(19)

(11)

EP 3 507 908 A1

(12)

(43) Date of publication: 10.07.2019 Bulletin 2019/28 (21) Application number: 17765298.9 (22) Date of filing: 25.08.2017

(51) International Patent Classification (IPC):  H03K 5/1252(2006.01) H03K 5/1254(2006.01) (86) International application number: PCT/US2017/048667 (87) International publication number: WO 2018/044725 (08.03.2018 Gazette 2018/10)

(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: 31.08.2016 US 201615253769 31.08.2016 US 201615253731 31.08.2016 US 201615253779 (71) Applicant: Square, Inc. San Francisco, California 94103 (US)	(72) Inventors: REZAYEE, Afshin San Francisco CA 94103 (US) SHIVNARAINE, Ravi San Francisco CA 94103 (US) ROUSSON, Alain San Francisco CA 94103 (US) YANG, Yue San Francisco CA 94103 (US) JULAVITTAYANUKOOL, Kajornsak San Francisco CA 94103 (US) (74) Representative: Shipp, Nicholas et al Kilburn & Strode LLP Lacon London 84 Theobalds Road London WC1X 8NL London WC1X 8NL (GB)