公开(公告)号：US20180331866A1

公开(公告)日：2018-11-15

申请号：US16041910

申请日：2018-07-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jacob C. Sharpe ,  Fei Tong ,  Myeong-Cheol Shin ,  Jeongtaek Lee

IPC: H04L27/12 ,  H04W28/14 ,  H04W4/80 ,  H04L27/26

CPC classification number: H04L27/12 ,  H04L27/265 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2672 ,  H04L27/2675 ,  H04L27/2682 ,  H04L27/2692 ,  H04W4/80

Abstract: A receiver configured to receive a frequency-modulated transmission having a preamble and a corresponding method are provided, the receiver having a buffer coupled to an input terminal for receiving the transmission, a time-to-frequency transformer coupled to the buffer, an energy aggregator coupled to the transformer, a preamble detector coupled to the aggregator, and a symbol synchronizer coupled to the detector; the method including receiving a sequence of time-domain frequency-modulated samples, transforming the sequence of time-domain samples into a spectrum of frequency-domain data, and matching an actual energy distribution over a plurality of discrete frequencies in the frequency-domain data with an expected energy distribution of the preamble to determine frequency error.

公开(公告)号：US10454729B2

公开(公告)日：2019-10-22

申请号：US16041910

申请日：2018-07-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jacob C. Sharpe ,  Fei Tong ,  Myeong-Cheol Shin ,  Jeongtaek Lee

IPC: H04L27/12 ,  H04W28/14 ,  H04L27/26 ,  H04W4/80

Abstract: A receiver configured to receive a frequency-modulated transmission having a preamble and a corresponding method are provided, the receiver having a buffer coupled to an input terminal for receiving the transmission, a time-to-frequency transformer coupled to the buffer, an energy aggregator coupled to the transformer, a preamble detector coupled to the aggregator, and a symbol synchronizer coupled to the detector; the method including receiving a sequence of time-domain frequency-modulated samples, transforming the sequence of time-domain samples into a spectrum of frequency-domain data, and matching an actual energy distribution over a plurality of discrete frequencies in the frequency-domain data with an expected energy distribution of the preamble to determine frequency error.

公开(公告)号：US10079705B1

公开(公告)日：2018-09-18

申请号：US15463502

申请日：2017-03-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jacob C. Sharpe ,  Fei Tong ,  Myeong-Cheol Shin ,  Jeongtaek Lee

IPC: H04L7/04 ,  H04L27/12 ,  H04W28/14 ,  H04L27/26 ,  H04W4/00 ,  H04W4/80

Abstract: A receiver configured to receive a frequency-modulated transmission having a preamble and a corresponding method are provided, the receiver having a buffer coupled to an input terminal for receiving the transmission, a time-to-frequency transformer coupled to the buffer, an energy aggregator coupled to the transformer, a preamble detector coupled to the aggregator, and a symbol synchronizer coupled to the detector; the method including receiving a sequence of time-domain frequency-modulated samples, transforming the sequence of time-domain samples into a spectrum of frequency-domain data, and matching an actual energy distribution over a plurality of discrete frequencies in the frequency-domain data with an expected energy distribution of the preamble to determine frequency error.

公开(公告)号：US09306781B2

公开(公告)日：2016-04-05

申请号：US14676270

申请日：2015-04-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Myeong-Cheol Shin ,  Tae-Sung Kim ,  Jin-Yong Chung

IPC: H04L27/14

CPC classification number: H04L27/14 ,  H04L25/03178 ,  H04L25/03273

Abstract: An apparatus and a method are provided for receiving a signal in a communication system supporting a Gaussian frequency shift keying (GFSK) modulation scheme. The method includes receiving the signal; and estimating a codeword vector by performing a signal detecting operation based on a GFSK-maximum likelihood sequence estimation (MLSE) scheme, which is based on a GFSK modulation scheme and an MLSE scheme, on the received signal. States of a Viterbi trellis that are used in the GFSK-MLSE scheme are determined based on the GFSK modulation scheme.

Abstract translation: 提供一种用于在支持高斯频移键控（GFSK）调制方案的通信系统中接收信号的装置和方法。 该方法包括接收信号; 以及基于在所接收的信号上基于GFSK调制方案和MLSE方案的GFSK最大似然序列估计（MLSE）方案来执行信号检测操作来估计码字矢量。 基于GFSK调制方案确定在GFSK-MLSE方案中使用的维特比网格的状态。