The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 2015
Filed:
Apr. 16, 2010
Yu Jiang, Shenzhen, CN;
Yu Jiang, Shenzhen, CN;
Nationz Technologies Inc., Shenzhen, CN;
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 Thresholdas a low-frequency magnetic field intensity value corresponding to a distance to trigger the transaction; setting a Thresholdas a low-frequency magnetic field intensity value corresponding to an effective communication distance of the low-frequency magnetic field; setting a Thresholdas 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; if yes, receiving and storing information of the low-frequency magnetic field; further determining whether a low-frequency magnetic field intensity is >=the Threshold; if yes, initiating a transaction process; during the transaction process, determining whether a low-frequency magnetic field intensity is < the Threshold; if yes, interrupting the transaction.