Supersonic signal linearizes loudspeaker operation
US4074070A · kind A · utility
19Cited by
5References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1975 |
| Grant date | Feb 14, 1978 |
| Priority date | — |
| Expiry date | Sep 29, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2400/09
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A loudspeaker driver system linearizes loudspeaker operation by superimposing a high frequency (supersonic) signal on the low frequency (audio) signal. Features include a special crossover network for a multispeaker system, and an acoustic filter formed of perforated discs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.