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    • 2. 发明申请
    • A DOWNLINK ACTIVITY AND DOUBLE TALK PROBABILITY DETECTOR AND METHOD FOR AN ECHO CANCELER CIRCUIT
    • ECHO取消电路的DOWNLINK活动和双TURK概率检测器和方法
    • WO2005060582A2
    • 2005-07-07
    • PCT/US2004/040806
    • 2004-12-07
    • MOTOROLA, INC.PIKET, James, B.IWAI, Kyle, K.ROKUSEK, Daniel, S.
    • PIKET, James, B.IWAI, Kyle, K.ROKUSEK, Daniel, S.
    • H04M9/08
    • H04M9/082
    • 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).
    • 一种用于回波消除器电路(10)的下行链路活动和双通话概率检测器和方法提高了回波消除器自适应滤波器(300)的稳定性,并且改善了回波后消除器上行链路数据(388)的衰减。 回波消除器电路(10)包括下行链路活动和双向通话概率数据发生器(30)和回波消除器级(20)。 下行链路活动和双向通话概率数据生成器(30)接收前回波消除器上行链路数据(40)和下行链路数据(50),并且作为响应产生双通话概率数据(60)和下行链路活动数据(70)。 回波消除器级(20)接收下行链路数据(50),前回波消除器上行链路数据(40),双方通话概率数据(60)和下行链路活动数据(70),并且作为响应产生上行链路数据 80)。
    • 4. 发明申请
    • A DOWNLINK ACTIVITY AND DOUBLE TALK PROBABILITY DETECTOR AND METHOD FOR AN ECHO CANCELER CIRCUIT
    • 回声消除电路的下行活动和双重说话概率检测器和方法
    • WO2005060582A3
    • 2005-12-01
    • PCT/US2004040806
    • 2004-12-07
    • MOTOROLA INCPIKET JAMES BIWAI KYLE KROKUSEK DANIEL S
    • PIKET JAMES BIWAI KYLE KROKUSEK DANIEL S
    • H04M9/08H04M1/00
    • H04M9/082
    • 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).
    • 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)。