Methods and apparatus for supplying power to touch input devices in a touch sensing system
US7113175B2 · kind B2 · utility
25Cited by
15References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2001 |
| Grant date | Sep 26, 2006 |
| Priority date | — |
| Expiry date | May 23, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/046
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for transmitting power to active touch stimulating devices associated with a touch sensing apparatus. In this invention four methods of providing power supply to the touch-input device are presented. These methods are: EM induction transmission using a single loop antenna, EM induction transmission using a conductive layer, acoustic transmission through air, and acoustic transmission through an acoustic conductive layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.