Optical-effect touchpad on a steering wheel for finger detection
US10928935B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 4, 2018 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Sep 4, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2360/782
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system for detecting command gestures made by a finger of a motor vehicle driver, including at least one interface pad, a light source that emits an infrared optical beam toward the interface pad, an imaging sensor, in order to capture images steered by the interface pad away from the driver, the interface pad including a base frame and a movable plate that is movable between a rest position and at least one activation position, the base frame including a first inclined edge and the movable plate including a second inclined edge, the first and second inclined edges forming a zone of contrasts of interest as seen by the imaging sensor, and being separated by a space or brought closer together depending on the position of the movable plate, and generating a contrast effect in the images of the interface pad that are captured by the imaging sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.