发明公开
EP2573952A3 Varying load modulation in an NFC-enabled device over a range of field strength
审中-公开
在一定范围的场强波动负载调制在具有NFC功能的设备
- 专利标题： Varying load modulation in an NFC-enabled device over a range of field strength
- 专利标题（中）： 在一定范围的场强波动负载调制在具有NFC功能的设备
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申请号： EP12005502.5申请日： 2012-07-27
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公开(公告)号： EP2573952A3公开(公告)日： 2013-04-24
- 发明人: Royston, Philip , Wilson, Robin , Marholev, Bojko
- 申请人： Broadcom Corporation
- 申请人地址： 5300 California Avenue Irvine, CA 92617 US
- 专利权人： Broadcom Corporation
- 当前专利权人： Broadcom Corporation
- 当前专利权人地址： 5300 California Avenue Irvine, CA 92617 US
- 代理机构： Jehle, Volker Armin
- 优先权： US201113242162 20110923
- 主分类号： H04B5/02
- IPC分类号： H04B5/02 ; H04B5/00
摘要：
An NFC-enabled device includes a load modulation communication section providing two or more selectable changes in the load impedance across the antenna terminals. At least one of the two or more selectable changes is dependent on both the transmit data and the concurrently detected strength of a tag reader field coupled to the NFC antenna.
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