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1. 发明授权

US06205197B1 Programmable supervisory circuit and applications therefor 失效
标题翻译：可编程监控电路及其应用
公开(公告)号：US06205197B1
公开(公告)日：2001-03-20
申请号：US09320217
申请日：1999-05-26
申请人： Ravi S. Ananth
发明人： Ravi S. Ananth
IPC分类号： G07C300
CPC分类号： G01R19/2506 , G01R19/003 , G01R19/02 , G01R19/2513 , G06F7/602
摘要： The invention herein provides a supervisory circuit which is adapted to monitor an input signal and produce as an output signal, a parametric signal corresponding to the input signal. The circuit includes an input for receiving the input signal, and a stochastic processor coupled to the input for receiving the input signal and processing it to derive a signal that represents a parametric measure of the input signal. An output connected to said stochastic processor provides the parametric output signal as an output for supervisory purposes.
摘要翻译：本发明提供了一种监控电路，其适于监视输入信号并产生与输入信号对应的参数信号作为输出信号。该电路包括用于接收输入信号的输入端和耦合到该输入端的随机处理器，用于接收该输入信号并进行处理以产生一个表示该输入信号的参数测量值的信号。连接到所述随机处理器的输出提供参数输出信号作为输出用于监督目的。

2. 发明授权

US07317356B2 Ultra low-frequency response, DC-blocked low-noise amplifier 有权
标题翻译：超低频响应，直流阻塞低噪声放大器
公开(公告)号：US07317356B2
公开(公告)日：2008-01-08
申请号：US11173507
申请日：2005-07-01
申请人： Ravi S. Ananth
发明人： Ravi S. Ananth
IPC分类号： H03F3/45
CPC分类号： H03F3/187 , H03F1/26 , H03F1/38 , H03F3/005 , H03F3/45183 , H03F3/45475 , H03F3/45968 , H03F2200/294 , H03F2200/372 , H03F2203/45156 , H03F2203/45296 , H03F2203/45332 , H03F2203/45512 , H03F2203/45544 , H03F2203/45546 , H03F2203/45631 , H03F2203/45632 , H03F2203/45686
摘要： An amplifier circuit is disclosed that allows for practical integrated circuit implementation of a dc-blocked, low-noise differential amplifier capable of amplifying ultra low-frequency signals and amplitudes ranging upwards of a few microvolts. DC-blocking capacitors having a capacitance value close to that of the effective input capacitance of the low-noise amplifier's inputs can be used by incorporating a positive feedback mechanism that tracks any variations in the amplifier gain or integrated circuit's technology process and lowers or cancels the input parasitic capacitances. Advantageously, the parasitic capacitance of transistors, typically field effect transistors, located on an integrated circuit chip are used in the feedback mechanism. This reduces the capacitive voltage division loss of the signal at the input of the amplifier while still allowing for the use of very small values of dc-blocking capacitance. No other active elements other than the amplifier itself are required to attain a low area, integrated circuit implementation of a dc-blocked, yet ultra low-frequency high pass filtered, low-noise amplifier.
摘要翻译：公开了一种放大器电路，其允许实现一种直流阻塞的低噪声差分放大器的实际集成电路，该差分放大器能够放大超过几微伏范围的超低频信号和幅度。具有接近低噪声放大器输入的有效输入电容的电容值的隔直电容器可以通过结合一个正反馈机制来使用，该正反馈机制跟踪放大器增益或集成电路技术过程中的任何变化，并降低或取消输入寄生电容。有利地，在反馈机制中使用位于集成电路芯片上的晶体管（通常为场效应晶体管）的寄生电容。这降低了放大器输入端的信号的电容分压损耗，同时仍然允许使用非常小的直流阻塞电容值。除了放大器本身之外，不需要其他有源元件来实现直流阻塞但是超低频高通滤波的低噪声放大器的低面积集成电路实现。

3. 发明授权

US5808769A Combination diffused and directed infrared transceiver 失效
标题翻译：组合扩散和定向红外收发器
公开(公告)号：US5808769A
公开(公告)日：1998-09-15
申请号：US717519
申请日：1996-09-23
申请人： Albert J. Kerklaan , Gerald R. Drennan , Ravi S. Ananth , Michael J. Preyde
发明人： Albert J. Kerklaan , Gerald R. Drennan , Ravi S. Ananth , Michael J. Preyde
IPC分类号： H04B10/40 , H04B10/11 , H04B10/04 , H04B10/10 , H04B10/105
CPC分类号： H04B10/1143 , H04B10/40
摘要： An infrared transceiver for use with a computer in a wireless Local Area Network. The transceiver comprises a light emitting diode array and photodiodes. The transceiver is operable in a diffused beam arrangement and a directed beam arrangement. The transceiver is converted to directed beam operation by attaching a user installable collimator. The collimator redirects the beams into parallel beams, and the direction of the parallel beams is controlled through an adjustable tilt stand. The collimator is detachable for converting back to diffused beam operation.
摘要翻译：用于无线局域网中的计算机的红外收发器。该收发器包括发光二极管阵列和光电二极管。收发器可以扩散的波束布置和定向波束布置来操作。通过附加用户可安装的准直仪将收发器转换为定向波束操作。准直器将光束重定向成平行光束，平行光束的方向通过可调节的倾斜支架进行控制。准直器可拆卸，用于转换回扩散光束操作。

4. 发明授权

US06618711B1 Programmable supervisory circuit and applications thereof 失效
标题翻译：可编程监控电路及其应用
公开(公告)号：US06618711B1
公开(公告)日：2003-09-09
申请号：US09320224
申请日：1999-05-26
申请人： Ravi S. Ananth
发明人： Ravi S. Ananth
IPC分类号： G06F1518
CPC分类号： G01R19/2506 , G01R19/003 , G01R19/02 , G01R19/2513 , G06F7/602
摘要： The invention herein provides a supervisory circuit which is adapted to monitor an input signal and produce as an output signal, a parametric signal corresponding to the input signal. The circuit includes an input for receiving the input signal, and a stochastic processor coupled to the input for receiving the input signal and processing it to derive a signal that represents a parametric measure of the input signal. An output connected to said stochastic processor provides the parametric output signal as an output for supervisory purposes.
摘要翻译：本发明提供了一种监控电路，其适于监视输入信号并产生与输入信号对应的参数信号作为输出信号。该电路包括用于接收输入信号的输入端和耦合到该输入端的随机处理器，用于接收该输入信号并进行处理以产生一个表示该输入信号的参数测量值的信号。连接到所述随机处理器的输出提供参数输出信号作为输出用于监督目的。

5. 发明授权

US6104968A Programmable supervisory circuit and applications therefore 失效
标题翻译：因此可编程监控电路和应用
公开(公告)号：US6104968A
公开(公告)日：2000-08-15
申请号：US773020
申请日：1996-12-24
申请人： Ravi S. Ananth
发明人： Ravi S. Ananth
IPC分类号： G01R19/00 , G01R19/02 , G01R19/25 , G05D11/00 , G05F1/40 , G06F15/00 , G06F15/18 , G06M1/00 , G07C3/00 , H03M1/12
CPC分类号： G01R19/2506 , G06F7/602 , G01R19/003 , G01R19/02 , G01R19/2513
摘要： The invention herein provides a supervisory circuit which is adapted to monitor an input signal and produce as an output signal, a parametric signal corresponding to the input signal. The circuit includes an input for receiving the input signal, and a stochastic processor coupled to the input for receiving the input signal and processing it to derive a signal that represents a parametric measure of the input signal. An output connected to said stochastic processor provides the parametric output signal as an output for supervisory purposes.
摘要翻译：本发明提供了一种监控电路，其适于监视输入信号并产生与输入信号对应的参数信号作为输出信号。该电路包括用于接收输入信号的输入端和耦合到该输入端的随机处理器，用于接收该输入信号并进行处理以产生一个表示该输入信号的参数测量值的信号。连接到所述随机处理器的输出提供参数输出信号作为输出用于监督目的。

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