Invention Grant
US09305193B2 Contactless communication device and user device including the same
有权
非接触通信设备和包括其的用户设备
- Patent Title: Contactless communication device and user device including the same
- Patent Title (中): 非接触通信设备和包括其的用户设备
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Application No.: US14183900Application Date: 2014-02-19
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Publication No.: US09305193B2Publication Date: 2016-04-05
- Inventor: Youngjoo Lee , Iljong Song , Cholsu Yoon
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Yeongtong-gu, Suwon-si, Gyeonggi-do
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Yeongtong-gu, Suwon-si, Gyeonggi-do
- Agency: Muir Patent Law, PLLC
- Priority: KR10-2013-0024625 20130307
- Main IPC: G06K7/10
- IPC: G06K7/10
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.
Public/Granted literature
- US20150178525A1 CONTACTLESS COMMUNICATION DEVICE AND USER DEVICE INCLUDING THE SAME Public/Granted day:2015-06-25
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