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61. 发明申请

US20050105169A1 Wideband light source 失效
标题翻译：宽带光源
公开(公告)号：US20050105169A1
公开(公告)日：2005-05-19
申请号：US10854347
申请日：2004-05-26
申请人： Seong-Taek Hwang , Chang-Sup Shim , Yun-Je Oh
发明人： Seong-Taek Hwang , Chang-Sup Shim , Yun-Je Oh
IPC分类号： H01S3/10 , H01S3/06 , H01S3/067 , H01S3/23 , H01S3/00
CPC分类号： H01S3/067
摘要： A wideband light source is disclosed. The wideband light source includes a first optical amplifier for generating and amplifying a C-band spontaneous emission light, a second optical amplifier for generating C-band and L-band spontaneous emission lights which is pumped by the C-band spontaneous emission light to amplify an L-band spontaneous emission light, and a reflector positioned between the first and second optical amplifiers to reflect the C-band spontaneous emission light provided from the first optical amplifier back to the first optical amplifier and the C-band and L-band spontaneous emission lights provided from the second optical amplifier back to the second optical amplifier.
摘要翻译：公开了一种宽带光源。宽带光源包括用于产生和放大C波段自发发射光的第一光放大器，用于产生C波段和L波段自发发射光的第二光放大器，其由C波段自发发射光泵浦以放大 L波段自发发射光和位于第一和第二光放大器之间的反射器，以将从第一光放大器提供的C波段自发发射光反射回第一光放大器，C波段和L波段自发从第二光放大器提供的发射光返回到第二光放大器。

62. 发明申请

US20050069252A1 Dual-port broadband light source with independently controllable output powers 失效
标题翻译：双端口宽带光源，具有独立可控的输出功率
公开(公告)号：US20050069252A1
公开(公告)日：2005-03-31
申请号：US10825813
申请日：2004-04-16
申请人： Seong-Taek Hwang , Yun-Je Oh , Kwan-Soo Lee
发明人： Seong-Taek Hwang , Yun-Je Oh , Kwan-Soo Lee
IPC分类号： H01S3/06 , G02B6/26 , G02B6/42 , H01S3/00 , H01S3/067 , H01S3/094 , H01S3/10 , H01S3/16 , H01S5/06
CPC分类号： H01S3/06754 , H01S3/0064 , H01S3/06758 , H01S3/094011 , H01S3/094015 , H01S3/094023 , H01S3/1608
摘要： A dual-port broadband light source with independently controllable output powers includes a broadband light source having a first gain medium pumped by an input pump light in order to output a first amplified spontaneous emission through both ends thereof. A second gain medium pumped by another input pump light in order to output a second amplified spontaneous emission through both ends thereof. A reflector disposed between the opposite ends of the first and second gain mediums to reflect the input first and second amplified spontaneous emissions. The first and second amplified spontaneous emissions output from the first and second gain mediums are then output to the outside through first and second output terminals.
摘要翻译：具有独立可控的输出功率的双端口宽带光源包括具有由输入泵浦光泵浦的第一增益介质的宽带光源，以便通过其两端输出第一放大的自发发射。第二增益介质由另一输入泵浦泵浦，以便通过其两端输出第二放大的自发发射。设置在第一和第二增益介质的相对端之间的反射器，以反映输入的第一和第二放大的自发辐射。从第一和第二增益介质输出的第一和第二放大的自发辐射然后通过第一和第二输出端输出到外部。

63. 发明申请

US20050047784A1 Apparatus and method for tracking optical wavelength in WDM passive optical network using loop-back light source 有权
标题翻译：使用环回光源在WDM无源光网络中跟踪光波长的装置和方法
公开(公告)号：US20050047784A1
公开(公告)日：2005-03-03
申请号：US10780132
申请日：2004-02-17
申请人： Dae-Kwang Jung , Yun-Je Oh , Seong-Taek Hwang
发明人： Dae-Kwang Jung , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H04J14/00 , H04B10/07 , H04B10/27 , H04B10/272 , H04B10/40 , H04B10/50 , H04B10/572 , H04B10/60 , H04J14/02
CPC分类号： H04J14/0282 , H04B10/2587 , H04B10/506 , H04B10/572 , H04J14/02 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J2014/0253
摘要： An optical wavelength tracking apparatus and method in a wavelength division multiplexed (WDM) passive optical network (PON) in which a central office (CO) having a multi-frequency light source is connected to a plurality of optical network units (ONUs) having loop-back light sources through a WDM MUX/DEMUX in a remote node (RN). The power levels of downstream and upstream WDM optical signals are measured. The WDM wavelengths of the multi-frequency light source and the WDM MUX/DEMUX are controlled to be nearly identical in order to minimize the difference between the power levels of the downstream and upstream WDM optical signals.
摘要翻译：一种波分复用（WDM）无源光网络（PON）中的光波长跟踪装置和方法，其中具有多频光源的中心局（CO）连接到具有环路的多个光网络单元（ONU）通过远程节点（RN）中的WDM MUX / DEMUX来返回光源。测量下行和上行WDM光信号的功率电平。控制多频光源和WDM MUX / DEMUX的WDM波长几乎相同，以便最小化下行和上行WDM光信号的功率电平之间的差异。

64. 发明申请

US20050046926A1 Broadband light source with dual-port structure 审中-公开
标题翻译：宽带光源，双端口结构
公开(公告)号：US20050046926A1
公开(公告)日：2005-03-03
申请号：US10780217
申请日：2004-02-17
申请人： Seong-Taek Hwang , Sang-Ho Kim , Chang-Sup Shim , Yun-Je Oh
发明人： Seong-Taek Hwang , Sang-Ho Kim , Chang-Sup Shim , Yun-Je Oh
IPC分类号： H01S3/06 , H01S3/067 , H01S3/094 , H01S3/10 , H01S3/00
CPC分类号： H01S3/06795 , H01S3/094003
摘要： A broadband light source with a dual port structure includes a gain medium pumped by inputted pump light for outputting ASE light through both terminals thereof, and a pumping section for pumping the gain medium. The broadband light source outputs ASE light, which is outputted from both terminals of the gain medium, to an exterior through first and second output terminals.
摘要翻译：具有双端口结构的宽带光源包括通过输入泵浦光泵浦的增益介质，用于通过其两个端子输出ASE光，以及用于泵浦增益介质的泵送部分。宽带光源通过第一和第二输出端子将从增益介质的两端输出的ASE光输出到外部。

65. 发明申请

US20050008362A1 Self-healing wavelength division multiplexing-passive optical network system 失效
标题翻译：自愈波分复用 - 无源光网络系统
公开(公告)号：US20050008362A1
公开(公告)日：2005-01-13
申请号：US10721712
申请日：2003-11-25
申请人： Dae-Kwang Jung , Yun-Je Oh , Seong-Taek Hwang
发明人： Dae-Kwang Jung , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H04B10/03 , H04B10/032 , H04B10/27 , H04B10/272 , H04J3/16 , H04J14/00 , H04J14/02 , H04Q11/00 , G02F1/00
CPC分类号： H04J14/0297 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J14/0282 , H04J14/029 , H04Q11/0067 , H04Q2011/0016 , H04Q2011/0081
摘要： A self-healing WDM (Wavelength Division Multiplexing)—PON (Passive Optical Network) system is disclosed and includes a CO (Central Office), a RN (Remote Node) and a plurality of subscriber units. The system includes a trunk working fiber and a trunk protection fiber for connecting the CO with the RN, a distribution working fiber, and a distribution protection fiber for connecting the RN with the subscriber units. The CO is connected to the trunk working fiber and the trunk protection fiber, and contains an optical switching unit switched when an error or communication failure occurs, an upstream working optical receiver and an upstream protection optical receiver for receiving upstream data, and a downstream working light source and a downstream protection light source for transmitting downstream data. Each subscriber unit is connected to the distribution working fiber and the distribution protection fiber, and contains an optical switching unit switched when an error or communication failure occurs, a downstream working optical receiver and a downstream protection optical receiver for receiving downstream data, and an upstream working light source and an upstream protection light source for transmitting downstream data.
摘要翻译：公开了一种自愈WDM（波分多路复用）-PON（被动光网络）系统，包括CO（中心局），RN（远端节点）和多个用户单元。该系统包括中继线工作光纤和中继保护光纤，用于将CO与RN连接，分配工作光纤和用于将RN与用户单元连接的分布保护光纤。 CO连接到主干工作光纤和中继保护光纤，并且在发生错误或通信故障时包含切换的光交换单元，用于接收上游数据的上行工作光接收机和上游保护光接收机，以及下行工作光源和用于传输下游数据的下游保护光源。每个用户单元连接到分发工作光纤和分布保护光纤，并且包含当发生错误或通信故障时切换的光交换单元，用于接收下行数据的下行工作光接收机和下游保护光接收机，以及上游工作光源和上游保护光源，用于传输下游数据。

66. 发明授权

US08594424B2 Apparatus and method for recognizing characters using a camera 有权
标题翻译：使用相机识别字符的装置和方法
公开(公告)号：US08594424B2
公开(公告)日：2013-11-26
申请号：US12632118
申请日：2009-12-07
申请人： Seong-Taek Hwang , Sang-Wook Oh , Hyun-Soo Kim , Sang-Ho Kim , Hee-Min Kwon , Yun-Je Oh , Byung-Jik Kim
发明人： Seong-Taek Hwang , Sang-Wook Oh , Hyun-Soo Kim , Sang-Ho Kim , Hee-Min Kwon , Yun-Je Oh , Byung-Jik Kim
IPC分类号： G06K9/34 , G06K9/00
CPC分类号： H04N5/225 , G06K9/228 , G06K9/723 , G06K2209/01
摘要： An apparatus and method for recognizing characters of an image captured using a camera in a mobile terminal are provided, wherein an image of a signboard is captured, a text area is extracted from the captured image of the signboard, characters are recognized from the extracted text area, similar characters up to a predetermined priority level are generated for each recognized character of the extracted text area, location information of an area within a predetermined range from a current position of a user is acquired, store names are extracted from the location information, text is generated by combining the similar characters according to weights, the text are compared with the extracted store names, and a comparison result is output.
摘要翻译：提供一种用于识别在移动终端中使用相机拍摄的图像的字符的装置和方法，其中捕获招牌的图像，从所述招牌的所捕获的图像中提取文本区域，从所提取的文本中识别字符为所提取的文本区域的每个识别字符生成直到预定优先级的类似字符，获取来自用户的当前位置的预定范围内的区域的位置信息，从位置信息中提取存储名称，通过根据权重组合相似的字符来生成文本，将文本与提取的商店名称进行比较，并输出比较结果。

67. 发明授权

US08116405B2 Method and apparatus for time synchronization using GPS information in communication system 有权
标题翻译：在通信系统中使用GPS信息进行时间同步的方法和装置
公开(公告)号：US08116405B2
公开(公告)日：2012-02-14
申请号：US12104662
申请日：2008-04-17
申请人： Jae-Hun Cho , Byung-Duck Cho , Yun-Je Oh , Seong-Taek Hwang
发明人： Jae-Hun Cho , Byung-Duck Cho , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H03K9/00 , H04L27/00
CPC分类号： H04J3/0697 , G04R20/06 , H04J3/0644 , H04J3/0664 , H04J3/0667
摘要： A method and apparatus for time synchronization (TS) method using GPS information in a communication system synchronizing the time of slave nodes, which do not have a GPS receiver, by using GPS information of a node having a GPS receiver. The method includes the steps of extracting 1PPS, TOD, 1PPS_en, and clocks using GPS signals by a grand master node having a GPS receiver, stabilizing the signals, generating a sync message for TS, and transmitting the sync message to a slave node; receiving the sync message by the slave node and conducting a TS operation using OFCC synchronization technology extracting 1PPS, TOD, and 1PPS_en signals using the modified TOD information by the block and delivering to a stabilization block of the slave node for stabilization; and redelivering to the TS block to update TOD information and generate a sync message for TS of a second slave node.
摘要翻译：通过使用具有GPS接收机的节点的GPS信息，在通信系统中使用GPS信息来同步没有GPS接收机的从节点的时间的时间同步（TS）方法和方法。该方法包括以下步骤：通过具有GPS接收机的大主节点提取1PPS，TOD，1PPS_en和使用GPS信号的时钟，稳定信号，产生用于TS的同步消息，并将同步消息发送到从节点; 由所述从节点接收同步消息，并且使用OFCC同步技术进行TS操作，所述同步技术使用所述块的修改的TOD信息提取1PPS，TOD和1PPS_en信号，并将其传送到所述从节点的稳定块以进行稳定; 并且重新发送到TS块以更新TOD信息并且生成用于第二从节点的TS的同步消息。

68. 发明授权

US08009742B2 Method and system for retransmitting internet protocol packet for terrestrial digital multimedia broadcasting service 失效
标题翻译：用于地面数字多媒体广播业务重传互联网协议报文的方法和系统
公开(公告)号：US08009742B2
公开(公告)日：2011-08-30
申请号：US11900873
申请日：2007-09-12
申请人： Sung-Kee Kim , Do-In Choi , Yong-Gyoo Kim , Yun-Je Oh , Seong-Taek Hwang
发明人： Sung-Kee Kim , Do-In Choi , Yong-Gyoo Kim , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H04N11/02 , H04N7/20 , H04N7/173 , H04N7/16 , H04J3/16
CPC分类号： H04L65/607 , H04L65/608 , H04N21/234318 , H04N21/4307 , H04N21/64707
摘要： A system and method for retransmitting an Internet protocol packet for terrestrial digital multimedia broadcasting (DMB) service are provided, in which a PES packetizer and an MPEG-2 TS multiplexer are removed; video, audio, and data signals are individually carried by RTP packets; and a receiver extracts object clock reference (OCR) included in a MPEG-4 SL, and synchronizes a system clock and controls buffers by means of the OCR.
摘要翻译：提供了一种用于重新发送用于地面数字多媒体广播（DMB）业务的因特网协议分组的系统和方法，其中PES分组器和MPEG-2TS多路复用器被去除; 视频，音频和数据信号由RTP包分别承载; 并且接收器提取包含在MPEG-4SL中的对象时钟参考（OCR），并且通过OCR同步系统时钟并控制缓冲器。

69. 发明授权

US07340170B2 Wavelength-division multiplexed self-healing passive optical network 有权
标题翻译：波分复用自愈无源光网络
公开(公告)号：US07340170B2
公开(公告)日：2008-03-04
申请号：US10939790
申请日：2004-09-13
申请人： Sung-Bum Park , Yun-Je Oh , Seong-Taek Hwang
发明人： Sung-Bum Park , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H04J14/00 , H04B10/08
CPC分类号： H04J14/0226 , H04B10/032 , H04J14/0246 , H04J14/025 , H04J14/0282 , H04J14/0291 , H04J14/0294
摘要： A wavelength-division multiplexed self-healing passive optical network is capable of detecting cut-off and deterioration of feeder fiber and distribution fiber and restoring a network with a star structure. The network includes a central office, a remote node, and a plurality of subscriber units. Working and protection feeder fibers connect the central office to the remote node. A reflection unit at an end of the remote node connects to the central office for reflecting a monitoring optical signal transmitted from the central office. An output monitor stage at an end of the central office connects to the remote node for detecting the reflected monitoring optical signal and generating a control signal based on the presence of abnormality of the working and protection feeder fibers.
摘要翻译：波分复用自愈无源光网络能够检测馈线光纤和配线光纤的切断和劣化，并恢复具有星型结构的网络。网络包括中心局，远程节点和多个用户单元。工作和保护馈线光纤将中心局连接到远程节点。远程节点末端的反射单元连接到中心局，用于反映从中心局发送的监控光信号。中心局端部的输出监控级与远程节点相连，用于检测反射的监控光信号，并根据工作和保护馈线光纤的异常情况生成控制信号。

70. 发明授权

US07269352B2 Wavelength division multiplexing light source apparatus using semiconductor optical amplifier 有权
标题翻译：使用半导体光放大器的波分复用光源装置
公开(公告)号：US07269352B2
公开(公告)日：2007-09-11
申请号：US10688568
申请日：2003-10-17
申请人： Dae-Kwang Jung , Yun-Je Oh , Seong-Taek Hwang
发明人： Dae-Kwang Jung , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H04J14/02
CPC分类号： H04J14/02
摘要： A WDM (Wavelength Division Multiplexing) light source apparatus using a SOA (Semiconductor Optical Amplifier) is disclosed. The WDM light source apparatus includes N SOAs, a 1×N multiplexer/demultiplexer, and a reflective mirror. The N SOAs have one end coated with a substance of a first reflection factor and the other end coated with a substance of a second reflection factor, directly modulate their input signals into optical signals according to a high-speed data signal to be transmitted, and amplify the modulated signal. The 1×N multiplexer/demultiplexer has one end composed of N terminals and the other end composed of one terminal. The N terminals are coupled with the N SOAs. The reflective mirror having a high reflection factor is connected to one terminal of the 1×N multiplexer/demultiplexer to reflect a signal received from the 1×N multiplexer/demultiplexer.
摘要翻译：公开了使用SOA（半导体光放大器）的WDM（波分复用）光源装置。 WDM光源装置包括N个SOA，1×N个多路复用器/解复用器和反射镜。 N个SOAs的一端涂有第一反射因子的物质，另一端涂覆有第二反射因子的物质，根据要传输的高速数据信号将其输入信号直接调制成光信号;以及放大调制信号。 1xN多路复用器/解复用器的一端由N个终端组成，另一端由一个终端组成。 N个终端与N个SOA相连。具有高反射因数的反射镜连接到1xN多路复用器/解复用器的一个端子，以反映从1xN多路复用器/解复用器接收的信号。

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