US 12,290,686 B2
Systems and devices for equalizing telemetry signals transmitted by way of a transcutaneous narrowband inductive link
Glen A. Griffith, Newbury Park, CA (US)
Assigned to Advanced Bionics AG, Staefa (CH)
Appl. No. 17/641,694
Filed by Advanced Bionics AG, Staefa (CH)
PCT Filed Sep. 17, 2019, PCT No. PCT/US2019/051426
§ 371(c)(1), (2) Date Mar. 9, 2022,
PCT Pub. No. WO2021/054940, PCT Pub. Date Mar. 25, 2021.
Prior Publication US 2022/0296896 A1, Sep. 22, 2022
Int. Cl. A61N 1/37 (2006.01); A61N 1/05 (2006.01); A61N 1/36 (2006.01)
CPC A61N 1/36038 (2017.08) [A61N 1/0541 (2013.01); H04R 2225/67 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A cochlear implant system comprising:
a sound processor configured to operate externally to a recipient of the cochlear implant system, the sound processor associated with a sound processor coil;
a cochlear implant including a cochlear implant coil configured to form a transcutaneous narrowband inductive link with the sound processor coil when the cochlear implant is implanted within the recipient, the cochlear implant coil having a size larger than a size of the sound processor coil and enabling the cochlear implant to:
receive, from the sound processor by way of the transcutaneous narrowband inductive link, a forward telemetry signal incorporating power for powering operations of the cochlear implant and forward telemetry data for directing the operations of the cochlear implant, and
transmit, to the sound processor by way of the transcutaneous narrowband inductive link, a backward telemetry signal incorporating backward telemetry data;
equalization circuitry integrated within the cochlear implant and configured to facilitate recovery, by the cochlear implant, of the forward telemetry data from the forward telemetry signal by compensating for distortion introduced onto the forward telemetry signal as a result of bandwidth limitations imposed by the transcutaneous narrowband inductive link; and
additional equalization circuitry integrated within the sound processor and configured to facilitate recovery, by the sound processor, of the backward telemetry data from the backward telemetry signal by compensating for distortion introduced onto the backward telemetry signal as a result of the bandwidth limitations imposed by the transcutaneous narrowband inductive link.