Method of and arrangement for linearizing the frequency response of a loudspeaker system
US5068903A · kind A · utility
21Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 27, 1989 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | Oct 27, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R3/002
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The frequency response of a loudspeaker system can be linearized in a simple manner by negative voltage feedback. However, pure negative voltage feedback has the disadvantage of compensating mechanical resonance phenomena of the loudspeaker system only incompletely. A method and an arrangement are proposed in which the feedback signal is derived from the impedance of the loudspeaker system. The measure of the impedance of the loudspeaker system is the current flowing through the loudspeaker system. The signal corresponding to the impedance is filtered and fed back to the input of the power amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.