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    • 6. 发明申请
    • WIRELESS COMMUNICATION TERMINALS AND METHODS USING ACOUSTIC RANGING SYNCHRONIZED TO RF COMMUNICATION SIGNALS
    • 无线通信终端和使用与射频通信信号同步的声学范围的方法
    • US20090233551A1
    • 2009-09-17
    • US12047926
    • 2008-03-13
    • Jacobus HaartsenHenrik Sven Bengtsson
    • Jacobus HaartsenHenrik Sven Bengtsson
    • H04B7/19
    • H04L7/0008G01S5/00G01S11/16H04B1/3805
    • Wireless communication terminals and methods are disclosed that determine acoustic ranging synchronized to RF communication signals. A communication terminal can include a RF transceiver, a microphone, and a controller. The controller synchronizes a clock in response to known timing characteristics of received RF communication signals. The controller determines an acoustic signal generation time relative to the RF communication signal synchronized clock at which the other communication terminal will generate an acoustic signal. The controller determines an acoustic signal receipt time relative to the RF signal synchronized clock when the acoustic signal from the other communication terminal is detected in the microphone signal. The controller further determines a propagation time of the acoustic signal from the other communication terminal to the microphone based on a difference between the acoustic signal generation time and the acoustic signal receipt time, and determines a range to the other communication terminal in response to the propagation time of the acoustic signal.
    • 公开了确定与RF通信信号同步的声学测距的无线通信终端和方法。 通信终端可以包括RF收发器,麦克风和控制器。 控制器响应于接收的RF通信信号的已知定时特性来同步时钟。 控制器确定相对于另一通信终端将产生声信号的RF通信信号同步时钟的声信号产生时间。 当在麦克风信号中检测到来自另一通信终端的声信号时,控制器确定相对于RF信号同步时钟的声信号接收时间。 控制器还基于声信号产生时间和声信号接收时间之间的差,确定来自另一个通信终端的声信号的传播时间,并且响应于传播确定到另一个通信终端的范围 声信号的时间。
    • 7. 发明申请
    • ELECTRONIC DEVICES AND METHODS THAT ADAPT FILTERING OF A MICROPHONE SIGNAL RESPONSIVE TO RECOGNITION OF A TARGETED SPEAKER'S VOICE
    • 用于识别麦克风信号的电子设备和方法响应一个有针对性的扬声器的声音
    • US20090216529A1
    • 2009-08-27
    • US12038118
    • 2008-02-27
    • Henrik Sven Bengtsson
    • Henrik Sven Bengtsson
    • G10L15/20
    • G10L21/02G10L15/06G10L17/00
    • Electronic devices and methods are disclosed that adaptively filter a microphone signal responsive to recognition of a targeted speaker's voice. An electronic device can include a microphone, a speaker characterization circuit, an adaptive sound filter circuit, and a speaker recognition circuit. The speaker characterization circuit operates in a training mode to learn characteristics of the targeted speaker's voice component in the microphone signal, and to store the learned characteristics. The adaptive sound filter circuit adaptively filters the microphone signal responsive to a control signal. The speaker recognition circuit uses the learned characteristics to recognize the presence of the targeted speaker's voice in the microphone signal and to regulate the control signal to cause the adaptive sound filter circuit to adapt the filtering to increase the targeted speaker's voice component of the microphone signal relative to other components.
    • 公开了响应于对目标说话者的声音的识别自适应地过滤麦克风信号的电子设备和方法。 电子设备可以包括麦克风,扬声器表征电路,自适应声音滤波器电路和扬声器识别电路。 扬声器表征电路在训练模式下操作以学习麦克风信号中的目标扬声器的语音分量的特征,并且存储所学习的特征。 自适应声音滤波器电路响应于控制信号自适应地过滤麦克风信号。 扬声器识别电路使用所学习的特征来识别麦克风信号中目标扬声器声音的存在并且调节控制信号以使自适应声音滤波器电路适应滤波以增加麦克风信号相对的目标说话者的语音分量 到其他组件。
    • 9. 发明授权
    • Electronic devices and methods that adapt filtering of a microphone signal responsive to recognition of a targeted speaker's voice
    • 响应于对目标扬声器的声音的识别,适应麦克风信号滤波的电子设备和方法
    • US07974841B2
    • 2011-07-05
    • US12038118
    • 2008-02-27
    • Henrik Sven Bengtsson
    • Henrik Sven Bengtsson
    • G10L15/20
    • G10L21/02G10L15/06G10L17/00
    • Electronic devices and methods are disclosed that adaptively filter a microphone signal responsive to recognition of a targeted speaker's voice. An electronic device can include a microphone, a speaker characterization circuit, an adaptive sound filter circuit, and a speaker recognition circuit. The speaker characterization circuit operates in a training mode to learn characteristics of the targeted speaker's voice component in the microphone signal, and to store the learned characteristics. The adaptive sound filter circuit adaptively filters the microphone signal responsive to a control signal. The speaker recognition circuit uses the learned characteristics to recognize the presence of the targeted speaker's voice in the microphone signal and to regulate the control signal to cause the adaptive sound filter circuit to adapt the filtering to increase the targeted speaker's voice component of the microphone signal relative to other components.
    • 公开了响应于对目标说话者的声音的识别自适应地过滤麦克风信号的电子设备和方法。 电子设备可以包括麦克风,扬声器表征电路,自适应声音滤波器电路和扬声器识别电路。 扬声器表征电路在训练模式下操作以学习麦克风信号中的目标扬声器的语音分量的特征,并且存储所学习的特征。 自适应声音滤波器电路响应于控制信号自适应地过滤麦克风信号。 扬声器识别电路使用所学习的特征来识别麦克风信号中目标扬声器声音的存在并且调节控制信号以使自适应声音滤波器电路适应滤波以增加麦克风信号相对的目标说话者的语音分量 到其他组件。