Arrangement to correct the linear and nonlinear transfer behavior or electro-acoustical transducers
US5438625A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 9, 1992 |
| Grant date | Aug 1, 1995 |
| Priority date | — |
| Expiry date | Apr 9, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R3/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention regards an arrangement to correct the linear and nonlinear transfer behavior of electro-acoustical transducers, consisting of an electro-acoustical transducer, a distortion-reduction network connected to its input terminals, and a support system to fit the distortion-reduction network to the transducer. The distortion-reduction network shows nonlinear transfer characteristics obtained from modelling the transducer and thus changes the electrical signal such that the nonlinear effects of the network compensate for the nonlinear behavior of connected transducer. The result is an overall system with reduced distortion and improved linear transfer behavior. A fitting technique and system is used to change the parameters of the electrical network automatically to fit the actual transfer characteristics of the distortion reduction system to the transducer. Several mechanisms, unique to each transducer, are responsible for generation of nonlinear distortion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.