Multi-frequency system and method for enhancing auditory stimulation and the like
US4284856A · kind A · utility
110Cited by
3References
22Claims
0Family size
Inventors
Key dates
| Filing date | Sep 24, 1979 |
| Grant date | Aug 18, 1981 |
| Priority date | — |
| Expiry date | Sep 24, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/903
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A plurality of carrier signals are modulated by pulses corresponding to signals in audio frequency bands. The carrier signals are transmitted to a receiver having independent channels for receiving and demodulating the transmitted signals. The detected pulses are applied to electrodes on a prosthetic device implanted in the cochlea with the electrodes selectively positioned in the cochlea to stimulate regions having a desired frequency response. The pulses have a frequency which corresponds to the frequency of signals in an audio band and a pulse width which corresponds to the amplitude of signals in the audio band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.