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1. (WO2017095328) ASYNCHRONOUS TRANSMISSION FOR NFC CARD EMULATION MODE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/095328 International Application No.: PCT/SG2016/050573
Publication Date: 08.06.2017 International Filing Date: 22.11.2016
IPC:
H04B 5/00 (2006.01) ,G06K 19/07 (2006.01) ,H04L 7/00 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
5
Near-field transmission systems, e.g. inductive loop type
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
K
RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19
Record carriers for use with machines and with at least a part designed to carry digital markings
06
characterised by the kind of the digital marking, e.g. shape, nature, code
067
Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards
07
with integrated circuit chips
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
7
Arrangements for synchronising receiver with transmitter
Applicants:
HUAWEI INTERNATIONAL PTE. LTD. [SG/SG]; 51, Changi Business Park Central 2, #07-08, The Signature Singapore 486066, SG
Inventors:
WICAKSANA, Harya; SG
YU, Zhan; SG
YU, Rui; SG
Priority Data:
10201509972Y04.12.2015SG
Title (EN) ASYNCHRONOUS TRANSMISSION FOR NFC CARD EMULATION MODE
(FR) ÉMISSION ASYNCHRONE POUR UN MODE D’ÉMULATION DE CARTE NFC
Abstract:
(EN) A system and method for an NFC card for use in asynchronous NFC card emulation mode transmission. The method comprises estimating carrier frequency offset between a carrier frequency of a NFC reader and a carrier frequency of the NFC card, adjusting digital baseband sampling of the baseband sample output at the NFC card emulation mode transmitter based on the estimated carrier frequency offset to obtain an adjusted baseband sample output and modulating a RF transmitter in the NFC card emulation mode transmitter based on the adjusted baseband sample output.
(FR) L’invention concerne un système et un procédé pour une carte de communication en champ proche (NFC) pour une utilisation dans une émission de mode d’émulation de carte NFC asynchrone. Le procédé consiste à estimer un décalage de fréquence porteuse entre une fréquence porteuse d’un lecteur NFC et une fréquence porteuse de la carte NFC, à régler un échantillonnage de bande de base numérique de la sortie d’échantillon de bande de base au niveau de l’émetteur de mode d’émulation de carte NFC sur la base du décalage de fréquence porteuse estimé pour obtenir une sortie d’échantillon de bande de base réglée, et à moduler un émetteur radiofréquence (RF) dans l’émetteur de mode d’émulation de carte NFC sur la base de la sortie d’échantillon de bande de base réglée.
front page image
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, JP, KE, KG, 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 (ARIPO) (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)
Also published as:
CN108141251EP3342055US20180248722