(19)

(11)

EP 3 248 288 A1

(12)

(43) Date of publication: 29.11.2017 Bulletin 2017/48 (21) Application number: 16740882.2 (22) Date of filing: 22.01.2016

(51) International Patent Classification (IPC):  H03K 17/62(2006.01) H03L 7/24(2006.01) H03K 17/04(2006.01) (86) International application number: PCT/US2016/014634 (87) International publication number: WO 2016/118931 (28.07.2016 Gazette 2016/30)

(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: 23.01.2015 US 201562107287 P (71) Applicant: Metrotech Corporation Santa Clara, CA 95054 (US)	(72) Inventors: MAINESCU, George Hillsdale, NJ 07642 (US) DRACEA, Ion 105600 Campina (RO) STEFANOIU, Razvan Gabriel 105600 Campina (RO) LACATUS, Paul Lucian 105600 Campina (RO) (74) Representative: Freeman, Jacqueline Carol  WP Thompson 138 Fetter Lane London EC4A 1BT London EC4A 1BT (GB)