Touch identification device on the basis of doppler effect, touch identification method on the basis of doppler effect and touch screen
US9760202B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2014 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Nov 23, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/046
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.