Electronic device with loudspeaker module
US11570532B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2020 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Sep 24, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electronic device includes an enclosure defining a chamber and a first output port communicating the chamber with outside of the enclosure; a loudspeaker module disposed within the chamber. The loudspeaker module includes a first front cavity in communication with the first output port, a second front cavity acoustically connected with an inside space of the enclosure, a rear cavity, a transducer disposed between the first front cavity and the rear cavity, and a first passive radiator disposed between the second front cavity and the rear cavity. The passive radiator is capable of radiating low-frequency sound to the inside space of the enclosure via the second front cavity and an inside port or a second passive radiator. Then, the low-frequency sound re-radiates through surfaces of the enclosure and possible leaks in the enclosure to the outside environment. The low-frequency output is boosted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.