公开(公告)号：US10194409B2

公开(公告)日：2019-01-29

申请号：US15852997

申请日：2017-12-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeongtaek Moon ,  Jongpil Cho ,  Junho Kim ,  Iljong Song

IPC: H04W4/80 ,  H04W56/00

Abstract: A near field communication device includes an antenna, a matching circuit connected to the antenna, a clock extraction block that extracts a clock from a signal received by the antenna and outputs the extracted clock, a frequency compensation block that compensates for a frequency of the extracted clock and outputs a compensated clock, and a modulation and amplification block that performs modulation and amplification by using the compensated clock and outputs a transmit signal to the matching circuit. A first extracted clock has a first frequency that is extracted when the transmit signal is not output and a second extracted clock has a second frequency that is extracted when the transmit signal is output, the frequency compensation block compensates for the second frequency of the second extracted clock based on a difference between the first frequency of the first extracted clock and the second frequency of the second extracted clock.

公开(公告)号：US10236581B2

公开(公告)日：2019-03-19

申请号：US14805984

申请日：2015-07-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeongtaek Moon ,  Youngki Lee ,  Yohan Jang ,  Hyounghwan Roh ,  Iljong Song

IPC: H01Q7/00 ,  H04B5/00

Abstract: An antenna of a near field wireless communication device is provided. The antenna may include: a source coil pattern formed on one surface of a flexible printed circuit board (FPCB) and formed with a first conductive line between a first antenna port and a second antenna port; a resonance coil pattern formed with a second conductive line, which electrically separates from the source coil pattern; and a capacitor pattern electrically connected to the second conductive line, wherein one terminal of the capacitor pattern is connected to a first terminal of the second conductive line and the other terminal of the capacitor pattern is connected to a second terminal of the second conductive line through a third conductive line formed on the other surface of the FPCB.

公开(公告)号：US09571168B2

公开(公告)日：2017-02-14

申请号：US14796240

申请日：2015-07-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeongtaek Moon ,  Jinwoo Kim ,  Junho Kim

IPC: H04B5/00 ,  H04B5/02 ,  H04W4/00 ,  H04B1/00

CPC classification number: H04B5/02 ,  H04B5/0031 ,  H04B5/0056 ,  H04B5/0062 ,  H04W4/80 ,  Y02D70/00 ,  Y02D70/166 ,  Y02D70/42

Abstract: A data transceiver device for near field communication is provided which includes a matching and filtering circuit connected between an antenna and a transceiver and configured to conduct filtering and impedance matching for a reception signal and a transmission signal. The matching and filtering circuit includes a variable attenuator of which the impedance varies with a frequency so that an attenuation ratio of the reception data is smaller than that of the reception carrier signal.

Abstract translation: 提供一种用于近场通信的数据收发器装置，其包括连接在天线和收发器之间的匹配和滤波电路，并且被配置为对接收信号和发送信号进行滤波和阻抗匹配。 匹配和滤波电路包括可变衰减器，其中阻抗随频率变化，使得接收数据的衰减比小于接收载波信号的衰减比。

公开(公告)号：US20180234929A1

公开(公告)日：2018-08-16

申请号：US15852997

申请日：2017-12-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeongtaek Moon ,  Jongpil Cho ,  Junho Kim ,  Iljong Song

IPC: H04W56/00 ,  H04W4/80

CPC classification number: H04W56/001 ,  G06K19/0723 ,  H04B5/00 ,  H04B5/0031 ,  H04B5/0056 ,  H04W4/80

Abstract: A near field communication device includes an antenna, a matching circuit connected to the antenna, a clock extraction block that extracts a clock from a signal received by the antenna and outputs the extracted clock, a frequency compensation block that compensates for a frequency of the extracted clock and outputs a compensated clock, and a modulation and amplification block that performs modulation and amplification by using the compensated clock and outputs a transmit signal to the matching circuit. A first extracted clock has a first frequency that is extracted when the transmit signal is not output and a second extracted clock has a second frequency that is extracted when the transmit signal is output, the frequency compensation block compensates for the second frequency of the second extracted clock based on a difference between the first frequency of the first extracted clock and the second frequency of the second extracted clock.

公开(公告)号：US09761946B2

公开(公告)日：2017-09-12

申请号：US14803633

申请日：2015-07-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeongtaek Moon ,  Iljong Song ,  Yohan Jang ,  Sangsu Shin ,  Hyeonhee Choi

IPC: H01Q7/00 ,  H04B5/00 ,  H01Q1/22 ,  H01Q19/28 ,  H01Q7/02

CPC classification number: H01Q7/00 ,  H01Q1/2208 ,  H01Q19/28 ,  H04B5/0087

Abstract: A near field communication (NFC) antenna includes a first loop for receiving an electrical signal from the outside and a plurality of closed loops disposed in an inner area of the first loop. The plurality of closed loops do not overlap each other.