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1. 发明授权

US06954160B1 Filter for digitally processing an analog input signal with analog feedback 有权
标题翻译：用模拟反馈数字处理模拟输入信号的滤波器
公开(公告)号：US06954160B1
公开(公告)日：2005-10-11
申请号：US10821465
申请日：2004-04-09
申请人： William A. Burkland , Jonathan S. McCalmont
发明人： William A. Burkland , Jonathan S. McCalmont
IPC分类号： H03M3/00
CPC分类号： H03H17/04 , H03H17/0289
摘要： A filter is described for digitally processing an analog input signal with analog feedback. In one example, the filter uses a topology similar to a second order universal filter block and includes a signal combiner for producing an analog output signal based upon an analog input signal and one or more analog feedback signals. An analog to digital converter processes the analog output signal into a digital data stream which is digitally processed to produce one or more digital output signals which are converted to one or more analog feedback signals. The digital processing can include a bandpass transfer function and a lowpass transfer function. The filter may be implemented in mixed-signal CMOS using standard CMOS processing techniques.
摘要翻译：描述了一种用于通过模拟反馈数字处理模拟输入信号的滤波器。在一个示例中，滤波器使用类似于二阶通用滤波器块的拓扑，并且包括用于基于模拟输入信号和一个或多个模拟反馈信号产生模拟输出信号的信号组合器。模数转换器将模拟输出信号处理成数字数据流，数字数据流被数字处理以产生一个或多个数字输出信号，该数字输出信号被转换成一个或多个模拟反馈信号。数字处理可以包括带通传递函数和低通传递函数。滤波器可以使用标准CMOS处理技术在混合信号CMOS中实现。

2. 发明授权

US06822480B1 Bi-directional bus level translator 有权
标题翻译：双向总线电平转换器
公开(公告)号：US06822480B1
公开(公告)日：2004-11-23
申请号：US10654283
申请日：2003-09-02
申请人： Jonathan S. McCalmont
发明人： Jonathan S. McCalmont
IPC分类号： H03K190175
CPC分类号： H04L25/24 , H03K19/018592
摘要： A circuit is provided to transfer data between a first data bus section operating on a first supply voltage and a second data bus section operating on a second, different supply voltage. The circuit includes a first circuit path and a second circuit path each coupled to receive a data signal from one data bus section and to drive the other data bus section. Each of the first and second circuit paths includes a delay circuit, a flip flop, a logic circuit providing an AND function and an output driver circuit. In operation, when the data signal received on one of the first and second data bus sections has a first logical value, an output driver signal of the respective circuit path is asserted and the output driver circuit drives the other data bus section to the first logical value in response to the output driver signal.
摘要翻译：提供电路以在以第一电源电压工作的第一数据总线部分和在第二不同电源电压下工作的第二数据总线部分之间传送数据。电路包括第一电路路径和第二电路路径，每个路径被耦合以从一个数据总线部分接收数据信号并驱动另一个数据总线部分。第一和第二电路路径中的每一个包括延迟电路，触发器，提供AND功能的逻辑电路和输出驱动器电路。在操作中，当在第一和第二数据总线部分之一上接收的数据信号具有第一逻辑值时，确定各个电路路径的输出驱动器信号，并且输出驱动器电路将另一个数据总线部分驱动到第一逻辑响应于输出驱动器信号的值。

3. 发明授权

US06274293B1 Method of manufacturing flexible metallic photonic band gap structures, and structures resulting therefrom 失效
标题翻译：制造柔性金属光子带隙结构的方法及由此产生的结构
公开(公告)号：US06274293B1
公开(公告)日：2001-08-14
申请号：US09086790
申请日：1998-05-28
申请人： Sandhya Gupta , Gary L. Tuttle , Mihail Sigalas , Jonathan S. McCalmont , Kai-Ming Ho
发明人： Sandhya Gupta , Gary L. Tuttle , Mihail Sigalas , Jonathan S. McCalmont , Kai-Ming Ho
IPC分类号： G03F700
CPC分类号： G02B6/1225 , B82Y20/00
摘要： A method of manufacturing a flexible metallic photonic band gap structure operable in the infrared region, comprises the steps of spinning on a first layer of dielectric on a GaAs substrate, imidizing this first layer of dielectric, forming a first metal pattern on this first layer of dielectric, spinning on and imidizing a second layer of dielectric, and then removing the GaAs substrate. This method results in a flexible metallic photonic band gap structure operable with various filter characteristics in the infrared region. This method may be used to construct multi-layer flexible metallic photonic band gap structures. Metal grid defects and dielectric separation layer thicknesses are adjusted to control filter parameters.
摘要翻译：制造在红外区域可操作的柔性金属光子带隙结构的方法包括以下步骤：在GaAs衬底上的第一层电介质上旋转，将该第一层电介质酰亚胺化，在该第一层上形成第一金属图案电介质，旋涂和酰亚胺化第二层电介质，然后除去GaAs衬底。该方法产生灵活的金属光子带隙结构，其可在红外区域中具有各种滤波器特性。该方法可用于构建多层柔性金属光子带隙结构。调整金属栅格缺陷和介电分层厚度以控制滤波器参数。

4. 发明授权

US06903569B2 Input terminal with combined logic threshold and reset function 有权
公开(公告)号：US06903569B2
公开(公告)日：2005-06-07
申请号：US10654337
申请日：2003-09-02
申请人： Jonathan S. McCalmont
发明人： Jonathan S. McCalmont
IPC分类号： H04L25/02 , H03K19/173 , H04B1/38 , H03K19/003
CPC分类号： H03K19/1732
摘要： A circuit receives a first supply voltage on a first terminal where the first supply voltage is used to supply circuitry within the circuit. The circuit includes an input terminal receiving a first signal and an input circuit coupled to the input terminal. The first signal has a logical high value at a second voltage and a logical low value at a third voltage. The second voltage is used to establish a switching threshold of at least some of the input and output signals of the circuit. The input circuit provides a reset signal to circuitry within the circuit causing the circuitry to reset. The reset signal is asserted when the first signal on the input terminal has a logical low value and the third voltage comprises a voltage below a predetermined trigger threshold of the input circuit.

5. 发明授权

US06963191B1 Self-starting reference circuit 有权
标题翻译：自启动参考电路
公开(公告)号：US06963191B1
公开(公告)日：2005-11-08
申请号：US10683845
申请日：2003-10-10
申请人： Jonathan S. McCalmont
发明人： Jonathan S. McCalmont
IPC分类号： G05F1/10 , G05F3/16 , G05F3/26
CPC分类号： G05F3/262 , G05F3/267
摘要： A reference circuit provides a reference electrical characteristic such as a current or voltage using a low-threshold field effect transistor (FET) for improved start-up operation. The use of a low-threshold FET eliminates a stable operating point from occurring at zero current allowing the elimination of additional startup circuitry thereby providing power and space savings, particularly in analog CMOS circuitry. Additionally, the use of a low-threshold FET allows a lower voltage requirement from the power supply providing additional power savings.
摘要翻译：参考电路使用低阈值场效应晶体管（FET）提供诸如电流或电压的参考电气特性，用于改善启动操作。使用低阈值FET消除了在零电流下发生稳定的工作点，从而消除额外的启动电路，从而提供功率和空间节省，特别是在模拟CMOS电路中。另外，使用低阈值FET允许电源提供更低的电压要求，从而提供额外的功率节省。

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