公开(公告)号：US09305193B2

公开(公告)日：2016-04-05

申请号：US14183900

申请日：2014-02-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngjoo Lee ,  Iljong Song ,  Cholsu Yoon

IPC: G06K7/10

CPC classification number: G06K7/10237 ,  G06K7/10158 ,  G06K7/10217

Abstract: A contactless communication device is provided which includes a field strength detecting circuit configured to detect a strength of a field induced on an antenna; a card circuit configured to demodulate a signal received via the antenna during a reception interval of a card mode; a processing unit configured to process the demodulated signal; and a reader circuit configured to transmit data via the antenna during a transmission interval of the card mode, the data provided from the processing unit, wherein an output power of the reader circuit is adjusted according to the field strength detected.

Abstract translation: 提供一种非接触式通信装置，其包括：场强检测电路，被配置为检测在天线上感应的场强; 卡电路，被配置为在卡模式的接收间隔期间解调经由所述天线接收的信号; 处理单元，被配置为处理所述解调信号; 以及读取器电路，被配置为在所述卡模式的传输间隔期间从所述处理单元提供的数据经由所述天线发送数据，其中，根据检测到的场强调整所述读取器电路的输出功率。