US 11,856,372 B2
Hearing device system and method for operating a hearing device system
Frank Naumann, Bubenreuth (DE)
Assigned to Sivantos Pte. Ltd., Singapore (SG)
Filed by Sivantos Pte. Ltd., Singapore (SG)
Filed on Feb. 3, 2022, as Appl. No. 17/591,827.
Claims priority of application No. 10 2021 200 984.0 (DE), filed on Feb. 3, 2021.
Prior Publication US 2022/0248156 A1, Aug. 4, 2022
Int. Cl. H04R 25/00 (2006.01); A61B 5/00 (2006.01)
CPC H04R 25/70 (2013.01) [A61B 5/6803 (2013.01); H04R 25/305 (2013.01); H04R 25/65 (2013.01); H04R 2225/0216 (2019.05)] 11 Claims
OG exemplary drawing
 
1. A hearing device system, comprising:
a photoplethysmography sensor to be worn in an auditory canal in an intended worn state;
an earpiece which at least partly covers said photoplethysmography sensor toward the auditory canal in the intended worn state;
a controller configured to use light captured by said photoplethysmography sensor to derive a comparison quantity of said earpiece being characteristic for a transmission through said earpiece, for a wavelength range of said photoplethysmography sensor, to compare the comparison quantity with a specified first limit and to output an alert if the specified first limit is traversed by the comparison quantity;
said controller configured to compare the comparison quantity with a second limit and to deduce a first type of said earpiece on a basis of a relative position of the comparison quantity in relation to the second limit; and
said controller configured to compare the comparison quantity with a third limit, the specified first limit being between the second limit and the third limit, and to deduce a second type of said earpiece on a basis of a relative position of the comparison quantity in relation to the third limit.