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1.发明授权公开(公告)号：US09197353B2
公开(公告)日：2015-11-24
申请号：US14038420
申请日：2013-09-26
Inventor： Dong-Soo Lee , Sung-Chang Kim , Geun-Yong Kim , Hark Yoo , Young-Suk Lee
IPC: H04J14/02
CPC classification number: H04J14/025 , H04J14/0252
Abstract: Provided is an OLT including a wavelength splitter that splits all upstream optical signals with different wavelengths received from at least one ONU according to wavelength, at least one receiver that receive the optical signals split by the wavelength splitter according to wavelength, a wavelength selector that allocates an upstream transmission wavelength of the at least one ONU, and a transmitter that transmits wavelength allocation information allocated by the wavelength selector to the at least one ONU.
Abstract translation: 提供了一种OLT，其包括波长分离器，其根据波长分离从至少一个ONU接收的不同波长的所有上游光信号，至少一个接收器，其根据波长接收由波长分离器分离的光信号;波长选择器，其分配 所述至少一个ONU的上行传输波长，以及将由所述波长选择器分配的波长分配信息发送到所述至少一个ONU的发射机。
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公开(公告)号：US12218801B2
公开(公告)日：2025-02-04
申请号：US17519352
申请日：2021-11-04
Inventor： Ryang Soo Kim , Geun Yong Kim , Sung Chang Kim , Hark Yoo , Jae In Kim , Chor Won Kim , Hee Do Kim , Byung Hee Son
Abstract: Disclosed is an adaptive deep learning inference system that adapts to changing network latency and executes deep learning model inference to ensure end-to-end data processing service latency when providing a deep learning inference service in a mobile edge computing (MEC) environment. An apparatus and method for providing a deep learning inference service performed in an MEC environment including a terminal device, a wireless access network, and an edge computing server are provided. The apparatus and method provide deep learning inference data having deterministic latency, which is fixed service latency, by adjusting service latency required to provide a deep learning inference result according to a change in latency of the wireless access network when at least one terminal device senses data and requests a deep learning inference service.
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公开(公告)号：US09860011B2
公开(公告)日：2018-01-02
申请号：US15173436
申请日：2016-06-03
Inventor： Geun Yong Kim , Hark Yoo , Sung Chang Kim , Dong Soo Lee
CPC classification number: H04J14/0227 , H04J14/0282 , H04L7/0075
Abstract: Disclosed is a method and an apparatus for selecting a wavelength in a hybrid Passive Optical Network (PON) system. The method of selecting a wavelength by a wavelength selecting apparatus in a hybrid passive optical network system includes: performing synchronization with any one of a plurality of downstream wavelengths; when the synchronization is succeeded, determining whether to select the synchronized downstream wavelength for a registration to an optical line terminal; and when it is determined to select the synchronized downstream wavelength, performing the registration to the optical line terminal through the synchronized downstream wavelength.
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公开(公告)号：US09614612B2
公开(公告)日：2017-04-04
申请号：US14591945
申请日：2015-01-08
Inventor： Geun Yong Kim , Sung Chang Kim , Hark Yoo , Hee Do Kim , Dong Soo Lee
IPC: H04B10/032
CPC classification number: H04B10/032 , H04Q11/0067 , H04Q2011/0081
Abstract: A fast protection switching method for a Passive Optical Network (PON). When performing protection switching from an operation link (an operation network) to a protection link (a protection network) in a PON, the fast protection switching method enables rapidly updating Equalization Delay (EqD) values, even if the EqD values are different for Optical Network Terminals (ONTs) of varying distances.
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5.发明授权公开(公告)号：US09553692B2
公开(公告)日：2017-01-24
申请号：US14689650
申请日：2015-04-17
Inventor： Hark Yoo , Dong Soo Lee , Geun Yong Kim , Sung Chang Kim , Hee Do Kim , Jae In Kim
IPC: H04B10/08 , H04J14/08 , H04B10/564 , H04B10/079 , H04J14/02
CPC classification number: H04B10/564 , H04B10/07953 , H04B10/07955 , H04J14/0221 , H04J14/0267 , H04J14/0282 , H04J14/08
Abstract: Disclosed are a method and system for determining and controlling power of an optical transmitter of an optical network unit (ONU) for a time and wavelength division multiplexing passive optical network (TWDM-PON). The system includes an RSSI collector configured to collect received signal strength indication (RSSI) information from upstream optical signals received from the ONUs connected to optical line terminal (OLT) ports, an ONU power level determiner configured to gather the pieces of RSSI information about the ONUs from the RSSI collector, and to determine power of optical transmitters of the ONUs based on the gathered information, and a power mode controller configured to receive power mode setting information of the optical transmitters of the ONUs from the ONU power level determiner, and to generate a physical layer operation and maintenance (PLOAM) message to control power modes of the ONUs based on the received power mode setting information.
Abstract translation: 公开了用于时分和波分复用无源光网络（TWDM-PON）的用于光网络单元（ONU）的光发射机功率的方法和系统。 该系统包括：RSSI收集器，被配置为从从连接到光线路终端（OLT）端口的ONU接收的上游光信号中收集接收信号强度指示（RSSI）信息; ONU功率电平确定器，被配置为收集关于 基于所收集的信息来确定ONU的光发射机的功率;以及功率模式控制器，被配置为从ONU功率电平确定器接收ONU的光发射机的功率模式设置信息，以及 生成物理层操作和维护（PLOAM）消息，以基于接收到的功率模式设置信息来控制ONU的功率模式。
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Patent Agency Ranking
公开(公告)号：US09698900B2
公开(公告)日：2017-07-04
申请号：US15142626
申请日：2016-04-29
Inventor： Hark Yoo , Yongseok Yoo , Geun Yong Kim , Dongsoo Lee
IPC: H04B10/00 , H04B10/03 , H04B10/272 , H04J14/02 , H04J14/00
CPC classification number: H04B10/03 , H04B10/272 , H04B2210/071 , H04J14/0282
Abstract: Disclosed herein are an optical network unit and a method for controlling the unit. In a passive optical network system, an optical transceiver of the optical network unit performs a wavelength change of an optical signal according to a wavelength setting command transferred from a media access control (MAC) unit and monitors a wavelength change state and reports the monitored wavelength change state to the MAC unit. When the wavelength malfunction occurs, the MAC unit blocks an uplink optical transmission of the optical transceiver.
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公开(公告)号：US09609403B2
公开(公告)日：2017-03-28
申请号：US14484433
申请日：2014-09-12
Inventor： Geun Yong Kim , Dong Soo Lee , Sung Chang Kim , Hark Yoo , Young Suk Lee , Hee Do Kim
IPC: H04J14/02 , H04J3/16 , H04B10/564 , H04Q11/00
CPC classification number: H04Q11/0067 , H04Q2011/0064 , H04Q2011/0079
Abstract: Provided is a method of saving power in a passive optical network (PON) system including an optical line terminal (OLT) and a plurality of optical network units (ONUs), the OLT including an optical transceiver to communicate with at least one ONU through an optical line, and a controller to control the optical transceiver to transmit an upstream bandwidth map to the ONU at a predetermined transmission interval, wherein the transmission interval is determined based on a desired upstream data service delay time.
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8.发明授权Apparatus and method for detecting optical line fault in passive optical network 有权无源光网络光线路故障检测装置及方法公开(公告)号：US09553665B2
公开(公告)日：2017-01-24
申请号：US14620340
申请日：2015-02-12
Inventor： Sung-Chang Kim , Hark Yoo , Geun-Yong Kim , Dong-Soo Lee , Hee-Do Kim
IPC: H04B10/08 , H04B10/073 , H04J14/02 , H04B10/077
CPC classification number: H04B10/073 , H04B10/0771 , H04B10/0773 , H04J14/02
Abstract: Disclosed herein is an apparatus and method for detecting an optical line fault in a Passive Optical Network (PON). The apparatus includes an optical distribution unit configured to, when a multiplexed signal of a downstream light signal and a monitoring light signal is input, distribute the multiplexed signal to an Optical Network Unit (ONU) of a first optical path and to a second optical path. An optical layer management unit is installed in the second optical path and is configured to set a time at which the monitoring light signal of the multiplexed signal provided to the second optical path is received to a starting time of monitoring light measurement, compare a monitoring light signal reflected and returned from the ONU with a signal pattern obtained when no fault occurs, and then determine whether a fault has occurred in a distribution network.
Abstract translation: 本文公开了一种用于检测无源光网络（PON）中的光线路故障的装置和方法。 该装置包括：光分配单元，被配置为当下行光信号和监视光信号的复用信号被输入时，将复用的信号分配到第一光路的光网络单元（ONU）和第二光路 。 光层管理单元安装在第二光路中，并且被配置为设置接收到提供给第二光路的复用信号的监视光信号到监视光测量的开始时间的时间，比较监视光 在没有发生故障的情况下用ONU获得的信号从ONU反射并返回，然后确定配电网络中是否发生故障。
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9.发明授权Optical line terminal and optical network unit for supporting sleep mode thereof 有权用于支持其睡眠模式的光线路终端和光网络单元公开(公告)号：US09184851B2
公开(公告)日：2015-11-10
申请号：US13798298
申请日：2013-03-13
Inventor： Geun Yong Kim , Sung Chang Kim , Hark Yoo , Youngsuk Lee , Dongsoo Lee , Young Sun Kim
IPC: H04B10/564 , H04B10/08 , H04B10/272
CPC classification number: H04B10/564 , H04B10/272
Abstract: An optical line terminal is provided which includes an upward band allocating unit configured to send an upward bandwidth allocation map to an optical network unit and to determine a sleep mode of the optical network unit according to whether a response message corresponding to the upward bandwidth allocation map is received; and an alarm unit configured to determine an upward bandwidth allocation map transfer operation as a normal operation according to an operation of the sleep mode.
Abstract translation: 提供了一种光线路终端，其包括向上频带分配单元，被配置为向光网络单元发送向上带宽分配映射，并且根据对应于向上带宽分配映射的响应消息来确定光网络单元的睡眠模式 被收到 以及警报单元，被配置为根据睡眠模式的操作来确定向上带宽分配映射传送操作为正常操作。
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公开(公告)号：US09002199B2
公开(公告)日：2015-04-07
申请号：US13745144
申请日：2013-01-18
Inventor： Mun Seob Lee , Dong Soo Lee , Geun Yong Kim , Hark Yoo , Sung Chang Kim , Young Suk Lee
IPC: H04B10/08 , H04B10/071 , H04B10/00
CPC classification number: H04B10/071 , G01M11/3136 , G01M11/3145
Abstract: An apparatus and method for monitoring an optical line is provided. The optical line monitoring apparatus may include a comparison unit to extract first identification information about an optical network terminal (ONT) from reflected data that is reflected and received from the optical line, and to compare the extracted first identification information to predetermined second identification information about the ONT, and a processor to analyze a state of the optical line using the reflected data when the first identification information is identical to the second identification information.
Abstract translation: 提供一种用于监视光线路的装置和方法。 光线路监视装置可以包括比较单元，用于从光线反射和接收的反射数据中提取关于光网络终端（ONT）的第一识别信息，并将所提取的第一识别信息与预定的第二识别信息进行比较 ONT，以及处理器，当第一识别信息与第二识别信息相同时，使用反射数据分析光线路的状态。
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