Method and apparatus for envelope detection and enhancement of pitch cue of audio signals
US8135152B2 · kind B2 · utility
3Cited by
5References
27Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 23, 2009 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Mar 22, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R25/606
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for detecting an envelope of an audio signal, and a method and apparatus for enhancing the pitch cue of an audio signal perceived by a cochlear implant patient where the audio signal is processed and input to an implant device of the recipient. The methods and apparatuses use techniques such as filtering, rectifying, detecting peak values, sampling, resetting, comparing and multiplying various signals to detect the envelope or enhance the pitch cue of the audio signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.