Ultrasonic touch device and MEl'hod, display device
US11221713B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 7, 2018 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | Apr 26, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04101
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to an ultrasonic touch device and a method. The ultrasonic touch device is disposed at a periphery of a display area of an electronic equipment. The ultrasonic touch device includes an ultrasonic ranging module. The ultrasonic ranging module includes a plurality of ultrasonic ranging units detected. The ultrasonic touch device includes a first position determining unit configured to determine a distance between a touch object and the ultrasonic ranging module, and determine a position of the touch object in a first coordinate direction of the display area according to the distance. The ultrasonic touch device includes a second position determining unit configured to determine a position of the touch object in a second coordinate direction of the display area according to a position of an ultrasonic ranging unit that receives the reflected ultrasonic waves in the ultrasonic ranging module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.