Hybrid circuit for a touch pad keyboard
US10955933B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2019 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Aug 23, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04108
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An input device includes a keyboard system where the keyboard system includes a keyboard transmit line electrically connected to an integrated circuit, a keyboard sense line electrically connected to the integrated circuit, and the keyboard transmit line and the keyboard sense line are selectively connectable through a switch incorporated into the keyboard system. The input device also includes a capacitive touch system where the capacitive touch system includes a touch transmit line electrically connected to the integrated circuit, and a touch sense line electrically connected to the integrated circuit. The keyboard system and the capacitive touch system use at least one common component of the integrated circuit during operation, and the keyboard system and the capacitive touch system are executable simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.