Wireless ear bud system with pose detection
US12294825B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jan 12, 2023 |
| Grant date | May 6, 2025 |
| Priority date | — |
| Expiry date | Oct 6, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2420/07
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Ear buds may have sensors to gather orientation information such as accelerometer measurements during user movements. A host electronic device may communicate wirelessly with the ear buds and may form part of an ear bud system that supplies the user with coaching and feedback while evaluating user performance of a head movement routine or other exercise routine. During operation, the ear buds may gather accelerometer data in a first reference frame such as a reference frame associated with the ear buds and may use a rotation matrix to rotate the data in the first reference frame into a second reference frame such as a neutral reference frame with a fixed orientation to the earth. The data in the neutral reference frame may be analyzed using a user head pose look-up table to categorize measured user head positions as corresponding to respective user head poses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.