Patent ID: 8373656
Filing Date: 2013-02-12
Classification: G06F

Abstract:
1. A finger pointing apparatus, comprising: at least one pressure sensor fixed on a hand, configured to generate a trigger signal when pressure is produced by a finger contacting an external object, wherein the external object is any object which enables the pressure sensor to sense pressure; at least one electromagnetic wave transmitter corresponding to the at least one pressure sensor, in data communication with the pressure sensor, fixed on the hand, and configured to transmit a first electromagnetic wave after receiving the trigger signal; at least two electromagnetic wave receivers arranged at fixed positions with respect to each other, each receiver configured to receive the first electromagnetic wave and configured to generate a second electromagnetic wave and a third electromagnetic wave; a microprocessor in data communication with the at least two electromagnetic wave receivers, configured to calculate coordinate values of a position pressed by the finger based on the second electromagnetic wave and the third electromagnetic wave and configured to output the coordinate values; and a switch mounted on the finger pointing apparatus and configured to enable the finger pointing apparatus to switch between a mouse function and a keyboard function, wherein when the finger pointing apparatus is used as the mouse function, it controls movement of a cursor, and when the finger pointing apparatus is used as the keyboard function, it is used for inputting letters, numbers or symbols directly, wherein different positions of the finger in a certain region represent different letters, numbers or symbols, and the letters, numbers or symbols input on a screen are determined according to the position on which the finger presses.