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1.发明授权Skewless differential switching scheme for current-mode digital-to-analog converters 有权电流模式数/模转换器的无偏差分开关方案公开(公告)号：US06310569B1
公开(公告)日：2001-10-30
申请号：US09774443
申请日：2001-01-31
IPC分类号： H03M180
CPC分类号： H03K17/04106 , H03K17/693
摘要： A skewless differential switching circuit uses skewless switching elements to convert complementary signals with skew into complementary output signals with minimal time skew between the output signals and with equalized rise and fall times of the output signals for minimum harmonic distortion.
摘要翻译： 无偏差差分开关电路使用无偏移开关元件将具有歪斜的互补信号转换为互补输出信号，在输出信号之间具有最小的时间偏移，并具有用于最小谐波失真的输出信号的均衡上升和下降时间。
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2.发明授权Circuit for precise measurement of the average value of the outputs of multiple circuit unit elements 有权用于精确测量多个电路单元的输出的平均值的电路公开(公告)号：US06804697B2
公开(公告)日：2004-10-12
申请号：US09905368
申请日：2001-07-13
IPC分类号： G06G712
CPC分类号： G06G7/14
摘要： An averaging circuit includes: input signal nodes for providing input signals 330; a multiplexing circuit 320 coupled to the input signal nodes for switching between the input signals 330 to create a time waveform; a low pass filter 300 coupled to an output 340 of the multiplexing circuit 320 for filtering the time waveform to create an average signal; and an average replication circuit 310 coupled to an output 350 of the low pass filter 300.
摘要翻译： 平均电路包括：输入信号节点，用于提供输入信号330; 耦合到输入信号节点的多路复用电路320，用于在输入信号330之间切换以产生时间波形; 耦合到多路复用电路320的输出340的低通滤波器300，用于对时间波形进行滤波以产生平均信号; 以及耦合到低通滤波器300的输出端350的平均复制电路310。
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公开(公告)号：US06424283B1
公开(公告)日：2002-07-23
申请号：US09904990
申请日：2001-07-13
IPC分类号： H03M168
摘要： A segmented digital-to-analog converter includes: upper segments 200, 210, and 220; a thermometer decoder 400; a randomizing circuit 410 coupled between the thermometer decoder 400 and the upper segments 200, 210, and 220 for randomizing an output of the thermometer decoder 400; a divider location selector circuit 420 coupled between the randomizing circuit 410 and the upper segments 200, 210, and 220 for choosing a selected segment from the upper segments 200, 210, and 220; and lower segments 225 coupled to the selected segment.
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公开(公告)号：US08456341B2
公开(公告)日：2013-06-04
申请号：US13134301
申请日：2011-06-03
申请人： Rahmi Hezar , Baher Haroun , Halil Kiper , Mounir Fares , Ajay Kumar
发明人： Rahmi Hezar , Baher Haroun , Halil Kiper , Mounir Fares , Ajay Kumar
IPC分类号： H03M1/66
摘要： A system for processing a signal includes a detector configured to detect a two-level stream of bits; a converter configured to generate a three-level control signal based on two adjacent values within the two-level stream of bits; and a switch configured to determine which of three different paths to couple a current source to based on a value of the three-level control signal. Thus, based on adjacent values of the output stream a three-level control signal is generated which controls coupling of the current source to one of three different paths. This type of three-level digital-to-analog converter can be, for example, part of the feedback loop of an analog-to-digital converter. Similar techniques can also be utilized in a multi-segment digital-to-analog converter in which each segment of the DAC is controlled by a 3-level control signal and the DAC is implement using PMOS devices. The current source for each DAC segment is diverted to ground, the M-node, or the P-node depending on the value of the 3-level control signal.
摘要翻译： 一种用于处理信号的系统包括：检测器，被配置为检测两级比特流; 转换器，被配置为基于所述两级比特流内的两个相邻值生成三电平控制信号; 以及开关，被配置为基于三电平控制信号的值来确定三个不同路径中的哪一个耦合电流源。 因此，基于输出流的相邻值，生成三电平控制信号，其控制电流源与三个不同路径之一的耦合。 这种类型的三电平数模转换器可以是例如模数转换器的反馈回路的一部分。 类似技术也可以用在多段数模转换器中，其中DAC的每个段由3电平控制信号控制，并且使用PMOS器件来实现DAC。 每个DAC段的电流源根据3电平控制信号的值转移到地，M节点或P节点。
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公开(公告)号：US20120306678A1
公开(公告)日：2012-12-06
申请号：US13134301
申请日：2011-06-03
申请人： Rahmi Hezar , Baher Haroun , Halil Kiper , Mounir Fares , Ajay Kumar
发明人： Rahmi Hezar , Baher Haroun , Halil Kiper , Mounir Fares , Ajay Kumar
IPC分类号： H03M1/72
摘要： A system for processing a signal includes a detector configured to detect a two-level stream of bits; a converter configured to generate a three-level control signal based on two adjacent values within the two-level stream of bits; and a switch configured to determine which of three different paths to couple a current source to based on a value of the three-level control signal. Thus, based on adjacent values of the output stream a three-level control signal is generated which controls coupling of the current source to one of three different paths. This type of three-level digital-to-analog converter can be, for example, part of the feedback loop of an analog-to-digital converter. Similar techniques can also be utilized in a multi-segment digital-to-analog converter in which each segment of the DAC is controlled by a 3-level control signal and the DAC is implement using PMOS devices. The current source for each DAC segment is diverted to ground, the M-node, or the P-node depending on the value of the 3-level control signal.
摘要翻译： 一种用于处理信号的系统包括：检测器，被配置为检测两级比特流; 转换器，被配置为基于所述两级比特流内的两个相邻值生成三电平控制信号; 以及开关，被配置为基于三电平控制信号的值来确定三个不同路径中的哪一个耦合电流源。 因此，基于输出流的相邻值，生成三电平控制信号，其控制电流源与三个不同路径之一的耦合。 这种类型的三电平数模转换器可以是例如模数转换器的反馈回路的一部分。 类似的技术也可以用在多段数模转换器中，其中DAC的每个段由3电平控制信号控制，并且使用PMOS器件实现DAC。 每个DAC段的电流源根据3电平控制信号的值转移到地，M节点或P节点。
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