- 专利标题： Method of monitoring and controlling a level of power transmitted by an antenna of a contactless communication device
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申请号： US17096480申请日： 2020-11-12
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公开(公告)号： US11663435B2公开(公告)日： 2023-05-30
- 发明人: Kosta Kovacic , Alexandre Tramoni
- 申请人： STMicroelectronics (Rousset) SAS , STMicroelectronics razvoj polprevodnikov d.o.o.
- 申请人地址： FR Rousset
- 专利权人： STMicroelectronics (Rousset) SAS,STMicroeleclroncs Razvoj Polprevodnikov D.O.O.
- 当前专利权人： STMicroelectronics (Rousset) SAS,STMicroeleclroncs Razvoj Polprevodnikov D.O.O.
- 当前专利权人地址： IT Agrate Brianza; SI Ljublijana
- 代理机构： Slater Matsil, LLP
- 优先权： EP 315147 2019.11.26
- 主分类号： G06K19/07
- IPC分类号： G06K19/07 ; G06K19/00 ; H02J50/80 ; G06K7/00 ; H04B5/00
摘要：
In an embodiment a method for dynamic power control of a power level transmitted by an antenna of a contactless reader is disclosed. The method may include supplying a power to the antenna and performing at least one power adjusting cycle for adjusting a power level during a contactless transaction with a transponder, each power adjusting cycle including modifying the power supplied to the antenna to a predetermined level of power, performing a first measuring of a loading effect on the antenna at the predetermined level of power and adjusting the power level according to the measured loading effect.
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