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1.发明授权Method and apparatus for inserting broadcast program by detecting available channel over hybrid fiber coax network or optical cable network 有权通过混合光纤同轴网络或光缆网络检测可用信道来插入广播节目的方法和装置公开(公告)号：US09027071B2
公开(公告)日：2015-05-05
申请号：US13868674
申请日：2013-04-23
Inventor： Yang Su Kim , Han Seung Koo , Jae Ho Lee , Sang Jung Ra , Dong Joon Choi , Nam Ho Hur
IPC: H04N21/2385 , H04N21/2383 , H04N21/61 , H04H20/06 , H04H60/41
CPC classification number: H04N21/2385 , H04H20/06 , H04H60/41 , H04N21/2383 , H04N21/6118
Abstract: An apparatus for combining a broadcasting channel may include a channel detector to detect a vacant Radio Frequency (RF) broadcasting channel used by a photoelectric converter that converts a first broadcast program as an optical signal to a first RF signal, a broadcast receiving interface to receive at least one second broadcast program, a broadcast modulator to generate a second RF signal by modulating the second broadcast program using the vacant RF broadcasting channel, and a channel combiner to combine a broadcasting channel used for the first RF signal and the vacant RF broadcasting channel.
Abstract translation: 用于组合广播信道的装置可以包括：信道检测器，用于检测由光电转换器使用的空闲射频（RF）广播信道，其将作为光信号的第一广播节目转换为第一RF信号;广播接收接口，用于接收 至少一个第二广播节目，通过使用空闲RF广播频道调制第二广播节目来产生第二RF信号的广播调制器，以及组合用于第一RF信号的广播频道和空闲RF广播频道 。
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Patent Agency Ranking
2.发明授权Apparatus for providing information about available service using proxy server and method therefor 有权用于使用代理服务器提供关于可用服务的信息的装置及其方法公开(公告)号：US09313719B2
公开(公告)日：2016-04-12
申请号：US14603198
申请日：2015-01-22
Inventor： Cheol Ryu , Hyung Seok Lee , Jae Ho Lee , Seok Jin Yoon , Do Hyung Kim , Jin Suk Ma , Choong Bum Park
CPC classification number: H04W48/14 , H04L67/2838 , H04W4/06
Abstract: An apparatus for providing information about an available service using a proxy server and a method thereof. The apparatus includes an available service checker, a database, an available service searcher, and an available service broadcaster. The apparatus may provide information through the proxy server regarding available services of a device that is not currently connected to a basic service set (BSS), thereby preventing generation of excessive amount of traffic.
Abstract translation: 一种使用代理服务器提供关于可用服务的信息的装置及其方法。 该装置包括可用服务检查器，数据库，可用服务搜索器和可用服务广播器。 该装置可以通过代理服务器提供关于当前未连接到基本服务集（BSS）的设备的可用服务的信息，从而防止产生过量的业务。
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公开(公告)号：US12206177B2
公开(公告)日：2025-01-21
申请号：US17978255
申请日：2022-11-01
Inventor： Jung Hoon Oh , Jang Yeol Kim , Jae Ho Lee , Hyun Joon Lee , In Kui Cho
Abstract: An operation method of a first communication node may comprise: receiving one or more polarized radio signals transmitted from a second communication node included in the communication system through one or more receive polarized antennas included in the first communication node; performing a receive polarized antenna alignment state adjustment operation so that a detection result for a magnitude of an electric field excited by the one or more polarized radio signals is maximized; and receiving a first polarized signal transmitted from the second communication node through at least part of the one or more receive polarized antennas based on a result of the receive polarized antenna alignment state adjustment operation.
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4.发明授权Method and apparatus for compensating for variable symbol timing using cyclic prefix in non-synchronized OFDM system 有权用于在非同步OFDM系统中使用循环前缀补偿可变符号定时的方法和装置公开(公告)号：US09154293B2
公开(公告)日：2015-10-06
申请号：US14097440
申请日：2013-12-05
Inventor： Jae Ho Lee , Yang Su Kim , Sang Jung Ra , Han Seung Koo , Dong Joon Choi , Nam Ho Hur
CPC classification number: H04L7/0079 , H04L27/2656 , H04L27/2663 , H04L27/2678
Abstract: Disclosed are a method and apparatus for estimating symbol timing in a non-synchronized OFDM system. The present invention includes synchronizing a frame of a received signal, estimating the symbol timing of each symbol of the frame based on the synchronization, compensating for the symbol timing using a phase difference attributable to a Symbol Timing Offset (STO), variably changing within a Cyclic Prefix (CP) interval due to the frequency offset of a sampling clock and thermal noise, and performing channel equalization using a preamble based on output including corrected phase rotation.
Abstract translation: 公开了一种在非同步OFDM系统中估计符号定时的方法和装置。 本发明包括使接收信号的帧同步，基于同步来估计帧的每个符号的符号定时，使用归因于符号定时偏移（STO）的相位差来补偿符号定时，该相位差可在一个 由于采样时钟和热噪声的频率偏移导致的循环前缀（CP）间隔，并且使用基于包括校正相位旋转的输出的前导码来执行信道均衡。
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5.发明授权公开(公告)号：US10333643B2
公开(公告)日：2019-06-25
申请号：US14959189
申请日：2015-12-04
Inventor： Joon Young Jung , Jae Ho Lee , Dong Joon Choi , Nam Ho Hur
Abstract: An apparatus and a method for converting an upstream radio frequency (RF) signal to a digital signal and transmitting the digital signal via an Internet protocol (IP) packet based on an optical network in a cable broadcasting network is provided. The apparatus for transmitting an upstream RF signal includes a detector configured to detect an upstream RF signal, and a transmitter configured to digitize the detected upstream RF signal and transmit the digitized RF signal to a headend via an IP packet.
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公开(公告)号：US11804874B2
公开(公告)日：2023-10-31
申请号：US17734286
申请日：2022-05-02
Inventor： In Kui Cho , Jang Yeol Kim , Jung Hoon Oh , Jae Woo Lee , Jae Ho Lee , Hyun Joon Lee , Sang Won Kim , Seong Min Kim , Jung Ick Moon , Woo Jin Byun , Je Hoon Yun
IPC: H04B5/00
CPC classification number: H04B5/0031 , H04B5/0081 , H04B5/0087
Abstract: An antenna device for magnetic field communication may include: a first coil; a second coil; a third coil; a first capacitor connected to a 1-1 terminal of the first coil; a second capacitor connected to a 2-1 terminal of the second coil; a third capacitor connected to a 3-1 terminal of the third coil; and an input port including a first input terminal connected to a 1-2 terminal of the first coil, a 2-2 terminal of the second coil, and a 3-2 terminal of the third coil, and a second input terminal connected to the first capacitor, the second capacitor, and the third capacitor.
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