Computing device with haptic trackpad
US11768542B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2022 |
| Grant date | Sep 26, 2023 |
| Priority date | — |
| Expiry date | Sep 14, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04105
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Computing devices and methods for adjusting a driving signal for a haptic trackpad are disclosed. In one example, a computing device comprises a trackpad that comprises a printed circuit board. An accelerometer is affixed to the printed circuit board and a haptic actuator is coupled to the trackpad. A memory stores instructions executable by a processor to drive the haptic actuator to cause a first trackpad acceleration. The accelerometer measures the first trackpad acceleration, and an acceleration variance is determined by comparing the first trackpad acceleration to a target acceleration. The acceleration variance is used to adjust a driving signal for the haptic actuator to an adjusted driving signal. The haptic actuator is driven with the adjusted driving signal to cause a second trackpad acceleration different from the first trackpad acceleration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.