Vehicle-mounted stereophonic sound field reproducer
US7684577B2 · kind B2 · utility
19Cited by
23References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 2001 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Aug 7, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S3/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In correspondence with the left and right external ears of a listener occupying a seat, a three dimensional sound field reproducing unit includes at least more than two speakers disposed on a headrest on the top of a backrest of the seat, and three dimensional signal processing means which converts an output signal from a sound source into a three dimensional sound field signal for supplying it to each of the speakers. Three dimensional sound field with high accuracy and fidelity is reproduced near the external ears of the listener.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.