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公开(公告)号：MXPA06006649A
公开(公告)日：2006-08-31
申请号：MXPA06006649
申请日：2004-12-07
Applicant: MOTOROLA INC
Inventor： IWAI KYLE K
Abstract: Un detector de actividad de enlace descendente y de probabilidad de platica doble y metodo para un circuito supresor (10) de ecos mejora la estabilidad de un filtro adaptable supresor (300) de ecos y mejora la atenuacion de los datos (388) de enlace ascendente del supresor de post-ecos. El circuito supresor (10) de ecos incluye un generador (30) de datos de actividad de enlace descendente y de probabilidad de platica doble y una etapa (20) de supresion de ecos. El generador (30) de datos de actividad de enlace descendente y de probabilidad de platica doble recibe los datos (40) de enlace ascendente de supresor de pre-ecos y los datos (50) de enlace descendente y en respuesta produce datos (60) de probabilidad de platica doble y datos (70) de actividad de enlace descendente. La etapa (20) de supresion de ecos recibe los datos (50) de enlace descendente, los datos (40) de enlace ascendente de supresion de pre-ecos, los datos (60) de probabilidad de plastica doble y los datos (70) de actividad de enlace descendente, y en respuesta produce datos (80) de enlace ascendente.
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Patent Agency Ranking2.发明专利
公开(公告)号：CA2546530C
公开(公告)日：2009-09-15
申请号：CA2546530
申请日：2004-12-07
Applicant: MOTOROLA INC
Inventor： IWAI KYLE K , PIKET JAMES B , ROKUSEK DANIEL S
Abstract: A downlink activity and double talk probability detector and method for an echo canceler circuit (10) improves the stability of an echo canceler adapti ve filter (300) and improves the attenuation of post-echo canceler uplink data (388). The echo canceler circuit (10) includes a downlink activity and doubl e talk probability data generator (30) and an echo canceler stage (20). The downlink activity and double talk probability data generator (30) receives p re- echo canceler uplink data (40) and downlink data (50) and in response produc es double talk probability data (60) and downlink activity data (70). The echo canceler stage (20) receives the downlink data (50), the pre-echo canceler uplink data (40), the double talk probability data (60) and the downlink activity data (70), and in response produces uplink data (80).
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3.发明专利
公开(公告)号：CA2546530A1
公开(公告)日：2005-07-07
申请号：CA2546530
申请日：2004-12-07
Applicant: MOTOROLA INC
Inventor： PIKET JAMES B , IWAI KYLE K , ROKUSEK DANIEL S
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4.发明申请A DOWNLINK ACTIVITY AND DOUBLE TALK PROBABILITY DETECTOR AND METHOD FOR AN ECHO CANCELER CIRCUIT 审中-公开回声消除电路的下行活动和双重说话概率检测器和方法
公开(公告)号：WO2005060582A3
公开(公告)日：2005-12-01
申请号：PCT/US2004040806
申请日：2004-12-07
Applicant: MOTOROLA INC , PIKET JAMES B , IWAI KYLE K , ROKUSEK DANIEL S
Inventor： PIKET JAMES B , IWAI KYLE K , ROKUSEK DANIEL S
CPC classification number: H04M9/082
Abstract: A downlink activity and double talk probability detector and method for an echo canceler circuit (10) improves the stability of an echo canceler adaptive filter (300) and improves the attenuation of post-echo canceler uplink data (388). The echo canceler circuit (10) includes a downlink activity and double talk probability data generator (30) and an echo canceler stage (20). The downlink activity and double talk probability data generator (30) receives pre-echo canceler uplink data (40) and downlink data (50) and in response produces double talk probability data (60) and downlink activity data (70). The echo canceler stage (20) receives the downlink data (50), the pre-echo canceler uplink data (40), the double talk probability data (60) and the downlink activity data (70), and in response produces uplink data (80).
Abstract translation: 用于回波消除器电路（10）的下行链路活动和双重通话概率检测器和方法改进了回波消除器自适应滤波器（300）的稳定性并且改善了后回波消除器上行链路数据（388）的衰减。 回声消除器电路（10）包括下行链路活动和双向通话概率数据发生器（30）和回声消除器级（20）。 下行链路活动和双向通话概率数据发生器（30）接收预回波消除器上行链路数据（40）和下行链路数据（50），并作为响应产生双向通话概率数据（60）和下行链路活动数据（70）。 回波消除器级（20）接收下行数据（50），前回波消除器上行数据（40），双通话概率数据（60）和下行活动数据（70），并作为响应产生上行数据 80）。
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5.发明申请A REDUCED COMPLEXITY RECURSIVE LEAST SQUARE LATTICE STRUCTURE ADAPTIVE FILTER BY MEANS OF LIMITED RECURSION OF THE BACKWARD AND FORWARD ERROR PREDICTION SQUARES 审中-公开通过有限后退和前向误差预测方法减少复杂递进最小二乘格子结构自适应滤波器
公开(公告)号：WO2007001786A3
公开(公告)日：2009-04-16
申请号：PCT/US2006022286
申请日：2006-06-08
Applicant: MOTOROLA INC , BARRON DAVID L , IWAI KYLE K , PIKET JAMES B
Inventor： BARRON DAVID L , IWAI KYLE K , PIKET JAMES B
IPC: G06F17/20
CPC classification number: H03H21/0014 , H03H2021/0049
Abstract: A method for reducing a computational complexity of an m-stage adaptive filter is provided by updating recursively forward and backward error prediction square terms for a first portion of a length of the adaptive filter, and keeping the updated forward and backward error prediction square terms constant for a second portion of the length of the adaptive filter.
Abstract translation: 通过更新自适应滤波器长度的第一部分的递归正向和反向误差预测平方项，并且保持更新的正向和反向误差预测平方项恒定，来提供用于降低m阶自适应滤波器的计算复杂度的方法 用于自适应滤波器长度的第二部分。
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6.发明公开A DOWNLINK ACTIVITY AND DOUBLE TALK PROBABILITY DETECTOR AND METHOD FOR AN ECHO CANCELER CIRCUIT 审中-公开ABWÄRTSSTRECKENAKTIVITÄTS-和ECHO灭火器电路双向通话概率探测器和方法
公开(公告)号：EP1692845A4
公开(公告)日：2008-08-06
申请号：EP04813166
申请日：2004-12-07
Applicant: MOTOROLA INC
Inventor： PIKET JAMES B , IWAI KYLE K , ROKUSEK DANIEL S
CPC classification number: H04M9/082
Abstract: A downlink activity and double talk probability detector and method for an echo canceler circuit (10) improves the stability of an echo canceler adaptive filter (300) and improves the attenuation of post-echo canceler uplink data (388). The echo canceler circuit (10) includes a downlink activity and double talk probability data generator (30) and an echo canceler stage (20). The downlink activity and double talk probability data generator (30) receives pre-echo canceler uplink data (40) and downlink data (50) and in response produces double talk probability data (60) and downlink activity data (70). The echo canceler stage (20) receives the downlink data (50), the pre-echo canceler uplink data (40), the double talk probability data (60) and the downlink activity data (70), and in response produces uplink data (80).
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