Automatic gain control for hearing aid
US4718099A · kind A · utility
48Cited by
7References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 29, 1986 |
| Grant date | Jan 5, 1988 |
| Priority date | — |
| Expiry date | Jan 29, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2225/41
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A hearing aid having signal compression characteristics that adapt to the environment of the sound field in which it is operative in which an automatic gain control signal processor is responsive to the magnitude, duration and frequency of the signals in a sound field to control a compression amplifier so that the gain thereof is proportional to said signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.