Invention Grant
- Patent Title: NFC tag emulation mode with constant magnetic field
- Patent Title (中): 具有恒定磁场的NFC标签仿真模式
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Application No.: US14395249Application Date: 2013-04-23
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Publication No.: US09379784B2Publication Date: 2016-06-28
- Inventor: Achraf Dhayni
- Applicant: ST-Ericsson SA
- Applicant Address: CH Plan-les-Ouates
- Assignee: ST-ERICSSON SA
- Current Assignee: ST-ERICSSON SA
- Current Assignee Address: CH Plan-les-Ouates
- Agency: Patent Portfolio Builders PLLC
- Priority: EP12305507 20120507
- International Application: PCT/EP2013/058397 WO 20130423
- International Announcement: WO2013/167375 WO 20131114
- Main IPC: H04B5/00
- IPC: H04B5/00 ; G06K7/10 ; G06K7/00

Abstract:
A method for performing electromagnetic induction communication enables transmitting modulation data between communication devices. The method includes coupling a first antenna of a first communication device and a second antenna of a second communication device, generating a magnetic field by supplying a first current through the first antenna, and modulating the magnetic field according to the modulation data. The first current is regulated so as to be substantially constant, by introducing a regulating current, which is function of the magnetic field. The first communication device determines the modulation data from the regulating current.
Public/Granted literature
- US20150079902A1 NFC Tag Emulation Mode with Constant Magnetic Field Public/Granted day:2015-03-19
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