公开(公告)号：US5283813A

公开(公告)日：1994-02-01

申请号：US834092

申请日：1992-02-12

申请人： Ofir Shalvi ,  Ehud Weinstein

发明人： Ofir Shalvi ,  Ehud Weinstein

IPC分类号： H04B3/14 ,  G06F17/10 ,  G06F17/15 ,  G06T5/20 ,  H03H15/00 ,  H03H17/00 ,  H03H21/00 ,  H04B3/23 ,  H04L25/03 ,  H03H7/30

CPC分类号： H04L25/0305 ,  H04L2025/03662

摘要： A method and apparatus for controlling an equalizer receiving the output of an unknown system in order to produce a desired response for recovering the input to the system are characterized by iteratively adjusting the equalizer such that the unknown system combined with the equalizer behaves essentially as a linear system whose (t,n) taps, for some combinations of t and n, are iteratively adjusted according to the following rule: ##EQU1## where s.sub.t,n denotes the (t,n) tap before the iteration, s'.sub.t,n denotes the (t,n) tap after the iteration, I is a preselected integer greater then or equal to one, .alpha..sub.i i=1,2 . . . I are preselected scalars that may vary from iteration to iteration, and p.sub.i, q.sub.i i=1,2, . . . I are preselected non-negative integers such that p.sub.i +q.sub.i .gtoreq.2.

摘要翻译： 用于控制接收未知系统的输出以便产生用于恢复到系统的输入的期望响应的均衡器的方法和装置的特征在于迭代地调整均衡器，使得与均衡器组合的未知系统基本上表现为线性 （t，n）抽头，对于t和n的某些组合，根据以下规则进行迭代调整：（*化学结构*）其中st，n表示迭代​​前的（t，n）抽头，s' t，n表示迭代​​后的（t，n）抽头，I是大于等于1的预选整数，（α）ii = 1,2。 。 。 我是可以从迭代到迭代的预选标量，pi，qi i = 1,2。 。 。 我是预选的非负整数，使得pi + qi> = 2。

公开(公告)号：US5539832A

公开(公告)日：1996-07-23

申请号：US43089

申请日：1993-04-05

申请人： Ehud Weinstein ,  Daniel Yellin

发明人： Ehud Weinstein ,  Daniel Yellin

IPC分类号： H04B1/10 ,  G06K9/62 ,  H03H21/00 ,  H04R3/00 ,  H04B15/00

CPC分类号： G06K9/6243 ,  H03H21/0029 ,  H03H2021/0034 ,  H04R3/005

摘要： A signal processing system includes a plurality of detectors for detecting signals, each detector receiving signals from plural sources; and a processor for receiving the detected signals and producing a reconstruction filter for filtering the detected signals to produce reconstructed source signals in which each source signal is reconstructed without interference from the other source signals. The reconstruction filter is produced such that cross-polyspectra of the reconstructed signals are forced to approach zero.

摘要翻译： 信号处理系统包括多个用于检测信号的检测器，每个检测器接收来自多个信号源的信号; 以及处理器，用于接收所检测的信号并产生用于对所检测的信号进行滤波以产生重构的源信号的重建滤波器，其中每个源信号被重构而不受其它源信号的干扰。 产生重建滤波器，使得重构信号的交叉多谱线被迫接近零。

公开(公告)号：US5208786A

公开(公告)日：1993-05-04

申请号：US750917

申请日：1991-08-28

申请人： Ehud Weinstein ,  Meir Feder ,  Alan V. Oppenheim

发明人： Ehud Weinstein ,  Meir Feder ,  Alan V. Oppenheim

IPC分类号： G06K9/62 ,  G10L21/02 ,  H04R3/00

CPC分类号： G06K9/6243 ,  G10L21/0272 ,  H03H2021/0034 ,  H04R3/005 ,  Y10S367/901

摘要： A system separates unknown signals which have been combined together through unknown linear filters and for which observations at multiple sensors are made. In a two channel circuit with two inputs and two sensors, the reconstructed source signals are assumed to be decorrelated such that the cross-correlation between the reconstructed source signals is near zero. The transfer functions which represent the crosstalk processes are estimated. The output signals are detected and the transfer functions are recursively solved. A reconstruction filter is used to recover the original input signals.

摘要翻译： 系统通过未知的线性滤波器分离已经组合在一起的未知信号，并且在多个传感器处进行观测。 在具有两个输入和两个传感器的双通道电路中，假设重建的源信号是去相关的，使得重构的源信号之间的互相关接近零。 估计表示串扰过程的传递函数。 检测输出信号，递归地解决传递函数。 重构滤波器用于恢复原始输入信号。

公开(公告)号：US5293425A

公开(公告)日：1994-03-08

申请号：US802121

申请日：1991-12-03

申请人： Alan V. Oppenheim ,  Ehud Weinstein ,  Kambiz C. Zangi ,  Meir Feder

发明人： Alan V. Oppenheim ,  Ehud Weinstein ,  Kambiz C. Zangi ,  Meir Feder

IPC分类号： G10K11/178 ,  H03H21/00 ,  G10K11/16

CPC分类号： G10K11/1782 ,  H03H21/0012 ,  G10K2210/1281 ,  G10K2210/3011 ,  G10K2210/30232 ,  G10K2210/3028 ,  G10K2210/3055

摘要： A noise reducing system includes an input transducer that energizes an adaptive filter. The adaptive filter energizes an output transducer that creates a noise reducing field at the input transducer.

摘要翻译： 降噪系统包括为自适应滤波器通电的输入换能器。 自适应滤波器激励输出变换器，在输入传感器处产生降噪场。