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公开(公告)号：US07095256B1
公开(公告)日：2006-08-22
申请号：US10892669
申请日：2004-07-16
IPC分类号： G01R19/00
CPC分类号： H03D1/18 , H03F1/02 , H03F3/45183 , H03F2200/102
摘要： An envelope detector system is disclosed for detecting an envelope in a system input signal. The envelope detector system includes an input node for receiving an input voltage signal, a transconducting amplifier for receiving the input voltage signal and producing an input current signal, a current mirror network for receiving the input current signal and for producing a current output signal, a capacitor for receiving the current output signal, and a rectifier output node for providing a rectifier output current signal. The capacitor is coupled to an input of the transconducting amplifier. The rectifier output current signal is fed into the current-mode wide-dynamic-range peak detector. The peak detector produces the envelope detector output current signal.
摘要翻译： 公开了一种用于检测系统输入信号中的包络的包络检测器系统。 包络检测器系统包括用于接收输入电压信号的输入节点，用于接收输入电压信号并产生输入电流信号的跨导放大器，用于接收输入电流信号并产生电流输出信号的电流镜网络， 用于接收电流输出信号的电容器，以及用于提供整流器输出电流信号的整流器输出节点。 电容器耦合到跨导放大器的输入端。 整流器输出电流信号馈送到电流模式宽动态范围峰值检测器。 峰值检测器产生包络检测器输出电流信号。
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2.发明申请Low-power high-PSRR current-mode microphone pre-amplifier system and method 有权低功耗高PSRR电流模式麦克风前置放大器系统及方法公开(公告)号：US20080002841A1
公开(公告)日：2008-01-03
申请号：US10892932
申请日：2004-07-16
IPC分类号： H04R3/00
CPC分类号： H03F3/45475 , A61N1/36036 , H03F1/223 , H03F1/301 , H03F1/342 , H03F3/185 , H03F2200/462 , H03F2203/45138 , H04R3/00 , H04R25/00 , H04R2410/00
摘要： A low power high dynamic range microphone amplification system is disclosed. The system includes a current sensing amplifier for receiving an input current signal representative of auditory information and for providing an amplifier output signal. The current sensing amplifier includes a DC bias network that includes a cascode filter.
摘要翻译： 公开了一种低功率高动态范围麦克风放大系统。 该系统包括用于接收代表听觉信息的输入电流信号并用于提供放大器输出信号的电流感测放大器。 电流感测放大器包括包括共源共栅滤波器的DC偏置网络。
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3.发明授权Low-power high-PSRR current-mode microphone pre-amplifier system and method 有权低功耗高PSRR电流模式麦克风前置放大器系统及方法公开(公告)号：US07787642B2
公开(公告)日：2010-08-31
申请号：US10892932
申请日：2004-07-16
IPC分类号： H04R3/00
CPC分类号： H03F3/45475 , A61N1/36036 , H03F1/223 , H03F1/301 , H03F1/342 , H03F3/185 , H03F2200/462 , H03F2203/45138 , H04R3/00 , H04R25/00 , H04R2410/00
摘要： A low power high dynamic range microphone amplification system is disclosed. The system includes a current sensing amplifier for receiving an input current signal representative of auditory information and for providing an amplifier output signal. The current sensing amplifier includes a DC bias network that includes a cascode filter.
摘要翻译： 公开了一种低功率高动态范围麦克风放大系统。 该系统包括用于接收代表听觉信息的输入电流信号并用于提供放大器输出信号的电流感测放大器。 电流感测放大器包括包括共源共栅滤波器的DC偏置网络。
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公开(公告)号：US5428484A
公开(公告)日：1995-06-27
申请号：US289508
申请日：1994-08-12
申请人： Michael W. Baker
发明人： Michael W. Baker
CPC分类号： A61B1/247 , A61B1/00032 , A61B1/0669 , F21L15/02 , F21V33/0084 , F21V7/0075 , G02B5/08
摘要： A hand held telescoping mirror device includes a light bulb situated to provide a broad illumination region. The device includes several useful features such as a telescoping arm that retracts within the handle, a twist type on-off switch, and a mirror that's interchangeable with a magnifying glass. In addition, the handle and telescoping arm are separable from the rest of the device so that they may be reconnected to various accessories such as a brush or magnet.
摘要翻译： 手持式伸缩镜装置包括位于提供宽的照明区域的灯泡。 该装置包括几个有用的特征，例如在手柄内缩回的伸缩臂，扭转型开关开关和可与放大镜互换的反射镜。 此外，手柄和伸缩臂可与装置的其余部分分离，使得它们可以重新连接到诸如刷子或磁体的各种附件。
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