Automatic time domain equalization of audio signals
US4458362A · kind A · utility
80Cited by
11References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 1982 |
| Grant date | Jul 3, 1984 |
| Priority date | — |
| Expiry date | May 13, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G5/165
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
This disclosure concerns an equalizer for an audio reproduction system in which equalization is achieved using a discrete time filter. The filter is preferably implemented with a microprocessor programmed for generating and storing the filter coefficients in accordance with a perceived acoustic test signal reproduced by the system. Following generation and storage of the coefficients, the microprocessor also serves to equalize an input audio signal by convolving the stored coefficients with digitized time samples of the audio input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.