(19)

(11)

EP 3 371 981 A1

(12)

(43) Date of publication: 12.09.2018 Bulletin 2018/37 (21) Application number: 16794161.6 (22) Date of filing: 28.10.2016

(51) International Patent Classification (IPC):  H04R 1/10(2006.01) H04R 3/00(2006.01) G10K 11/178(2006.01) (86) International application number: PCT/US2016/059339 (87) International publication number: WO 2017/079053 (11.05.2017 Gazette 2017/19)

(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: 06.11.2015 US 201562252058 P (71) Applicant: Cirrus Logic International Semiconductors, Ltd. Quartermile Edinburgh EH3 9EG (GB)	(72) Inventors: HENDRIX, Jon D. Wimberley, Texas 78676 (US) ALDERSON, Jeffrey D. Austin, Texas 78737 (US) YONG, Chin Huang Austin, Texas 78749 (US) HELLMAN, Ryan A. Austin, Texas 78748 (US) (74) Representative: Haseltine Lake LLP  Redcliff Quay 120 Redcliff Street Bristol BS1 6HU Bristol BS1 6HU (GB)