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公开(公告)号：US07388419B2
公开(公告)日：2008-06-17
申请号：US11490439
申请日：2006-07-20
CPC分类号： H03K19/00369
摘要： A compensation circuit and a method for compensating for process, voltage and temperature (PVT) variations in an integrated circuit (IC). The IC includes several functional modules, each of which includes a set of functional units, and generates an output signal in response to an input signal. The compensation circuit includes a code generator and a logic module. The code generator generates a digital code for each functional unit. The digital codes are based on phase differences between the input signal and the output signal. The logic module generates calibration codes based on the digital codes. The calibration codes compensate for the PVT variations in the corresponding functional units.
摘要翻译： 补偿电路和补偿集成电路（IC）中的工艺，电压和温度（PVT）变化的方法。 IC包括几个功能模块，每个功能模块包括一组功能单元，并且响应于输入信号产生输出信号。 补偿电路包括代码生成器和逻辑模块。 代码生成器为每个功能单元生成数字代码。 数字码基于输入信号和输出信号之间的相位差。 逻辑模块基于数字代码生成校准代码。 校准代码补偿相应功能单元中的PVT变化。
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公开(公告)号：US07495465B2
公开(公告)日：2009-02-24
申请号：US11490441
申请日：2006-07-20
IPC分类号： H03K19/00 , H03K17/16 , H03K19/003 , G06K5/04 , G11B5/00 , G11B20/20 , G06F11/00 , G06F11/30 , G01R31/28 , G08C25/00 , H03M13/00 , H04L1/00
CPC分类号： H03K19/00384
摘要： A compensation circuit and a method that compensates for process, voltage and temperature (PVT) variations in an integrated circuit that includes functional modules. The compensation circuit includes a signal generator, a first code generator, a second code generator, and a mapping module. The signal generator generates a first signal and a second signal depending on aligned process corner, voltage and temperature variations and skewed process corner variations respectively. The first code generator receives the first signal, and generates a first calibration code. The second code generator receives the second signal, and generates a second calibration code. The mapping module provides the first and second calibration codes for compensating for the aligned process corner, voltage and temperature variations and the skewed process corner variations associated with the functional modules respectively.
摘要翻译： 补偿电路和补偿包含功能模块的集成电路中的工艺，电压和温度（PVT）变化的方法。 补偿电路包括信号发生器，第一代码发生器，第二代码生成器和映射模块。 信号发生器分别根据对齐的过程角，电压和温度变化以及偏斜过程角变化产生第一信号和第二信号。 第一代码生成器接收第一信号，并产生第一校准码。 第二代码生成器接收第二信号，并产生第二校准码。 映射模块提供第一和第二校准码，用于分别补偿与功能模块相关联的对准过程角，电压和温度变化以及偏斜的过程角变化。
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公开(公告)号：US07446592B2
公开(公告)日：2008-11-04
申请号：US11490440
申请日：2006-07-20
CPC分类号： H03K19/00384
摘要： A compensation circuit and a method for detecting and compensating for process, voltage, and temperature (PVT) variations in an integrated circuit. The integrated circuit includes plural logic modules that include PMOS transistors and NMOS transistors. The compensation circuit includes first and second functional modules, which generate first and second calibration signals. The first and the second calibration signals are used to compensate for the PVT variations in PMOS and NMOS transistors.
摘要翻译： 一种用于检测和补偿集成电路中的过程，电压和温度（PVT）变化的补偿电路和方法。 集成电路包括包括PMOS晶体管和NMOS晶体管的多个逻辑模块。 补偿电路包括产生第一和第二校准信号的第一和第二功能模块。 第一和第二校准信号用于补偿PMOS和NMOS晶体管中的PVT变化。
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公开(公告)号：US07009424B2
公开(公告)日：2006-03-07
申请号：US10865269
申请日：2004-06-10
IPC分类号： H03K19/0175
CPC分类号： H03K3/356113 , H03K3/356008
摘要： A level shifter that shifts a low supply voltage input signal to a higher supply voltage output signal includes a first unit and a second unit. The first unit is connected to a high power supply voltage source and receives the input signal. The first unit acts as a startup circuit such that when the level shifter is switched on, the first unit discharges an output node if the input signal is a logic low, and when the input signal is a logic high, the first unit charges a control node to the voltage of the input signal. The second unit is connected to the first unit and the high power supply voltage source, and also receives the input signal. The second unit shifts the input signal to the higher supply voltage output signal. The level shifter operates only at the high power supply voltage.
摘要翻译： 将低电源电压输入信号转换到较高电源电压输出信号的电平移位器包括第一单元和第二单元。 第一单元连接到高电源电压源并接收输入信号。 第一单元用作启动电路，使得当电平转换器接通时，如果输入信号为逻辑低，则第一单元放电输出节点，并且当输入信号为逻辑高时，第一单元对控制器 节点到输入信号的电压。 第二单元连接到第一单元和高电源电压源，并且还接收输入信号。 第二单元将输入信号移动到较高的电源电压输出信号。 电平转换器仅在高电源电压下工作。
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公开(公告)号：US07084698B2
公开(公告)日：2006-08-01
申请号：US10964793
申请日：2004-10-14
IPC分类号： G05F1/10
CPC分类号： G05F3/30
摘要： A band-gap reference circuit for generation of voltages and currents independent of process, voltage, and temperature includes three inversely proportional to absolute temperature (IPTAT) current generators. The IPTAT current generators generate three currents that are added to generate a current independent of the absolute temperature. The generated current is passed through a switched capacitor resistor to generate the band-gap reference voltage across the switched capacitor resistor.
摘要翻译： 用于产生独立于过程，电压和温度的电压和电流的带隙基准电路包括与绝对温度（IPTAT）电流发生器成反比的三个。 IPTAT电流发生器产生三个电流，其被添加以产生独立于绝对温度的电流。 所产生的电流通过开关电容电阻器，以产生开关电容电阻两端的带隙基准电压。
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公开(公告)号：US07061299B2
公开(公告)日：2006-06-13
申请号：US11199017
申请日：2005-08-08
IPC分类号： H03L5/00
CPC分类号： H03K3/356113
摘要： A bi-directional level shifter for shifting a digital signal from a low power supply voltage level to a high power supply voltage level and vice versa includes first and second I/O terminals, a first circuit operating at a low power supply voltage, and a second circuit operating at a high power supply voltage. The first circuit and the second circuit are connected to both of the I/O terminals. When a low voltage digital signal is applied at the first I/O terminal, a high voltage digital signal is generated at the second I/O terminal. Similarly, if a high voltage digital signal is applied at the second I/O terminal, a low voltage digital signal is generated at the first I/O terminal.
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公开(公告)号：US07132863B2
公开(公告)日：2006-11-07
申请号：US11098107
申请日：2005-04-04
IPC分类号： H03B19/00
CPC分类号： H03K5/00006
摘要： A digital clock frequency doubler for increasing an input frequency of an input clock signal includes an input block, and a generator block. The input block receives the input clock signal, and generates a pulse signal having an ON period equal to the input clock signal period. The generator block is coupled to the input block. The generator block receives the pulse signal and divides a period of the pulse signal by a period of a high frequency digital signal and then generates an output clock signal with an output frequency that is about two times the input frequency.
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公开(公告)号：US07187197B2
公开(公告)日：2007-03-06
申请号：US11098108
申请日：2005-04-04
申请人： Divya Tripathi , Qadeer A. Khan , Kulbhushan Misri
发明人： Divya Tripathi , Qadeer A. Khan , Kulbhushan Misri
IPC分类号： H03K5/12 , H03K19/094 , H03K3/00
CPC分类号： G06F13/4072 , H03K19/00361
摘要： A transmission line driver with slew rate control includes high and low side ramp generators for generating charge and discharge ramp signals, respectively, which are input to respective comparators and a pair of source follower transistors. A pair of additional transistors is connected to the pair of source follower transistors and a pair of staggered drivers is connected to the pair of additional transistors.
摘要翻译： 具有压摆率控制的传输线驱动器包括分别产生充放电斜坡信号的高低侧斜坡发生器，其分别输入到各个比较器和一对源极跟随器晶体管。 一对附加晶体管连接到一对源极跟随器晶体管，并且一对交错驱动器连接到该对附加晶体管。
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公开(公告)号：US07102410B2
公开(公告)日：2006-09-05
申请号：US10865363
申请日：2004-06-10
申请人： Qadeer A. Khan , Divya Tripathi , Kulbhushan Misri
发明人： Qadeer A. Khan , Divya Tripathi , Kulbhushan Misri
IPC分类号： H03L5/00
CPC分类号： H03F3/45183
摘要： A circuit for converting an input signal at a first voltage level to an output signal at a second voltage level uses only thin oxide transistors. The circuit includes a first unit operating at a first power supply voltage and receiving the input signal, a second unit operating at a second power supply voltage, and a third unit coupling the first unit to the second unit. The third unit enables generation of the output signal. Use of an extra fabrication mask for thick oxide transistors is avoided by using only thin oxide transistors.
摘要翻译： 用于将第一电压电平的输入信号转换为第二电压电平的输出信号的电路仅使用薄氧化物晶体管。 电路包括以第一电源电压工作并接收输入信号的第一单元，以第二电源电压工作的第二单元，以及将第一单元耦合到第二单元的第三单元。 第三单元能够产生输出信号。 通过仅使用薄氧化物晶体管避免了对厚氧化物晶体管使用额外的制造掩模。
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公开(公告)号：US20070018864A1
公开(公告)日：2007-01-25
申请号：US11490441
申请日：2006-07-20
申请人： Qadeer Khan , Sanjay Wadhwa , Divya Tripathi , Siddhartha Gk , Kulbhushan Misri
发明人： Qadeer Khan , Sanjay Wadhwa , Divya Tripathi , Siddhartha Gk , Kulbhushan Misri
IPC分类号： H03M1/06
CPC分类号： H03K19/00384
摘要： A compensation circuit and a method that compensates for process, voltage and temperature (PVT) variations in an integrated circuit that includes functional modules. The compensation circuit includes a signal generator, a first code generator, a second code generator, and a mapping module. The signal generator generates a first signal and a second signal depending on aligned process corner, voltage and temperature variations and skewed process corner variations respectively. The first code generator receives the first signal, and generates a first calibration code. The second code generator receives the second signal, and generates a second calibration code. The mapping module provides the first and second calibration codes for compensating for the aligned process corner, voltage and temperature variations and the skewed process corner variations associated with the functional modules respectively.
摘要翻译： 补偿电路和补偿包含功能模块的集成电路中的工艺，电压和温度（PVT）变化的方法。 补偿电路包括信号发生器，第一代码发生器，第二代码生成器和映射模块。 信号发生器分别根据对齐的过程角，电压和温度变化以及偏斜过程角变化产生第一信号和第二信号。 第一代码生成器接收第一信号，并产生第一校准码。 第二代码生成器接收第二信号，并产生第二校准码。 映射模块提供第一和第二校准码，用于分别补偿与功能模块相关联的对准过程角，电压和温度变化以及偏斜的过程角变化。
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