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公开(公告)号：US20120114081A1
公开(公告)日：2012-05-10
申请号：US13352818
申请日：2012-01-18
IPC分类号： H04L27/06
CPC分类号： H04B1/1036 , G01R23/163
摘要： A system and technique for providing to flexible, programmable frequency estimators and spectrum analyzers that can operate over extremely large bandwidths and yet provide high spectral resolution are described. The acquisition time and hardware complexity of one technique scale as O(N), where N denotes the number of frequency bins acquired. Embodiments are disclosed in which architectures are implemented using exponentially-tapered transmission lines and filter cascades.
摘要翻译： 描述了一种用于提供灵活的可编程频率估计器和频谱分析仪的系统和技术，其可以在极大的带宽上工作并且还提供高的光谱分辨率。 一种技术尺度的采集时间和硬件复杂度为O（N），其中N表示获取的频率块的数量。 公开了实施例，其中使用指数级锥形传输线和滤波器级联来实现架构。
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公开(公告)号：US08498366B2
公开(公告)日：2013-07-30
申请号：US13352818
申请日：2012-01-18
IPC分类号： H04L27/06
CPC分类号： H04B1/1036 , G01R23/163
摘要： A system and technique for providing to flexible, programmable frequency estimators and spectrum analyzers that can operate over extremely large bandwidths and yet provide high spectral resolution are described. The system and technique may include a cascaded super-heterodyne apparatus for estimating a frequency and a bandwidth of signals proximate in frequency to a desired signal, a tunable filter coupled to an input of a receiver, and a tuner which receives a signal from said cascaded super-heterodyne apparatus and tunes the filter to filter out unwanted signals from the receiver.
摘要翻译： 描述了一种用于提供灵活的可编程频率估计器和频谱分析仪的系统和技术，其可以在极大的带宽上工作并且还提供高的光谱分辨率。 该系统和技术可以包括用于估计频率接近于期望信号的信号的频率和带宽的级联超外差设备，耦合到接收机的输入的可调谐滤波器以及从所述级联接收信号的调谐器 超外差设备并调谐滤波器以滤除接收机中的不需要的信号。
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公开(公告)号：US08121223B2
公开(公告)日：2012-02-21
申请号：US11958990
申请日：2007-12-18
IPC分类号： H04L27/00
CPC分类号： H04B1/1036 , G01R23/163
摘要： A system and technique for providing to flexible, programmable frequency estimators and spectrum analyzers that can operate over extremely large bandwidths and yet provide high spectral resolution are described. The acquisition time and hardware complexity of one technique scale as O(N), where N denotes the number of frequency bins acquired. Embodiments are disclosed in which architectures are implemented using exponentially-tapered transmission lines and filter cascades.
摘要翻译： 描述了一种用于提供灵活的可编程频率估计器和频谱分析仪的系统和技术，其可以在极大的带宽上工作并且还提供高的光谱分辨率。 一种技术尺度的采集时间和硬件复杂度为O（N），其中N表示获取的频率块的数量。 公开了实施例，其中使用指数级锥形传输线和滤波器级联来实现架构。
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公开(公告)号：US20080240301A1
公开(公告)日：2008-10-02
申请号：US11958990
申请日：2007-12-18
IPC分类号： H04L27/06
CPC分类号： H04B1/1036 , G01R23/163
摘要： A system and technique for providing to flexible, programmable frequency estimators and spectrum analyzers that can operate over extremely large bandwidths and yet provide high spectral resolution are described. The acquisition time and hardware complexity of one technique scale as O(N), where N denotes the number of frequency bins acquired. Embodiments are disclosed in which architectures are implemented using exponentially-tapered transmission lines and filter cascades.
摘要翻译： 描述了一种用于提供灵活的可编程频率估计器和频谱分析仪的系统和技术，其可以在极大的带宽上工作并且还提供高的光谱分辨率。 一种技术尺度的采集时间和硬件复杂度为O（N），其中N表示获取的频率块的数量。 公开了实施例，其中使用指数级锥形传输线和滤波器级联来实现架构。
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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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6.发明授权公开(公告)号：US08285523B2
公开(公告)日：2012-10-09
申请号：US12575291
申请日：2009-10-07
申请人： Soumyajit Mandal , Rahul Sarpeshkar
发明人： Soumyajit Mandal , Rahul Sarpeshkar
CPC分类号： G05B17/02 , G06F19/12 , G06F19/702 , G06G7/58
摘要： A system for modeling chemical reactions using analog or hybrid-analog-digital electronic circuits. The system exploits similarities between the kinetic rates of chemical reaction and the rates governing current flow in electronic devices such as bipolar junction transistors (BJTs) and metal oxide semiconductor field effect transistors (MOSFETs) operating at subthreshold conditions. These devices, which accurately model the stochastics of chemical processes, can be networked into large arrays to model chemical reaction networks, including biochemical reactions and genetic processes such as activation, induction, transcription, and translation.
摘要翻译： 使用模拟或混合模拟数字电子电路建模化学反应的系统。 该系统利用化学反应的动力学速率和控制电流器件（例如双极结型晶体管（BJT））和在亚阈值条件下工作的金属氧化物半导体场效应晶体管（MOSFET）的电流的速率之间的相似性。 这些准确地模拟化学过程随机化的装置可以联网成大型阵列，以建立化学反应网络，包括生化反应和遗传过程，如激活，诱导，转录和翻译。
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7.发明申请公开(公告)号：US20100211364A1
公开(公告)日：2010-08-19
申请号：US12575291
申请日：2009-10-07
申请人： Soumyajit Mandal , Rahul Sarpeshkar
发明人： Soumyajit Mandal , Rahul Sarpeshkar
CPC分类号： G05B17/02 , G06F19/12 , G06F19/702 , G06G7/58
摘要： A system for modeling chemical reactions using analog or hybrid-analog-digital electronic circuits. The system exploits similarities between the kinetic rates of chemical reaction and the rates governing current flow in electronic devices such as bipolar junction transistors (BJTs) and metal oxide semiconductor field effect transistors (MOSFETs) operating at subthreshold conditions. These devices, which accurately model the stochastics of chemical processes, can networked into large array to model chemical reaction networks, including biochemical reactions and genetic processes such as activation, induction, transcription, and translation.
摘要翻译： 使用模拟或混合模拟数字电子电路建模化学反应的系统。 该系统利用化学反应的动力学速率和控制电流器件（例如双极结型晶体管（BJT））和在亚阈值条件下工作的金属氧化物半导体场效应晶体管（MOSFET）的电流的速率之间的相似性。 这些准确地模拟化学工艺随机化的装置可以联网到大型阵列，以建立化学反应网络，包括生化反应和遗传过程如活化，诱导，转录和翻译。
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公开(公告)号：US08708923B2
公开(公告)日：2014-04-29
申请号：US12700214
申请日：2010-02-04
IPC分类号： A61B5/04
CPC分类号： A61B7/045
摘要： A wearable system for monitoring a plurality of physiological signals is provided. The wearable system includes at least one sensor producing the physiological signals associated with a patient. A processor unit receives the physiological signals from the at least one sensor. The processor unit analyzes the physiological signals to determine the occurrence of a triggered event and produces at least one output signal identifying the triggered event. A transmission unit receives the at least one output signal and prepares for transmission of the at least one output signal.
摘要翻译： 提供了一种用于监测多个生理信号的可穿戴系统。 可穿戴系统包括产生与患者相关联的生理信号的至少一个传感器。 处理器单元接收来自至少一个传感器的生理信号。 处理器单元分析生理信号以确定触发事件的发生，并产生识别触发事件的至少一个输出信号。 传输单元接收所述至少一个输出信号并准备传输所述至少一个输出信号。
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公开(公告)号：US08045947B2
公开(公告)日：2011-10-25
申请号：US11609060
申请日：2006-12-11
申请人： Soumyajit Mandal , Rahul Sarpeshkar
发明人： Soumyajit Mandal , Rahul Sarpeshkar
IPC分类号： H04B1/10
摘要： In one aspect, the invention is a far-field power extraction circuit which includes an integrated antenna and impedance matching portion and a rectifier portion. The antenna and impedance matching portion includes an antenna configured to be responsive to a propagating electromagnetic signal and which provides a resonant response at a resonant frequency. In response to the electromagnetic signal, the antenna provides an electromagnetic output signal at an antenna port. The antenna and impedance matching portion is configured to match an antenna impedance with a remainder of the far-field power extraction circuit including the rectifier portion of the power extraction circuit coupled to the antenna and impedance matching portion. The rectifier is configured to rectify the electromagnetic output signal provided by the antenna to produce a direct current (DC) voltage at an output of the rectifier.
摘要翻译： 一方面，本发明是一种远场功率提取电路，其包括集成天线和阻抗匹配部分以及整流器部分。 天线和阻抗匹配部分包括被配置为响应于传播的电磁信号并且以谐振频率提供谐振响应的天线。 响应于电磁信号，天线在天线端口提供电磁输出信号。 天线和阻抗匹配部分被配置为将天线阻抗与包括耦合到天线和阻抗匹配部分的功率提取电路的整流器部分的远场功率提取电路的其余部分相匹配。 整流器被配置为整流由天线提供的电磁输出信号，以在整流器的输出端产生直流（DC）电压。
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公开(公告)号：US07167090B1
公开(公告)日：2007-01-23
申请号：US10944676
申请日：2004-09-17
申请人： Soumyajit Mandal , Rahul Sarpeshkar
发明人： Soumyajit Mandal , Rahul Sarpeshkar
IPC分类号： G08B1/08
CPC分类号： H01Q1/2225 , H01Q1/248 , H01Q9/28 , H01Q23/00 , H02J7/025 , H02J17/00 , H02J50/00 , H02J50/27 , H02J50/80 , H02M7/219 , Y02B70/1441
摘要： A method and apparatus for performing far-field power extraction are presented. The method includes receiving an electromagnetic radiation signal, rectifying the signal to produce a direct current (D.C.) voltage and providing the D.C. voltage to a circuit. A far-field power extraction circuit includes an antenna for receiving an electromagnetic radiation signal, a rectifier for rectifying the electromagnetic radiation signal. The circuit may further include a charge pump for amplifying the rectified voltage, an impedance matching network for coupling the antenna to the rectifier and a feedback tuning circuit for optimizing performance of the extraction circuit.
摘要翻译： 提出了一种用于进行远场功率提取的方法和装置。 该方法包括接收电磁辐射信号，对信号进行整流以产生直流（DC）电压并向电路提供直流电压。 远场功率提取电路包括用于接收电磁辐射信号的天线，用于整流电磁辐射信号的整流器。 电路还可以包括用于放大整流电压的电荷泵，用于将天线耦合到整流器的阻抗匹配网络和用于优化提取电路的性能的反馈调谐电路。
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