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    Semiconductor device for near-field communication
    1.
    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.

    Amplitude shift keying demodulator and communication apparatus including the same
    2.
    发明授权
    Amplitude shift keying demodulator and communication apparatus including the same 有权
    幅移键控解调器和包括它的通信设备

    公开(公告)号：US09215117B2

    公开(公告)日：2015-12-15

    申请号：US14599729

    申请日：2015-01-19

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Sang Hyo Lee ,  Su Hwan Kim ,  Ji Sung Kim

    IPC: H04B1/38 ,  H04L27/06 ,  H04L7/04

    CPC classification number: H04L27/06

    Abstract: An amplitude shift keying (ASK) demodulator and a communication apparatus including the same are provided. The ASK demodulator includes an envelope detector, a clock generator, a plurality of elementary demodulators, and a post signal processor. The envelope detector is configured to detect an envelope of an ASK modulated signal and to generate an envelope signal. The clock generator is configured to generate a main clock signal and first through n-th clock signals, where n is a positive integer of at least 2. The plurality of elementary demodulators are each configured to sample the envelope signal using a first sampling clock signal and a second sampling clock signal, and to output first through n-th elementary demodulated signals based on a difference between the sampled envelope signals using the first sampling clock signal and the second sampling clock signal. The post signal processor is configured to generate a final demodulated signal using at least one of the first through n-th elementary demodulated signals.

    Abstract translation: 提供了一种幅度键控（ASK）解调器和包括该解调器的通信装置。 ASK解调器包括包络检测器，时钟发生器，多个基本解调器和后置信号处理器。 包络检测器被配置为检测ASK调制信号的包络并产生包络信号。 时钟发生器被配置为产生主时钟信号和第一至第n时钟信号，其中n是至少为2的正整数。多个基本解调器被配置为使用第一采样时钟信号对包络信号进行采样 以及第二采样时钟信号，并且基于使用第一采样时钟信号和第二采样时钟信号的采样包络信号之间的差来输出第一到第n个基本解调信号。 后信号处理器被配置为使用第一到第n个基本解调信号中的至少一个来产生最终解调信号。

    Near field communications device
    3.
    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.

    Integrated circuit including multiple transmitters and near field communication system including the circuit
    5.
    发明授权
    Integrated circuit including multiple transmitters and near field communication system including the circuit 有权

    公开(公告)号：US09985693B2

    公开(公告)日：2018-05-29

    申请号：US15422589

    申请日：2017-02-02

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Byeong Taek Moon ,  Ii Jong Song ,  Sang Hyo Lee

    IPC: H04B5/00 ,  H03H7/40

    CPC classification number: H04B5/0031 ,  H03H7/38 ,  H03H7/40 ,  H04B5/0056

    Abstract: An integrated circuit for near field communication (NFC) is provided. The integrated circuit includes a semiconductor substrate; a first transmitter disposed on the semiconductor substrate and configured to operate in a first NFC card mode, an NFC reader mode, and a peer-to-peer mode; a second transmitter disposed on the semiconductor substrate and configured to operate in a second NFC card mode; first transmitting pins connected to the semiconductor substrate and configured to transmit an output signal of the first transmitter to a first NFC antenna; second transmitting pins connected to the semiconductor substrate and configured to transmit an output signal of the second transmitter to a second NFC antenna; and a logic circuit disposed on the semiconductor substrate and configured to receive a control signal, and control an operation of the first transmitter and an operation of the second transmitter based on the control signal.

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