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11. 发明公开

KR20070107521A METHOD FOR GENERATING OF NON BINARY STRUCTURED LOW DENSITY PARITY CHECK CODE 审中-公开
标题翻译：生成非二元结构低密度奇偶校验码的方法
公开(公告)号：KR20070107521A
公开(公告)日：2007-11-07
申请号：KR20060040135
申请日：2006-05-03
申请人： SAMSUNG ELECTRONICS CO LTD
发明人： LIM CHI WOO , PARK SUNG EUN , PARK DONG SEEK , KIM JAE YOEL , CHOI SEUNG HOON , KYUNG GYU BUM , JEONG HONG SIL , LESTABLE THIERRY
IPC分类号： H03M13/11
CPC分类号： H03M13/033 , H03M13/116 , H03M13/1171
摘要： A non-binary structured LDPC(Low Density Parity Check) code generating method is provided to improve decoding performance by generating a parity check matrix in a non-binary structured LDPC code. In a non-binary LDPC code generating method, a non-binary LDPC code is defined by a parity check matrix comprising a plurality of sub matrixes. Plural sub matrixes include zero and identity matrixes. The non-binary identity matrix is generated in satisfying one of several conditions determined in advance. The non-binary identity matrix is generated by satisfying the following formula 7, Q=alpha^F(i).P^i, 1
摘要翻译：提供了一种非二进制结构LDPC（Low Density Parity Check，低密度奇偶校验）码生成方法，通过生成非二进制结构LDPC码中的奇偶校验矩阵来提高解码性能。在非二进制LDPC码生成方法中，通过包括多个子矩阵的奇偶校验矩阵来定义非二进制LDPC码。多个子矩阵包括零和单位矩阵。生成非二进制单位矩阵，以满足预先确定的若干条件之一。通过满足以下公式7生成非二进制单位矩阵：Q =α^ F（i）.P ^ i，1 <= i <= Zf。阿尔法是伽罗瓦域的原始元素。 F（i）是一对一映射函数。的。是一个标量产品。 P ^ i是通过将单位矩阵的每行的第一位置循环移位i而产生的矩阵。 Zf是预定大小的正方形矩阵。

12. 发明公开

KR20070084952A APPARATUS AND METHOD FOR RECEIVING SIGNAL IN A COMMUNICATION SYSTEM 审中-公开
标题翻译：用于在通信系统中接收信号的装置和方法
公开(公告)号：KR20070084952A
公开(公告)日：2007-08-27
申请号：KR20060017365
申请日：2006-02-22
申请人： SAMSUNG ELECTRONICS CO LTD
发明人： PARK SUNG EUN , PARK DONG SEEK , KIM JAE YOEL
IPC分类号： H03M13/11 , H03M13/27 , H04L1/00 , H04L27/00
CPC分类号： H03M13/1111 , H03M13/6577 , H03M13/6594
摘要： An apparatus and a method for receiving a signal in a communication system are provided to improve a decoding performance by performing a check node calculation and a variable node calculation by differentiating quantization schemes corresponding to the number of quantization bits. A method for receiving a signal in a communication system includes the steps of: receiving a signal; and decoding the received signal by an LDPC decoding scheme corresponding to the number of quantization bits and detecting the decoded signal as an information vector. The received signal decoding process includes the steps of: determining a quantization scheme corresponding to the number of quantization bits(611); quantizing the received signal to correspond to the determined quantization scheme(613,615); and check-node-calculating and variable-node-calculating the quantization signal, and detecting the calculated signal as the information vector.
摘要翻译：提供一种用于在通信系统中接收信号的装置和方法，以通过对与量化比特数量相对应的量化方案进行微分来执行校验节点计算和可变节点计算来提高解码性能。一种用于在通信系统中接收信号的方法包括以下步骤：接收信号; 以及通过对应于量化比特数量的LDPC解码方案对接收信号进行解码，并检测解码信号作为信息向量。接收信号解码处理包括以下步骤：确定与量化比特数对应的量化方案（611）; 量化所接收的信号以对应于所确定的量化方案（613,615）; 以及校验节点计算和可变节点计算量化信号，并且检测计算出的信号作为信息向量。

13. 发明专利

ES2208034A1 PERFECCIONAMIENTOS EN EL OBJETO DE LA PATENTE ESPAÑOLA N. 9950085 POR "PROCEDIMIENTO DE MULTIPLEXADO PARA LA COMUNICACION MULTIMEDIA". 未知
公开(公告)号：ES2208034A1
公开(公告)日：2004-06-01
申请号：ES200102635
申请日：2001-11-28
申请人： SAMSUNG ELECTRONICS CO LTD , REGENTS OR THE UNIVERSITY OF C
发明人： PARK DONG SEEK , VILLASENOR JOHN
IPC分类号： H04J3/16 , H04L29/06 , H04N7/52
摘要： Perfeccionamientos en el objeto de la patente española n° 9950085, por "Procedimiento de multiplexado para la comunicación multimedia" que es compatible con el protocolo H.223 por medio del cambio de un cabezal de una unidad de datos de protocolo de multiplexado (MUX-PDU), que incluye las etapas de codificar datos de los media, y multiplexar los datos de los media codificados en la etapa (a) en unidades de un marco predeterminado, e introducir una segunda bandera de longitud predeterminada con una autocorrelación en el marco después de una primera bandera que presenta la apertura y el cierre del marco, con lo cual se aumenta la probabilidad de detectar la MUX-PDU por medio de un receptor mediante la adición de una bandera que presenta una alta autocorrelación al marco de la MUX-PDU del protocolo H.223, aumentando de este modo la flexibilidad respecto a errores.

14. 发明专利

GB2390958A Multimedia multiplexing with supplementary synchronisation bits 未知
公开(公告)号：GB2390958A
公开(公告)日：2004-01-21
申请号：GB0216467
申请日：2002-07-16
申请人： SAMSUNG ELECTRONICS CO LTD , UNIV CALIFORNIA
发明人： PARK DONG SEEK , VILLASENOR JOHN D
IPC分类号： H04J3/00 , H04N7/08 , H04J3/04 , H04J3/16 , H04L12/66 , H04L29/06 , H04N7/081 , H04N7/15
摘要： A multiplexing/demultiplexing method in a multimedia digital system comprises encoding multimedia data, multiplexing the encoded multimedia data into predetermined units (eg protocol data units [PDU's]) , each unit having a synchronisation code, and adding at least one bit to the synchronisation code of each multiplexed unit. The synchronisation code may comprise a pseudo-random (PN) code. The bits may be added to the High Level Data Link Control (HDLC) flag (342, fig.3B; 352, fig.3D) and/or header (354, fig.3D) of an H.223 multiplexed signal (fig.3A), or additional flags (343 and 355, fig.3E) may be added after the HDLC and/or header. The multiplexing may be applied to an H.324 system and the method is particularly suitable for use in systems with error prone channels such as wireless H.324M systems.

15. 发明专利

CA2295148C MULTIMEDIA MULTIPLEXING METHOD 未知
公开(公告)号：CA2295148C
公开(公告)日：2003-07-08
申请号：CA2295148
申请日：1998-05-22
申请人： SAMSUNG ELECTRONICS CO LTD , UNIV CALIFORNIA
发明人： PARK DONG SEEK , VILLASENOR JOHN
IPC分类号： H04N7/26 , H04J3/00 , H04J3/06 , H04J3/16 , H04L7/04 , H04L12/44 , H04L29/06 , H04L29/08 , H04N7/08 , H04N7/081 , H04N7/52 , H04N19/89 , H04N21/2383 , H04N21/438
摘要： A multiplexing method for multimedia communication is provided, which is compatible with the H.223 protocol by changing a header of a multiplex protocol data unit (MUX-PDU). The multiplexing method includes the steps of encoding media data, and multiplexing the media data encoded in the step (a) in units of a predetermined frame, and inserting a second flag (150) having a predetermined length with an auto-correlation in the frame after a first flag (140) having the opening and closing of the frame. Therefore, the probability of detecting the MUX-PDU by a receiver is increased by adding a flag (150) having a high auto-correlation to the H.223 MUX-PDU frame, thereby increasing error-resiliency.

16. 发明专利

ES2155042B1 未知
公开(公告)号：ES2155042B1
公开(公告)日：2001-12-16
申请号：ES9950085
申请日：1998-05-22
申请人： SAMSUNG ELECTRONICS CO LTD , UNVERSITY OF CALIFORNIA
发明人： PARK DONG SEEK , VILLASENOR JOHN
IPC分类号： H04N7/26 , H04J3/00 , H04J3/06 , H04J3/16 , H04L7/04 , H04L12/44 , H04L29/06 , H04L29/08 , H04N7/08 , H04N7/081 , H04N7/52 , H04N19/89 , H04N21/2383 , H04N21/438
摘要： A multiplexing method for multimedia communication is provided, which is compatible with the H.223 protocol by changing a header of a multiplex protocol data unit (MUX-PDU). The multiplexing method includes the steps of encoding media data, and multiplexing the media data encoded in the step (a) in units of a predetermined frame, and inserting a second flag having a predetermined length with an auto-correlation into the frame after a first flag representing the opening and closing of the frame. Therefore, the probability of detecting the MUX-PDU by a receiver is increased by adding a flag having a high auto-correlation to the H. 223 MUX-PDU frame, thereby increasing error-resiliency.

17. 发明专利

DE19881949T1 未知
公开(公告)号：DE19881949T1
公开(公告)日：2000-04-13
申请号：DE19881949
申请日：1998-01-12
申请人： SAMSUNG ELECTRONICS CO LTD , UNIV CALIFORNIA
发明人： PARK DONG SEEK , VILLASENOR JOHN , CHEN FENG , DOWLING BRENDAN , LUTTRELL MAX
IPC分类号： H04L1/16 , H03M13/00 , H03M13/01 , H03M13/23 , H03M13/35 , H04L1/00 , H04L1/08 , H04L1/18 , H04L12/56 , H04N7/15
摘要： An error prevention method for multimedia improves data recovery and channel throughput in channels which cause a random error and a burst error by using a rate compatible punctured convolutional code (RCPC) and an automatic retransmission on request (ARQ). In a process of decoding a plurality of packets of given information, the error prevention method includes the steps of a) decoding the first of the N packets to be decoded, b) decoding the second of the N packets when an error occurs in the decoding in step a), c) decoding the combination s of the previous decoding error packets when an error occurs in step b), d) decoding the next of the N packets to be decoded when an error occurs in the decoding in step c), e) repeating steps from c) on until the error no longer occurs or all the n packets have been attempted to decode. The error prevention method has the characteristics of both Type-1 and Type-2 ARQ methods. Therefore, one can obtain constant channel throughput in the burst error containing channel, the random error containing channel, and a channel wherein the two error patterns coexist simultaneously.

18. 发明专利

DE19882691B4 Adaptive multiplexing and demultiplexing method for H.324 system performing 1st and 2nd multiplexing and demultiplexing processes with complexity of H.223 and H.223/Annex A recommendation respectively 未知
公开(公告)号：DE19882691B4
公开(公告)日：2006-07-06
申请号：DE19882691
申请日：1998-06-09
申请人： SAMSUNG ELECTRONICS CO LTD , UNIV CALIFORNIA
发明人： PARK DONG SEEK , VILLASENOR JOHN
IPC分类号： H04J3/04 , H04J3/00 , H04N7/08 , H04J3/16 , H04L12/66 , H04L29/06 , H04N7/081 , H04N7/15
摘要： Multiplexing can be achieved selectively according to specific circumstances by selecting between several multiplexers and demultiplexers to match a particular circumstance via a trade off of overhead of the multiplexers and demultiplexers using several multiplexers and demultiplexers with different complexities. Performs 1st and 2nd multiplexing and demultiplexing processes with complexity of H.223 and H.223/Annex A recommendation respectively by inserting 3rd multiplexing and demultiplexing processes with different complexities between the 1st and 2nd processes.

19. 发明专利

BR0208449A 未知
公开(公告)号：BR0208449A
公开(公告)日：2004-03-02
申请号：BR0208449
申请日：2002-03-25
申请人： SAMSUNG ELECTRONICS CO LTD
发明人： BAE BEOM-SIK , PARK DONG SEEK , KOO CHANG-HOI , KIM DAE-GYUN
IPC分类号： H04B1/38 , H04B7/26 , H04J13/00 , H04L1/00 , H04L1/12 , H04W28/00 , H04W28/22 , H04B7/005
摘要： A reverse transmission controlling method in a mobile communication system, after receiving forward information, commanding the increase or decrease of the reverse data rate received on a forward control channel from a base station, a mobile station determines whether the previous rate increase available information transmitted to the base station on a reverse control channel before reception of the forward information indicates that a reverse data rate increase is available, if the forward information commands a reverse data rate increase. The mobile station increases the current reverse data rate to a data rate equal to or less than a maximum reverse data rate if the rate increase available information indicates that the reverse data rate increase is available, and transmits reverse data at the increased reverse data rate.

20. 发明专利

GB2390959A Multimedia multiplexing with supplementary header bits 未知
公开(公告)号：GB2390959A
公开(公告)日：2004-01-21
申请号：GB0216470
申请日：2002-07-16
申请人： SAMSUNG ELECTRONICS CO LTD , UNIV CALIFORNIA
发明人： PARK DONG SEEK , VILLASENOR JOHN D
IPC分类号： H04J3/00 , H04N7/08 , H04J3/04 , H04J3/16 , H04L12/66 , H04L29/06 , H04N7/081 , H04N7/15
摘要： A multiplexing/demultiplexing method in a multimedia digital system comprises encoding multimedia data, multiplexing the encoded multimedia data into predetermined units (eg protocol data units [PDU's], fig.3A) , each unit having a header 320, and adding at least one bit to the header of each multiplexed unit (fig.3D). The multiplexing may be applied to an H.324 system and the method is particularly suitable for use in systems with error prone channels such as wireless H.324M systems.

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