Rate matching for a stimulating medical device
US8417349B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 13, 2010 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Nov 2, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36038
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and systems are disclosed for rate matching in a stimulating medical device, such as a cochlear implant or an auditory brain stimulator. In embodiments, the stimulating medical device applies a fast Fourier transform (FFT) at an analysis rate to the received signal to obtain a plurality frequency bin output signals. The stimulating medical device then applies a rate matching through interpolation function to the frequency bin output signals to match the stimulation rate for the stimulating medical device. This rate matching through interpolation function may apply a common interpolation filter to each frequency bin output to obtain a plurality of outputs distributed in time across the time period between executions of the FFT. The values of the frequency bin output signals at the time most closely matching the time for which stimulation is to be applied may then be selected and used in applying the stimulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.