Speakerphone accessory assembly
US7088838B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2003 |
| Grant date | Aug 8, 2006 |
| Priority date | — |
| Expiry date | Dec 13, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R9/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An acoustic accessory is provided having a loudspeaker and a circuit board disposed therein. An acoustic suspension system is formed within the acoustic accessory by board retention rings disposed within the upper and lower housings of the accessory. The board suspension rings clench the printed circuit board, which includes at least one aperture. Rubber gaskets are coupled to the board retention rings to form an airtight seal. The air mass above the printed circuit board joins with the air mass below the printed circuit board to form a unitary reactance against which the loudspeaker works. The size and number of apertures may be varied in accordance with the acoustic application. Board retention posts optionally seat within notches in the printed circuit board to prevent the printed circuit board from moving laterally. Electrical connections may be made through the printed circuit board into the acoustic chamber, thereby not compromising the airtight seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.