Speaker, television provided with the speaker and multimedia device
US10291984B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 18, 2015 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Jun 18, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/15
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A speaker, a television provided with the speaker and a multimedia device are provided. The speaker includes a box body and a plurality of transducer units installed within the box body by means of parallel connection: front sound cavities of the plurality of transducer units are independent of each other, respectively; and the plurality of transducer units share one back sound cavity. The speaker possesses such advantages that it has a high sound pressure level output and a smaller power consumption, it is usable to reduce the back-cavity acoustic resistance, and it is usable to raise the lower frequency limit in the low frequency range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.