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    Near field communication circuit and operating method of the same
    1.
    发明授权
    Near field communication circuit and operating method of the same 有权
    近场通信电路和操作方法相同

    公开(公告)号：US09379778B2

    公开(公告)日：2016-06-28

    申请号：US13960787

    申请日：2013-08-06

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Hyoung Hwan Roh ,  Il Jong Song ,  Chol Su Yoon

    IPC: H04B5/00 ,  G06K19/07

    CPC classification number: H04B5/0012 ,  G06K19/0726 ,  H04B5/0031 ,  H04B5/0056

    Abstract: The near field communication (NFC) circuit includes an NFC reader circuit configured to communicate with an outside through an antenna, a resonant and matching circuit connected between the NFC reader circuit and the antenna, an NFC card circuit connected to nodes and configured to communicate with the outside through the antenna, and a processor configured to output a plurality of control signals when the NFC reader circuit is enabled, wherein the NFC card circuit is configured to control a resonant frequency of the antenna in response to the plurality of control signals.

    Abstract translation: 近场通信（NFC）电路包括被配置为通过天线与外部通信的NFC读取器电路，连接在NFC读取器电路和天线之间的谐振和匹配电路，连接到节点并被配置为与 通过天线的外部，以及配置成当NFC读取器电路被使能时输出多个控制信号的处理器，其中，所述NFC卡电路被配置为响应于所述多个控制信号来控制所述天线的谐振频率。

    Semiconductor device for near-field communication
    2.
    发明授权
    Semiconductor device for near-field communication 有权

    公开(公告)号：US10256671B2

    公开(公告)日：2019-04-09

    申请号：US15356863

    申请日：2016-11-21

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Chan Yong Kim ,  In Hyuk Kim ,  Il Jong Song ,  Sang Hyo Lee

    IPC: H02J50/80 ,  H02J50/20 ,  H02J50/40 ,  H04B5/00

    Abstract: A semiconductor device is provided. The semiconductor device includes a first coil section that receives a first clock signal from a reader, a power generator that is electrically connected to the first coil section in accordance with a switching operation of a switch, a first near-field communication (NFC) chip that is electrically connected to the power generator and receives electric power in accordance with the first clock signal, a second NFC chip that generates a switching operation control signal for controlling the switching operation of the switch, and a second coil section that is electrically connected to the second NFC chip and receives a second clock signal from the reader.

    Apparatus and method for radio frequency transmission
    4.
    发明授权
    Apparatus and method for radio frequency transmission 有权
    射频传输装置及方法

    公开(公告)号：US09191040B2

    公开(公告)日：2015-11-17

    申请号：US14157002

    申请日：2014-01-16

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Chol Su Yoon ,  Hyoung Hwan Roh ,  Il Jong Song

    IPC: H04B1/04 ,  G06K7/10

    CPC classification number: H04B1/0475 ,  G06K7/10217 ,  G06K7/10316 ,  H04B1/0483

    Abstract: A radio frequency (RF) transmission circuit includes an antenna connection terminal, a plurality of amplifiers connected to the antenna connection terminal in parallel, a plurality of drivers for driving the plurality of amplifiers, and a control circuit configured to control operation of the plurality of drivers based on information indicating a characteristic of a RF signal to be transmitted through the antenna connection terminal.

    Abstract translation: 射频（RF）传输电路包括天线连接端子，并联连接到天线连接端子的多个放大器，用于驱动多个放大器的多个驱动器，以及控制电路，被配置为控制多个 基于表示通过天线连接终端发送的RF信号的特性的信息的驱动器。

    Near field communication device
    6.
    发明授权
    Near field communication device 有权

    公开(公告)号：US10608702B2

    公开(公告)日：2020-03-31

    申请号：US16000007

    申请日：2018-06-05

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Young Joo Lee ,  Jong Pil Cho ,  June Soo Kim ,  Il Jong Song

    IPC: H04B5/00 ,  H04W4/80 ,  H04W76/28 ,  G06F1/3287 ,  H04B5/02

    Abstract: A near field communication (NFC) device includes a communications module and a controller. The communications module includes a receiver to receive a wireless signal, a transmitter to transmit data by superimposing the data on the wireless signal, and a signal detector to compare the wireless signal with a predetermined reference signal. The communications module operates in at least one of a wakeup mode and a sleep mode, the receiver and transmitter are activated to operate in wakeup mode, and the receiver and transmitter are deactivated in sleep mode. The controller adjusts the sensitivity of the signal detector based on a magnitude of the wireless signal and an operating condition of the communications module when the communications module enters the wakeup mode from the sleep mode.

    Near field communications device
    7.
    发明授权
    Near field communications device 有权

    公开(公告)号：US10187122B2

    公开(公告)日：2019-01-22

    申请号：US15666914

    申请日：2017-08-02

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Seong Sik Myoung ,  Jun Ho Kim ,  Sang Hyo Lee ,  Il Jong Song

    IPC: H04B5/02 ,  H03F3/19 ,  H03F3/21 ,  H03G3/30 ,  H02M3/04

    Abstract: A near field communications (NFC) device includes a receiving module and a transmitting module. The receiving module includes a receiver receiving an analog signal that includes a carrier signal and data, an analog-to-digital converter converting the analog signal to a digital signal, and a filter filtering the digital signal. The transmitting module includes a direct current-direct current (DC-DC) converter having an operating frequency belonging to a stop band of the filter, and a transmitter receiving power from the DC-DC converter and receiving a system clock signal.

    Voltage adjusting circuit and contactless card and contactless card system which include the same
    9.
    发明授权
    Voltage adjusting circuit and contactless card and contactless card system which include the same 有权
    电压调节电路和非接触式卡和非接触式卡系统，包括相同的

    公开(公告)号：US09178362B2

    公开(公告)日：2015-11-03

    申请号：US14534597

    申请日：2014-11-06

    Applicant: SAMSUNG Electronics Co., Ltd.

    Inventor： Il Jong Song ,  Jong Pil Cho

    IPC: H02M7/06 ,  H02J5/00

    CPC classification number: H02J50/12 ,  H02J5/005 ,  H02M7/06 ,  H02M7/066 ,  Y10T307/406

    Abstract: A voltage adjusting circuit includes an inducing circuit configured to induce a voltage from electromagnetic waves, a first rectifying circuit configured to rectify an output signal of the inducing circuit, a second rectifying circuit configured to rectify the output signal of the inducing circuit, a first regulator configured to regulate an output signal of the first rectifying circuit, and a second regulator configured to regulate an output signal of the second rectifying circuit.

    Abstract translation: 电压调节电路包括：感应电路，其被配置为从电磁波感应电压;第一整流电路，被配置为对感应电路的输出信号进行整流;第二整流电路，被配置为对感应电路的输出信号进行整流;第一调节器 被配置为调节第一整流电路的输出信号，以及第二调节器，被配置为调节第二整流电路的输出信号。

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