METHOD OF CODING AND DECODING A PULSE SIGNAL, IN PARTICULAR AN UWB-IR SIGNAL, AND CORRESPONDING DEVICES
    2.
    发明申请
    METHOD OF CODING AND DECODING A PULSE SIGNAL, IN PARTICULAR AN UWB-IR SIGNAL, AND CORRESPONDING DEVICES 审中-公开
    编码和解码脉冲信号,特别是UWB-IR信号的方法和相关设备

    公开(公告)号:WO2006072378A1

    公开(公告)日:2006-07-13

    申请号:PCT/EP2005/013447

    申请日:2005-12-14

    CPC classification number: H04B1/71632 H04B1/71637 H04L25/4902

    Abstract: The decoding of an UWB-IR signal modulated through a transmitted reference (TR) modulation scheme, comprises subtracting from the UWB-IR modulated signal, a version of said UWB-IR modulated signal delayed with a delay corresponding to the delay used in the TR modulation scheme, and decoding the resulting signal by using a non-coherent detection. Further for providing a more energy efficient way of transmitting information, a method of coding information to be conveyed by an UWB-IR signal, comprises sending within each Pulse Repetition Period (PRP) a reference pulse followed by a pulse train including at least two mutually delayed information pulses. A non-coherent detection may also be used for decoding a signal modulated through a TR-BPPM modulation scheme.

    Abstract translation: 通过传输的参考(TR)调制方案调制的UWB-IR信号的解码包括从UWB-IR调制信号中减去所述UWB-IR调制信号的一个版本,其延迟时间对应于在TR中使用的延迟 调制方案,并通过使用非相干检测来解码所得到的信号。 此外,为了提供更节能的信息传输方式,对由UWB-IR信号传送的信息进行编码的方法包括在每个脉冲重复周期(PRP)内发送一个参考脉冲,随后是包括至少两个相互 延迟信息脉冲。 非相干检测也可用于对通过TR-BPPM调制方案调制的信号进行解码。

    OPTOELEKTRONISCHES BAUELEMENT MIT LEITFÄHIGER KONTAKTSTRUKTUR

    公开(公告)号:WO2002093653A3

    公开(公告)日:2002-11-21

    申请号:PCT/EP2002/005336

    申请日:2002-05-15

    Abstract: Die vorliegende Erfindung betrifft ein optoelektronisches Bauelement zur Umwandlung elektromagnetischer Strahlung in einen intensitätsabhängigen Photostrom bestehend aus einem, insbesondere in CMOS-Technologie, ausgebildeten Substrat (1) mit einer integrierten Halbleiterstruktur (ASIC) und einer in Lichteinfallsrichtung vorgeordneten optisch aktiven Dünnschichtstruktur, bestehend aus einer Schicht (9) aus einem transparenten leitfähigen Material und mindestens einer Schicht (6, 7, 8) aus Halbleitermaterial, welche auf einer isolierenden Schicht (4) angeordnet sind, innerhalb der sich Verbindungsmittel (2, 3, 5) zur Kontaktierung der optisch aktiven Dünnschichtstruktur mit der auf dem Substrat angeordneten integrierten Halbleiterstruktur befinden. Zur Lösung der Aufgabe, ein optoelektronisches Bauelement der genannten Art dahingehend weiter zu entwickeln, dass die elektrische Verbindung zwischen der Schicht (9) aus transparentem leitfähigen Material und einem elektrischen Potentialanschluss (15) fertigungstechnisch auf einfache Weise hergestellt werden kann, ist vorgesehen, dass die Schicht aus transparentem leitfähigen Material durch eine zusätzlich auf dem Substrat ausgebildete leitfähige Struktur (10, 11, 12, 13) mit dem außerhalb der Bildelementeanordnung angeordneten Potentialanschluss (15) verbindbar ist.

    HIGH DATA RATE TRANSMISSION IN A MULTI BAND OFDM SYSTEM
    4.
    发明申请
    HIGH DATA RATE TRANSMISSION IN A MULTI BAND OFDM SYSTEM 审中-公开
    多频带OFDM系统中的高数据速率传输

    公开(公告)号:WO2007085583A1

    公开(公告)日:2007-08-02

    申请号:PCT/EP2007/050610

    申请日:2007-01-22

    CPC classification number: H04L5/0007 H04B1/713 H04L5/0042 H04L5/0064 H04L25/14

    Abstract: Method for transmitting information in a multi-band OFDM system, comprising delivering according to a given communication standard an initial data stream (IDS) , splitting (11) said initial data stream into a chosen number of elementary data streams and simultaneously transmitting (12) said elementary data streams according to said communication standard on said communication medium (MD) within different respective sub-bands (SBi) . These sub-bands all blong to the same band group. Proposal based on the MBOA standard.

    Abstract translation: 一种用于在多频带OFDM系统中发送信息的方法,包括根据给定的通信标准递送初始数据流(IDS),将所述初始数据流分解成所选数量的基本数据流,并同时发送(12) 根据所述通信标准在不同的相应子带(SBi)内的所述通信介质(MD)上的所述基本数据流。 这些子带都属于相同的频带组。 基于MBOA标准的提案。

    METHOD AND APPARATUS FOR REDUCING THE INTERFERENCES BETWEEN A WIDE BAND DEVICE AND A NARROW BAND INTERFERER
    5.
    发明申请
    METHOD AND APPARATUS FOR REDUCING THE INTERFERENCES BETWEEN A WIDE BAND DEVICE AND A NARROW BAND INTERFERER 审中-公开
    用于减少宽带设备和窄带干扰器之间的干扰的方法和装置

    公开(公告)号:WO2007003297A1

    公开(公告)日:2007-01-11

    申请号:PCT/EP2006/006127

    申请日:2006-06-26

    Abstract: The method comprises a main interference reduction mode (MIRM) for reducing interferences generated by a wide band device towards a narrow band device. Said method is performed within said wide band device and detecting (40) an emission from and/or a reception performed by said narrow baand device, determining (41) from said detection step a group of at least one sub-carrier having frequencies interfering with the narrow band device determining (42) the bits which correspond to the information carried by said interfering sub-carriers of said group and processing (43) said determined bits such that they are mapped into a reference symbol having an amplitude equal or close to zero.

    Abstract translation: 该方法包括用于减小宽带设备对窄带设备产生的干扰的主干扰减少模式(MIRM)。 所述方法在所述宽带设备内执行,并检测(40)由所述窄带设备执行的发射和/或接收,从所述检测步骤确定具有频率干扰的频率的至少一个子载波组 窄带设备确定(42)对应于由所述组的所述干扰子载波携带的信息的比特,并且处理(43)所确定的比特,使得它们被映射到具有等于或接近零的幅度的参考符号 。

    METHOD AND DEVICE FOR CONTROLLING THE DECODING OF A LDPC ENCODED CODEWORD, IN PARTICULAR FOR DVB-S2 LDPC ENCODED CODEWORDS
    6.
    发明申请
    METHOD AND DEVICE FOR CONTROLLING THE DECODING OF A LDPC ENCODED CODEWORD, IN PARTICULAR FOR DVB-S2 LDPC ENCODED CODEWORDS 审中-公开
    用于控制LDPC编码编码的解码的方法和装置,特别是用于DVB-S2 LDPC编码的编码

    公开(公告)号:WO2006117135A1

    公开(公告)日:2006-11-09

    申请号:PCT/EP2006/003942

    申请日:2006-04-27

    CPC classification number: H03M13/1111 H03M13/1128 H03M13/1165 H03M13/3738

    Abstract: This is a method for controlling the decoding of a LDPC encoded codeword composed of several digital data, said LDPC code being represented by a bipartite graph between check nodes (CN 1 ) and variable nodes (VN i ). Said method compri ses updating messages exchanged iteratively between variable nodes (VN1) and check nodes (CN 1 ). Said method comprises, at each iteration, calculating for each variable node a first sum ( Λ n ) of all the incident messages ( λ i ) received by said variable node and the corresponding digital data ( λ ch ) and calculating a second sum (VNR new ) of all the absolute values of the first sums ( Λ n ), and stopping the decoding process if the second sum (VNR new ) is unchanged or decreases within two successive iterations and if a predetermined threshold condition is satisfied.

    Abstract translation: 这是一种用于控制由几个数字数据组成的LDPC编码码字的解码的方法,所述LDPC码由校验节点(CN1> 1)和可变节点(VN)之间的二分图表示, I )。 所述方法包括更新在可变节点(VN1)和校验节点(CN <1)之间迭代地交换的消息。 所述方法包括:在每次迭代时,为每个可变节点计算由所述可变节点接收的所有事件消息(?> i i i> the the the the the the the the the the the the the the) 相对应的数字数据(ΔTA),并且计算第一和(%)的所有绝对值的第二和(VNR)新的&lt; / SUB&gt; 并且如果在两个连续的迭代中第二个和(VNR新的)不变或减小,并且如果满足预定的阈值条件,则停止解码过程。

    FAST CONVERGENCE LDPC DECODING USING BCJR ALGORITHM AT THE CHECK NODES
    7.
    发明申请
    FAST CONVERGENCE LDPC DECODING USING BCJR ALGORITHM AT THE CHECK NODES 审中-公开
    使用BCJR算法的快速融合LDPC解码在检查NODES

    公开(公告)号:WO2007110436A1

    公开(公告)日:2007-10-04

    申请号:PCT/EP2007/052986

    申请日:2007-03-28

    CPC classification number: H03M13/3905 H03M13/1165 H03M13/1197 H03M13/3972

    Abstract: Method of decoding LDPC codes such as IRA codes used in the DVB-S2 standard, the code graph comprising first variable nodes (systematic), second variable nodes (parity) having a degree two, and check nodes connected to second variable nodes by a zigzag connectivity, the method comprising a) grouping the check nodes into at least one group, the check nodes of each group being connected by variable nodes called internal variable nodes, b) performing for each group (GR j ) the following sub-steps b1) and b2): b1) jointly updating (71) all the check nodes of said group by using an algorithm of the Maximum-A-Posteriori (MAP) type on a two-state trellis, b2) updating (72, 73) all the first variable nodes and all the second variable nodes (PN i-1,i ; PN i,i+1 ) connected to said group except said at least one internal second variable node, c) iteratively repeating step b). When using a plurality of groups, a corresponding plurality of trellis windows are LogMAP decoded without training period since connecting parity nodes are updated according to the sum-product algorithm.

    Abstract translation: 对DVB-S2标准中使用的诸如IRA代码的LDPC码进行解码的方法,包括具有度2的第一可变节点(系统),第二可变节点(奇偶校验)的代码图,以及通过Z字形连接到第二可变节点的校验节点 所述方法包括:a)将所述校验节点分组为至少一个组,每个组的校验节点由被称为内部变量节点的变量节点连接,b)对每个组执行(GR 以下子步骤b1)和b2):b1)通过使用两状态网格上的最大后验(MAP)类型的算法来共同更新(71)所述组的所有校验节点,b2)更新 (72,73)连接到所述组的所有第一可变节点和所有第二可变节点(PN 1,i>,N i,i + 1)除 所述至少一个内部第二可变节点,c)迭代地重复步骤b)。 当使用多个组时,由于连接奇偶校验节点根据和积算法被更新,所以对应的多个网格窗口不进行训练周期的LogMAP解码。

    METHOD AND APPARATUS FOR REDUCING THE INTERFERENCES BETWEEN A WIDE BAND DEVICE AND A NARROW BAND DEVICE INTERFERING WITH SAID WIDE BAND DEVICE
    9.
    发明申请
    METHOD AND APPARATUS FOR REDUCING THE INTERFERENCES BETWEEN A WIDE BAND DEVICE AND A NARROW BAND DEVICE INTERFERING WITH SAID WIDE BAND DEVICE 审中-公开
    用于减少宽带设备与窄带设备干扰的窄带设备之间的干扰的方法和装置

    公开(公告)号:WO2007003298A1

    公开(公告)日:2007-01-11

    申请号:PCT/EP2006/006128

    申请日:2006-06-26

    Abstract: The method comprises an interference deduction mode (ADIRM) for reducing interferences between a wide band device and a narrow band device; said method is performed within said wide band device and includes the steps of detecting (130) an emssion from and/or a reception performed by said narrow band device, determining (131) from said detection step a group of at least one sub-carrier having frequencies interfering with the narrow band devices, frequencies shifting (132) at least a part of frequncy band of said wide band device including said group of at least one interfering sub-carriers with a chosen frequency shift such that at least a part of frequency band of said narrow band device is excluded from said frequency band of said wide band device.

    Abstract translation: 该方法包括用于减少宽带设备和窄带设备之间的干扰的干扰抑制模式(ADIRM); 所述方法在所述宽带设备内执行,并且包括以下步骤:从所述窄带设备执行的检测(130)和/或接收的消息;从所述检测步骤确定(131)一组至少一个子载波 具有干扰窄带设备的频率,使所述宽带设备的至少一部分频率带宽(132)包括具有选定频移的至少一个干扰子载波的所述组,使得频率的至少一部分 所述窄带设备的频带被排除在所述宽带设备的所述频带之外。

    APPARATUS AND METHOD OF ECHO-CANCELLATION
    10.
    发明申请

    公开(公告)号:WO2003098833A3

    公开(公告)日:2003-11-27

    申请号:PCT/BE2003/000088

    申请日:2003-05-19

    Abstract: There is disclosed a multi-carrier transceiver system for use in echo-cancellation. The transceiver system is arranged to generate from input data (1) a multi-carrier transmit signal (u) comprising a plurality of multi-carrier data blocks. The transceiver system also has a multi-carrier signal receiver responsive to an input multi-carrier receive signal (Yi) received from a remote signal transmitter. An echo canceller (2000) is arranged to generate from a pair of multi-carrier data blocks (u) a set of frequency-domain echo parameters (W) for use in generating an echo signal, (Y), to generate the echo signal using the frequency-domain echo parameters (W), and to input the echo signal (Y) to the multi-carrier signal receiver for use in generating an echo-cancelled receive signal (Ei) from the input receive signal (Yi) and the echo signal (Y).

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