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141.发明公开
公开(公告)号：KR1020150040740A
公开(公告)日：2015-04-15
申请号：KR1020140120015
申请日：2014-09-11
Applicant: 한국전자통신연구원
IPC: H03M13/11
CPC classification number: H03M13/1165 , H03M13/1185 , H04L1/0042 , H04L1/0043
Abstract: LDPC 부호화기, 복호화기및 LDPC 부호화방법이개시된다. 본발명의일실시예에따른 LDPC 부호화기는길이가 64800이고부호율이 7/15인, LDPC 부호어를저장하기위한제1 메모리; 0으로초기화되는제2 메모리; 및패러티검사행렬(parity check matrix)에상응하는수열을이용하여상기제2 메모리에대한누적(accumulation)을수행하여, 정보비트들(information bits)에상응하는상기 LDPC 부호어를생성하는프로세서를포함한다.
Abstract translation: 公开了一种低密度奇偶校验（LDPC）编码器，LDPC解码器和LDPC编码方法。 LDPC编码器包括第一存储器，第二存储器和处理器。 第一存储器是存储长度为64800，码率为7/15的LDPC码字。 第二存储器被初始化为0.通过使用与奇偶校验矩阵（PCM）对应的序列，相对于第二存储器执行累积，处理器生成与信息位对应的LDPC码字。
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公开(公告)号：KR1020150006957A
公开(公告)日：2015-01-20
申请号：KR1020130080594
申请日：2013-07-09
Applicant: 한국전자통신연구원
CPC classification number: H04N13/122 , H04N13/106 , H04N13/139 , H04N13/194 , H04N21/816
Abstract: The present invention provides a method and an apparatus for providing a three-dimensional video streaming service to a user terminal. User property information including eyesight information about a left eye and a right eye of a user is received from the user terminal. And the user property information is transmitted to the user terminal by improving the quality of either a left image or a right image according to the eyesight information. The method for providing the three-dimensional video streaming service includes the steps of: receiving the user property information including the eyesight information for the left eye and the right eye of the user from the user terminal; and transmitting the user property information to the user terminal.
Abstract translation: 本发明提供了一种用于向用户终端提供三维视频流传输服务的方法和装置。 从用户终端接收包括用户的左眼和右眼的视力信息的用户属性信息。 并且，通过根据视力信息改善左图像或右图像的质量，将用户属性信息发送给用户终端。 提供三维视频流服务的方法包括以下步骤：从用户终端接收包括用户的左眼和右眼的视力信息的用户属性信息; 以及将用户属性信息发送到用户终端。
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公开(公告)号：KR1020130045178A
公开(公告)日：2013-05-03
申请号：KR1020120115055
申请日：2012-10-16
Applicant: 한국전자통신연구원
CPC classification number: H04L27/2649 , H03C3/40 , H04L27/0008 , H04L27/2614 , H04L27/2634
Abstract: PURPOSE: A signal transceiving method and an apparatus thereof are provided to increase the amount of transmitted data by easily performing a signal separation in a receiving side. CONSTITUTION: A first transmission processor(11) includes a S/P[Serial-to-Parallel] converting unit(110), a symbol mapping unit(111), an IFFT[inverse fast fourier transform] unit(112), a P/S[Parallel-to-Serial] converting unit(113), a scaling unit(114), and an angle modulating unit(115). The S/P converting unit converts inputted data into parallel data. The symbol mapping unit generates a symbol signal by mapping a symbol to the parallel data. The IFFT unit converts the symbol signal with IFFT. The P/S converting unit converts the IFFT-converted signal into a serial type signal. The scaling unit scales the serial type signal. The angle modulating unit modulates the scaled signal. A second transmission processor(12) includes a S/P converting unit(120), an IFFT unit(122), a P/S converting unit(123), a scaling unit(124), a phase adjusting unit(125), and an angle modulating unit(126). The S/P converting unit converts inputted data into parallel data. The phase adjusting unit adjusts the phase of a scaled signal. The angle modulating unit modulates the phase-adjusted signal. [Reference numerals] (1) Transmission device; (110,120) S/P converting unit; (111,121) Symbol mapping unit; (112,122) IFFT unit; (113,123) P/S converting unit; (114,124) Scaling unit; (115,126) Angle modulating unit; (125) Phase adjusting unit; (AA) Input data #1; (BB) Input data #2; (CC) Transmission signal
Abstract translation: 目的：提供信号收发方法及其装置，通过容易地在接收侧进行信号分离来增加发送数据量。 构成：第一发送处理器（11）包括S / P [串行到并行]转换单元（110），符号映射单元（111），IFFT [反向快速傅里叶变换]单元（112），P / [并行到串行]转换单元（113），缩放单元（114）和角度调制单元（115）。 S / P转换单元将输入的数据转换为并行数据。 符号映射单元通过将符号映射到并行数据来生成符号信号。 IFFT单元用IFFT转换符号信号。 P / S转换单元将IFFT转换的信号转换为串行类型信号。 缩放单元缩放串行类型信号。 角度调制单元调制缩放信号。 第二传输处理器（12）包括S / P转换单元（120），IFFT单元（122），P / S转换单元（123），缩放单元（124），相位调整单元（125） 和角度调制单元（126）。 S / P转换单元将输入的数据转换为并行数据。 相位调整单元调整缩放信号的相位。 角度调制单元对相位调整信号进行调制。 （附图标记）（1）传动装置; （110,120）S / P转换单元; （111,121）符号映射单元; （112,122）IFFT单位; （113,123）P / S转换单元; （114,124）缩放单元; （115,126）角度调制单元; （125）相位调整单元; （AA）输入数据＃1; （BB）输入数据＃2; （CC）传输信号
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公开(公告)号：KR1020130021318A
公开(公告)日：2013-03-05
申请号：KR1020120035202
申请日：2012-04-05
Applicant: 한국전자통신연구원
CPC classification number: H04L1/0083 , H04L1/0042 , H04L1/0047 , H04L43/0829
Abstract: PURPOSE: A payload formatting and de-formatting method for the recovery of burst data loss are provided to improve performance as much as an XOR(eXclusive OR) coding gain, to offer a UEP(Unequal Error Protection) function providing resistance to loss, and to offer a seamless service by providing a method capable of recovering the most important data even when all the data in the GoP(Group of Picture) section are lost. CONSTITUTION: A payload formatting method implemented at a transmitter includes the following steps: a step of generating an XOR operation packet(S110), by executing XOR operations based on a base layer packet and one of the enhanced layer packets of a GoP containing the base layer packet and the enhanced layer packets; a step of adding the generated XOR operation packet to the GoP(S120); a step of removing the base layer packet from the GoP(S130); a step of generating an FEC(Forward Error Correction) packet of the GoP(S140), by adding base layer packets of the front and rear GoPs separated by a predefined time interval from the GoP, and executing FEC encoding; and a step of adding the generated FEC packet(S150). [Reference numerals] (AA) Start; (BB) End; (S110) Generating an XOR operation packet by using a base layer packet in a GoP and a first enhanced layer packet; (S120) Adding the XOR operation packet generated on the GoP; (S130) Removing the base layer packet from the GoP; (S140) Generating an FEC packet for the GoP by using base layer packet of the front or rear GoP; (S150) Adding the set FEC packet to the GoP
Abstract translation: 目的：提供用于恢复突发数据丢失的有效载荷格式化和解格式化方法，以提高性能，尽可能多地提供XOR（独占OR）编码增益，以提供提供抵抗损失的UEP（不等错误保护）功能，以及 通过提供一种能够恢复最重要数据的方法来提供无缝服务，即使GoP（图片组）部分中的所有数据都丢失。 构成：在发射机上实现的有效载荷格式化方法包括以下步骤：通过基于基本层分组和包含基础的GoP的增强层分组之一执行XOR运算来生成XOR运算分组的步骤（S110） 层数据包和增强层数据包; 将生成的异或运算分组添加到GoP的步骤（S120）; 从GoP去除基层分组的步骤（S130）; 通过添加从GoP分离预定时间间隔的前后GoP的基本层分组，并执行FEC编码，生成GoP的FEC（前向纠错）分组的步骤（S140） 以及添加所生成的FEC分组的步骤（S150）。 （附图标记）（AA）开始; （BB）结束; （S110）通过使用GoP中的基本层分组和第一增强层分组生成XOR运算分组; （S120）添加GoP上生成的异或运算包; （S130）从GoP中删除基本层数据包; （S140）通过使用前端或后端GoP的基本层数据包为GoP生成FEC数据包; （S150）将设置的FEC包添加到GoP
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公开(公告)号：KR1020130008438A
公开(公告)日：2013-01-22
申请号：KR1020110135468
申请日：2011-12-15
Applicant: 한국전자통신연구원
CPC classification number: H04L1/004 , H04L2012/5664
Abstract: PURPOSE: A forward error correction control method in a multimedia packet transmission network is provided to offer a smooth forward error correction function between a transmission part and reception part by providing a kit header format. CONSTITUTION: An arrived MMT packet 1 adjusts length of an MMT packet to length of Smax by adding a D-layer packet header(121a), an MMT payload(121b) and a first size padding(121c). An arrived MMT packet 2 adjusts length of an MMT packet to length of Smax by adding a second size padding to the D-layer packet header and MMT payload. An arrived MMT packet k adjusts length of an MMT packet to length of Smax by adding a predetermined size padding to the D-layer packet header and MMT payload. Padding data are removed after erasure coding. An original MMT packet and a parity packet are transmitted. [Reference numerals] (AA) Source block
Abstract translation: 目的：提供多媒体分组传输网络中的前向纠错控制方法，通过提供套件头格式，在发送部分和接收部分之间提供平滑的前向纠错功能。 构成：到达的MMT包1通过添加D层包头（121a），MMT有效载荷（121b）和第一尺寸填充（121c）来调整MMT包的长度到Smax的长度。 到达的MMT分组2通过向D层分组报头和MMT有效载荷添加第二大小的填充来调整MMT分组的长度到Smax的长度。 到达的MMT分组k通过将预定大小的填充添加到D层分组报头和MMT有效载荷来调整MMT分组的长度到Smax的长度。 擦除编码后，删除填充数据。 发送原始MMT分组和奇偶校验分组。 （附图标记）（AA）源块
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Patent Agency Ranking
公开(公告)号：KR1020120073095A
公开(公告)日：2012-07-04
申请号：KR1020110130094
申请日：2011-12-07
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A re-transmitting and re-receiving method of a packet in an overlay network is provided to efficiently re-transmit a packet by preventing radio resources from being wasted in an overlay network for high speed and massive wireless telecommunication. CONSTITUTION: A first base station transmits a packet to a terminal and a second base station(S110). The second base station notifies the normal reception state of the packet to the terminal(S120). The terminal notifies the normal reception state of the packet to the first base station and the second base station(S130). The first base station and the second base station receiving an NACK(Negative Acknowledgement) signal from the terminal determines a base station which will take charge of retransmission. The first base station and the second base station performs retransmission according to the determination(S140).
Abstract translation: 目的：提供覆盖网络中的分组的重传和再接收方法，通过防止无线资源浪费在覆盖网络中以实现高速和大规模无线电信，从而有效地重发数据包。 构成：第一基站向终端和第二基站发送分组（S110）。 第二基站向终端通知分组的正常接收状态（S120）。 终端向第一基站和第二基站通知分组的正常接收状态（S130）。 从终端接收到NACK（否定确认）信号的第一基站和第二基站确定将负责重传的基站。 第一基站和第二基站根据判定进行重发（S140）。
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公开(公告)号：KR102240748B1
公开(公告)日：2021-04-16
申请号：KR1020150009381
申请日：2015-01-20
Applicant: 한국전자통신연구원
Abstract: 비트인터리버, BICM 장치및 비트인터리빙방법이개시된다. 본발명의일실시예에따른비트인터리버는길이가 64800이고부호율이 3/15인 LDPC 부호어를저장하는제1 메모리; 상기 LDPC 부호어를, 상기 LDPC 부호어의패러럴팩터(parallel factor)에상응하는사이즈의비트그룹단위로인터리빙하여인터리빙된부호어를생성하는프로세서; 및상기인터리빙된부호어를 QPSK 변조를위한변조기로제공하는제2 메모리를포함한다.
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