Touch Identification Device on the Basis of Doppler Effect, Touch Identification Method on the Basis of Doppler Effect and Touch Screen

摘要

The present invention discloses a touch identification device on the basis of Doppler effect, a touch identification method on the basis of Doppler effect and a touch screen, wherein the touch identification device comprises: a first transceiving module used for transmitting a first detection wave along a first direction and receiving a first feedback wave formed from the first detection wave after being reflected by a touch body; a second transceiving module used for transmitting a second detection wave along a second direction and receiving a second feedback wave formed from the second detection wave after being reflected by the touch body; and a calculation module used for calculating a moving speed and a moving direction of the touch body at the touch point according to the first detection wave, the first feedback wave, the second detection wave and the second feedback wave.