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1. WO2011091622 - METHOD AND SYSTEM FOR NEAR FIELD COMMUNICATION

Publication Number WO/2011/091622
Publication Date 04.08.2011
International Application No. PCT/CN2010/071395
International Filing Date 29.03.2010
IPC
H04L 9/32 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Arrangements for secret or secure communication
32including means for verifying the identity or authority of a user of the system
G06K 7/00 2006.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
7Methods or arrangements for sensing record carriers
CPC
G06K 17/00
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
17Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
G06K 19/07749
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards ; also with resonating or responding marks without active components
07with integrated circuit chips
077Constructional details, e.g. mounting of circuits in the carrier
07749the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
G06K 7/00
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
7Methods or arrangements for sensing record carriers, ; e.g. for reading patterns;
G06K 7/0008
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
7Methods or arrangements for sensing record carriers, ; e.g. for reading patterns;
0008General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
G06K 7/10118
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
7Methods or arrangements for sensing record carriers, ; e.g. for reading patterns;
10by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
10009sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
10118the sensing being preceded by at least one preliminary step
G06K 7/10465
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
7Methods or arrangements for sensing record carriers, ; e.g. for reading patterns;
10by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
10009sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
10366the interrogation device being adapted for miscellaneous applications
10465the interrogation device being capable of self-diagnosis, e.g. in addition to or as part of the actual interrogation process
Applicants
  • 国民技术股份有限公司 NATIONZ TECHNOLOGIES INC. [CN]/[CN] (AllExceptUS)
  • 沈爱民 SHEN, Aimin [CN]/[CN] (UsOnly)
  • 罗魏熙 LUO, Weixi [CN]/[CN] (UsOnly)
Inventors
  • 沈爱民 SHEN, Aimin
  • 罗魏熙 LUO, Weixi
Agents
  • 北京轻创知识产权代理有限公司 KEYCOM INTELLECTUAL PROPERTY LIMITED
Priority Data
201010300975.829.01.2010CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD AND SYSTEM FOR NEAR FIELD COMMUNICATION
(FR) PROCÉDÉ ET SYSTÈME DE COMMUNICATION EN CHAMP PROCHE
(ZH) 近距离通信方法及系统
Abstract
(EN) A method and system for near field communication are provided. The method includes: a card reader transmitting a low-frequency time-varying magnetic field signal whose frequency is equal to or less than a highest frequency f0 at which the system is non-adjusted working, and the signal carrying identifier information of the card reader; a mobile radio frequency device receiving and detecting the low-frequency signal, and magnifying it to be a voltage signal, and judging whether a terminal enters a valid distance interval or not; if the voltage signal is greater than or equal to a voltage threshold Vt, then the terminal entering the valid brushing card interval, and obtaining the identifier information of the card reader, and transmitting its own identifier information together with the identifier information of the card reader to the card reader through a radio frequency channel; the card reader receiving the transmitted information, and comparing whether the identifier information in the transmitted information is consistent with the identifier information of its own or not, if it is consistent, then performing a brushing card exchange with the mobile radio frequency device through the radio frequency channel. This solution realizes that the data communicating distance between a radio frequency communication terminal including a mobile radio frequency device and a card reader can be controlled reliably within a stated range, and an adjusting to the terminal is not needed.
(FR) L'invention porte sur un procédé et un système de communication en champ proche. Le procédé comprend les opérations suivantes : un lecteur de carte envoie un signal de champ magnétique variant dans le temps à basse fréquence dont la fréquence est inférieure ou égale à une fréquence la plus élevée f0 à laquelle le système fonctionne sans ajustement, le signal contenant des informations d'identifiant du lecteur de carte; un dispositif radiofréquence mobile reçoit et détecte le signal à basse fréquence, et l'amplifie pour obtenir un signal de tension, et détermine si un terminal entre dans un intervalle de distance valide ou non; si le signal de tension est supérieur ou égal à un seuil de tension Vt, alors le terminal entre dans l'intervalle de carte à balayer valide, et obtient les informations d'identifiant de lecteur de carte, et envoie ses propres informations d'identifiant conjointement avec les informations d'identifiant du lecteur de carte au lecteur de carte par l'intermédiaire d'un canal radiofréquence; le lecteur de carte reçoit les informations envoyées, et effectue une comparaison pour détecter si les informations d'identifiant figurant dans les informations envoyées sont cohérentes ou non avec ses propres informations d'identifiant, si elles sont cohérentes, alors il réalise un échange de carte à balayer avec le dispositif radiofréquence mobile par l'intermédiaire du canal radiofréquence. Cette solution réalise le fait que la distance de communication de données entre un terminal de communication radiofréquence comprenant un dispositif radiofréquence mobile et un lecteur de carte peut être réglée de façon fiable dans une plage spécifiée, et il n'est pas nécessaire d'apporter un ajustement au terminal.
(ZH) 本发明涉及近距离通信方法和系统。所述方法包括:读卡器发射低频交变磁场信号,其频率等于或小于系统无校准工作的最高频率f0,信号中携带其身份标识信息;移动射频装置接收、检测低频信号并放大为电压信号,判断终端是否进入有效距离区间;若电压信号大于或等于电压门限Vt,则终端进入有效刷卡区间,获取读卡器身份标识信息,连同自身的身份标识信息一起通过射频通道传送给读卡器;读卡器接收所述传送信息,比较其中身份标识信息是否同自身的身份标识信息一致,若一致则与移动射频装置通过射频通道进行刷卡交易。本发明实现了含有移动射频装置的射频通信终端与读卡器的数据通信距离可靠地控制在规定范围内,并且无需对终端进行校准。
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VNVN1201102464This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.
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