Speaker systems including forward and backward facing passive radiators
US11368787B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 19, 2019 |
| Grant date | Jun 21, 2022 |
| Priority date | — |
| Expiry date | Aug 19, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S7/301
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A speaker system comprises a first speaker subsystem comprising a first active driver and a first passive radiator that is forward facing; and a second speaker subsystem comprising a second active driver and a second passive radiator that is backward facing. The first speaker subsystem has a corner frequency that is a first predetermined harmonic of the resonance frequency of the first passive radiator, and the first active driver has a resonance frequency that is a second predetermined harmonic of the resonance frequency of the first passive radiator. The second speaker subsystem has a corner frequency that is the first predetermined harmonic of the resonance frequency of the second passive radiator, and the second active driver has a resonance frequency that is the second predetermined harmonic of the resonance frequency of the second passive radiator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.