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Pub. No.:    WO/2018/067559    International Application No.:    PCT/US2017/054929
Publication Date: 12.04.2018 International Filing Date: 03.10.2017
H04B 5/00 (2006.01), G06K 19/07 (2006.01), G01R 25/00 (2006.01), G01R 25/04 (2006.01)
Applicants: SQUARE, INC. [US/US]; 1455 Market Street Suite 600 San Francisco, CA 94103 (US)
Inventors: SHIVNARAINE, Ravi; (US).
BIDARI, Emad; (US).
ROUSSON, Alain; (US).
YANG, Yue; (US).
REZAYEE, Afshin; (US)
Agent: VAN HOVEN, Joshua; (US).
SATTIZAHN, Brian, T.; (US).
BROWNING, Brandon; (US).
DODD, Curtis, W.; (US).
LETSON, Ryan, J.; (US)
Priority Data:
15/283,520 03.10.2016 US
Abstract: front page image
(EN)A payment reader includes a tuning circuit that provides a tuned transmission source signal to an antenna for transmission. A sense circuit coupled to the antenna provides a measured transmitted signal to a binary phase detection circuit. The binary phase detection circuit filters and processes the signal to provide an analog phase signal that corresponds to a phase difference between the measured transmitted signal and the transmission source signal. A comparison circuit compares the analog phase signal to a reference signal, and a decision circuit adjusts the operation of the transmission circuitry based on the comparison.
(FR)L'invention concerne un lecteur de paiement comprenant un circuit d'accord qui fournit un signal de source de transmission accordé à une antenne pour transmission. Un circuit de détection couplé à l'antenne fournit un signal d'émission mesuré à un circuit de détection de phase binaire. Le circuit de détection de phase binaire filtre et traite le signal pour fournir un signal de phase analogique qui correspond à une différence de phase entre le signal d'émission mesuré et le signal de source de transmission. Un circuit de comparaison compare le signal de phase analogique à un signal de référence, et un circuit de décision règle le fonctionnement du circuit de transmission sur la base de la comparaison.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)