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：US20220094578A1

公开(公告)日：2022-03-24

申请号：US17181391

申请日：2021-02-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Farshid NOWSHADI ,  Jacob C. Sharpe

IPC: H04L27/00 ,  H03M1/06 ,  H03M1/08

Abstract: An apparatus and method for carrier frequency estimation include a carrier frequency estimator having: a frequency input terminal disposed to receive a frequency-domain input signal comprising a plurality of symbols; a plurality of candidate pipelines, each comprising a frequency adder coupled to the frequency input terminal, a bit converter coupled to the frequency adder, a multi-bit buffer coupled to the bit converter; and a correlator coupled to the multi-bit buffer, respectively; and a candidate pipeline selector coupled to the correlators.

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.