Signal limit based on prediction model
US11528552B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 15, 2021 |
| Grant date | Dec 13, 2022 |
| Priority date | — |
| Expiry date | Nov 15, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R27/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Example techniques may involve controlling a passive radiator. An implementation may include a device receiving, via a network interface, audio content and generating an audio signal representing the audio content. Generating the audio signal involves modifying portions of the audio content to limit excursion of the speaker driver to less than an excursion limit when a forward prediction model indicates that the portions of the audio content are predicted to cause the speaker driver to move beyond the excursion limit. While playing back the generated audio signal via the audio stage, the device detects, via a sensor, clipping of the speaker driver and generates a feedback signal based on the detected clipping of the speaker driver. The device adjusts the forward prediction model based on the generated feedback signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.