US 9,808,623 B2
Hearing system
Søren Kamaric Riis, Smørum (DK); and Shahrokh Tahniat, Smørum (DK)
Assigned to OTICON MEDICAL A/S, Smørum (DK)
Filed by Oticon Medical A/S, Smørum (DK)
Filed on Sep. 30, 2015, as Appl. No. 14/870,878.
Claims priority of application No. 14187924 (EP), filed on Oct. 7, 2014.
Prior Publication US 2016/0096018 A1, Apr. 7, 2016
Int. Cl. A61N 1/00 (2006.01); A61N 1/36 (2006.01); A61N 1/05 (2006.01); A61N 1/372 (2006.01); H04R 25/00 (2006.01)
CPC A61N 1/36032 (2013.01) [A61N 1/0541 (2013.01); A61N 1/37217 (2013.01); H04R 25/554 (2013.01); H04R 25/552 (2013.01); H04R 2225/67 (2013.01); H04S 2420/01 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A hearing system comprising:
an implantable device configured to be implanted under the skin of a wearer and the implantable device including two electrode devices each configured to stimulate a respective cochlea of the wearer, the implantable device configured to receive a wireless signal and convert the wireless signal to a stimulation signal to be applied via the electrodes to a respective cochlea,
an external device configured to be positioned at an ear of the wearer, the external device comprising:
a microphone system for receiving acoustic signals and converting the acoustic signals to an electrical signal representing the acoustic signals,
a processor including an encoder to encode the electrical signal to an encoded signal, where the encoder is configured to divide the electrical signal into a plurality of frequency bands and determine an energy level for each band,
the external device further comprising a transmission system configured to generate the wireless signal based on the encoded signal and configured for transmitting the wireless signal to the implantable device, a second external device comprising a microphone system for receiving acoustic signals and converting the acoustic signals to a second electrical signal representing the acoustic signal, the second external device configured to transmit the second electrical signal to the external device, and the external device generating the wireless signal based on the electrical signal and the second electrical signal,
wherein the encoding of the electrical signal includes a reduction for reducing the amount of information for at least one level.