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公开(公告)号：US09246628B2
公开(公告)日：2016-01-26
申请号：US13728089
申请日：2012-12-27
Inventor： Seung-Hyun Cho , Jie Hyun Lee , Seung Il Myong , Sang Soo Lee , Jong Hyun Lee , Eui Suk Jung , Kwang Ok Kim
IPC: H04J14/02
CPC classification number: H04J14/0278 , H04J14/02 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0282 , H04J14/0298 , H04J2014/0253
Abstract: Provided is a hybrid passive optical network (PON) system. The hybrid PON system of wavelength division multiplexing (WDM)/time division multiplexing (TDM) may include an optical line terminal (OLT) and an optical network unit (ONU). The OLT and the ONU may transmit a signal based on wavelength reuse using a seed light source and a reflective modulator. The light source may include a seed light source having a single wavelength, two seed light sources having different wavelength bands, and a light source having a wavelength tunable characteristic.
Abstract translation: 提供了一种混合无源光网络（PON）系统。 波分复用（WDM）/时分复用（TDM）的混合PON系统可以包括光线路终端（OLT）和光网络单元（ONU）。 OLT和ONU可以使用种子光源和反射调制器来发射基于波长重用的信号。 光源可以包括具有单个波长的种子光源，具有不同波长带的两个种子光源和具有波长可调特性的光源。
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公开(公告)号：US09130675B2
公开(公告)日：2015-09-08
申请号：US13729521
申请日：2012-12-28
Inventor： Seung Hyun Cho , Jie Hyun Lee , Kwang Ok Kim , Eui Suk Jung , Seung Il Myong , Sang Soo Lee , Jong Hyun Lee
IPC: H04B10/272 , H04B10/564 , H04B10/27 , H04B17/00
CPC classification number: H04B10/27 , H04B10/272 , H04B10/564 , H04B17/103 , H04B17/15
Abstract: A modulation method of an optical modem and a signal transmission apparatus performing the method are disclosed. The modulation method of the optical modem includes an optical interface providing a signal to a light source, a photo detector receiving reflected light by an optical link when output light from the light source based on the provided signal is reflected by the optical link, the photo detector measuring and determining characteristics of the optical link using the reflected light, and the optical modem determining a power level and a modulation method for each subcarrier based on the characteristics of the optical link.
Abstract translation: 公开了一种光调制解调器的调制方法和执行该方法的信号传输装置。 光调制解调器的调制方法包括向光源提供信号的光接口，当基于提供的信号的来自光源的输出光被光链路反射时，光接收器接收由光链路反射的光的光检测器，照片 检测器使用反射光测量和确定光链路的特性，并且光调制解调器基于光链路的特性确定每个子载波的功率电平和调制方法。
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公开(公告)号：US10248433B2
公开(公告)日：2019-04-02
申请号：US15478575
申请日：2017-04-04
Inventor： Sung Won Byon , Eun Jung Kwon , Jung Hak Kim , Hyun Ho Park , Yong Tae Lee , Eui Suk Jung , Hyun Woo Lee
IPC: G06F1/32 , G06F13/24 , H04L12/12 , H04L12/40 , H04L29/12 , G06F9/4401 , G06F1/3287
Abstract: A network management apparatus and method for remotely controlling a state of an IT device in order to use WOL to change a remote device from an inactive state to an active state over an IP network. The network management apparatus includes a detection pattern generator, a remote state controller, and a wake-up cause analyzer. By activating an inactivated PC connected over an IP network and positioned at a remote site using WOL to control a state of another IT device interoperating through the IP network as well as a state of the PC, it is possible to inactivate the device without unnecessarily having to leave the device on and then control the device as necessary, thereby reducing power consumption of the device and extending a lifetime of the device.
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公开(公告)号：US11869265B2
公开(公告)日：2024-01-09
申请号：US17191981
申请日：2021-03-04
Inventor： Sungwon Byon , Eun Jung Kwon , Hyunho Park , Won-Jae Shin , Dong Man Jang , Eui Suk Jung , Yong Tae Lee
Abstract: Provided are an object tracking system and an object tracking method. The object tracking system includes: a terminal identifier and reference time providing module configured to receive an identifier of a terminal and a reference time for tracking an object corresponding to the identifier; a cross-CCTV detection module configured to detect a cross-CCTV for the terminal by using a CCTV installation information and a location of the terminal before the reference time; a basic image detection module configured to detect an object repeatedly appearing in the cross-CCTV as a basic image; a current-CCTV detection module configured to detect a current-CCTV currently recording the terminal by detecting a location and a moving direction of the terminal after the reference time; an object detection module configured to detect an object appearing in the current-CCTV based on the location and the moving direction of the terminal after the reference time; and an object tracking module configured to track an object corresponding to the identifier by determining whether the detected object from the current-CCTV and the basic image.
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Patent Agency Ranking
公开(公告)号：US10659680B2
公开(公告)日：2020-05-19
申请号：US16125377
申请日：2018-09-07
Inventor： Sung Won Byon , Eun Jung Kwon , Hyun Ho Park , Yong Tae Lee , Dong Man Jang , Eui Suk Jung
Abstract: Disclosed is a method of processing an object in an image and a system for the same. According to an embodiment of the present disclosure, there is provided a method of processing an object in an image, the method including: detecting a first object from a first image obtained by a first network camera; detecting a second object from a second image obtained by a second network camera; checking similarity between the first and second objects in consideration of feature information of the first and second objects, installation location information of the first and second network cameras, and location information of a terminal device; and determining whether the first object is equal to the second object on the basis of the similarity between the first and second objects.
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公开(公告)号：US09955217B2
公开(公告)日：2018-04-24
申请号：US15164254
申请日：2016-05-25
Inventor： Eun Jung Kwon , Sung Won Byon , Jung Hak Kim , Young Soo Park , Hyun Ho Park , Yong Tae Lee , Eui Suk Jung , Won Ryu
IPC: H04N21/443 , H04N21/222 , H04N21/643 , H04N21/6543 , H04N21/24 , H04N5/45
CPC classification number: H04N21/4436 , H04N5/45 , H04N5/63 , H04N21/2221 , H04N21/24 , H04N21/64322 , H04N21/6543
Abstract: A method of acquiring an Internet protocol (IP) address to control a standby mode of a set-top box, and the set-top box and a power management server performing the method are disclosed. The method may include determining whether a state of the set-top box changes from a broadcasting state in which a broadcasting service is provided to a passive standby state in which a network connection between the set-top box and a headend providing the broadcasting service is blocked, receiving state information associated with an IP address allocated to the set-top box for the network connection in response to the state of the set-top box changing to the passive standby state, and transmitting, to the set-top box, a state change command to maintain the network connection for the IP address allocated to the set-top box based on the received state information.
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公开(公告)号：US09673797B2
公开(公告)日：2017-06-06
申请号：US14924955
申请日：2015-10-28
Inventor： Young Ho Kim , Eui Suk Jung
IPC: H03K5/153 , H03K5/1532 , H03G3/30 , G01R19/04 , H03F3/45
CPC classification number: H03K5/1532 , G01R19/04 , H03F3/45183 , H03F3/45475 , H03F3/45968 , H03F2200/435 , H03F2200/453 , H03F2203/45138 , H03F2203/45212 , H03G3/30 , H03G3/3084
Abstract: A peak detector using a charge pump is provided. The peak detector includes a differential amplifier configured to receive an input signal to be detected through an input node and amplify the received signal; a current control logic configured to create two or more current control signals by comparing a signal output from the differential amplifier with two or more reference voltages; a mirror current source portion comprising two or more mirror current sources configured to be driven respectively by the current control signals from the current control logic; a capacitor configured to be charged or discharged by currents output from the mirror current sources; and a reset circuit configured to reset a voltage of the capacitor.
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公开(公告)号：US11870933B2
公开(公告)日：2024-01-09
申请号：US17824214
申请日：2022-05-25
Inventor： Sung Won Byon , Eun Jung Kwon , Hyun Ho Park , Dong Man Jang , Eui Suk Jung
IPC: H04M3/51
CPC classification number: H04M3/5116 , H04M2201/40
Abstract: Provided is an emergency dispatch command information management method capable of providing relevant emergency dispatch command information. The method includes: a step of receiving report input data from a reporter terminal; a step of generating reception input data of a recipient on the basis of the report input data; a step of generating first emergency dispatch command information on the basis of the reception input data; a step of detecting at least one second emergency dispatch command information relevant to the generated first emergency dispatch command information; and a step of transmitting the first and second emergency dispatch command information to a command receiver terminal.
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公开(公告)号：US10231016B2
公开(公告)日：2019-03-12
申请号：US15509344
申请日：2015-07-16
Inventor： Young Il Kim , Won Ryu , Young Soo Park , Yong Tae Lee , Eui Suk Jung
IPC: H04N21/443 , H04N5/44 , H04N5/63 , H04N21/24 , H04N21/2543 , H04N21/258 , H04N21/40 , H04N21/472 , H02M1/16 , H02M3/28 , H04N7/173 , H04N21/4227
Abstract: A network cooperation-based low power type charged broadcasting set-top box and a controlling method therefor, the set-top box sub-dividing a standby mode of the set-top box into an active standby mode, in which only background functions are processed without processing a main function, and a passive standby mode, in which no functions are processed; extending the passive standby mode occupation time to more than that of the active standby mode; and including a way of transitioning between operating modes by exchanging information regarding the set-top box through an inter-cooperation between a charged broadcasting network and the set-top box, thereby reducing the power consumption of a processor (SoC) which processes multimedia contents and minimizing the power consumption while the set-top box is in standby mode.
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