Dual-coil (differential drive) tactile transducer
US10609488B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 2018 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | Sep 28, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In at least one embodiment, a tactile transducer including a housing, a first voice coil and a magnetic assembly is provided. The first voice coil includes an electrically conductive wire being orientated in a first winding direction to generate a first magnetic field. The magnetic assembly is positioned within the housing. The magnetic assembly is configured to move within the housing to generate a tactile output and to repel against the first voice coil based on a polarity of the first magnetic field as the magnetic assembly moves toward the first voice coil to prevent contact of a first portion of the magnetic assembly with a first side of the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.