(19)

(11)

EP 3 443 760 A1

(12)

(43) Date of publication: 20.02.2019 Bulletin 2019/08 (21) Application number: 17783125.2 (22) Date of filing: 13.04.2017

(51) International Patent Classification (IPC):  H04R 19/04(2006.01) H04R 19/00(2006.01) B81B 7/00(2006.01) H04R 1/06(2006.01) (86) International application number: PCT/US2017/027397 (87) International publication number: WO 2017/180858 (19.10.2017 Gazette 2017/42)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 14.04.2016 US 201615099096 (71) Applicants: Robert Bosch GmbH 70442 Stuttgart (DE) Akustica Inc. Pittsburgh, PA 15203 (US)	(72) Inventor: SAXENA, Kuldeep Sewickley, PA 15143 (US) (74) Representative: Isarpatent  Patent- und Rechtsanwälte Behnisch Barth Charles Hassa Peckmann & Partner mbB Friedrichstrasse 31 80801 München 80801 München (DE)