Low pulse rate cochlear implant stimulation in conjunction with a separate representation of fundamental frequencies and voiced/unvoiced distinctions
US9463319B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 10, 2010 |
| Grant date | Oct 11, 2016 |
| Priority date | — |
| Expiry date | Sep 2, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/056
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method is described for generating stimulus signals for an auditory prosthesis system. A high frequency signal conveys higher frequency audio information including exceptionally low rate band-pass envelope characteristics. This high frequency signal represents at least the upper part if not all of the range of frequencies for speech, music, and other sounds that are audible to listeners with normal hearing. A separate low frequency signal is also provided representing lower audio frequency information including periodicity characteristics (voiced/unvoiced or periodic/aperiodic distinctions) and for periodic sounds, fundamental frequency characteristics. The high frequency signal is applied to the auditory system of a patient by an associated high frequency stimulator, and the low frequency signal is applied to the auditory system of the patient by an associated low frequency signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.