Touch sensing system
US12340053B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2023 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Aug 14, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a touch sensing system, including a detected capacitor Cm. A transmitting electrode and a receiving electrode of a sensor are arranged at two ends of the detected capacitor Cm, and one end of the detected capacitor Cm corresponding to the receiving electrode is connected to a modulation module via a GM module. An excitation signal is input from the transmitting electrode. The GM module converts a charge transferred to the receiving electrode into a current and outputs same to the modulation module, and the modulation module performs integration and modulation according to the current to obtain an output parameter characterizing the detected capacitor Cm. Provided is a touch sensing system to reduce chip area and power consumption and improve the reliability of touch sensing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.