Baffle vibration reducing
US8396240B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 19, 2011 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Oct 12, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A first electro-acoustic transducer and a second electro-acoustic transducer are supported by a housing attached to a baffle to form an asymmetric acoustical system. An equalizer receives an input signal and generates an equalized signal which is transmitted to the second electro-acoustic transducer. The equalizer is configured to generate the equalized signal such that a net mechanical force acting on the baffle, generated by the first electro-acoustic transducer in response to the input signal and by the second electro-acoustic transducer in response to the equalized signal, is less than the net mechanical force that would be generated if the equalized signal were unchanged in magnitude and equal or opposite in phase to the input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.