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公开(公告)号：US20190146296A1
公开(公告)日：2019-05-16
申请号：US15918718
申请日：2018-03-12
Inventor： CHAN IL YEO , Dong Hoon SON , Hyun Seo KANG , Keo-Sik KIM , Kyeeun KIM , Sung Chang KIM , Ji Hyoung RYU , Gi Hyeon MIN , Si Woong PARK , Hyoungjun PARK , Dongsoo LEE , Young Soon HEO
IPC: G02F1/163 , G02F1/133 , G02F1/157 , G02F1/1335
Abstract: Disclosed is a variable optical attenuator. The variable optical attenuator includes an electrochromic device having a reflective property or a transflective property, a lens configured to convert input light to focused light or collimated light and input the focused light or the collimated light to the electrochromic device, and an outputter configured to output light reflected from the electrochromic device, in which the electrochromic device is configured to attenuate an intensity of the input light by controlling a reflectivity and a transmissivity of the input light based on an element included in the electrochromic device and a voltage to be applied to the electrochromic device.
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公开(公告)号：US20190128733A1
公开(公告)日：2019-05-02
申请号：US15870012
申请日：2018-01-12
Inventor： Hyun Seo KANG , Kyeeun KIM , Keo-Sik KIM , Sung Chang KIM , Ji Hyoung RYU , Gi Hyeon MIN , Si Woong PARK , Hyoungjun PARK , Dong Hoon SON , CHAN IL YEO , Dongsoo LEE , Young Soon HEO
IPC: G01J3/02
Abstract: Disclosed is a spectroscopic device including a planar lightwave circuit to which light passing through an optical fiber is input, a wavelength divider configured to divide a wavelength of light passing through the planar lightwave circuit, a beam splitter configured to divide a traveling direction of light passing through the wavelength divider into an external sample inlet and an internal sample inlet and adjust power of the divided light, a charge-coupled device (CCD) image sensor configured to covert light transmitted from the internal sample inlet to an electrical signal or convert light reflected by the external sample inlet to an electrical signal, a control and signal processor configured to process the electrical signal to indicate a light intensity based on each wavelength, and an input and output interface configured to perform a spectrum analysis for each wavelength using the processed electrical signal.
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13.发明申请METHOD AND APPARATUS FOR SELECTING WAVELENGTH IN HYBRID PASSIVE OPTICAL NETWORK SYSTEM 有权在混合被动光网络系统中选择波长的方法和装置公开(公告)号：US20160373207A1
公开(公告)日：2016-12-22
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.
Abstract translation: 公开了一种在混合无源光网络（PON）系统中选择波长的方法和装置。 在混合无源光网络系统中通过波长选择装置选择波长的方法包括：与多个下行波长中的任何一个进行同步; 当同步成功时，确定是否选择同步的下行波长用于注册到光线路终端; 并且当确定选择同步的下行波长时，通过同步的下行波长对光线路终端进行配准。
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14.发明申请METHOD FOR POWER SAVING IN OPTICAL ACCESS NETWORK BY USING SYNCHRONIZED SLEEP CYCLE 审中-公开通过使用同步休眠周期在光接入网络中节电的方法公开(公告)号：US20160020913A1
公开(公告)日：2016-01-21
申请号：US14446949
申请日：2014-07-30
Inventor： Sung Chang KIM , Geun Yong KIM , Hee Do KIM , Hark YOO , Dong Soo LEE , Young Suk LEE
CPC classification number: H04L12/12 , H04B10/27 , H04Q11/0067 , H04Q2011/0079 , Y02D50/30 , Y02D50/40
Abstract: Provided is a power saving method of an optical network terminal and an optical line terminal. The optical network terminal may receive a sleep synchronization message about a first sleep group from the optical line terminal, and when the optical network terminal is included in the first sleep group, may turn OFF an optical transmitter and turn ON the optical transmitter after a first sleep cycle of the first sleep group is elapsed, thereby saving power.
Abstract translation: 提供了一种光网络终端和光线路终端的省电方法。 光网络终端可以从光线路终端接收关于第一睡眠组的睡眠同步消息，并且当光网络终端被包括在第一睡眠组中时，可以关闭光发射机，并且在第一睡眠群组之后接通光发射机 经过了第一个睡眠组的睡眠周期，节省了电力。
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15.发明申请OPTICAL LINE TERMINAL OF PASSIVE OPTICAL NETWORK, AND METHOD FOR CONTROLLING UPSTREAM BAND USING THE SAME 有权被动光网络的光线路终端，以及使用它的上岸带的控制方法公开(公告)号：US20140270768A1
公开(公告)日：2014-09-18
申请号：US13872612
申请日：2013-04-29
Inventor： Hark YOO , Youngsuk LEE , Geun Yong KIM , Sung Chang KIM , Dongsoo LEE
IPC: H04J14/02
CPC classification number: H04J14/0227 , H04J14/08 , H04Q3/0066 , H04Q11/0067 , H04Q2011/0083 , H04Q2011/0086 , H04Q2213/13332
Abstract: Disclosed are an apparatus and a method capable of adjusting an upstream band for a corresponding ONU by detecting a quantity of bands occupied by a packet, not an effective user packet, among upstream transmission bands for each target object of allocation of each band in the OLT to examine whether a queue report is normal, and detecting an ONU, which transmits an abnormal queue report, according to the examination. An OLT of a PON according to an exemplary embodiment of the present disclosure includes: a frame monitoring unit configured to monitor upstream frame data received for each T-CONT; an error detection unit configured to determine whether a queue report error is generated for each T-CONT according to a result of the monitoring; and a band allocation controller configured to allocate an upstream band for an ONU, in which the queue report error is generated, separately from a normal ONU.
Abstract translation: 公开了一种能够通过在OLT的每个频带的每个目标对象的分配的上行传输频带中检测分组而不是有效用户分组占用的频带的数量来调整相应ONU的上行频带的装置和方法 检查队列报告是否正常，根据检查检测发送异常队列报告的ONU。 根据本公开的示例性实施例的PON的OLT包括：帧监视单元，被配置为监视针对每个T-CONT接收的上行帧数据; 错误检测单元，被配置为根据监视结果确定是否为每个T-CONT生成队列报告错误; 以及频带分配控制器，被配置为与正常ONU分开地分配其中生成队列报告错误的ONU的上行频带。
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Patent Agency Ranking
公开(公告)号：US20220150129A1
公开(公告)日：2022-05-12
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：US20200310029A1
公开(公告)日：2020-10-01
申请号：US16741151
申请日：2020-01-13
Inventor： Hyun Jin KIM , Hyoung Jun PARK , Sung Chang KIM , Kye Eun KIM , Ji Hyoung RYU , Gi Hyeon MIN , Si Woong PARK , Dong Hoon SON , Chan Il YEO
Abstract: A multi-channel receiver optical sub assembly module for a fiber Bragg grating sensor according to an embodiment of the present invention includes a housing, a connection socket, an optical bench, a thermoelectric cooler, an arrayed waveguide grating chip, a photodiode array disposed on the optical bench and including a plurality of photodiode chips connected to the optical channels of the arrayed waveguide grating chip, and a printed circuit board which is connected to the other side of the housing while passing through the other side of the housing, of which a portion of a body is disposed on the optical bench, and which is connected to the photodiode array.
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公开(公告)号：US20180128978A1
公开(公告)日：2018-05-10
申请号：US15804653
申请日：2017-11-06
Inventor： Hyun Seo KANG , Eun Kyoung JEON , Jaisang KOH , Keo-Sik KIM , Sung Chang KIM , Jeong Eun KIM , Ji Hyoung RYU , Hyoungjun PARK , Dong Hoon SON , Chan Il YEO , Dongsoo LEE , Seihyoung LEE , Young Soon HEO
CPC classification number: G02B6/12009 , G02B27/00 , H04J14/0202 , H04J14/0215 , H04J14/022 , H04J14/0256
Abstract: Disclosed is a multi-wavelength transmission apparatus including a wavelength divider to divide an optical signal by wavelength and output wavelength-divided optical signals to different positions, the optical signal being received from an optical circulator, a first cylindrical lens to diverge the wavelength-divided optical signals along an X axis and a Y axis and allow the wavelength-divided optical signals to be promoted in a Z-direction, a second cylindrical lens to diverge optical signals output from the first cylindrical lens along the X axis and the Y axis and allow the output optical signals to be promoted in the Z-direction, and a reflector to reflect optical signals output from the second cylindrical lens toward the second cylindrical lens, the first cylindrical lens being identical in shape to the second cylindrical lens and rotated by 90° in an Y-axial direction based on the second cylindrical lens.
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公开(公告)号：US20180081131A1
公开(公告)日：2018-03-22
申请号：US15709247
申请日：2017-09-19
Inventor： Young Soon HEO , Hyun Seo KANG , Keo Sik KIM , Sung Chang KIM , Young Sun KIM , Jeong Eun KIM , Hee Seung KIM , Ji Hyoung RYU , Hyoung Jun PARK , Dong Hoon SON , Chan Il YEO
IPC: G02B6/42
CPC classification number: G02B6/423 , G02B6/4244 , G02B6/4249 , G02B6/425 , G02B6/428
Abstract: Provided is a multi-channel optical subassembly. The multi-channel optical subassembly includes a first sub-mount including first and second areas having different thicknesses, a photoelectric device provided in the first area, a circuit board provided in the second area, a second sub-mount inserted into and fastened to the first guide hole and coupled to the first sub-mount, an optical fiber array fixed to the second sub-mount to provide a path through which light emitted from the photoelectric device is received or transferred, and a micro-lens array mounted on the second sub-mount. The first guide hole is provided in one of the first and second areas. The micro-lens array includes a lens collecting the light between the photoelectric device and the optical fiber array.
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公开(公告)号：US20180067299A1
公开(公告)日：2018-03-08
申请号：US15610010
申请日：2017-05-31
Inventor： Keo Sik KIM , Hyun Seo KANG , Sung Chang KIM , Young Sun KIM , Jeong Eun KIM , Hee Seung KIM , Ji Hyoung RYU , Hyoung Jun PARK , Dong Hoon SON , CHAN IL YEO , Young Soon HEO
Abstract: Provided is an endoscopic apparatus for thermal distribution monitoring, and more particularly, an endoscopic apparatus for thermal distribution monitoring that is capable of providing a functional image in which various images such as a real image and a thermal image, are matched to one another. The endoscopic apparatus includes: an image collecting unit including a thermal image collecting unit collecting a thermal image from an image signal of an object and a real image collecting unit collecting a real image from the image signal of the object; a controller transmitting a control signal to the image collecting unit so as to transmit the image signal to one of the thermal image collecting unit and the real image collecting unit according to a preset period; and a display displaying the collected thermal image and real image.
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