Invention Grant
- Patent Title: Methods for a radio-frequency SIM card with low-frequency magnetic communication to trigger a transaction according to determined distance thresholds
- Patent Title (中): 具有低频磁通信的射频SIM卡根据确定的距离阈值触发事务的方法
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Application No.: US13638252Application Date: 2010-04-16
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Publication No.: US09002269B2Publication Date: 2015-04-07
- Inventor: Yu Jiang
- Applicant: Yu Jiang
- Applicant Address: CN Shenzhen
- Assignee: Nationz Technologies Inc.
- Current Assignee: Nationz Technologies Inc.
- Current Assignee Address: CN Shenzhen
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner LLP
- Priority: CN2010101387941 20100402
- International Application: PCT/CN2010/071822 WO 20100416
- International Announcement: WO2011/120242 WO 20111006
- Main IPC: H04B5/00
- IPC: H04B5/00 ; G06K7/10
Abstract:
A method for a radio-frequency SIM card with low-frequency magnetic communication to trigger a transaction according to determined distance thresholds comprises: setting a Threshold 1 as a low-frequency magnetic field intensity value corresponding to a distance to trigger the transaction; setting a Threshold 2 as a low-frequency magnetic field intensity value corresponding to an effective communication distance of the low-frequency magnetic field; setting a Threshold 3 as a low-frequency magnetic field intensity value corresponding to a farthest transaction distance; examining an intensity of the low-frequency magnetic field transmitted by a card reader and determining whether the intensity is >=the Threshold 2; if yes, receiving and storing information of the low-frequency magnetic field; further determining whether a low-frequency magnetic field intensity is >=the Threshold 1; if yes, initiating a transaction process; during the transaction process, determining whether a low-frequency magnetic field intensity is
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