Motorized scroll wheel for an input device
US12379793B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 29, 2024 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Feb 29, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05G2700/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A peripheral device may include a body. The device may include a scroll wheel rotatably coupled with the body. The scroll wheel may include a ferromagnetic rotor. The rotor may be generally annular and may define an open interior. The rotor may define a first plurality of teeth arranged about a periphery of the open interior. The device may include a stator disposed within the open interior. The stator may define a second plurality of teeth that are alignable with the first plurality of teeth. The stator may include a plurality of electro-permanent magnets. Each of the electro-permanent magnets may be disposed within a conductive coil. The device may include a position sensor that is configured to detect an angular position of the rotor. The device may include control circuitry that controls delivery of current to the electro-permanent magnets of the stator to controls a speed of the scroll wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.