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公开(公告)号：US07583216B2
公开(公告)日：2009-09-01
申请号：US11863631
申请日：2007-09-28
申请人： Matthew D. Felder , Marcus W. May , Michael R. May
发明人： Matthew D. Felder , Marcus W. May , Michael R. May
IPC分类号： H03M1/66
摘要： A digital to analog converter (DAC) includes at least one digital to analog conversion module and a gated termination. The at least one digital to analog conversion module is coupled to convert at least one bit of a digital signal into an analog signal. The gated termination is coupled to an analog output of the at least one digital to analog conversion module to provide a first termination when a termination selection signal is in a first state and to provide a second termination when the termination selection signal is in a second state.
摘要翻译： 数模转换器（DAC）包括至少一个数模转换模块和门控终端。 所述至少一个数模转换模块被耦合以将数字信号的至少一位转换为模拟信号。 门控终端耦合到至少一个数模转换模块的模拟输出，以在端接选择信号处于第一状态时提供第一终端，并且当终端选择信号处于第二状态时提供第二终端 。
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公开(公告)号：US20090085782A1
公开(公告)日：2009-04-02
申请号：US11863631
申请日：2007-09-28
申请人： Matthew D. Felder , Marcus W. May , Michael R. May
发明人： Matthew D. Felder , Marcus W. May , Michael R. May
摘要： A digital to analog converter (DAC) includes at least one digital to analog conversion module and a gated termination. The at least one digital to analog conversion module is coupled to convert at least one bit of a digital signal into an analog signal. The gated termination is coupled to an analog output of the at least one digital to analog conversion module to provide a first termination when a termination selection signal is in a first state and to provide a second termination when the termination selection signal is in a second state.
摘要翻译： 数模转换器（DAC）包括至少一个数模转换模块和门控终端。 所述至少一个数模转换模块被耦合以将数字信号的至少一位转换为模拟信号。 门控终端耦合到至少一个数模转换模块的模拟输出，以在端接选择信号处于第一状态时提供第一终端，并且当终端选择信号处于第二状态时提供第二终端 。
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公开(公告)号：US07246027B2
公开(公告)日：2007-07-17
申请号：US11078150
申请日：2005-03-11
申请人： Marcus W. May , Matthew D. Felder
发明人： Marcus W. May , Matthew D. Felder
IPC分类号： G01K1/00
CPC分类号： G06F17/5063
摘要： A method and apparatus for conserving power of a mixed-signal system-on-a-chip having analog circuitry, involving determination of an analog variation parameter that is representative of an integrated circuit fabrication process variance of the integrated circuit, and an operational temperature associated with the analog variation parameter. With the analog variation parameter and the operational temperature, an adjustment signal is determined for a power supply level of the integrated circuit, such that power consumption of the integrated circuit is optimized. Further, in mixed-signal integrated circuits with digital and analog circuitry, a digital variation parameter is determined, where the adjustment signal determination is based on the digital variation parameter and the analog variation parameter with respect to the operational temperature. With such a method and apparatus, power consumption is optimized on an IC-by-IC basis such that power consumption of each IC is optimized.
摘要翻译： 一种用于节省具有模拟电路的混合信号系统芯片的功率的方法和装置，涉及确定代表集成电路的集成电路制造工艺变化的模拟变化参数以及与该功能相关联的工作温度 具有模拟变化参数。 利用模拟变化参数和操作温度，确定集成电路的电源电平的调整信号，使得集成电路的功耗被优化。 此外，在具有数字和模拟电路的混合信号集成电路中，确定数字变化参数，其中调整信号确定基于数字变化参数和相对于工作温度的模拟变化参数。 利用这样的方法和装置，在逐个IC的基础上优化功率消耗，从而优化每个IC的功耗。
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4.发明授权公开(公告)号：US07861206B2
公开(公告)日：2010-12-28
申请号：US11852759
申请日：2007-09-10
IPC分类号： G06F17/50
CPC分类号： G06F1/26 , H02J7/0065 , H04M1/72522 , H04W52/0229
摘要： A system-on-a-chip integrated circuit includes a multimedia module that produces rendered output data and a high-speed interface. A processing module generates output multimedia data in accordance with at least a portion of a multimedia application in response to input multimedia data received from either the multimedia module or the high-speed interface. The output multimedia data is provided to either the multimedia module or the high-speed interface. An on-chip DC-to-DC converter converts a battery voltage into a supply voltage that is coupled to the multimedia module, the high-speed interface, and/or the processing module.
摘要翻译： 片上系统集成电路包括产生渲染输出数据和高速接口的多媒体模块。 响应于从多媒体模块或高速接口接收的输入多媒体数据，处理模块根据多媒体应用的至少一部分生成输出多媒体数据。 输出多媒体数据被提供给多媒体模块或高速接口。 片上DC-DC转换器将电池电压转换成耦合到多媒体模块，高速接口和/或处理模块的电源电压。
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公开(公告)号：US07164320B2
公开(公告)日：2007-01-16
申请号：US11009110
申请日：2004-12-10
申请人： Matthew D. Felder , Marcus W. May
发明人： Matthew D. Felder , Marcus W. May
IPC分类号： H03F3/04
CPC分类号： G05F1/573
摘要： A current threshold circuit includes a series impedance, a reference voltage source, and a comparison module. The series impedance couples an output of a current source to a load, wherein impedance of the series impedance is substantially less than impedance of the load. The reference voltage source is operably coupled to produce a reference voltage differential. The comparison module is operably coupled to compare the reference voltage differential with a differential voltage of the series impedance, wherein the comparison module generates an excessive current indication when the differential voltage of the series impedance compares unfavorably to the reference voltage differential.
摘要翻译： 电流阈值电路包括串联阻抗，参考电压源和比较模块。 串联阻抗将电流源的输出耦合到负载，其中串联阻抗的阻抗基本上小于负载的阻抗。 参考电压源可操作地耦合以产生参考电压差。 比较模块可操作地耦合以将参考电压差与串联阻抗的差分电压进行比较，其中当串联阻抗的差分电压与参考电压差不利地相比时，比较模块产生过电流指示。
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6.发明授权公开(公告)号：US07030695B2
公开(公告)日：2006-04-18
申请号：US10675115
申请日：2003-09-30
申请人： Marcus W. May , Matthew D. Felder
发明人： Marcus W. May , Matthew D. Felder
CPC分类号： H03F3/45192 , H03F2200/513
摘要： An amplifier circuit uses low threshold voltage devices for mid rail response in low voltage applications, but uses a high threshold voltage device at an output stage of the amplifier to generate an output from the amplifier.
摘要翻译： 放大器电路在低电压应用中使用低阈值电压器件用于中间轨道响应，但是在放大器的输出级使用高阈值电压器件来产生放大器的输出。
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7.发明授权Touch screen driver for resolving plural contemporaneous touches and methods for use therewith 有权用于解决多个同时期触摸的触摸屏驱动程序及其使用方法公开(公告)号：US08106892B2
公开(公告)日：2012-01-31
申请号：US11927289
申请日：2007-10-29
申请人： Matthew D. Felder , Marcus W. May
发明人： Matthew D. Felder , Marcus W. May
IPC分类号： G06F3/045
摘要： A touch screen driver that can be used with a resistive touch screen includes an input/output module that supplies at least one input signal to at least one of a plurality of input/output ports of the touch screen and that generates at least one output signal, in response to the at least one input signal, and in accordance with at least one control signal. A controller module generates the at least one control signal and that generates a position signal representing a resolved position in accordance with a plurality of contemporaneous touches of the resistive touch screen.
摘要翻译： 可以与电阻式触摸屏一起使用的触摸屏驱动器包括输入/输出模块，其将至少一个输入信号提供给触摸屏的多个输入/输出端口中的至少一个并且产生至少一个输出信号 响应于至少一个输入信号，并且根据至少一个控制信号。 控制器模块产生至少一个控制信号，并且根据电阻式触摸屏的多个同时触摸产生表示分辨位置的位置信号。
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8.发明申请Touch Screen Driver for Resolving Plural Contemporaneous Touches and Methods for Use Therewith 有权触摸屏驱动程序用于解决多个同时接触和使用的方法公开(公告)号：US20090109191A1
公开(公告)日：2009-04-30
申请号：US11927289
申请日：2007-10-29
申请人： Matthew D. Felder , Marcus W. May
发明人： Matthew D. Felder , Marcus W. May
摘要： A touch screen driver that can be used with a resistive touch screen includes an input/output module that supplies at least one input signal to at least one of a plurality of input/output ports of the touch screen and that generates at least one output signal, in response to the at least one input signal, and in accordance with at least one control signal. A controller module generates the at least one control signal and that generates a position signal representing a resolved position in accordance with a plurality of contemporaneous touches of the resistive touch screen.
摘要翻译： 可以与电阻式触摸屏一起使用的触摸屏驱动器包括输入/输出模块，其将至少一个输入信号提供给触摸屏的多个输入/输出端口中的至少一个并且产生至少一个输出信号 响应于至少一个输入信号，并且根据至少一个控制信号。 控制器模块产生至少一个控制信号，并且根据电阻式触摸屏的多个同时触摸产生表示分辨位置的位置信号。
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9.发明授权Method and apparatus to perform battery charging using a DC-DC converter circuit 有权使用DC-DC转换器电路进行电池充电的方法和装置公开(公告)号：US07402981B2
公开(公告)日：2008-07-22
申请号：US10675116
申请日：2003-09-30
申请人： Marcus W. May , Matthew D. Felder
发明人： Marcus W. May , Matthew D. Felder
IPC分类号： H01M10/46
CPC分类号： H02J7/0065 , H02J7/0068
摘要： A battery converter, which is used to convert battery voltage to an output voltage to power an integrated circuit in a battery-operated mode, is placed into a battery-charge mode to charge the battery when external power source is present to power the integrated circuit and the battery needs charging.
摘要翻译： 将用于将电池电压转换为对电池供电模式的集成电路供电的电池转换器被置于电池充电模式，以在外部电源存在时向集成电路供电 电池需要充电。
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公开(公告)号：US07278119B2
公开(公告)日：2007-10-02
申请号：US10612577
申请日：2003-07-02
IPC分类号： G06F17/50
CPC分类号： G06F1/26 , H02J7/0065 , H04M1/72522 , H04W52/0229
摘要： A battery-optimized system-on-a-chip includes multimedia module, a high-speed interface, a processing module, on-chip memory, and an on-chip DC-to-DC converter. The multimedia module operably coupled to produce rendered output data from input data received via the high-speed interface and/or from data stored in the on-chip memory. The high-speed interface is operably coupled to provide data to and from an external source. The on-chip memory is operably coupled to store at least a portion of a multimedia application, wherein the processing module processes input multimedia data in accordance with the multimedia application to produce output multimedia data. The on-chip DC-to-DC converter is operably coupled to convert a battery voltage into a supply voltage that is provided to the multimedia module, the high-speed interface, the processing module, and/or the on-chip memory.
摘要翻译： 电池优化的片上系统包括多媒体模块，高速接口，处理模块，片上存储器和片上DC-DC转换器。 多媒体模块可操作地耦合以从经由高速接口接收的输入数据和/或从存储在片上存储器中的数据产生渲染的输出数据。 高速接口可操作地耦合以向外部源提供数据。 片上存储器可操作地耦合以存储多媒体应用的至少一部分，其中处理模块根据多媒体应用处理输入多媒体数据以产生输出多媒体数据。 片上DC-DC转换器可操作地耦合以将电池电压转换成提供给多媒体模块，高速接口，处理模块和/或片上存储器的电源电压。
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