公开(公告)号：US20180242269A1

公开(公告)日：2018-08-23

申请号：US15599294

申请日：2017-05-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tiangao Gou ,  Pranav Dayal ,  Niranjan Ratnakar ,  Gennady Feygin ,  Jungwon Lee

IPC: H04W56/00

CPC classification number: H04W56/004 ,  H03D3/009 ,  H03D2200/0045 ,  H04L27/364

Abstract: A method for providing IQ mismatch (IQMM) compensation includes: sending a single tone signal at an original frequency; determining a first response of an impaired signal at the original frequency and a second response of the impaired signal at a corresponding image frequency; determining an estimate of a frequency response of the compensation filter at the original frequency based on the first response and the second response; repeating the steps of sending the single tone signal, determining the first response and the second response, and determining the estimate of the frequency response of the compensation filter by sweeping the single tone signal at a plurality of steps to determine a snapshot of the frequency response of the compensation filter; converting the frequency response of the compensation filter to a plurality of time-domain filter taps of the compensation filter by performing a pseudo-inverse of a time-to-frequency conversion matrix; and determining a time delay that provides a minimal LSE for the corresponding time domain taps.

公开(公告)号：US12028821B2

公开(公告)日：2024-07-02

申请号：US17478622

申请日：2021-09-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tiangao Gou ,  Pranav Dayal ,  Niranjan Ratnakar ,  Gennady Feygin ,  Jungwon Lee

IPC: H04W56/00 ,  H03D3/00 ,  H04L27/36

CPC classification number: H04W56/004 ,  H03D3/009 ,  H04L27/364 ,  H03D2200/0045

Abstract: A method for providing IQ mismatch (IQMM) compensation includes: estimating an overall frequency response of a compensation filter by stepping through a frequency range starting at an initial frequency and performing (1) through (3) at each step, a selected frequency at each step being a multiple of a subcarrier frequency of the initial frequency: (1) sending a single tone signal at the selected frequency, (2) determining a first response of a mismatched signal at the selected frequency and a second response of the mismatched signal at an image frequency of the selected frequency, and (3) estimating a frequency response of the compensation filter at the selected frequency based on the first response and the second response; generating time-domain filter taps based on the estimated overall frequency response of the compensation filter; determining a time delay based on the time-domain filter taps; and generating a compensated signal based on the time delay.

公开(公告)号：US20210239819A1

公开(公告)日：2021-08-05

申请号：US16920289

申请日：2020-07-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Anders Sven Mattsson ,  Gennady Feygin ,  Pranav Dayal

IPC: G01S13/04 ,  G01S7/03

Abstract: A system and method for detecting proximity of a user within a particular distance of a radio device is disclosed. The method includes transmitting a signal via a transmitter and antenna of the radio device, receiving a received signal via a receiver and the antenna, processing the received signal for distinguishing a signal reflected from the user from a leaked portion of the transmitted signal, and reducing power of the radio device in response to the processing.

公开(公告)号：US09966977B1

公开(公告)日：2018-05-08

申请号：US15402651

申请日：2017-01-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Liangbin Li ,  Pranav Dayal ,  Jungwon Lee ,  Gennady Feygin

IPC: H04B1/00 ,  H04B3/462

CPC classification number: H04B1/0042 ,  H04B1/0046 ,  H04B3/462

Abstract: Apparatuses (and methods of manufacturing same), systems, and methods concerning polyphase digital filters are described. In one aspect, an apparatus is provided, including at least one pair of subfilters, each having symmetric coefficients, and a lattice comprising two adders and feedlines corresponding to each of the at least one pair of subfilters, each having symmetric coefficients. In one aspect, the apparatus is a polyphase finite impulse response (FIR) digital filter, including an interpolator and a decimator, where each of the interpolator and the decimator have at least one pair of subfilters, each having symmetric coefficients, and a lattice comprising two adders and feedlines corresponding to each of the at least one pair of subfilters, each having symmetric coefficients.

公开(公告)号：US09692556B1

公开(公告)日：2017-06-27

申请号：US15052758

申请日：2016-02-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Pranav Dayal ,  Jungwon Lee ,  Gennady Feygin ,  Jaeyoung Kim

IPC: H04L27/00 ,  H04L1/00 ,  H04B1/30 ,  H04L25/03

CPC classification number: H04L1/0054 ,  H04B1/30 ,  H04L2025/03636

Abstract: A communication system includes: an inter-device interface configured to receive received signal including communication content; a communication circuit, coupled to the inter-device interface, configured to: determine an in-phase signal-component and a quadrature signal-component based on the received signal, calculate an adjustment value including a first adjustment and a second adjustment based on the in-phase signal-component and the quadrature signal-component according to a maximum-likelihood mechanism, and adjust the received signal based on the adjustment value for reducing an in-phase/quadrature imbalance between the in-phase signal-component and the quadrature signal-component in processing the communication content.

公开(公告)号：US20140273906A1

公开(公告)日：2014-09-18

申请号：US14188559

申请日：2014-02-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Gennady Feygin ,  Joongsuk Park ,  Vladislav Sorokine ,  Inyup Kang

IPC: H04L1/24 ,  H04B1/10

CPC classification number: H04L1/20

Abstract: A method of operation of a wireless communication system includes: filtering a composite input from a radio frequency signal; developing a raw digital stream by applying an analog correction to the composite input; sampling an extracted signal, from the raw digital stream, by a primary analog-to-digital converter; and monitoring, by a correction control block, the extracted signal including adjusting the analog correction by a digital control from the correction control block.

Abstract translation: 无线通信系统的操作方法包括：从射频信号对复合输入进行滤波; 通过对复合输入应用模拟校正来开发原始数字流; 从原始数字流中抽取提取的信号，由主要模拟 - 数字转换器采样; 以及通过校正控制块监视所提取的信号，包括通过来自校正控制块的数字控制来调整模拟校正。

公开(公告)号：US20140270025A1

公开(公告)日：2014-09-18

申请号：US14148490

申请日：2014-01-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Gennady Feygin ,  Inyup Kang

IPC: H04L7/00

CPC classification number: H03L7/00 ,  H03L7/0891

Abstract: A method of operation of a wireless communication system includes: synthesizing an incoming clock reference by differentiating an even cycle signal and an odd cycle signal; commutating a pair of resistors (R1, R2) based on the even cycle signal and the odd cycle signal; and controlling an amplifier output by the pair of the resistors (R1, R2) for the purpose of mitigating the effects of mismatch of the pair of resistors.

Abstract translation: 无线通信系统的操作方法包括：通过对偶数周期信号和奇数周期信号进行微分来合成输入时钟基准; 基于偶数周期信号和奇数周期信号对一对电阻器（R1，R2）进行换向; 并且通过该对电阻器（R1，R2）控制放大器输出，以减轻该对电阻器的失配的影响。