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1. 发明申请

US20080002841A1 Low-power high-PSRR current-mode microphone pre-amplifier system and method 有权
标题翻译：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
申请人： Michael W. Baker , Micah O'Halloran , Rahul Sarpeshkar
发明人： Michael W. Baker , Micah O'Halloran , Rahul Sarpeshkar
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。

2. 发明授权

US07787642B2 Low-power high-PSRR current-mode microphone pre-amplifier system and method 有权
标题翻译：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
申请人： Michael W. Baker , Micah O'Halloran , Rahul Sarpeshkar
发明人： Michael W. Baker , Micah O'Halloran , Rahul Sarpeshkar
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。

3. 发明申请

US20060087362A1 Analog storage cell with low leakage 有权
标题翻译：具有低泄漏的模拟存储单元
公开(公告)号：US20060087362A1
公开(公告)日：2006-04-27
申请号：US11256632
申请日：2005-10-21
申请人： Micah O'Halloran , Rahul Sarpeshkar
发明人： Micah O'Halloran , Rahul Sarpeshkar
IPC分类号： H03K17/687
CPC分类号： G11C27/024 , G11C27/02 , H03K17/162
摘要： An analog storage cell circuit includes a switch that minimizes subthreshold conduction and diode leakage, as well as an accumulation-mode coupling mechanism to minimize overall switch leakage to minimize accumulation-mode leakage. In one embodiment, an analog storage circuit includes a sample and hold circuit including an amplifier having first and second inputs and a switch coupled to the first input of the amplifier. The switch includes a first switching device forming a core of the switch, a second switching device coupled to the first switching device to disconnect the first switching device from a first terminal during the hold phase, and a third switching device coupled to the first switching device to connect the first switching device to a second terminal during the hold phase to minimize accumulation mode conduction in the first switching device.
摘要翻译：模拟存储单元电路包括使亚阈值导通和二极管泄漏最小化的开关，以及累积模式耦合机制，以最小化整体开关泄漏以最小化累积模式泄漏。在一个实施例中，模拟存储电路包括采样和保持电路，其包括具有第一和第二输入的放大器和耦合到放大器的第一输入的开关。开关包括形成开关的核心的第一开关装置，耦合到第一开关装置的第二开关装置，以在保持阶段期间将第一开关装置与第一端子断开;以及第三开关装置，其耦合到第一开关装置以在保持阶段期间将第一开关器件连接到第二端子，以最小化第一开关器件中的累积模式导通。

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