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1.发明授权公开(公告)号：US11487698B2
公开(公告)日：2022-11-01
申请号：US17216322
申请日：2021-03-29
发明人： Shin-Young Ahn , Eun-Ji Lim , Yong-Seok Choi , Young-Choon Woo , Wan Choi
IPC分类号： G06F15/173 , G06N3/08 , H04L67/10 , G06F9/50
摘要： Disclosed herein are a parameter server and a method for sharing distributed deep-learning parameters using the parameter server. The method for sharing distributed deep-learning parameters using the parameter server includes initializing a global weight parameter in response to an initialization request by a master process; performing an update by receiving a learned local gradient parameter from the worker process, which performs deep-learning training after updating a local weight parameter using the global weight parameter; accumulating the gradient parameters in response to a request by the master process; and performing an update by receiving the global weight parameter from the master process that calculates the global weight parameter using the accumulated gradient parameters of the one or more worker processes.
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公开(公告)号：US10162780B2
公开(公告)日：2018-12-25
申请号：US13958241
申请日：2013-08-02
发明人： Yong-Seok Choi
摘要： Disclosed herein are a PCI Express switch and a computer system using the switch, which do not require a separate switch device for communication between computers, and enable a switch to be mounted in each PCI Express (PCIe) device, thus enabling main memory to be shared between the computers. The PCI Express switch is employed in a computer system, and includes a downstream port for transmitting a packet, and an upstream port for receiving the packet, wherein the downstream port and the upstream port are directly connected to another computer system. The present invention has a structure which enables the memory of other computers to be accessed by changing only the structure of a switch within a computer. Accordingly, there is an advantage in that the memory of other computers can be directly accessed without requiring a separate switch device or complicated software for a connection between computers.
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3.发明授权公开(公告)号：US09058266B2
公开(公告)日：2015-06-16
申请号：US13835084
申请日：2013-03-15
发明人： Yong-Seok Choi
IPC分类号： G06F11/07 , G06F13/42 , G06F13/38 , G06F13/10 , G06F5/06 , G06F13/40 , H04J3/06 , H04L7/00 , H04L7/10 , H04J3/07
CPC分类号： G06F11/0793 , G06F5/06 , G06F13/102 , G06F13/385 , G06F13/4013 , G06F13/4027 , G06F13/42 , G06F13/4217 , G06F13/423 , G06F13/4278 , H04J3/062 , H04J3/0629 , H04J3/073 , H04L7/005 , H04L7/10
摘要： Disclosed herein are a deskew apparatus and method for Peripheral Component Interconnect (PCI) Express for compensating for a skew. The deskew apparatus includes a lane data input unit, a lane data alignment unit, and a lane data detection unit. The lane data input unit receives 18-bit data from each of lanes of the PCI Express. The lane data alignment unit aligns the 18-bit data using a COM symbol. The lane data detection unit detects a change in a state of alignment of the 18-bit data attributable to deletion or addition of an SKP symbol when the 18-bit data is aligned, and to perform synchronization between the lanes.
摘要翻译： 本文公开了用于补偿偏斜的外围部件互连（PCI）Express的去歪斜装置和方法。 该偏斜设备包括车道数据输入单元，车道数据对准单元和车道数据检测单元。 车道数据输入单元从PCI Express的每个通道接收18位数据。 车道数据对齐单元使用COM符号对齐18位数据。 车道数据检测单元检测当18位数据对齐时归因于SKP符号的删除或添加的18位数据的对齐状态的变化，并且执行车道之间的同步。
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4.发明授权Radio measurement method and radio measurement apparatus using multi-antenna channel multiplex 有权无线电测量方法和使用多天线信道复用的无线电测量装置公开(公告)号：US09548806B2
公开(公告)日：2017-01-17
申请号：US14211812
申请日：2014-03-14
发明人： Sang Tae Kim , Gwangmoon Park , Seong Yun Lee , Haeng Sook Ro , Mi-Kyung Suk , Yong-Seok Choi
IPC分类号： H04B7/08
CPC分类号： H04B7/0874 , H04B7/086
摘要： A radio measurement apparatus comprising: an array antennal selection unit selecting array antennas corresponding to received signals; a reference path selection unit selecting a reference array antenna; a signal processing unit selecting a reference antenna channel through analysis of signal characteristics measured through two reception channels; a sequential channel multiplex unit determining sequentially inputting received signals of remaining array antennas to output the sequentially input signals to a receiver; and a correction signal input unit compensating amplitude and phase characteristics of the respective reception channels.
摘要翻译： 一种无线电测量装置，包括：阵列天线选择单元，选择与接收信号相对应的阵列天线; 参考路径选择单元，选择参考阵列天线; 信号处理单元，通过分析通过两个接收信道测量的信号特性来选择参考天线信道; 顺序信道多路复用单元确定顺序输入剩余阵列天线的接收信号，以将顺序输入的信号输出到接收机; 以及校正信号输入单元，用于补偿各个接收信道的幅度和相位特性。
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5.发明授权公开(公告)号：US10990561B2
公开(公告)日：2021-04-27
申请号：US15984262
申请日：2018-05-18
发明人： Shin-Young Ahn , Eun-Ji Lim , Yong-Seok Choi , Young-Choon Woo , Wan Choi
IPC分类号： G06F15/16 , G06F15/173 , G06N3/08 , H04L29/08 , G06F9/50
摘要： Disclosed herein are a parameter server and a method for sharing distributed deep-learning parameters using the parameter server. The method for sharing distributed deep-learning parameters using the parameter server includes initializing a global weight parameter in response to an initialization request by a master process; performing an update by receiving a learned local gradient parameter from the worker process, which performs deep-learning training after updating a local weight parameter using the global weight parameter; accumulating the gradient parameters in response to a request by the master process; and performing an update by receiving the global weight parameter from the master process that calculates the global weight parameter using the accumulated gradient parameters of the one or more worker processes.
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公开(公告)号：US10831676B2
公开(公告)日：2020-11-10
申请号：US16165891
申请日：2018-10-19
发明人： Yong-Seok Choi , Shin-Young Ahn , Eun-Ji Lim , Young-Choon Woo , Wan Choi
IPC分类号： G06F12/1081 , G06F13/28 , G06F13/16
摘要： Disclosed herein are an apparatus and method for interfacing with common memory. The apparatus for interfacing with common memory includes a computer-input/output (I/O)-interface-protocol-processing unit for receiving a packet for accessing common memory from a computer; a direct memory access unit for transforming the packet into an instruction for performing any one of reading from and writing to the common memory; and a common memory interface unit for transmitting the instruction to the common memory and receiving information about whether execution of the instruction is completed from the common memory.
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7.发明授权Apparatus and method for interfacing between central processing unit and main memory unit 有权中央处理单元与主存储单元之间接口的装置和方法公开(公告)号：US09379824B2
公开(公告)日：2016-06-28
申请号：US14551826
申请日：2014-11-24
发明人： Yong-Seok Choi , Hyuk-Je Kwon , Gyung-Ock Kim
IPC分类号： H04B10/80
CPC分类号： H04B10/801
摘要： Disclosed are an apparatus and method for interfacing between a central processing unit (CPU) and a main memory unit, whereby a shared cache memory unit and the main memory unit are connected to each other using one optical signal transmission line. The apparatus for interfacing between the CPU and the main memory unit includes: a master optical connection protocol engine, converting operation control signals received from a shared cache memory unit of the CPU into serial signals; a first electrical-to-optical (E/O) converter, converting the serial signals converted by the master optical connection protocol engine into optical signals; a second E/O converter, converting the optical signals converted by the first E/O converter into serial signals; a slave optical connection protocol engine, converting the serial signals converted by the second E/O converter into operation control signals; and a memory controller having access to the main memory unit.
摘要翻译： 公开了一种用于在中央处理单元（CPU）和主存储单元之间进行接口的装置和方法，由此共享高速缓冲存储器单元和主存储器单元使用一个光信号传输线相互连接。 用于在CPU和主存储器单元之间进行接口的装置包括：主光连接协议引擎，将从CPU的共享高速缓冲存储器单元接收的操作控制信号转换为串行信号; 第一电光转换器，将由主光连接协议引擎转换的串行信号转换为光信号; 第二E / O转换器，将由第一E / O转换器转换的光信号转换为串行信号; 从属光连接协议引擎，将由第二E / O转换器转换的串行信号转换成操作控制信号; 以及具有访问主存储器单元的存储器控制器。
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公开(公告)号：US10067908B2
公开(公告)日：2018-09-04
申请号：US15595094
申请日：2017-05-15
发明人： Chung Sup Kim , Kanghee Kim , Sang-Won Kim , Ki Cheol Tae , Heung Yong Kang , Yong-Seok Choi
摘要： An apparatus for calculating a reception time of a wireless communication signal is disclosed. The apparatus includes a downconverted signal generator configured to generate a downconverted signal, a baseband signal, by downconverting a frequency of a signal received from a transmission source, a modulated signal generator configured to generate a modulated signal by multiplying the downconverted signal by a randomly generated reference signal, a time difference calculator configured to calculate a time difference between the modulated signal and the reference signal by cross-correlating the modulated signal and the reference signal, and a reception time calculator configured to calculate a reception time of the signal received from the transmission source using a point in time at which the reference signal is generated and the time difference between the modulated signal and the reference signal.
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公开(公告)号：US09396149B2
公开(公告)日：2016-07-19
申请号：US13837566
申请日：2013-03-15
发明人： Yong-Seok Choi
CPC分类号： G06F13/4022
摘要： The present invention relates to a PCIe switch apparatus and a method of controlling the connection thereof. The PCIe switch apparatus includes a PCIe photoconversion unit for converting an electrical signal input from a local host into packet data and converting the converted packet data into an optical signal. A PCIe slot board unit reconverts the optical signal into the packet data, reconverts the packet data into the electrical signal, and outputs the electrical signal to a PCIe-based device. An optical cable connects the PCIe photoconversion unit and the PCIe slot board unit to each other. The PCIe switch apparatus controls a long-distance communication interface between the local host and the PCIe-based device.
摘要翻译： 本发明涉及一种PCIe开关装置及其连接方法。 PCIe开关装置包括PCIe光电转换单元，用于将从本地主机输入的电信号转换为分组数据，并将转换的分组数据转换为光信号。 PCIe插槽板单元将光信号转换为分组数据，将分组数据重新转换为电信号，并将电信号输出到基于PCIe的设备。 光缆将PCIe光电转换单元和PCIe插槽板单元彼此连接。 PCIe交换机控制本地主机和基于PCIe的设备之间的长距离通信接口。
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10.发明授权Digital cumulative spectrum analysis apparatus and method for direction finding and location 有权数字累积频谱分析装置及方位查找和定位方法公开(公告)号：US08805644B2
公开(公告)日：2014-08-12
申请号：US14051525
申请日：2013-10-11
发明人： Gwangmoon Park , Sang-Tae Kim , Seong-Yun Lee , Haeng-Sook Ro , Mi-Kyung Suk , Heung-Yong Kang , Yong-Seok Choi
IPC分类号： G01C17/00
摘要： A digital spectrum analysis apparatus and method for direction finding (DF) and location is provided. The digital spectrum analysis apparatus includes: a multi-channel unit configured to convert signals inputted from antennas into digital signals, reduce a sampling rate of the digital signals by using a digital down converter (DDC), and convert the digital signals into baseband complex signals, and having a plurality of channels; a DF estimator configured to estimate the direction of the signal; a spectrum processing unit configured to map any one of a bearing and a power level of the baseband complex signal into coordinate system, and allocate different colors to one of the bearings and the power levels depending on the accumulation ratio of one of the bearing and the power level; and a display unit configured to display the power level and the bearing with colors.
摘要翻译： 提供了一种用于方向查找（DF）和位置的数字频谱分析装置和方法。 数字频谱分析装置包括：多通道单元，被配置为将从天线输入的信号转换为数字信号，通过使用数字下变频器（DDC）降低数字信号的采样率，并将数字信号转换为基带复信号 并具有多个通道; DF估计器，被配置为估计所述信号的方向; 频谱处理单元，被配置为将所述基带复合信号的方位和功率电平中的任一个映射到坐标系中，并且根据所述轴承和所述轴承的一个的累积比，将不同的颜色分配给所述轴承和所述功率电平中的一个 能量等级; 以及显示单元，被配置为用颜色显示功率水平和轴承。
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