System and method for multi-function touchpad for human proximity sensing
US12197269B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2022 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Jan 27, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04108
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An information handling system may include a processor, a memory, a radio to transceive wirelessly via an antenna with a wireless network, and a touchpad to receive touch input via a surface of the touchpad when the information handling system is detected in a clamshell configuration, where the touch input is received by a touchpad driver and processed to a corresponding touch input command. An orientation sensor to detect when the information handling system is changed to a tablet configuration and a controller to deactivate the touchpad to receive the touch input for processing to a corresponding touch input command and to activate and operatively couple a metallic layer of the touchpad to a proximity sensor integrated circuit to detect when a user's body is close to the antenna to reduce the power for transmission via the antenna to reduce a specific absorption rate (SAR) level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.