公开(公告)号：US20110200200A1

公开(公告)日：2011-08-18

申请号：US12159110

申请日：2006-12-15

申请人： Itzhak Avayu ,  Uzi Cohen ,  Boaz Or-Shraga

发明人： Itzhak Avayu ,  Uzi Cohen ,  Boaz Or-Shraga

IPC分类号： H04R29/00

CPC分类号： H03G3/32 ,  G10L21/0208 ,  G10L21/0232 ,  H03G5/165

摘要： A telecommunications terminal (100) includes an input audio transducer (111), a receiver (101) for receiving an electrical signal representing a transmitted audio signal, a noise energy estimator (117) for estimating an audio noise energy input received by the input audio transducer and an audio enhancement means (108) for applying to the received electrical signal in a selected audio frequency band a gain which is greater than the gain applied to audio frequencies of the received electrical signal outside the selected band, the gain applied being a function of the audio noise energy input.

摘要翻译： 电信终端（100）包括输入音频换能器（111），用于接收表示发送音频信号的电信号的接收机（101），用于估计由输入音频接收的音频噪声能量输入的噪声能量估计器（117） 换能器和音频增强装置（108），用于向所选择的音频频带中的所接收的电信号施加大于被施加到所选频带外的接收电信号的音频的增益的增益，所应用的增益是功能 的音频噪声能量输入。

公开(公告)号：US07099460B1

公开(公告)日：2006-08-29

申请号：US09670870

申请日：2000-09-27

申请人： Boaz Or Shraga ,  Mark Shahaf ,  Izak Avayu ,  Yishay Ben-Shimol

发明人： Boaz Or Shraga ,  Mark Shahaf ,  Izak Avayu ,  Yishay Ben-Shimol

IPC分类号： H04B3/23

CPC分类号： H04M9/082

摘要： Echo canceling method including the steps of determining an Euclidean norm of an echo-replica signal, determining an Euclidean norm of an input signal, determining a gradient step size, correcting the coefficients of an adaptive filter, deriving an updated echo-replica signal, and determining an updated error signal by subtracting the updated echo-replica signal from the input signal.

摘要翻译： 回波消除方法包括以下步骤：确定回波 - 复制信号的欧几里得范数，确定输入信号的欧几里德范数，确定梯度步长，校正自适应滤波器的系数，导出更新的回波 - 复制信号;以及 通过从输入信号中减去更新的回波复制信号来确定更新的误差信号。

公开(公告)号：US08630427B2

公开(公告)日：2014-01-14

申请号：US12159110

申请日：2006-12-15

申请人： Itzhak Avayu ,  Uzi Cohen ,  Boaz Or-Shraga

发明人： Itzhak Avayu ,  Uzi Cohen ,  Boaz Or-Shraga

IPC分类号： H04B15/00

CPC分类号： H03G3/32 ,  G10L21/0208 ,  G10L21/0232 ,  H03G5/165

摘要： A telecommunications terminal (100) includes an input audio transducer (111), a receiver (101) for receiving an electrical signal representing a transmitted audio signal, a noise energy estimator (117) for estimating an audio noise energy input received by the input audio transducer and an audio enhancement means (108) for applying to the received electrical signal in a selected audio frequency band a gain which is greater than the gain applied to audio frequencies of the received electrical signal outside the selected band, the gain applied being a function of the audio noise energy input.

摘要翻译： 电信终端（100）包括输入音频换能器（111），用于接收表示发送音频信号的电信号的接收机（101），用于估计由输入音频接收的音频噪声能量输入的噪声能量估计器（117） 换能器和音频增强装置（108），用于向所选择的音频频带中的所接收的电信号施加大于被施加到所选频带外的接收电信号的音频的增益的增益，所应用的增益是功能 的音频噪声能量输入。

公开(公告)号：US07945264B2

公开(公告)日：2011-05-17

申请号：US11759684

申请日：2007-06-07

申请人： Imanuel Aminov ,  Inna Kogan ,  Boaz Or-Shraga ,  Menahem Raif

发明人： Imanuel Aminov ,  Inna Kogan ,  Boaz Or-Shraga ,  Menahem Raif

IPC分类号： H04W36/00

CPC分类号： H04W36/36 ,  H04W36/30

摘要： A mobile station (107, 200) for use in a cellular communication system (100) includes a processor (214) operable to determine whether the mobile station should undergo cell re-selection by handover from a first base station (101) to a second base station (102), wherein the determination includes comparing a value of a property (RSSI) of a signal received from the second base station with a value of the same property of a signal received from the first base station and calculating whether the difference between the two values is greater than a pre-determined reference difference (SRH), characterised in that the processor is operable to apply in the difference calculation a reference difference (SRH(0), SRH(1) . . . ) which varies as a function of time during an idle mode of operation of the mobile station. Also disclosed is a system and method incorporating the mobile station.

摘要翻译： 用于蜂窝通信系统（100）的移动台（107,200）包括处理器（214），其可操作以确定移动台是否应经由从第一基站（101）到第二基站（101）的切换进行小区重选 基站（102），其中所述确定包括将从所述第二基站接收的信号的属性（RSSI）的值与从所述第一基站接收的信号具有相同属性的值进行比较，并且计算所述第二基站 所述两个值大于预定参考差（SRH），其特征在于，所述处理器可操作以在差分计算中应用参考差（SRH（0），SRH（1）...） 在移动台的空闲操作模式期间的时间功能。 还公开了结合移动台的系统和方法。

公开(公告)号：US07212841B2

公开(公告)日：2007-05-01

申请号：US10477278

申请日：2002-05-13

申请人： Mark Shahaf ,  Boaz Or-Shraga ,  Izak Avayu

发明人： Mark Shahaf ,  Boaz Or-Shraga ,  Izak Avayu

IPC分类号： H04M1/00

CPC分类号： H04M9/08

摘要： In accordance with a first aspect of the present invention there is provided a telephone apparatus including a transmitter portion and a receiver portion, an input transducer for converting input audio signals into electrical signals, a connectable input link between the input transducer and the transmitter portion to deliver when connected an input electrical signal to the transmitter portion to be transmitted by the transmitter portion, an output transducer for converting an output electrical signal into an audio signal and a connectable output link between the receiver portion and the output transducer for delivering when connected an output signal to the output transducer, optionally an echo cancellation circuitry portion adapted to sample the output signal and produce an echo replica signal, optionally a mixer included in the input link for mixing an echo replica signal produced by the echo cancellation circuit with an input signal produced by the input transducer, and an echo suppression circuitry portion including detector means for producing a first magnitude signal which represents a magnitude property of a first sample of an output signal So in the output link and a second magnitude signal which represents a magnitude property of a second sample of an input electrical signal Si in the input link between the mixer and the transmitter portion, an analyzer, connected to receive inputs comprising the first and second magnitude signals from the detector means, for measuring a relationship between the first and second magnitude signals and for producing a control signal when the relationship exceeds a threshold, wherein the detector means is operable periodically to analyse characteristics of the signal So to estimate the amount of background noise in the signal So and to pass as an input to the analyzer a signal representing the estimated amount of backgroudn noise wherein the threshold above which the analyzer produces an output control signal is set adaptively by the analyzer dependent on the estimated background noise.

公开(公告)号：US20070232302A1

公开(公告)日：2007-10-04

申请号：US11759684

申请日：2007-06-07

申请人： Imanuel Aminov ,  Inna Kogan ,  Boaz Or-Shraga ,  Menahem Raif

发明人： Imanuel Aminov ,  Inna Kogan ,  Boaz Or-Shraga ,  Menahem Raif

IPC分类号： H04Q7/20

CPC分类号： H04W36/36 ,  H04W36/30

摘要： A mobile station (107, 200) for use in a cellular communication system (100) includes a processor (214) operable to determine whether the mobile station should undergo cell re-selection by handover from a first base station (101) to a second base station (102), wherein the determination includes comparing a value of a property (RSSI) of a signal received from the second base station with a value of the same property of a signal received from the first base station and calculating whether the difference between the two values is greater than a pre-determined reference difference (SRH), characterised in that the processor is operable to apply in the difference calculation a reference difference (SRH(0), SRH(1) . . . ) which varies as a function of time during an idle mode of operation of the mobile station. Also disclosed is a system and method incorporating the mobile station.

摘要翻译： 用于蜂窝通信系统（100）的移动台（107,200）包括处理器（214），其可操作以确定移动台是否应经由从第一基站（101）到第二基站（101）的切换进行小区重选 基站（102），其中所述确定包括将从所述第二基站接收的信号的属性（RSSI）的值与从所述第一基站接收的信号具有相同属性的值进行比较，并且计算所述第二基站 所述两个值大于预定参考差（SRH），其特征在于，所述处理器可操作以在差分计算中应用参考差（SRH（0），SRH（1）...） 在移动台的空闲操作模式期间的时间功能。 还公开了结合移动台的系统和方法。