Device and method for detecting capacitive touch signal
US10545619B2 · kind B2 · utility
1Cited by
0References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 23, 2016 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Jul 23, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2017/9602
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a device and a method for detecting a capacitive touch signal of a finger of a human body or a touch input means having similar conductive properties to the finger, and relates to a device and a method for detecting a capacitive touch signal, in which alternating driving voltage is applied to one side of a sensing equivalent capacitor formed between a sensing pad and a non-sensing pad, and a touch detection unit detects a voltage difference generated from the sensing pad according to the occurrence or non-occurrence of a touch, thereby determining whether the touch occurs or not.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.