Angular sensing for optimizing speaker listening experience
US11277706B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2020 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Jun 5, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2400/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Audio speaker angular determination is made using sensor fusion technology involving an accelerometer, gyroscope, and magnetometer (compass). All speakers in an audio system use their magnetometers to determine their orientation relative to magnetic north. A group owner (typically the center channel or sound bar) gathers the orientation information from all speakers in the system. The group owner determines the angle of orientation of all speakers relative to its own orientation. Changes in angular orientation are sensed by the gyroscopes. For example, during calibration, the user can be told to rotate a certain speaker in the system, and the gyroscope measures the change and reports to the group owner. An indication is presented as to whether the new angle is good, or more is required. The gyroscope in combination with the accelerometer senses changes of angular orientation to aim height speakers downward towards the listening position or bottom speakers upward.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.