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公开(公告)号：US09413582B2
公开(公告)日：2016-08-09
申请号：US14643023
申请日：2015-03-10
Inventor： Hyoungsoo Lim , Hun Hee Lee , Joungil Yun , Kyu Tae Yang , Young Su Kim , Yun Jeong Song , Namho Hur
Abstract: A transmitting apparatus generates a modulation pattern code corresponding to an input security key and modulates and transmits the bit stream with a corresponding modulation method for a duration of a corresponding modulation method while changing a modulation method according to the generated modulation pattern code.
Abstract translation: 发送装置生成与输入的安全密钥相对应的调制图案代码，并且在根据所生成的调制图案代码改变调制方式的同时，以对应的调制方式的持续时间，用对应的调制方式对比特流进行调制和发送。
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公开(公告)号：US09906824B2
公开(公告)日：2018-02-27
申请号：US15066934
申请日：2016-03-10
Inventor： Woo-Suk Kim , Byungjun Bae , Hyun-Jeong Yim , Hyoungsoo Lim , Namho Hur
IPC: H04N21/242 , H04N21/438 , H04L1/00 , H04H20/42 , H04N21/61 , H04N21/845 , H04N21/2385 , H04N21/236
CPC classification number: H04N21/242 , H04H20/42 , H04L1/00 , H04L1/0083 , H04N21/23608 , H04N21/2385 , H04N21/4382 , H04N21/6112 , H04N21/8456
Abstract: Disclosed is a method and device for transmitting media data in a digital broadcasting system for allocating media data to a superframe, and transmitting a superframe in which a time length of media data corresponds to a time length of the superframe.
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公开(公告)号：US09749379B2
公开(公告)日：2017-08-29
申请号：US14526902
申请日：2014-10-29
Inventor： Joungil Yun , Byungjun Bae , Kyu Tae Yang , Yun Jeong Song , Hun Hee Lee , Hyoungsoo Lim , Namho Hur
IPC: H04L29/06 , H04N21/438 , H04N21/462 , H04N21/6371 , H04N21/6377
CPC classification number: H04L65/60 , H04L65/4076 , H04L65/80 , H04N21/4381 , H04N21/4384 , H04N21/4622 , H04N21/6371 , H04N21/6377
Abstract: A receiving terminal in a hybrid network receives a video stream through a broadcasting network. The receiving terminal receives a high speed video stream streamed at a high speed for a defined first period from a first time when switching from the broadcasting network to a communication network depending on a receiving state of the broadcasting network is determined, receives a live video stream streamed in a live form from any one time of the first period, and generates a continuous video stream using the video stream received through the broadcasting network, the high speed video stream, and the live video stream.
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公开(公告)号：US09077410B2
公开(公告)日：2015-07-07
申请号：US14302532
申请日：2014-06-12
Inventor： Yun Jeong Song , Hun Hee Lee , Young Su Kim , Joungil Yun , Byungjun Bae , HyoungSoo Lim , Namho Hur
CPC classification number: H04L27/2627 , H04L25/03834 , H04L27/264
Abstract: An apparatus of transmitting data in a multi-carrier system includes: a plurality of pulse-shaping filters for performing pulse shaping of incoming data symbols during a set pulse-shaping period; and a plurality of frequency converters convert signals that are pulse-shaped by the plurality of pulse-shaping filters into signals with frequency bands for a plurality of subcarriers.
Abstract translation: 在多载波系统中发送数据的装置包括：多个脉冲整形滤波器，用于在设置的脉冲整形周期期间对输入的数据符号进行脉冲整形; 并且多个频率转换器将由多个脉冲整形滤波器脉冲形成的信号转换为具有用于多个子载波的频带的信号。
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公开(公告)号：US20150120957A1
公开(公告)日：2015-04-30
申请号：US14526902
申请日：2014-10-29
Inventor： Joungil Yun , Byungjun Bae , Kyu Tae Yang , Yun Jeong Song , Hun Hee Lee , Hyoungsoo Lim , Namho Hur
IPC: H04L29/06
CPC classification number: H04L65/60 , H04L65/4076 , H04L65/80 , H04N21/4381 , H04N21/4384 , H04N21/4622 , H04N21/6371 , H04N21/6377
Abstract: A receiving terminal in a hybrid network receives a video stream through a broadcasting network. The receiving terminal receives a high speed video stream streamed at a high speed for a defined first period from a first time when switching from the broadcasting network to a communication network depending on a receiving state of the broadcasting network is determined, receives a live video stream streamed in a live form from any one time of the first period, and generates a continuous video stream using the video stream received through the broadcasting network, the high speed video stream, and the live video stream.
Abstract translation: 混合网络中的接收终端通过广播网络接收视频流。 接收终端从第一次接收从广播网络切换到通信网络的第一时刻以高速流式传输的高速视频流，取决于广播网络的接收状态，接收直播视频流 从第一时段的任何一个时间流式传输，并使用通过广播网络，高速视频流和直播视频流接收的视频流生成连续的视频流。
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Patent Agency Ranking
公开(公告)号：US10110275B2
公开(公告)日：2018-10-23
申请号：US15656906
申请日：2017-07-21
Inventor： Jae Hwui Bae , Sang-Jung Ra , Jin Hyuk Song , Joon Young Jung , Dong Joon Choi , Namho Hur
Abstract: A method of estimating an integer frequency offset and compensating for the integer frequency offset by an estimated error is provided. A frequency offset estimation method may include receiving a reception signal including PLC data and a physical layer link channel (PLC) preamble, detecting first position information on a position of a subcarrier of the PLC preamble in a frequency axis from the reception signal through a cross-correlation between the PLC preamble and the reception signal, detecting second position information on the position of the subcarrier of the PLC preamble defined in a transmission end by restoring the PLC data, and calculating a frequency offset by comparing the first position information with the second position information.
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公开(公告)号：US10045162B2
公开(公告)日：2018-08-07
申请号：US14996731
申请日：2016-01-15
Inventor： Joungil Yun , Woo-Suk Kim , Byungjun Bae , Hyun-Jeong Yim , Hyoungsoo Lim , Namho Hur
Abstract: A device for transmitting a media service in a hybrid network, which is a combination of a broadcasting network and a communication network, includes a streaming server, a streaming client, a multiplexer, and a transmitter. The streaming server generates media segments including media data and a metadata file including temporal order information and downloading and reproduction information of the media segments corresponding to a plurality of profiles. The streaming client selects a profile according to a transmission bit ratio appropriate for a broadcasting resource allocation state, requests a media segment with quality that is suitable for the broadcasting resource allocation state from the streaming server, and downloads the same. The multiplexer multiplexes part of information of the metadata file on the profile selected from among the media segment and the metadata file of the plurality of profiles to generate a baseband frame. The transmitter converts the baseband frame into a broadcasting signal and transmits the same through a broadcasting network.
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公开(公告)号：US09106496B2
公开(公告)日：2015-08-11
申请号：US14354333
申请日：2012-10-24
Inventor： Jong Soo Lim , Sun Hyoung Kwon , Heung Mook Kim , Namho Hur
CPC classification number: H04L27/2649 , H03C3/40 , H04L27/0008 , H04L27/2614 , H04L27/2634
Abstract: Modulation is performed on a first input signal and a second input signal to be transmitted based on symbol mapping. Phase values of the first and second modulated input signals are selectively adjusted. Angle modulation is performed on the first input signal and the second input signal having selectively adjusted phase values. The angle-modulated first and second input signals are transmitted.
Abstract translation: 基于符号映射对第一输入信号和第二输入信号执行调制。 选择性地调整第一和第二调制输入信号的相位值。 对第一输入信号和第二输入信号进行角度调制，其具有选择性地调整的相位值。 角度调制的第一和第二输入信号被发送。
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公开(公告)号：US20140294121A1
公开(公告)日：2014-10-02
申请号：US14354333
申请日：2012-10-24
Inventor： Jong Soo Lim , Sun Hyoung Kwon , Heung Mook Kim , Namho Hur
CPC classification number: H04L27/2649 , H03C3/40 , H04L27/0008 , H04L27/2614 , H04L27/2634
Abstract: Modulation is performed on a first input signal and a second input signal to be transmitted based on symbol mapping. Phase values of the first and second modulated input signals are selectively adjusted. Angle modulation is performed on the first input signal and the second input signal having selectively adjusted phase values. The angle-modulated first and second input signals are transmitted.
Abstract translation: 基于符号映射对第一输入信号和第二输入信号执行调制。 选择性地调整第一和第二调制输入信号的相位值。 对第一输入信号和第二输入信号进行角度调制，其具有选择性地调整的相位值。 角度调制的第一和第二输入信号被发送。
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公开(公告)号：US11882481B2
公开(公告)日：2024-01-23
申请号：US17718938
申请日：2022-04-12
Inventor： Soon Choul Kim , Sung Ik Park , Jae-young Lee , Hyun-Jeong Yim , Namho Hur , Dong Joon Choi
IPC: H04W28/08 , H04N21/438 , H04N21/61 , H04W84/04
CPC classification number: H04W28/0967 , H04N21/438 , H04N21/6131 , H04W84/042
Abstract: Disclosed are an apparatus and method for providing an offloading service. A method of providing an offloading service according to an example embodiment includes streaming, to a user terminal including a cellular network receiver and a broadcast network receiver, media content data through a cellular network, transmitting, to the user terminal, an offloading service providing signal for activating the broadcast network receiver of the user terminal through the cellular network, transmitting, to the user terminal, a broadcast signal including connection information of a broadcast network to which the user terminal is to be connected so as to receive the media content data, through the cellular network, and broadcasting the media content data through the broadcast network.
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