Audio apparatus having electronic graphic equalizer
US4903307A · kind A · utility
21Cited by
3References
6Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jun 14, 1989 |
| Grant date | Feb 20, 1990 |
| Priority date | — |
| Expiry date | Jun 14, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G5/025
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An audio apparatus includes an electronic graphic equalizer, in which a plurality of frequency characteristics corresponding to various space configurations are stored preliminarily and a plurality of frequency characteristics corresponding to various types of music are also stored preliminarily. Suitable frequency characteristics are selected from these two groups of frequency characteristics according to a specific spatial configuration and a specific music to be reproduced and combined to obtain a frequency characteristics suitable for the configuration and the music.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.