresponding to the touch spot, and further execute the corresponding function according to the touch spot.