公开(公告)号：US08418041B2

公开(公告)日：2013-04-09

申请号：US12629343

申请日：2009-12-02

Applicant: In Ki Lee ,  Dae Ig Chang ,  Ho Jin Lee

Inventor： In Ki Lee ,  Dae Ig Chang ,  Ho Jin Lee

IPC: H03M13/00

CPC classification number: H03M13/15 ,  H03M13/1515 ,  H03M13/154 ,  H03M13/1545 ,  H03M13/1575

Abstract: A decoding method of an MPE-FEC (MultiProtocol Encapsulation-Forward Error Correction) RS (Reed-Solomon) decoder, includes: substituting a value corresponding to an erasure error position with 0 in a reception signal; calculating a syndrome by using the reception signal; calculating an erasure position polynomial by using erasure information; calculating a modified syndrome by using the syndrome and the erasure position polynomial; calculating an erasure error size polynomial by using the modified syndrome; calculating an error position by using the erasure position polynomial; calculating an error size by using a modified Forney's algorithm; and correcting an error through the error position and the error size.

Abstract translation: MPE-FEC（多协议封装前向纠错）RS（Reed-Solomon）解码器的解码方法包括：在接收信号中用0代替与擦除错误位置相对应的值; 通过使用接收信号来计算综合征; 通过使用擦除信息来计算擦除位置多项式; 通过使用综合征和擦除位置多项式计算修正综合征; 通过使用修正的综合征计算擦除误差大小多项式; 通过使用擦除位置多项式来计算误差位置; 通过使用修改的Forney算法计算错误大小; 并通过错误位置和错误大小纠正错误。

公开(公告)号：US08392783B2

公开(公告)日：2013-03-05

申请号：US12746306

申请日：2008-11-07

Applicant: Yeon Su Kang ,  Kun Seok Kang ,  Do-Seob Ahn ,  Ho Jin Lee

Inventor： Yeon Su Kang ,  Kun Seok Kang ,  Do-Seob Ahn ,  Ho Jin Lee

IPC: G08C25/02

CPC classification number: H04B7/18539 ,  H04B7/2606 ,  H04W72/085 ,  H04W84/047 ,  H04W88/04

Abstract: The present invention relates to a system and method of reusing radio resources capable of improving radio resource efficiency. According to an embodiment of the present invention, in a communication system including a repeater that retransmits signals transmitted from a satellite to user terminals, it is possible to reuse some of the radio resources used in a wide area coverage, such as the satellite, in a repeater coverage. Therefore, it is possible to ensure radio resources such that repeater data can be transmitted to user terminals without additional radio resources.

Abstract translation: 本发明涉及一种能够改善无线电资源效率的无线电资源的重用系统和方法。 根据本发明的实施例，在包括重传从卫星发送到用户终端的信号的中继器的通信系统中，可以将诸如卫星的广域覆盖中使用的一些无线电资源重用在 中继器覆盖。 因此，可以确保无线资源，使得中继器数据能够在没有附加的无线电资源的情况下被发送到用户终端。

公开(公告)号：US20110151777A1

公开(公告)日：2011-06-23

申请号：US12973517

申请日：2010-12-20

Applicant: Pan Soo KIM ,  Jae Hee Han ,  Dae Ig Chang ,  Ho Jin Lee

Inventor： Pan Soo KIM ,  Jae Hee Han ,  Dae Ig Chang ,  Ho Jin Lee

IPC: H04B7/185 ,  H04W52/04

CPC classification number: H04B7/18528

Abstract: Provided are a satellite VSAT apparatus and a control method thereof. The satellite VSAT apparatus according to an exemplary embodiment of the present invention can switch a modulation type of a signal to be transmitted from an indoor unit (IDU) to the outdoor unit to a linear or non-linear type in a case in which outputting of a transmitted signal is not controlled to an outdoor unit due to limitations, that is, there is no function such as an automatic signal level control in a block up-converter (BUC), a case in which transmission output limitation is large due to a lot of interference requirements for an adjacent channel, a case in which the number of adjacent channels (carriers) is large, or a case in which adjacent channel interference is large due to a frequency in a satellite multi-beam environment and polarization reuse, in a satellite VSAT apparatus system which aims at a low-priced user terminal.

Abstract translation: 提供了一种卫星VSAT装置及其控制方法。 在根据本发明的示例性实施例的卫星VSAT装置可以将输出从室内单元（IDU）到室外单元的信号的调制类型切换到线性或非线性类型， 发送信号由于限制而不被控制到室外机，也就是说，在块升压转换器（BUC）中不存在诸如自动信号电平控制的功能，由于发送信号的发送输出限制大 相邻信道的大量干扰要求，相邻信道（载波）数量大的情况，或由于卫星多波束环境中的频率和极化重用而导致相邻信道干扰较大的情况，在 卫星VSAT装置系统，其目的在于低价格的用户终端。

公开(公告)号：US20110026819A1

公开(公告)日：2011-02-03

申请号：US12656063

申请日：2010-01-14

Applicant: Sang Jo Lee ,  Shi Hwa Lee ,  Ho Jin Lee

Inventor： Sang Jo Lee ,  Shi Hwa Lee ,  Ho Jin Lee

IPC: G06K9/36

CPC classification number: H04N19/186 ,  H04N19/12 ,  H04N19/147 ,  H04N19/15 ,  H04N19/176 ,  H04N19/46

Abstract: An image data encoding/decoding apparatus and method using sampling is provided. The image data encoding apparatus may compress image data, pre-processed for each block, after sampling or without sampling, and select a more efficient compression mode from results of the compressing. The image data decoding apparatus may determine a decompression mode corresponding to the selected compression mode, and up-sample the image data after decompressing the image data based on a decompression mode, or decompress the image data without sampling, to provide high definition regardless of a type of image data.

Abstract translation: 提供了使用采样的图像数据编码/解码装置和方法。 图像数据编码装置可以在采样或不采样之后对每个块进行预处理的图像数据，并从压缩结果中选择更有效的压缩模式。 图像数据解码装置可以确定与选择的压缩模式相对应的解压缩模式，并且在解压缩图像数据之后，基于解压缩模式对图像数据进行上采样，或者在不采样的情况下解压缩图像数据，以提供高清晰度，而不管 图像数据类型。

公开(公告)号：US20110006950A1

公开(公告)日：2011-01-13

申请号：US12920047

申请日：2008-11-26

Applicant: Ikmo Park ,  Byoungchul Kim ,  Sung Min Han ,  Joon Gyu Ryu ,  Dae Ig Chang ,  Ho Jin Lee

Inventor： Ikmo Park ,  Byoungchul Kim ,  Sung Min Han ,  Joon Gyu Ryu ,  Dae Ig Chang ,  Ho Jin Lee

IPC: H01Q9/04 ,  H01Q1/38

CPC classification number: H01Q9/0442 ,  H01Q5/357 ,  H01Q9/0407

Abstract: Disclosed relates to a microstrip antenna, particularly, relates to a dual band microstrip antenna including two slots. The microstrip antenna includes a conductor plate having a first hole and a substrate having a microstrip patch where slots of two different sizes are positioned, the substrate being located on a top of the conductor plate.

Abstract translation: 公开涉及一种微带天线，特别涉及包括两个时隙的双频带微带天线。 微带天线包括具有第一孔的导体板和具有微带贴片的衬底，其中两个不同尺寸的槽被定位，衬底位于导体板的顶部。

公开(公告)号：US20100304668A1

公开(公告)日：2010-12-02

申请号：US12744840

申请日：2008-08-04

Applicant: Hee Wook Kim ,  Kun Seok Kang ,  Do-Seob Ahn ,  Ho Jin Lee

Inventor： Hee Wook Kim ,  Kun Seok Kang ,  Do-Seob Ahn ,  Ho Jin Lee

IPC: H04B7/185

CPC classification number: H04L5/14 ,  H04H20/08 ,  H04H20/72 ,  H04H20/74 ,  H04W72/04

Abstract: The present invention relates to a communication method in a mobile communication system. An exemplary embodiment of the present invention provides a mobile satellite communication system having a complementary terrestrial component among various mobile communication systems. The mobile satellite communication system can simultaneously provide a communication service and a broadcasting service to a terminal according to integration between communication and broadcasting. Different signal transmission methods are used between the complementary terrestrial component and a satellite. Specifically, a time division duplex method and a frequency division duplex method are used together and resources are allocated. As a result, system throughput can be increased, and local broadcasting contents can be effectively transmitted to the terminal.

Abstract translation: 本发明涉及移动通信系统中的通信方法。 本发明的示例性实施例提供了一种在各种移动通信系统中具有互补地面分量的移动卫星通信系统。 根据通信和广播之间的整合，移动卫星通信系统可以同时向终端提供通信服务和广播业务。 互补地面部件与卫星之间采用不同的信号传输方式。 具体地说，分时双工方式和频分双工方式一起使用，分配资源。 结果，可以提高系统吞吐量，并且本地广播内容可以有效地传送到终端。

公开(公告)号：US20100138878A1

公开(公告)日：2010-06-03

申请号：US12629522

申请日：2009-12-02

Applicant: Pan Soo Kim ,  Joon Gyu Ryu ,  Dae Ig Chang ,  Ho Jin Lee ,  Myung Hoon Sunwoo ,  Jin Kyu Choi

Inventor： Pan Soo Kim ,  Joon Gyu Ryu ,  Dae Ig Chang ,  Ho Jin Lee ,  Myung Hoon Sunwoo ,  Jin Kyu Choi

IPC: H04N7/20 ,  H04B1/707

CPC classification number: H04N7/20

Abstract: A receiver circuit of a satellite digital video broadcast system includes: a multiplication unit outputting a synchronized reception symbol by multiplying a reception symbol by frequency error information as a feedback; a common autocorrelation unit acquiring autocorrelation values for each symbol by multiplying the synchronized reception symbol by an autocorrelation coefficient; a frame synchronization unit detecting a SOF (Start Of Frame), which is a synchronization word indicating start of a frame, from the autocorrelation values for each symbol; a frequency synchronization unit estimating the frequency error information based on the autocorrelation values for each reception symbol and the SOF; and an SNR estimation unit estimating an SNR (Signal to Noise Ratio) based on the autocorrelation values for each symbol and the SOF.

Abstract translation: 卫星数字视频广播系统的接收机电路包括：乘法单元，通过将接收符号乘以频率误差信息作为反馈来输出同步的接收符号; 公共自相关单元通过将同步接收符号乘以自相关系数来获取每个符号的自相关值; 从每个符号的自相关值中检测作为指示帧起始的同步字的SOF（帧起点）的帧同步单元; 频率同步单元，基于每个接收符号和所述SOF的自相关值估计所述频率误差信息; 以及SNR估计单元，基于每个符号和SOF的自相关值来估计SNR（信噪比）。

公开(公告)号：US20100128656A1

公开(公告)日：2010-05-27

申请号：US12537731

申请日：2009-08-07

Applicant: Hee Wook KIM ,  Kunseok Kang ,  Do-Seob Ahn ,  Ho Jin Lee

Inventor： Hee Wook KIM ,  Kunseok Kang ,  Do-Seob Ahn ,  Ho Jin Lee

IPC: H04B7/185

CPC classification number: H04B7/2041 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0069 ,  H04W72/0453 ,  H04W72/082

Abstract: Provided is a communication method of a mobile terminal in an orthogonal frequency division multiplexing (OFDM) based multi-beam satellite system reusing the same frequency band for all the beams, the method including: receiving location information of the mobile terminal from a satellite to determine a location of the mobile terminal within multiple beams; determining a subcarrier group for a communication with the satellite according to the location of the mobile terminal within the multiple beams; and communicating with the satellite using the subcarrier group for the communication with the satellite.

Abstract translation: 提供一种移动终端在基于正交频分复用（OFDM）的多波束卫星系统中对所有波束重复使用相同频带的通信方法，该方法包括：从卫星接收移动终端的位置信息，以确定 移动终端在多个波束内的位置; 根据移动终端在多个波束内的位置，确定与卫星进行通信的子载波组; 并使用副载波组与卫星进行通信，以与卫星进行通信。

公开(公告)号：US07346069B2

公开(公告)日：2008-03-18

申请号：US10625209

申请日：2003-07-22

Applicant: Ki-Dong Lee ,  Yong Hoon Cho ,  Ho Jin Lee

Inventor： Ki-Dong Lee ,  Yong Hoon Cho ,  Ho Jin Lee

IPC: H04L12/28

CPC classification number: H04B7/18584

Abstract: A dynamic resource allocation apparatus and method for assigning timeslot in a return channel in multi-frequency time division multiple access MF-TDMA in order to have a maximum throughput is disclosed. The apparatus includes: resource request amount collection unit for accumulating a requested resource amount corresponding to each of terminals during a super-frame period; resource request amount processing unit for dividing an accumulated requested resource amount by the number of frame pairs in a super frame and storing a sum of a result of dividing and rounding up a remain of the division to a nearest integer as a request amount of each corresponding terminal; and resource allocation unit for deciding a time slot allocated at each of terminals corresponding to a frame pair based on optimal allocation amount, which is decided based on the request amount by the requested amount processing unit.

Abstract translation: 公开了一种用于在多频时分多址MF-TDMA中的返回信道中分配时隙以便具有最大吞吐量的动态资源分配装置和方法。 该装置包括：资源请求量收集单元，用于在超帧期间累积对应于每个终端的请求资源量; 资源请求量处理单元，用于将累积的请求资源量除以超帧中的帧对的数量，并将除法和舍入结果的和除以最小整数作为每个对应的请求量 终奌站; 以及资源分配单元，用于基于由请求量处理单元基于所述请求量确定的最佳分配量来确定在与每一个对应的终端处分配的时隙。

公开(公告)号：US06684074B1

公开(公告)日：2004-01-27

申请号：US09610803

申请日：2000-07-06

Applicant: Sung Uk Hong ,  Shin Ha Kang ,  Ho Jin Lee

Inventor： Sung Uk Hong ,  Shin Ha Kang ,  Ho Jin Lee

IPC: H04Q720

CPC classification number: H04W88/08 ,  H04W16/24 ,  H04W36/18

Abstract: A switching device in a digital unit of a multi-sector base station, which uses switching elements incorporated in the digital unit and adapted to switch 3 sectors into multiple sectors, thereby being capable of implementing a multi-sector base station system allowing a softer handoff among all sectors. The switching elements are adapted to support the switching of the next channel element stage in the digital unit included in the existing 3-sector base station to implement a base station system, thereby allowing all handoff between sectors to be conducted in a softer handoff fashion while allowing all channel elements to be set for all sectors covered by the base station upon setting a traffic channel, thereby achieving an efficient allocation of channel elements. In accordance with the present invention, a 6-sector base station system is efficiently implemented in accordance with the setting of a timing capable of supporting an addition of switching elements, an operation of switching elements upon setting pilot, sync, and access channels, and an operation of switching elements upon a handoff and call setting. Since one digital unit can support 6 sectors, the overall configuration of the multi-sector base station system can be simplified and easily made.

Abstract translation: 一种多扇区基站的数字单元中的开关装置，其使用并入数字单元中的开关元件，并且适于将3个扇区切换成多个扇区，从而能够实现允许更软切换的多扇区基站系统 在所有部门之间。 开关元件适于支持包括在现有3扇区基站中的数字单元中的下一个信道单元级的切换以实现基站系统，从而允许扇区之间的所有切换以较软的切换方式进行，同时 允许在设置业务信道时为基站覆盖的所有扇区设置所有信道单元，从而实现信道单元的有效分配。 根据本发明，根据能够支持开关元件的添加的定时的设置，设置导频，同步和接入信道时的开关元件的操作，可以有效地实现6扇区基站系统，以及 在切换和呼叫设置时切换元件的操作。 由于一个数字单元可以支持6个扇区，所以可以简化和容易地实现多扇区基站系统的整体配置。