US 12,273,678 B2
Noise reduction method and system
Michael Syskind Pedersen, Smørum (DK); Jan M. De Haan, Smørum (DK); Andreas Thelander Bertelsen, Smørum (DK); Matias Tofteby Bach, Smørum (DK); Rasmus Glarborg Jensen, Smørum (DK); Franz Treue, Smørum (DK); and Kåre Tais Christensen, Smørum (DK)
Assigned to OTICON A/S, Smørum (DK)
Filed by Oticon A/S, Smørum (DK)
Filed on Nov. 21, 2023, as Appl. No. 18/515,902.
Application 18/515,902 is a continuation of application No. 17/502,570, filed on Oct. 15, 2021, granted, now 11,849,275.
Application 17/502,570 is a continuation of application No. 16/599,880, filed on Oct. 11, 2019, granted, now 11,178,480, issued on Nov. 16, 2021.
Claims priority of application No. 18200120 (EP), filed on Oct. 12, 2018.
Prior Publication US 2024/0163600 A1, May 16, 2024
Int. Cl. H04R 1/10 (2006.01); G10L 21/0208 (2013.01); H04R 25/00 (2006.01)
CPC H04R 1/1083 (2013.01) [G10L 21/0208 (2013.01); H04R 25/30 (2013.01); H04R 25/505 (2013.01); H04R 25/552 (2013.01); H04R 25/554 (2013.01); H04R 25/558 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A hearing aid comprising
a battery;
an active component powered by the battery, wherein operation of the active component causes a power drain from the battery, and the active component includes at least part of a radio frequency (RF) transceiver in the hearing aid;
an element connected to the active component to measure current drawn by the active component from the battery, wherein the element comprises a resistor, transformer, or Hall sensor;
a noise sensitive component powered by the battery; and
a processor powered by the battery, the processor being configured to obtain a measure of the power drain from the battery based on the current measured via the element,
wherein the processor is configured to subtract a scaled noise estimate from an audio input signal from the noise sensitive component in response to detecting, based on the measure of the power drain, present usage of battery power by the active component.