公开(公告)号：US20180123709A1

公开(公告)日：2018-05-03

申请号：US15421998

申请日：2017-02-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Binnan ZHUANG ,  Hongbing CHENG ,  Jungwon LEE

IPC: H04B17/336 ,  H04B17/318

CPC classification number: H04B17/336 ,  H04B17/318

Abstract: A method and apparatus are provided. The method includes receiving a signal sequence and a noise sequence, determining a first absolute value sum approximation of a receive power of the signal sequence, determining a second absolute value sum approximation of a noise power of the noise sequence, and determining a signal-to-noise ratio (SNR) based on the first absolute value sum approximation and the second absolute value sum approximation.

公开(公告)号：US20190147606A1

公开(公告)日：2019-05-16

申请号：US16016232

申请日：2018-06-22

Applicant: Samsung Electronics Co., Ltd

Inventor： Binnan ZHUANG ,  Dongwoon Bai ,  Jungwon Lee

IPC: G06T7/285 ,  H04N13/282 ,  H04N13/204 ,  H04N5/232 ,  G06T5/00 ,  G06T7/80

Abstract: An apparatus and method of five dimensional (5D) video stabilization with camera and gyroscope fusion are herein disclosed. According to one embodiment, an apparatus includes a feature matcher configured to receive an image sequence and determine feature pairs in the image sequence; a residual two-dimensional (2D) translation estimator connected to the feature matcher and configured to determine a raw 2D translation path; a residual 2D translation smoother connected to the residual 2D translation estimator and configured to determine a 2D smoothed translation path; a distortion calculator connected to the residual 2D translation estimator and the residual 2D translation smoother and configured to determine a distortion grid; and a distortion compensator connected to the distortion calculator and configured to compensate for distortion in the image sequence.

公开(公告)号：US20180192310A1

公开(公告)日：2018-07-05

申请号：US15455979

申请日：2017-03-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Binnan ZHUANG ,  Hongbing CHENG ,  Jungwon LEE

IPC: H04W24/08 ,  H04B7/06 ,  H04L27/26 ,  H04B17/345

CPC classification number: H04B17/345 ,  H04B7/0626 ,  H04B17/309 ,  H04L25/067 ,  H04L27/2657 ,  H04L27/2675 ,  H04L27/2679

Abstract: A method and apparatus are provided. The method includes receiving, by at least one antenna of a receiver, at least one signal from a transceiver, detecting at least one data symbol within the at least one signal, determining a probability associated with the at least one detected data symbol, determining channel state information (CSI) of at least one channel between the transceiver and the at least one antenna of the receiver, and estimating a common phase error (CPE) of the at least one signal based on the probabilities associated with the at least one detected data symbol and the CSI of the at least one channel.

公开(公告)号：US20200151237A1

公开(公告)日：2020-05-14

申请号：US16742231

申请日：2020-01-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Binnan ZHUANG ,  Dongwoon Bai ,  Jungwon Lee

IPC: G06F17/12 ,  H04N5/232 ,  G06T5/00 ,  H04N13/282 ,  G06T7/285 ,  G06T7/80 ,  G06F17/16 ,  G06F7/58 ,  H04N19/00

Abstract: An apparatus and method of low complexity optimization solver for path smoothing with constraint variation are herein disclosed. According to one embodiment, an apparatus includes an L1 central processing unit (CPU) configured to transform an L1 trend filtering problem to a primal-dual linear programming (LP) optimization problem pair; and an L1 arithmetic logic unit (ALU) connected to the L1 CPU and configured to solve a primal problem of the primal-dual LP optimization problem pair with an extended full tableau simplex method.

公开(公告)号：US20180196906A1

公开(公告)日：2018-07-12

申请号：US15465181

申请日：2017-03-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Binnan ZHUANG ,  Dongwoon BAI ,  Jungwon LEE

IPC: G06F17/50

CPC classification number: G06F17/5036 ,  G06F17/5072 ,  G06F17/5081

Abstract: An apparatus and method for modelling a random process using reduced length least-squares autoregressive parameter estimation is herein disclosed. The apparatus includes an autocorrelation processor, configured to generate or estimate autocorrelations of length m for a stochastic process, where m is an integer; and a least-squares (LS) estimation processor connected to the autocorrelation processor and configured to model the stochastic process by estimating pth order autoregressive (AR) parameters using LS regression, where p is an integer much less than m. The method includes generating, by an autocorrelation processor, autocorrelations of length m for a stochastic process, where m is an integer; and modelling the stochastic process, by a least-squares estimation processor, by estimating pth order autoregressive (AR) parameters by least-squares (LS) regression, where p is an integer much less than m.

公开(公告)号：US20180176064A1

公开(公告)日：2018-06-21

申请号：US15883790

申请日：2018-01-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Binnan ZHUANG ,  Jung Hyun Bae ,  Dongwoon Bai ,  Jungwon Lee

IPC: H04L27/26 ,  H04L7/00 ,  H04L7/033 ,  H04L25/02

CPC classification number: H04L27/2662 ,  H04L7/0058 ,  H04L7/033 ,  H04L25/022 ,  H04L25/025 ,  H04L25/0256

Abstract: A user equipment (UE) for channel estimation in a high-speed single-frequency network (HS-SFN) is provided. The UE includes at least one non-transitory computer-readable medium; and at least one processor, which, when executing instructions stored on the at least one non-transitory computer-readable medium, causes the UE to perform a method including calculating an estimated frequency offset (FO) correction for a received signal using at least an FO estimation generated by an automatic frequency control (AFC) module using at least a previously-calculated channel estimate output from a channel estimator (CE) as input in a first feedback loop; and calculating, by the CE, a current channel estimate using at least the received signal adjusted by the estimated FO correction from the first feedback loop and one or more channel parameter estimates generated by the AFC using at least the previously-calculated channel estimate output from the CE as input in a second feedback loop.

公开(公告)号：US20170257246A1

公开(公告)日：2017-09-07

申请号：US15210468

申请日：2016-07-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Binnan ZHUANG ,  Jung Hyun Bae ,  Dongwoon Bai ,  Jungwon Lee

IPC: H04L27/26 ,  H04L7/00 ,  H04L7/033 ,  H04L25/02

CPC classification number: H04L27/2662 ,  H04L7/0058 ,  H04L7/033 ,  H04L25/022 ,  H04L25/025 ,  H04L25/0256

Abstract: Apparatuses (and methods of manufacturing same), systems, and methods for channel interpolation/estimation and/or frequency tracking suitable for a receiver in a high speed single frequency network (HS-SFN) scenario are described. In one aspect, an estimated frequency offset (FO) correction is calculated for a received signal using at least an FO estimation provided by an automatic frequency control (AFC) in a first feedback loop and a channel estimate is calculated using at least the estimated FO and one or more channel parameter estimates from the AFC in a second feedback loop. In another aspect, a phase locked loop (PLL) receives an lth orthogonal frequency division multiplexing (OFDM) symbol and produces a per-tap phase value for each tap i of the lth OFDM symbol. The per-tap phase values of the lth OFDM symbol are used to generate the PLL output, which is also used as input to a feedback loop.