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1. 发明授权

US07065335B2 Automatic gain control circuit and an RF receiver and method using such a circuit 有权
标题翻译：自动增益控制电路和使用这种电路的RF接收机和方法
公开(公告)号：US07065335B2
公开(公告)日：2006-06-20
申请号：US10490295
申请日：2002-06-03
申请人： Moshe Ben-Ayun , Mark Rozental , Roman Pasternak , Izak Avayu
发明人： Moshe Ben-Ayun , Mark Rozental , Roman Pasternak , Izak Avayu
IPC分类号： H04B1/06
CPC分类号： H03G3/3078 , H03G3/3052
摘要： An automatic gain control (AGC) circuit including: a forward transmission path (214) having applied at its input an input RF signal and to provide at its output an output signal; a variable gain AGC amplifier (210) in the forward transmission path for processing the input RF signal, which amplifier has a control input 240 and is responsive to a control signal applied at its control input to vary its gain; a feedback loop (220 to 240), coupled from the output of the forward transmission path and to the control input of the AGC amplifier; an integrator (230, 232), coupled to the control input of the amplifier; a voltage source (234), coupled to the integrator and to the control input of the amplifier; and a further variable gain device (215) for varying the gain or attenuation of a signal applied to the control input of the AGC amplifier.
摘要翻译：一种自动增益控制（AGC）电路，包括：正向传输路径（214），其在其输入处施加了输入RF信号，并在其输出端提供输出信号; 用于处理输入RF信号的正向传输路径中的可变增益AGC放大器（210），该放大器具有控制输入240，并且响应于在其控制输入处施加的控制信号来改变其增益; 从前向传输路径的输出和AGC放大器的控制输入耦合的反馈环路（220至240）; 耦合到放大器的控制输入的积分器（230,232）; 耦合到积分器和放大器的控制输入的电压源（234）; 以及用于改变施加到AGC放大器的控制输入的信号的增益或衰减的另一可变增益器件（215）。

2. 发明申请

US20050003783A1 Automatic gain control circuit and an rf receiver and method using such a circuit 有权
标题翻译：自动增益控制电路和rf接收机及使用这种电路的方法
公开(公告)号：US20050003783A1
公开(公告)日：2005-01-06
申请号：US10490295
申请日：2002-06-03
申请人： Moshe Ben-Ayun , Mark Rozental , Roman Pasternak , Izak Avayu
发明人： Moshe Ben-Ayun , Mark Rozental , Roman Pasternak , Izak Avayu
IPC分类号： H03G3/20 , H03G3/30 , H04B1/06 , H04B7/00
CPC分类号： H03G3/3078 , H03G3/3052
摘要： An automatic gain control (AGC) circuit including: a forward transmission path (214) having applied at its input an input RF signal and to provide at its output an output signal; a variable gain AGC amplifier (210) in the forward transmission path for processing the input RF signal, which amplifier has a control input 240 and is responsive to a control signal applied at its control input to vary its gain; a feedback loop (220 to 240), coupled from the output of the forward transmission path and to the control input of the AGC amplifier; an integrator (230, 232), coupled to the control input of the amplifier; a voltage source (234), coupled to the integrator and to the control input of the amplifiers; and a further variable gain device (215) for varying the gain or attenuation of a signal applied to the control input of the AGC amplifier.
摘要翻译：一种自动增益控制（AGC）电路，包括：正向传输路径（214），其在其输入处施加了输入RF信号，并在其输出端提供输出信号; 用于处理输入RF信号的正向传输路径中的可变增益AGC放大器（210），该放大器具有控制输入240，并且响应于在其控制输入处施加的控制信号来改变其增益; 从前向传输路径的输出和AGC放大器的控制输入耦合的反馈环路（220至240）; 耦合到放大器的控制输入的积分器（230,232）; 耦合到积分器和放大器的控制输入的电压源（234）; 以及用于改变施加到AGC放大器的控制输入的信号的增益或衰减的另一可变增益器件（215）。

3. 发明授权

US07502599B2 Cartesian loop transmitter and method of adjusting an output level of such transmitter 有权
标题翻译：笛卡尔回路发射机和调节这种发射机的输出电平的方法
公开(公告)号：US07502599B2
公开(公告)日：2009-03-10
申请号：US10563466
申请日：2004-05-20
申请人： Moshe Ben-Ayun , Izak Avayu , Mark Rozental
发明人： Moshe Ben-Ayun , Izak Avayu , Mark Rozental
IPC分类号： H01Q11/12
CPC分类号： H03F3/24 , H03F1/32 , H03F1/34 , H03F2200/336 , H03F2200/451 , H03F2200/57
摘要： A Cartesian loop transmitter having isolator eliminator circuitry is presented. The isolator eliminator circuitry includes a set of low pass and wide band pass as well as narrow band pass filters for each of I- and Q-channels, root mean square detectors and dividers connected to a means for comparing. Signals from the means for comparing are received by a microprocessor which controls attenuation setting. The output level of the transmitter is adjusted by generating a small signal measuring an on-channel signal level and a small signal level and then calculating a ratio of the small signal to the on-channel signal. The attenuation setting is increased if the ratio exceeds a defined threshold.
摘要翻译：提出了一种具有隔离器消除器电路的笛卡尔回路变送器。隔离器消除器电路包括一组低通和宽带通以及用于I通道和Q通道中的每一个的窄带通滤波器，连接到用于比较的装置的均方根检测器和分频器。来自用于比较的装置的信号由控制衰减设置的微处理器接收。通过产生测量通道信号电平和小信号电平的小信号，然后计算小信号与通道信号的比率来调节发射机的输出电平。如果比率超过定义的阈值，衰减设置就会增加。

4. 发明申请

US20070184789A1 Cartesian loop transmitter and method of adjusting an output level of such transmitter 有权
标题翻译：笛卡尔回路发射机和调节这种发射机的输出电平的方法
公开(公告)号：US20070184789A1
公开(公告)日：2007-08-09
申请号：US10563466
申请日：2004-05-20
申请人： Moshe Ben-Ayun , Izak Avayu , Mark Rozental
发明人： Moshe Ben-Ayun , Izak Avayu , Mark Rozental
IPC分类号： H01Q11/12 , H04B1/04
CPC分类号： H03F3/24 , H03F1/32 , H03F1/34 , H03F2200/336 , H03F2200/451 , H03F2200/57
摘要： In accordance with the present invention there is those provided a Cartesian loop transmitter having an isolator eliminator circuitry comprising a set of low pass and wide band pass as well as narrow band pass filters for each of I- and Q-channels, root mean square detectors and dividers connected to a means for comparing. Signals from said means for comparing are received by a microprocessor which controls attenuation setting. There is also provided a method of adjusting an output level of such transmitter. Said method comprises the step of generating a small signal measuring an on-channel signal level and said small signal level and then calculating a first ratio of said small signal to said on-channel signal. If said first ratio exceeds a defined threshold said attenuation setting is increased.
摘要翻译：根据本发明，提供了一种笛卡尔回路发射器，其具有包括一组低通和宽带通的隔离器消除器电路以及用于I和Q通道中的每一个的窄带通滤波器，均方根检测器和分隔线连接到一个比较的手段。来自所述用于比较的装置的信号由控制衰减设置的微处理器接收。还提供了一种调节这种发射机的输出电平的方法。所述方法包括产生测量通道信号电平和所述小信号电平的小信号，然后计算所述小信号与所述同信道信号的第一比率的步骤。如果所述第一比率超过限定的阈值，则所述衰减设置增加。

5. 发明授权

US07212841B2 Telephone apparatus and a communication method using such apparatus 失效
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.

6. 发明申请

US20080118091A1 ALERTING SYSTEM FOR A COMMUNICATION DEVICE 有权
标题翻译：通讯设备报警系统
公开(公告)号：US20080118091A1
公开(公告)日：2008-05-22
申请号：US11560683
申请日：2006-11-16
申请人： Salomon Serfaty , Izak Avayu , Eyal Brami , Alexander Shmoukler
发明人： Salomon Serfaty , Izak Avayu , Eyal Brami , Alexander Shmoukler
IPC分类号： H04R25/00 , H04R1/00
CPC分类号： H04M1/03 , H04M1/6041
摘要： An alerting system (202) for a communication device (100) is provided. The alerting system is designed to operate in a plurality of operating modes. The alerting system includes a transducer (204) and an electromechanical switch (106). The transducer transforms electrical impulses into vibrations. The electromechanical switch couples the transducer to a first component (206) of the communication device in a first operating mode. Further, the electromechanical switch couples the transducers to a second component (208) of the communication device in a second operating mode.
摘要翻译：提供了一种用于通信设备（100）的警报系统（202）。警报系统被设计为以多种操作模式操作。警报系统包括换能器（204）和机电开关（106）。传感器将电脉冲转换成振动。机电开关以第一操作模式将换能器耦合到通信装置的第一部件（206）。此外，机电开关在第二操作模式中将换能器耦合到通信装置的第二部件（208）。

7. 发明授权

US06420986B1 Digital speech processing system 有权
标题翻译：数字语音处理系统
公开(公告)号：US06420986B1
公开(公告)日：2002-07-16
申请号：US09630755
申请日：2000-08-02
申请人： Mark Shahaf , Izak Avayu , Aviad Cohen
发明人： Mark Shahaf , Izak Avayu , Aviad Cohen
IPC分类号： H03M162
CPC分类号： H03M1/183
摘要： In a speech processing system (10) characterized by a finite range of audio levels, the speech processing system (10) receiving an incoming audio signal, the speech processing system amplifying (12) the incoming audio signal by an audio gain factor, the speech processing system (10) representing the amplified audio signal by the finite range of audio levels, a method for adjusting the audio gain factor, including the steps of: decreasing the audio gain factor when detecting clipping of the amplified audio signal, maintaining the audio gain factor for a hold time period, and increasing the gain factor when detecting that the result of amplification of the incoming sound levels by the audio gain factor, is lower than the highest level of the finite range of audio levels.
摘要翻译：在以音频电平有限范围为特征的语音处理系统（10）中，语音处理系统（10）接收输入音频信号，语音处理系统通过音频增益因子放大（12）输入音频信号，语音处理系统（10），其通过音频电平的有限范围表示放大的音频信号，一种用于调整音频增益因子的方法，包括以下步骤：当检测到放大的音频信号的限幅时，降低音频增益因子，保持音频增益并且当检测到音频增益因子对输入声音电平的放大结果的结果低于音频电平的有限范围的最高电平时，增加增益因子。

8. 发明授权

US07605686B2 Alerting system for a communication device 有权
标题翻译：通讯设备的告警系统
公开(公告)号：US07605686B2
公开(公告)日：2009-10-20
申请号：US11560683
申请日：2006-11-16
申请人： Salomon Serfaty , Izak Avayu , Eyal Brami , Alexander Shmoukler
发明人： Salomon Serfaty , Izak Avayu , Eyal Brami , Alexander Shmoukler
IPC分类号： G08B3/10
CPC分类号： H04M1/03 , H04M1/6041
摘要： An alerting system (202) for a communication device (100) is provided. The alerting system is designed to operate in a plurality of operating modes. The alerting system includes a transducer (204) and an electromechanical switch (106). The transducer transforms electrical impulses into vibrations. The electromechanical switch couples the transducer to a first component (206) of the communication device in a first operating mode. Further, the electromechanical switch couples the transducers to a second component (208) of the communication device in a second operating mode.
摘要翻译：提供了一种用于通信设备（100）的警报系统（202）。警报系统被设计为以多种操作模式操作。警报系统包括换能器（204）和机电开关（106）。传感器将电脉冲转换成振动。机电开关以第一操作模式将换能器耦合到通信装置的第一部件（206）。此外，机电开关在第二操作模式中将换能器耦合到通信装置的第二部件（208）。

9. 发明授权

US07099460B1 Echo suppression and echo cancellation 有权
标题翻译：回声抑制和回声消除
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。

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