Vehicular audio system including a headliner speaker, electromagnetic transducer assembly for use therein and computer system programmed with a graphic software control for changing the audio system's signal level and delay
US7853025B2 · kind B2 · utility
9Cited by
20References
60Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2005 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Oct 14, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/05
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A vehicle overhead audio system, an electromagnetic transducer assembly for use therein and a computer system programmed with a graphic software control for changing the audio system's signal level and delay are provided where a headliner of the vehicle is a loudspeaker of the system thereby replacing many other loudspeakers and being invisible to the occupants. The headliner is driven in multiple zones that effect proper imaging for all occupants. Supplemental high frequency and subwoofer speakers and signal processing circuitry are included in one aspect of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.