公开(公告)号：US07046078B2

公开(公告)日：2006-05-16

申请号：US11126643

申请日：2005-05-11

申请人： Huy M. Nguyen ,  Benedict C. Lau ,  Adam Chuen-Huei Chou ,  Roxanne T. Vu

发明人： Huy M. Nguyen ,  Benedict C. Lau ,  Adam Chuen-Huei Chou ,  Roxanne T. Vu

IPC分类号： G05F1/10

CPC分类号： G06F1/26

摘要： An integrated circuit has one or more components that operate with reference to a distributed reference voltage. A reference voltage driver produces a compensated reference voltage, and the compensated reference voltage is distributed to form the distributed reference voltage at the components. Due to factors such as trace resistance and gate leakage, the distributed reference voltage is degraded relative to the compensated reference voltage. The reference voltage driver is responsive to feedback derived from the distributed reference voltage to adjust the compensated reference voltage so that the distributed reference voltage is approximately equal to a nominal reference voltage.

摘要翻译： 集成电路具有参考分布式参考电压工作的一个或多个组件。 参考电压驱动器产生补偿的参考电压，并且补偿的参考电压被分配以在组件处形成分布式参考电压。 由于迹线电阻和栅极泄漏等因素，分布式参考电压相对于补偿参考电压降低。 参考电压驱动器响应于从分布式参考电压得到的反馈，以调整补偿的参考电压，使得分布式参考电压近似等于标称参考电压。

公开(公告)号：US06384637B1

公开(公告)日：2002-05-07

申请号：US09588437

申请日：2000-06-06

申请人： Huy M. Nguyen ,  Benedict C. Lau

发明人： Huy M. Nguyen ,  Benedict C. Lau

IPC分类号： G01R1900

CPC分类号： H03K3/3565

摘要： A differential amplifier with reduced noise sensitivity enables the bus to operate more efficiently at higher data rates. The amplifier includes an input stage with a pair of adjustable resistive loads that alter the gain of the input stage. A differential output stage receives the output of the input stage and produces a pair of complementary output signals. These output signals are fed back to the adjustable resistive loads so that the gain of the input stage depends upon the levels of the output signals. The feedback is positive, so the voltage transfer characteristic of the inventive amplifier has different input thresholds for positive- and negative-going voltage signals.

摘要翻译： 具有降低噪声灵敏度的差分放大器使总线能够以更高的数据速率更有效地运行。 放大器包括具有改变输入级的增益的一对可调电阻负载的输入级。 差分输出级接收输入级的输出并产生一对互补输出信号。 这些输出信号被反馈到可调​​电阻负载，使得输入级的增益取决于输出信号的电平。 反馈是正的，因此本发明的放大器的电压传递特性对于正负电压信号具有不同的输入阈值。

公开(公告)号：US07199605B2

公开(公告)日：2007-04-03

申请号：US11142574

申请日：2005-06-01

申请人： Leung Yu ,  Roxanne T. Vu ,  Benedict C. Lau ,  Huy M. Nguyen ,  James A. Gasbarro

发明人： Leung Yu ,  Roxanne T. Vu ,  Benedict C. Lau ,  Huy M. Nguyen ,  James A. Gasbarro

IPC分类号： H03K19/003

CPC分类号： G11C7/1057 ,  G11C7/1048 ,  G11C7/1051 ,  G11C7/1069 ,  G11C7/1078 ,  G11C7/1084 ,  G11C29/02 ,  G11C29/022 ,  G11C29/028 ,  G11C2029/0401 ,  G11C2029/5004 ,  G11C2207/2254 ,  H03K19/00384

摘要： An apparatus is described having a feedback loop. The feedback loop has an output that approaches a steady state as a data line voltage approaches a reference voltage. The apparatus also includes a driving transistor that drives the data line. The driving transistor has an output impedance that is controlled by the feedback loop output, the feedback loop output keeps the driving transistor output impedance within a high output impedance region when the feedback loop output reaches the steady state.

摘要翻译： 描述了具有反馈回路的装置。 当数据线电压接近参考电压时，反馈回路具有接近稳态的输出。 该装置还包括驱动数据线的驱动晶体管。 驱动晶体管具有由反馈环路输出控制的输出阻抗，当反馈环路输出达到稳定状态时，反馈环路输出将驱动晶体管输出阻抗保持在高输出阻抗区域内。

公开(公告)号：US07135903B2

公开(公告)日：2006-11-14

申请号：US10374251

申请日：2003-02-25

申请人： Jade M. Kizer ,  Benedict C. Lau ,  Roxanne T. Vu ,  Huy M. Nguyen ,  Leung Yu ,  Adam Chuen-Huei Chou

发明人： Jade M. Kizer ,  Benedict C. Lau ,  Roxanne T. Vu ,  Huy M. Nguyen ,  Leung Yu ,  Adam Chuen-Huei Chou

IPC分类号： H03L7/06

CPC分类号： H03L7/0805 ,  G06F1/10 ,  H03L7/07 ,  H03L7/0814

摘要： A phase-jumping locked loop circuit. The locked loop circuit includes a plurality of differential amplifiers and a biasing circuit switchably coupled to each of the differential amplifiers. Each of the differential amplifiers has inputs to receive a respective pair of clock signals and outputs coupled to a common pair of output signal lines. The biasing circuit comprising a first plurality of biasing transistors coupled in parallel with one another and in series with a first set of the differential amplifiers, and a second plurality of biasing transistors coupled in parallel with one another and in series with a second set of the differential amplifiers.

摘要翻译： 一个跳相锁定环路。 锁定环电路包括多个差分放大器和可切换地耦合到每个差分放大器的偏置电路。 每个差分放大器具有输入以接收耦合到公共输出信号线对的相应的一对时钟信号和输出。 偏置电路包括彼此并联并与第一组差分放大器串联耦合的第一多个偏置晶体管，以及第二组多个偏置晶体管，其彼此并联耦合并与第二组 差分放大器。

公开(公告)号：US07002367B2

公开(公告)日：2006-02-21

申请号：US10349403

申请日：2003-01-21

申请人： Leung Yu ,  Roxanne T. Vu ,  Benedict C. Lau ,  Huy M. Nguyen ,  James A. Gasbarro

发明人： Leung Yu ,  Roxanne T. Vu ,  Benedict C. Lau ,  Huy M. Nguyen ,  James A. Gasbarro

IPC分类号： H03H5/00

CPC分类号： G11C7/1057 ,  G11C7/1048 ,  G11C7/1051 ,  G11C7/1069 ,  G11C7/1078 ,  G11C7/1084 ,  G11C29/02 ,  G11C29/022 ,  G11C29/028 ,  G11C2029/0401 ,  G11C2029/5004 ,  G11C2207/2254 ,  H03K19/00384

摘要： An apparatus is described having a feedback loop. The feedback loop has an output that approaches a steady state as a data line voltage approaches a reference voltage. The apparatus also includes a driving transistor that drives the data line. The driving transistor has an output impedance that is controlled by the feedback loop output, the feedback loop output keeps the driving transistor output impedance within a high output impedance region when the feedback loop output reaches the steady state.

公开(公告)号：US06330193B1

公开(公告)日：2001-12-11

申请号：US09539807

申请日：2000-03-31

申请人： Leung Yu ,  Roxanne T. Vu ,  Benedict C. Lau ,  Huy M. Nguyen ,  James A. Gasbarro

发明人： Leung Yu ,  Roxanne T. Vu ,  Benedict C. Lau ,  Huy M. Nguyen ,  James A. Gasbarro

IPC分类号： G11C700

CPC分类号： G11C7/1057 ,  G11C7/1051 ,  G11C7/1069 ,  G11C7/1078 ,  G11C7/1084

摘要： A method is described that compares two voltages, one of the voltages indicative of a data line voltage, a second of the voltages indicative of a reference voltage. An input signal is sent to each of a plurality of drivers where at least one of the drivers is coupled to the data line. The input signal is based upon the comparison. A bias is applied to a transistor from the input signal, the bias keeping the transistor in a high output impedance state when the two voltages are the same.

摘要翻译： 描述了一种方法，其比较两个电压，指示数据线电压的电压之一，表示参考电压的第二电压。 输入信号被发送到多个驱动器中的至少一个驱动器耦合到数据线的每个驱动器。 输入信号基于比较。 从输入信号向晶体管施加偏压，当两个电压相同时，偏置保持晶体管处于高输出阻抗状态。

公开(公告)号：US07932755B2

公开(公告)日：2011-04-26

申请号：US11620309

申请日：2007-01-05

申请人： Huy M. Nguyen ,  Benedict C. Lau ,  Leung Yu ,  Jade M. Kizer

发明人： Huy M. Nguyen ,  Benedict C. Lau ,  Leung Yu ,  Jade M. Kizer

IPC分类号： H03L7/06

CPC分类号： G06F1/10 ,  G06F1/12 ,  H03L7/00

摘要： A circuit and method for synchronized clocking of components such as registers. Registers are clocked by individual component clock signals having the same frequency but potentially different phases due to differing propagation delays. Separate component clock signals are received by registers are brought into phase by evaluating the phases of the component clock signals at the registers, and synchronizing the component clock signal of each register to that of the previous register in a sequence.

摘要翻译： 用于同步计时器件的电路和方法，例如寄存器。 由于不同的传播延迟，寄存器由具有相同频率但潜在不同相位的各个组件时钟信号计时。 通过对寄存器中的分量时钟信号的相位进行评估，使寄存器接收到的单独的分量时钟信号变为相位，并且将序列中的每个寄存器的分量时钟信号与先前寄存器的分量时钟信号同步。

公开(公告)号：US07099786B2

公开(公告)日：2006-08-29

申请号：US11064925

申请日：2005-02-24

申请人： Huy M. Nguyen ,  Benedict C. Lau

发明人： Huy M. Nguyen ,  Benedict C. Lau

IPC分类号： G01R21/06

CPC分类号： G06F1/26

摘要： A receiving unit may implement voltage compensation using a parameters table, an analog calibration component, and/or a digital calibration component. In certain implementation(s), an integrated circuit may include a voltage driver that modifies a supplied compensated voltage based on a feedback signal. The feedback signal may be produced responsive to a distributed voltage version of the compensated voltage, to a received data signal, and to a comparison involving an expected data value. In other implementation(s), a parameters table may be initialized by storing calibration values in entries in association with respective multiple identifications of multiple external points. In still other implementation(s), a particular calibration value of multiple calibration values may be ascertained, with the particular calibration value associated with a particular external point; the particular calibration value may be activated; and data from the particular external point may be received using the particular calibration value. Other implementations are also described.

公开(公告)号：US06897713B1

公开(公告)日：2005-05-24

申请号：US10076666

申请日：2002-02-14

申请人： Huy M. Nguyen ,  Benedict C. Lau ,  Adam Chuen-Huei Chou ,  Roxanne T. Vu

发明人： Huy M. Nguyen ,  Benedict C. Lau ,  Adam Chuen-Huei Chou ,  Roxanne T. Vu

IPC分类号： G06F1/26 ,  G05F1/10

CPC分类号： G06F1/26

摘要： An integrated circuit has one or more components that operate with reference to a distributed reference voltage. A reference voltage driver produces a compensated reference voltage, and the compensated reference voltage is distributed to form the distributed reference voltage at the components. Due to factors such as trace resistance and gate leakage, the distributed reference voltage is degraded relative to the compensated reference voltage. The reference voltage driver is responsive to feedback derived from the distributed reference voltage to adjust the compensated reference voltage so that the distributed reference voltage is approximately equal to a nominal reference voltage.

摘要翻译： 集成电路具有参考分布式参考电压工作的一个或多个组件。 参考电压驱动器产生补偿的参考电压，并且补偿的参考电压被分配以在组件处形成分布式参考电压。 由于迹线电阻和栅极泄漏等因素，分布式参考电压相对于补偿参考电压降低。 参考电压驱动器响应于从分布式参考电压得到的反馈，以调整补偿的参考电压，使得分布式参考电压近似等于标称参考电压。

公开(公告)号：US06876248B2

公开(公告)日：2005-04-05

申请号：US10157593

申请日：2002-05-28

申请人： Huy M. Nguyen ,  Benedict C. Lau

发明人： Huy M. Nguyen ,  Benedict C. Lau

IPC分类号： G06F1/26 ,  G05F1/10 ,  G05F3/02

CPC分类号： G06F1/26

摘要： A receiving unit may implement voltage compensation using a parameters table, an analog calibration component, and/or a digital calibration component. In certain implementation(s), an integrated circuit may include a voltage driver that modifies a supplied compensated voltage based on a feedback signal. The feedback signal may be produced responsive to a distributed voltage version of the compensated voltage, to a received data signal, and to a comparison involving an expected data value. In other implementation(s), a parameters table may be initialized by storing calibration values in entries in association with respective multiple identifications of multiple external points. In still other implementation(s), a particular calibration value of multiple calibration values may be ascertained, with the particular calibration value associated with a particular external point; the particular calibration value may be activated; and data from the particular external point may be received using the particular calibration value. Other implementations are also described.

摘要翻译： 接收单元可以使用参数表，模拟校准组件和/或数字校准组件实现电压补偿。 在某些实施方案中，集成电路可以包括基于反馈信号修改所提供的补偿电压的电压驱动器。 反馈信号可以响应于补偿电压的分布式电压版本，接收的数据信号以及涉及预期数据值的比较来产生。 在其他实现中，可以通过将校准值存储在与多个外部点的相应多个标识相关联的条目中来初始化参数表。 在另外的实施方式中，可以确定具有与特定外部点相关联的特定校准值的多个校准值的特定校准值; 可以激活特定的校准值; 并且可以使用特定校准值来接收来自特定外部点的数据。 还描述了其他实现。