Perforated phase alignment tweeter screen
US10003869B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2016 |
| Grant date | Jun 19, 2018 |
| Priority date | — |
| Expiry date | Jan 4, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A protective screen for a diaphragm of a loudspeaker comprises a first side and a second side. The screen comprises a perforated region and an imperforated region. The perforated region comprises a first perforation having a first size and a second perforation having a second size, each perforation passing through the first side and the second side of the screen, and each perforation allowing sound waves radiated from a first portion of the diaphragm to pass through the screen. The imperforated region suppresses sound waves radiated from a second portion of the diaphragm. The first perforation is more adjacent to the imperforated region than the second perforation, and wherein the second size of the second perforation is bigger than the first size of the first perforation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.