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    APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING A QUASI-CYCLIC LOW DENSITY PARITY CHECK CODE IN A MULTIMEDIA COMMUNICATION SYSTEM
    41.
    发明申请
    APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING A QUASI-CYCLIC LOW DENSITY PARITY CHECK CODE IN A MULTIMEDIA COMMUNICATION SYSTEM 审中-公开
    在多媒体通信系统中传输和接收准周期性低密度奇偶校验码的装置和方法

    公开(公告)号：US20150113361A1

    公开(公告)日：2015-04-23

    申请号：US14579146

    申请日：2014-12-22

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Hyun-Koo YANG ,  Sung-Hee HWANG ,  Seho MYUNG

    IPC: H03M13/11

    CPC classification number: H03M13/116 ,  H03M13/1171 ,  H03M13/611 ,  H03M13/616 ,  H03M13/618 ,  H03M13/6362 ,  H03M13/6516 ,  H03M13/6544 ,  H04L1/0041

    Abstract: A method is provided for transmitting a Low Density Parity Check (LDPC) code by a signal transmission apparatus in a multimedia system. The method includes generating the LDPC code based on a resulting parity check matrix, which is generated by performing a scaling down operation on a base parity check matrix; and transmitting the LDPC code. The scaling down operation is performed based on a scaling factor for determining a size of each permutation matrix in the resulting parity check matrix and a size of each zero matrix included in the resulting parity check matrix, and the scaling factor is determined based on a number of column blocks included in the base parity check matrix and a size of each permutation matrix included in the base parity check matrix.

    Abstract translation: 提供一种用于通过多媒体系统中的信号发送装置发送低密度奇偶校验（LDPC）码的方法。 该方法包括：通过对基本奇偶校验矩阵执行缩小运算而生成的基于得到的奇偶校验矩阵的LDPC码; 以及发送LDPC码。 基于用于确定所得到的奇偶校验矩阵中的每个置换矩阵的大小的缩放因子以及所得到的奇偶校验矩阵中包括的每个零矩阵的大小来执行缩小运算，并且缩放因子基于数量 包括在基本奇偶校验矩阵中的列块和包括在基本奇偶校验矩阵中的每个置换矩阵的大小。

    APPARATUS AND METHOD OF TRANSMITTING AND RECEIVING PACKET IN A BROADCASTING AND COMMUNICATION SYSTEM
    42.
    发明申请
    APPARATUS AND METHOD OF TRANSMITTING AND RECEIVING PACKET IN A BROADCASTING AND COMMUNICATION SYSTEM 审中-公开
    在广播和通信系统中发送和接收分组的装置和方法

    公开(公告)号：US20130294447A1

    公开(公告)日：2013-11-07

    申请号：US13888663

    申请日：2013-05-07

    Applicant: SAMSUNG ELECTRONICS CO. LTD.

    Inventor： Seho MYUNG ,  Sung-Hee HWANG ,  Hyun-Koo YANG

    IPC: H04L29/06

    CPC classification number: H04L69/22 ,  H04L1/0008 ,  H04L1/0041 ,  H04L1/0071 ,  H04L65/4076 ,  H04L65/607 ,  H04L69/40

    Abstract: A method and apparatus of transmitting/receiving a packet in a system are provided. The method includes dividing each symbol corresponding to each row of a two-dimensional array having a predetermined symbol size (T) as a width into a predetermined number (m) of regions, sequentially arranging source packets to be transmitted, starting from a first column of a first row of the two-dimensional array, setting a remaining part of a region in which last data of a source packet is allocated in a last row in which the source packet is arranged to a predetermined value, arranging a next source packet, starting from a starting point of a region next to the region in which the last data is allocated in the last row in which the source packet is arranged, constructing a source block by arranging all of the source packets in the two-dimensional array, FEC-encoding the source block, and transmitting the FEC-encoded source block.

    Abstract translation: 提供了一种在系统中发送/接收分组的方法和装置。 该方法包括将具有预定符号大小（T）的二维阵列的每行对应的每个符号作为宽度划分为预定数量（m）个区域，从第一列开始依次排列要发送的源分组 将所述源数据包的最后一行中分配了源数据包的最后数据的区域的剩余部分设定为预定值，排列下一个源数据包， 从在其中排列有源分组的最后一行中分配最后数据的区域的下一个区域的起始点开始，通过排列二维阵列中的所有源分组来构造源块，FEC - 对源块进行编码，并发送FEC编码的源块。

    APPARATUS AND METHOD TO DETECT COORDINATES IN A PENBASED DISPLAY DEVICE
    44.
    发明申请
    APPARATUS AND METHOD TO DETECT COORDINATES IN A PENBASED DISPLAY DEVICE 有权
    检测显示装置中的坐标的装置和方法

    公开(公告)号：US20130265287A1

    公开(公告)日：2013-10-10

    申请号：US13856661

    申请日：2013-04-04

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Seho MYUNG ,  Sung-Hee HWANG

    IPC: G06F3/0354

    CPC classification number: G06F3/0354 ,  G06F3/0317 ,  G06F3/0321 ,  G06F3/03542 ,  G06F3/03545 ,  G09G3/00

    Abstract: An apparatus and method to detect coordinates in a pen-based display device are provided. In the apparatus, when an electronic pen is placed at a specific position on a display, an image of a pixel group corresponding to the specific position is captured through a camera provided in the electronic pen, a reference point is detected in the pixel group by processing the captured image of the pixel group, an area type of the captured image is determined based on the reference point, values of a coordinate indications corresponding to the position of the pixel group are determined, selectively correcting the determined values of the coordinate indications according to the determined area type to determine final values of the coordinate indications, and applying a predetermined coordinates calculation rule to the determined final values of the coordinate indications to determine final coordinates of the electronic pen.

    Abstract translation: 提供了一种用于检测基于笔的显示装置中的坐标的装置和方法。 在该装置中，当将电子笔放置在显示器上的特定位置时，通过设置在电子笔中的相机捕获与特定位置相对应的像素组的图像，通过在像素组中检测参考点 处理像素组的拍摄图像，基于参考点确定拍摄图像的区域类型，确定与像素组的位置相对应的坐标指示值，根据所确定的坐标指示值来选择性地校正坐标指示值 到确定的区域类型以确定坐标指示的最终值，以及将预定坐标计算规则应用于所确定的坐标指示的最终值，以确定电子笔的最终坐标。

    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING PACKET IN COMMUNICATION SYSTEM
    45.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING PACKET IN COMMUNICATION SYSTEM 有权

    公开(公告)号：US20230041787A1

    公开(公告)日：2023-02-09

    申请号：US17968343

    申请日：2022-10-18

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Sung-Hee HWANG ,  Hyun-Koo YANG

    IPC: H04L47/32 ,  H04L1/00 ,  H04L69/329 ,  H04N21/2383 ,  H04N21/2662 ,  H04N21/2343

    Abstract: The present invention relates to a method for transmitting a packet in a communication system, the method comprising: generating drop information indicating at least one source packet to be dropped among source packets to be transmitted and whether or not to drop each of the other source packets except the at least one source packet; performing forward error correction (FEC) encoding on the drop information and the other source packets except the at least one source packet; generating a repair packet comprising repair data for restoring the drop information and a repair symbol for restoring the other source packets except the at least one source packet; and transmitting the other source packets except the at least one source packet and the repair packet.

    APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING FORWARD ERROR CORRECTION PACKET IN MOBILE COMMUNICATION SYSTEM
    47.
    发明申请
    APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING FORWARD ERROR CORRECTION PACKET IN MOBILE COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：US20200266836A1

    公开(公告)日：2020-08-20

    申请号：US16859156

    申请日：2020-04-27

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Sung-Hee HWANG

    IPC: H03M13/27 ,  H03M13/00 ,  H04L1/00

    Abstract: An apparatus and method for transmitting/receiving a Forward Error Correction (FEC) packet in a mobile communication system are provided. In the FEC packet transmission method, an FEC packet transmission apparatus transmits an FEC delivery block to an FEC packet reception apparatus. The FEC delivery block includes N payloads. Each of the N payloads includes a payload header. Each payload header included in each of C payloads among the N payloads includes packet oriented header information and an FEC delivery block oriented header information fragment. The packet oriented header information is applied to a related payload, and the FEC delivery block oriented header information fragment is generated by fragmenting FEC delivery block oriented header information applied to the N payloads.

    METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING PACKET IN COMMUNICATION SYSTEM
    48.
    发明申请
    METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING PACKET IN COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：US20200052816A1

    公开(公告)日：2020-02-13

    申请号：US16660291

    申请日：2019-10-22

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Sung-Hee HWANG

    IPC: H04L1/00 ,  H04L29/06 ,  H03M13/00 ,  H03M13/27 ,  H03M13/13

    Abstract: The present disclosure relates to a method and a device for transmitting and receiving a packet in a communication system. A method for transmitting a packet according to the present disclosure comprises the steps of: generating at least one source block including source packets for transmitting contents; performing forward error correction (FEC) encoding and generating at least one reconstructed block including reconstructed packets for restoring the source packets; and transmitting signaling information including packet identification information on the at least one source block and a packet stream including the source packets and the reconstructed packets, wherein header information of the reconstructed packets includes the number of source packets included in each source block according to the packet identification information, and information indicating the start numbers of the source packets included in the each source block.

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