Nonlinear control of vented box or passive radiator loudspeaker systems
US10506347B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 17, 2018 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Mar 25, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/2815
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
One embodiment provides a vented box loudspeaker system comprising a speaker driver and a controller configured to receive a source signal for reproduction via the driver, determine a target displacement of the driver and a target sound pressure based on a first physical model of the system, and generate a control voltage based on the target displacement, the target sound pressure, and a second physical model of the system. Another embodiment provides a passive radiator loudspeaker system comprising an active speaker driver and a controller configured to receive a source signal for reproduction via the driver, determine a target displacement of a component based on a first physical model of the system, and generate a control voltage based on the target displacement and a second physical model of the system. In both embodiments, an actual displacement of the driver during the reproduction is controlled based on the generated control voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.