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64 条记录 (耗时 0.035 秒)

    Apparatus and method of transmitting and receiving packet in a broadcasting and communication system
    43.
    发明授权
    Apparatus and method of transmitting and receiving packet in a broadcasting and communication system 有权

    公开(公告)号：US10218821B2

    公开(公告)日：2019-02-26

    申请号：US13888663

    申请日：2013-05-07

    申请人： Samsung Electronics Co. Ltd.

    发明人： Seho Myung ,  Sung-Hee Hwang ,  Hyun-Koo Yang

    IPC分类号： H04L29/06 ,  H04L29/14 ,  H04L1/00

    摘要： 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.

    Apparatus and method for transmitting and receiving forward error correction packet
    45.
    发明授权
    Apparatus and method for transmitting and receiving forward error correction packet 有权

    公开(公告)号：US09667384B2

    公开(公告)日：2017-05-30

    申请号：US15225132

    申请日：2016-08-01

    申请人： Samsung Electronics Co., Ltd.

    发明人： Sung-Hee Hwang ,  Hyun-Koo Yang ,  Seho Myung

    IPC分类号： H03M13/00 ,  H04L1/00

    CPC分类号： H04L1/0083 ,  H04L1/0041

    摘要： A method and an apparatus for transmitting and receiving a packet in a broadcasting and communication system are provided. The method includes splitting a source packet block including source packets into a plurality of source packet subblocks, converting the source packet subblocks to source symbol subblocks, respectively, generating a plurality of first repair symbol blocks by encoding the source packet subblocks using a first error correction code, configuring an error correction source packet by adding a source error correction payload IDentifier (ID) to source symbols included in the source symbol subblocks and configuring an error correction repair packet by adding a repair error correction payload ID to repair symbols included in the first repair symbol subblocks, and transmitting the error correction source packet and the error correction repair packet.

    Method and apparatus for transmitting and receiving packet in a communication system
    47.
    发明授权
    Method and apparatus for transmitting and receiving packet in a communication system 有权
    用于在通信系统中发送和接收分组的方法和装置

    公开(公告)号：US09106376B2

    公开(公告)日：2015-08-11

    申请号：US13873739

    申请日：2013-04-30

    申请人： Samsung Electronics Co. Ltd.

    发明人： Sung-Hee Hwang ,  Kyung-Mo Park ,  Hyun-Koo Yang

    IPC分类号： H03M13/00 ,  H04L1/00

    CPC分类号： H04L1/0041 ,  H04L1/004 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0075 ,  H04L1/0083

    摘要： A method for transmitting a packet in a communication system is provided. The method includes dividing a data stream into data payloads of a predetermined size and adding a common header to each of the data payloads, to generate a source payload, adding a first Forward Error Correction (FEC) payload Identifier (ID) to the source payload and applying an FEC code thereto, to generate an FEC source packet for a source payload, adding a second FEC payload ID to at least one parity payload and applying an FEC code thereto, to generate an FEC parity packet for the at least one parity payload, and transmitting the FEC source packet and the FEC parity packet.

    摘要翻译： 提供了一种用于在通信系统中发送分组的方法。 该方法包括将数据流划分成预定大小的数据有效载荷，并将公共报头添加到每个数据有效载荷，以产生源有效载荷，向源有效载荷添加第一前向纠错（FEC）有效载荷标识符（ID） 以及向其施加FEC码，以产生用于源有效载荷的FEC源分组，将第二FEC有效载荷ID添加到至少一个奇偶校验有效载荷并向其施加FEC码，以产生用于所述至少一个奇偶校验有效载荷的FEC奇偶校验分组 ，并发送FEC源分组和FEC奇偶校验分组。

    Apparatus and method for transmitting and receiving a quasi-cyclic low density parity check code in a multimedia communication system
    48.
    发明授权
    Apparatus and method for transmitting and receiving a quasi-cyclic low density parity check code in a multimedia communication system 有权
    一种用于在多媒体通信系统中发送和接收准循环低密度奇偶校验码的装置和方法

    公开(公告)号：US09059741B2

    公开(公告)日：2015-06-16

    申请号：US14579146

    申请日：2014-12-22

    申请人： Samsung Electronics Co., Ltd.

    发明人： Hyun-Koo Yang ,  Sung-Hee Hwang ,  Seho Myung

    IPC分类号： H03M13/00 ,  G06F11/00 ,  H03M13/11

    CPC分类号： H03M13/116 ,  H03M13/1171 ,  H03M13/611 ,  H03M13/616 ,  H03M13/618 ,  H03M13/6362 ,  H03M13/6516 ,  H03M13/6544 ,  H04L1/0041

    摘要： 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.

    摘要翻译： 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 for transmitting and receiving a quasi-cyclic low density parity check code in a multimedia communication system
    49.
    发明授权
    Apparatus and method for transmitting and receiving a quasi-cyclic low density parity check code in a multimedia communication system 有权
    一种用于在多媒体通信系统中发送和接收准循环低密度奇偶校验码的装置和方法

    公开(公告)号：US08918697B2

    公开(公告)日：2014-12-23

    申请号：US13674651

    申请日：2012-11-12

    申请人： Samsung Electronics Co., Ltd.

    发明人： Hyun-Koo Yang ,  Sung-Hee Hwang ,  Seho Myung

    IPC分类号： H03M13/00 ,  G06F11/00 ,  H03M13/11

    CPC分类号： H03M13/116 ,  H03M13/1171 ,  H03M13/611 ,  H03M13/616 ,  H03M13/618 ,  H03M13/6362 ,  H03M13/6516 ,  H03M13/6544 ,  H04L1/0041

    摘要： An apparatus and method are provided for transmitting and receiving a quasi-cyclic Low Density Parity Check (LDPC) code in a multimedia communication system. In the method, a signal transmission apparatus generates a quasi-cyclic LDPC code, and transmits the quasi-cyclic LDPC code to a signal reception apparatus. The quasi-cyclic LDPC code is generated by encoding an information word vector using a child parity check matrix, generated by performing one of a scaling operation, a row separation operation, and a row merge operation on a parent parity check matrix. In the scaling operation, a size of the child parity check matrix is determined. In the row separation operation, each of rows included in the parent parity check matrix is separated. In the row merge operation, the rows included in the parent parity check matrix are merged.

    摘要翻译： 提供了一种用于在多媒体通信系统中发送和接收准循环低密度奇偶校验（LDPC）码的装置和方法。 在该方法中，信号发送装置生成准循环LDPC码，并将准循环LDPC码发送到信号接收装置。 通过对父校验矩阵执行缩放操作，行分离操作和行合并操作之一生成的子奇偶校验矩阵来生成准循环LDPC码。 在缩放操作中，确定子奇偶校验矩阵的大小。 在行分离操作中，包括在父奇偶校验矩阵中的行中的每一行被分离。 在行合并操作中，包含在父校验矩阵中的行被合并。

    APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING AN APPLICATION LAYER-FORWARD ERROR CORRECTION PACKET IN MULTIMEDIA COMMUNICATION SYSTEM
    50.
    发明申请
    APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING AN APPLICATION LAYER-FORWARD ERROR CORRECTION PACKET IN MULTIMEDIA COMMUNICATION SYSTEM 有权
    用于传输和接收多媒体通信系统中的应用层前向纠错分组的装置和方法

    公开(公告)号：US20130117638A1

    公开(公告)日：2013-05-09

    申请号：US13672233

    申请日：2012-11-08

    申请人： Samsung Electronics Co., Ltd.

    发明人： Hyun-Koo Yang ,  Sung-Hee Hwang ,  Seho Myung

    IPC分类号： H03M13/05

    CPC分类号： H04L1/0041 ,  H03M13/05 ,  H03M13/373 ,  H03M13/6362 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0068

    摘要： An apparatus and method for transmitting and receiving an Application Layer-Forward Error Correction (AL-FEC) packet in a multimedia communication system are provided. In the AL-FEC packet transmission method, an AL-FEC packet transmission apparatus generates AL-FEC packets, and transmits the AL-FEC packets to an AL-FEC packet reception apparatus, wherein each of the AL-FEC packets includes an AL-FEC codeword symbol and an AL-FEC header, the AL-FEC codeword symbol is one of AL-FEC codeword symbols included in an AL-FEC codeword block, and the AL-FEC header includes order information indicating an order of an AL-FEC codeword symbol into which the AL-FEC header is inserted among the AL-FEC codeword symbols included in the AL-FEC codeword block.

    摘要翻译： 提供了一种用于在多媒体通信系统中发送和接收应用层前向纠错（AL-FEC）分组的装置和方法。 在AL-FEC分组发送方法中，AL-FEC分组发送装置生成AL-FEC分组，并将AL-FEC分组发送到AL-FEC分组接收装置，其中，每个AL-FEC分组包括AL- FEC码字符号和AL-FEC报头，AL-FEC码字符号是包括在AL-FEC码字块中的AL-FEC码字符号之一，并且AL-FEC报头包括指示AL-FEC的顺序的顺序信息 在包括在AL-FEC码字块中的AL-FEC码字符号之间插入AL-FEC头的码字符号。