公开(公告)号：WO2015058082A1

公开(公告)日：2015-04-23

申请号：PCT/US2014/061132

申请日：2014-10-17

Applicant: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY

Inventor： ZHOU, Ruogu ,  XING, Guoliang

IPC: G06K7/10 ,  G06K7/00

CPC classification number: H04W52/246 ,  G06K7/0008 ,  G06K7/10366 ,  H04W4/80

Abstract: A near field communication (NFC) system (200) and method for controlling transmission power of the NFC system (200) includes a NFC reader (202) configured to transmit a radio frequency (RF) signal having an initial amount of RF power, a NFC target device (204) in selective communication with the NFC reader (202), and a NFC transmission power control platform (208) disposed between the NFC reader (202) and the NFC target device (204). The platform (208) includes a microcontroller (218) and at least one circuit (209) in communication with the microcontroller (218) and configured to determine an actual amount of RF power needed to sustain near field communications between the NFC reader (202) and the NFC target device (204) and configured to regulate the RF signal, where the regulated RF signal contains the actual amount of RF power needed to sustain near field communications between the NFC reader (202) and the NFC target device (204).

Abstract translation: 一种用于控制NFC系统（200）的发射功率的近场通信（NFC）系统（200）和方法，包括：NFC读取器（202），被配置为发送具有初始RF功率的射频（RF）信号， NFC目标设备（204）与NFC读取器（202）选择性地通信，以及NFC传输功率控制平台（208），其设置在NFC读取器（202）和NFC目标设备（204）之间。 平台（208）包括微控制器（218）和与微控制器（218）通信的至少一个电路（209），并被配置为确定维持NFC读取器（202）之间的近场通信所需的RF功率的实际量， 和NFC目标设备（204）并且被配置为调节RF信号，其中经调节的RF信号包含维持NFC阅读器（202）和NFC目标设备（204）之间的近场通信所需的实际的RF功率量。