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1. 发明授权

US06498850B1 Multichannel echo canceller with a compander 失效
标题翻译：多通道回波消除器与压缩扩展器
公开(公告)号：US06498850B1
公开(公告)日：2002-12-24
申请号：US09282212
申请日：1999-03-31
申请人： Michael Walker , Hans Jürgen Matt , Armin Mann , Fritz Weinschenk , Holger Söhnle
发明人： Michael Walker , Hans Jürgen Matt , Armin Mann , Fritz Weinschenk , Holger Söhnle
IPC分类号： H04M908
CPC分类号： H04B3/23
摘要： A compander circuit (20) for echo cancellation in telecommunications apparatus with an estimator module (21) for estimating an echo coupling and a delay of a line echo and a characteristic module (23) with an associated multiplier (24) for controlling the short-time output level of zout(k) as a function of the short-time input level of zin(k) is characterized in that at all inputs and outputs of the compander circuit (20), a plurality of N communications channels are applied and outputted, respectively, at an N-fold clock rate as compared with a single communications channel; that all memory units in the compander circuit (20) are designed as multiplexer-buffer-demultiplexer (MBD) units (30); and that a modulo-N counter (26) is provided which controls all MBD units (30) so that in each of the MBD units (30), always the same memory cell (351, 352, 35N) assigned to a particular communications channel is addressed.
摘要翻译：一种用于在具有估计模块（21）的电信设备中用于回波消除的压缩扩展电路（20），用于估计回波耦合和线路回波延迟以及具有相关联的乘法器（24）的特征模块（23）作为zin（k）的短时输入电平的函数的zout（k）的时间输出电平的特征在于，在压缩扩展电路（20）的所有输入和输出处，施加并输出多个N个通信信道，与单个通信信道相比分别为N倍时钟速率; 所述压缩扩展电路（20）中的所有存储器单元被设计为多路复用器 - 缓冲器解多路复用器（MBD）单元（30）; 并且提供了模N计数器（26），其控制所有MBD单元（30），使得在每个MBD单元（30）中，总是相同的存储器单元（351,352,35N）分配给特定通信信道被解决。

2. 发明授权

US06493448B1 Process for echo suppression with adaptive fir filters 失效
标题翻译：具有自适应冷杉滤波器的回波抑制过程
公开(公告)号：US06493448B1
公开(公告)日：2002-12-10
申请号：US09231794
申请日：1999-01-15
申请人： Armin Mann , Hans Jürgen Matt , Michael Walker
发明人： Armin Mann , Hans Jürgen Matt , Michael Walker
IPC分类号： H04M908
CPC分类号： H04B3/23
摘要： A process for suppressing total echoes comprising a plurality of partial echoes in telecommunications (TK) equipment such as terminals, transmission systems, or switching equipment by means of adaptive FIR (=Finite Impulse Response) filters that simulate the total echo and subtract it from the echo-affected useful signal transmitted to the respective TK equipment, whereby n partial FIR filters are provided, which respectively simulate a partial echo, is characterized in that m parallel, mutually independent TK channels are provided with an echo suppression function and that for this purpose a variable sub-quantity of the partial FIR filters is assigned to a TK channel to be operated, respectively, as required depending on the number of partial echoes and the size of the occurring delay times between signal and echo. This permits effective echo suppression without significant memory space and computational effort even for a large number of m parallel, mutually independent TK channels, such as must be processed in switching equipment or gateways.
摘要翻译：一种用于通过自适应FIR（=有限脉冲响应）滤波器抑制电信（TK）设备中诸如终端，传输系统或交换设备的多个部分回波的总回波的过程，该自适应FIR（=有限脉冲响应）滤波器模拟总回波并将其从回波影响的有用信号被发送到相应的TK设备，由此提供分别模拟部分回波的n个部分FIR滤波器，其特征在于m个并行的，相互独立的TK信道被提供回波抑制功能，为此目的根据需要，根据部分回波的数量和信号和回波之间出现的延迟时间的大小，分配将部分FIR滤波器的可变子量分配给要被操作的TK信道。这允许有效的回波抑制，即使对于大量的并行，相互独立的TK信道也不会有显着的存储空间和计算量，例如必须在交换设备或网关中处理。

3. 发明授权

US06483915B1 Equipment and processes for echo suppression with adaptive fir filters 失效
标题翻译：用自适应冷杉滤波器进行回波抑制的设备和过程
公开(公告)号：US06483915B1
公开(公告)日：2002-11-19
申请号：US09231793
申请日：1999-01-15
申请人： Armin Mann , Hans Jürgen Matt , Michael Walker
发明人： Armin Mann , Hans Jürgen Matt , Michael Walker
IPC分类号： H04M908
CPC分类号： H04B3/23
摘要： An equipment (1) for the suppression of whole echoes composed of several partial echoes in telecommunications (TC) equipment, such as end devices, transmission systems or exchange equipment, with the help of adaptive FIR (=Finite Impulse Response) filters, which reproduce the whole echo and extract it from the echo-laden useful signal and which has been transferred to the respective TC equipment, in which the homogeneous FIR filters or partial filters (10), each of which are able to reproduce a whole echo or partial echo, are implemented on a single ASIC (=Application Specific Integrated Circuit) (9) for the m parallel and independent TC channels n to be served; and in which the whole echoes or partial echoes to be reproduced can be calculated in real time in the ASIC (9) and in which a digital signal processor (4) is designed to control the ASIC (9) and set the filter settings, especially after the coefficient required to reproduce the echo is calculated on the ASIC (9). This calculation is carried out in the digital signal processor (4). This makes it possible to effectively suppress echoes in a large number of m parallel and independent TC channels, as they must be processed in exchanges and network hybrids, without requiring a large amount of memory space and computational effort.
摘要翻译：在自适应FIR（=有限脉冲响应）滤波器的帮助下，用于抑制电信（TC）设备中的几个部分回波（例如终端设备，传输系统或交换设备）的整个回波的设备（1）整个回波并将其从有回波的有用信号中提取出来，并将其传送到相应的TC设备，其中均匀的FIR滤波器或部分滤波器（10）能够再现整个回波或部分回波在单个ASIC（=专用集成电路）（9）上实现，用于要并行和独立的TC信道n被服务; 并且其中可以在ASIC（9）中实时地计算整个回波或部分回波以被再现，并且其中数字信号处理器（4）被设计为控制ASIC（9）并设置滤波器设置，特别是在ASIC（9）上计算再现回波所需的系数之后。该计算在数字信号处理器（4）中进行。这使得可以有效地抑制大量m个并行和独立的TC信道中的回波，因为它们必须在交换和网络混合中被处理，而不需要大量的存储空间和计算量。

4. 发明授权

US06320918B1 Procedure for reducing interference in the transmission of an electrical communication signal 失效
标题翻译：降低电通信信号传输干扰的步骤
公开(公告)号：US06320918B1
公开(公告)日：2001-11-20
申请号：US09133830
申请日：1998-08-13
申请人： Michael Walker , Hans Jürgen Matt , Michael Trompf
发明人： Michael Walker , Hans Jürgen Matt , Michael Trompf
IPC分类号： H03D104
CPC分类号： G10L21/0208 , H04L25/03019
摘要： Through crosstalk on lines, interference from current transmission lines or line echoes, the useable signal is superimposed by different interference signals. The task is to find a procedure for reducing interference which, compared to the current state of the art, can be achieved with a smaller amount of computing input and is suited to both the reduction of quasi steady-state and non-steady interference. In this, the interference of a received signal is classified with regards to characteristics in the time range as a click, crackle, rumble or noise interference signal. The time range in which the interference occurs is marked. Depending on the interference type, interference blanking and/or an interpolation of the useable signal and/or a subtraction of the interference signal from the useable signal and/or a regeneration of the useable signal is carried out.
摘要翻译：通过线路上的串扰，来自当前传输线路或线路回波的干扰，可用信号由不同的干扰信号叠加。任务是找到一种减少干扰的过程，与目前的现有技术相比，可以用更少量的计算输入来实现干扰，并且适用于准稳态和非稳态干扰的降低。在此，接收信号的干扰在时间范围内被分类为点击，裂纹，隆隆声或噪声干扰信号。发生干扰的时间范围被标记。根据干扰类型，执行干扰消隐和/或可用信号的内插和/或可用信号的干扰信号的减法和/或可用信号的再生。

5. 发明授权

US06269156B1 Method, server and communications node for setting up fee-optimized communications connections 失效
标题翻译：方法，服务器和通信节点，用于设置费用优化的通信连接
公开(公告)号：US06269156B1
公开(公告)日：2001-07-31
申请号：US09335179
申请日：1999-06-17
申请人： Hans Jürgen Matt , Peter Sauer , Rolf Kotthaus
发明人： Hans Jürgen Matt , Peter Sauer , Rolf Kotthaus
IPC分类号： H04M1500
CPC分类号： H04M15/8044 , H04M15/00 , H04M15/30 , H04M2215/2026 , H04M2215/32 , H04M2215/42 , H04M2215/745 , H04W4/24
摘要： A method for setting up fee-optimized communications connections by a communications device (EX1), a server for setting up fee-optimized communications connections and a communications node (EX1) therefor. The communications device provides a database, which stores the fees accruing during the use of the communications paths (CON2A, CON2B) that can be used for setting up a communications connection. A first subscriber (SUB1) then logs on a call request to a second subscriber (SUB2) at the communications device. The communications device then determines a communications path (CON2A) between the first and second subscriber according to the overall lowest fees and sets up a communications connection between the first and second subscriber on said communications path. For this purpose, it is proposed that the communications device determines the fees accrued by said communications connection and charges them to a subscriber.
摘要翻译：一种用于通过通信设备（EX1）设置费用优化的通信连接的方法，用于设置费用优化的通信连接的服务器和用于其的通信节点（EX1）。通信设备提供数据库，其存储在使用可用于建立通信连接的通信路径（CON2A，CON2B）期间产生的费用。第一用户（SUB1）然后在通信设备处登录到第二用户（SUB2）的呼叫请求。通信设备然后根据总体最低费用确定第一和第二用户之间的通信路径（CON2A），并建立所述通信路径上的第一和第二用户之间的通信连接。为此，建议通信设备确定由所述通信连接累积的费用并向用户收费。

6. 发明授权

US06581153B1 Integrated circuit 有权
标题翻译：集成电路
公开(公告)号：US06581153B1
公开(公告)日：2003-06-17
申请号：US09292959
申请日：1999-04-16
申请人： Hans Jürgen Matt , Dieter Kopp , Michael Trompf , Stefan Späth
发明人： Hans Jürgen Matt , Dieter Kopp , Michael Trompf , Stefan Späth
IPC分类号： G06F1516
CPC分类号： G06F15/7857
摘要： An integrated circuit contains a processor (DSP) for the processing of data, at least two modules (M1, M2, M3) for the processing of data packets selected by the processor according to differing operation regulations, and a router (ROUTER) which is connected to all modules (M1, M2, M3) and to the processor (DSP) for the purpose of controlling the data traffic between the processor (DSP) and the modules (M1, M2, M3). The router is suited to receive from the processor (DSP) data packets and associated instructions, to execute special operations for individual data packets which can be executed by the modules (M1, M2, M3) in specified sequence, to coordinate autonomously the control of the sequences, to transfer the data packets to the appropriate modules (M1, M2, M3), and to transfer the data packets after they have been processed according to the specified instructions to the processor (DSP).
摘要翻译：集成电路包含用于处理数据的处理器（DSP），至少两个模块（M1，M2，M3），用于根据不同的操作规则处理由处理器选择的数据包;以及路由器（ROUTER）连接到所有模块（M1，M2，M3）和处理器（DSP），以便控制处理器（DSP）和模块（M1，M2，M3）之间的数据流量。路由器适合于从处理器（DSP）数据包和相关联的指令接收，以便按照规定的顺序对模块（M1，M2，M3）执行的各个数据包执行特殊操作，以自主地协调控制将数据分组传送到适当的模块（M1，M2，M3）的序列，并且在数据分组根据指定的指令被处理之后将数据分组传送到处理器（DSP）。

7. 发明授权

US06272181B1 Method and device for the aggregation of signals from sampling values 失效
标题翻译：用于从采样值聚合信号的方法和装置
公开(公告)号：US06272181B1
公开(公告)日：2001-08-07
申请号：US09048544
申请日：1998-03-26
申请人： Hans Jürgen Matt
发明人： Hans Jürgen Matt
IPC分类号： H03M112
CPC分类号： G06J1/00
摘要： A method of forming an aggregation of N>1 band-limited time signals, each with a bandwidth of ≦B, which are present as analog and/or digital sampling values, with a respective sampling frequency of fA>2B, is characterized in that the sampling values of all N time signals are offset in time and superimposed on each other, and are jointly input to a low-pass filter (12) with a bandwidth of B′>B, and that a composite signal is tapped off from the output of the low-pass filter (12). This allows the aggregation to be performed in a considerably shorter calculation time, a number of slow and expensive aggregation elements can possibly be saved, and the damping of the signals during processing can be minimized, as well as the corresponding loss of information.
摘要翻译：以相应的采样频率fA> 2B形成作为模拟和/或数字采样值存在的具有<= B的带宽的N> 1个带限时间信号的聚合的方法的特征在于所有N个时间信号的采样值在时间上偏移并且彼此叠加，并且被共同输入到具有B'> B带宽的低通滤波器（12），并且复合信号从低通滤波器（12）的输出。这允许在相当短的计算时间内执行聚合，可以节省多个缓慢且昂贵的聚合元素，并且可以最小化处理期间的信号阻尼以及相应的信息丢失。

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