Touch device and touch method
US8493363B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 15, 2011 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Mar 4, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0421
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch method is applied in a touch device. The touch device includes a display unit, first infrared receivers, first infrared emitters, second infrared receivers, second infrared emitters, a storage unit, and motors. The first infrared receivers and the first infrared emitters are arranged on a first side of the display unit, and the second infrared receivers and the second infrared emitters are arranged on a second side of the display unit. The storage unit stores a table recording a relationship between identification and set of coordinates of the infrared receivers. The method includes: controlling motors to drive infrared emitters and infrared receivers to rotate; determining whether electrical signals comprising the identification of one first infrared receiver and one second infrared receiver are simultaneously received; if yes, determining the set of coordinates of the touch spot; determining an icon and determining the corresponding function corresponding to the touch spot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.