Sennheiser's noise-reduction patent lacks novelty, EPO appellate ruling says
By Inbar Preiss ( January 13, 2025, 13:37 GMT | Insight) -- German audio equipment giant Sennheiser’s patent for a method to reduce uncorrelated noise in audio signals, including those in hearing aids and headsets, has been revoked by the European Patent Office’s Board of Appeal. GN Hearing, a Danish audio device company, argued that the claimed noise-reduction techniques were already described in prior art. The board also rejected Sennheiser’s auxiliary claim requests.Sennheiser's patent for a method to reduce uncorrelated noise in audio signals — such as encountered in hearing aids and headsets — was revoked in a European Patent Office Board of Appeal decision published today....
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