Speaker for automotive vehicle audio system having a vehicle panel serving as sound-amplifying medium
US4514599A · kind A · utility
61Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1984 |
| Grant date | Apr 30, 1985 |
| Priority date | — |
| Expiry date | Feb 24, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A speaker for use in an automotive vehicle audio system has a vehicle panel oscillating to produce audio frequency sounds. The vehicle panel is driven by a driver of the speaker at a frequency and amplitude corresponding to frequency and amplitude of an audio signal. Such a speaker is especially adapted to reproduce relatively low-frequency sounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.