公开(公告)号：US20170257233A1

公开(公告)日：2017-09-07

申请号：US15425609

申请日：2017-02-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： HYUKJUN SUNG ,  HYUNJAE KANG ,  DOHYUNG KIM ,  JAEHUN CHOI

IPC: H04L25/03 ,  H04L5/00 ,  H04L29/06

CPC classification number: H04L25/03273 ,  H04L5/0048 ,  H04L7/033 ,  H04L7/042 ,  H04L25/03853 ,  H04L69/22

Abstract: An electronic device includes a clock recovery circuit, a converter circuit, and a decoder circuit. The clock recovery circuit generates a reference clock. The converter circuit generates a conversion value that corresponds to a difference between a phase of reception data and a phase of the reference clock. The decoder circuit analyzes a reception characteristic of an antenna based on conversion values that corresponds to a start-of-frame (SOF) marker. The decoder circuit decodes a conversion value that corresponds to encoded data following the SOF marker in the reception data, with reference to the analyzed reception characteristic, into a digital value.

公开(公告)号：US20180138947A1

公开(公告)日：2018-05-17

申请号：US15626252

申请日：2017-06-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： JUNHO KIM ,  SEOK-HYUN KIM ,  JAEHUN CHOI

IPC: H04B5/00 ,  H04W4/00 ,  H03G3/30

CPC classification number: H04B5/0031 ,  H03G3/3089 ,  H04B5/0062 ,  H04W4/80

Abstract: A near field communication device includes an amplifier that amplifies a signal received through an antenna and outputs the signal as an amplified receive signal, a gain control block that adjusts a gain of the amplifier based on a level of a noise included in the amplified receive signal during a noise reception sequence, and a data determination block that determines a noise threshold voltage based on the level of the noise of the amplified receive signal after the gain is completely adjusted and determines data from the amplified receive signal by using the noise threshold voltage.