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    • 1. 发明授权
    • Single-input/dual-output sense amplifier
    • 单输入/双输出读出放大器
    • US06501302B1
    • 2002-12-31
    • US09977770
    • 2001-10-15
    • Kyung T. LeeJason M. Hart
    • Kyung T. LeeJason M. Hart
    • G01R1500
    • H03K5/151G11C7/065
    • A single-input/dual output sense amplifier includes cross-coupled transistors connected to a reference voltage; a first input transistor and a second input transistor connected to the cross-coupled transistors, wherein the first input transistor is coupled to a single input bit-line and the second input transistor is coupled to a reference voltage; an inverter receiving the input bit-line signal and outputting a complement of the input bit-line signal; a control circuit coupled to the second input transistor and receiving the complement of the input bit-line signal, wherein the cross-coupled transistors produce dual differential outputs. A method of producing dual differential output signals from a single input signal includes receiving a single input bit-line signal; inverting the received single input bit-line signal to produce the complement of the received single input bit-line signal; controlling the charging and discharging of a reference node based on the complement of the received input bit-line signal; and outputting dual differential output signals based on the single input bit-line signal and the reference node.
    • 单输入/双输出读出放大器包括连接到参考电压的交叉耦合晶体管; 连接到交叉耦合晶体管的第一输入晶体管和第二输入晶体管,其中所述第一输入晶体管耦合到单个输入位线,并且所述第二输入晶体管耦合到参考电压; 接收输入位线信号并输出​​输入位线信号的补码的逆变器; 耦合到第二输入晶体管并接收输入位线信号的补码的控制电路,其中交叉耦合晶体管产生双差分输出。 从单个输入信号产生双差分输出信号的方法包括接收单个输入位线信号; 将所接收的单输入位线信号反相以产生所接收的单输入位线信号的补码; 基于所接收的输入位线信号的补码来控制参考节点的充电和放电; 并基于单输入位线信号和参考节点输出双差分输出信号。
    • 2. 发明授权
    • High crest factor rms measurement method
    • 高峰因子有效值测量方法
    • US06392402B1
    • 2002-05-21
    • US09126987
    • 1998-07-30
    • Steven Dennis Swift
    • Steven Dennis Swift
    • G01R1500
    • G01R19/02G01R15/125
    • An rms converter accommodates incoming signals of large crest factor by using an amplifier having a transfer function of non-uniform slope. The amplifier has a lower gain for larger signals. The output of the amplifier is converted to digital voltage values. The non-uniform gain of the amplifier is compensated for in digital calculations of the rms value. The invention produces accurate rms measurements by accurately measuring lower incoming signal voltages while still accommodating high peak voltages. The invention also reduces the dynamic range requirements for the analog to digital converter.
    • 有效值转换器通过使用具有不均匀斜率的传递函数的放大器来适应大波峰因数的输入信号。 放大器对于较大的信号具有较低的增益。 放大器的输出转换为数字电压值。 在均方根值的数字计算中补偿放大器的不均匀增益。 本发明通过在仍然容纳高峰值电压的同时精确地测量较低的输入信号电压来产生精确的有效值测量 本发明还降低了模数转换器的动态范围要求。
    • 5. 发明授权
    • Dual mode diode power sensor with square law and linear operating regions
    • 具有平方律和线性工作区域的双模二极管功率传感器
    • US06291984B1
    • 2001-09-18
    • US09470149
    • 1999-12-22
    • Vincent W. C. WongChris TurlWilliam W. OldfieldKenneth C. Harvey
    • Vincent W. C. WongChris TurlWilliam W. OldfieldKenneth C. Harvey
    • G01R1500
    • G01R21/10G01R21/12
    • A dual mode power meter provides a first operation mode in the square law operating range of the diode, and a second mode in the square law region as well as the transition and linear operating ranges of the diode. The power meter includes multiple diodes. A manifold made up of power dividers distributes a signal input to the power meter to the diodes. A different attenuation is provided to each diode so that the square law operating range for each diode covers a different power range. By selecting the appropriate diode output for power measurements in the first mode, the overall square law operating range for the power meter will be greater than a power meter using a single diode. The power meter further includes a memory map of voltage vs. power in the square law, transition and linear regions of a diode measured for an unmodulated CW input for the second operation mode. The map of voltage vs. power enables power to be measured faster in the second mode for unmodulated CW signals provided to the power meter which are beyond the square law operating region for the diodes of the power meter.
    • 双模功率计在二极管的平方律工作范围内提供第一种工作模式,在平方律区域提供第二种模式以及二极管的过渡和线性工作范围。 功率计包括多个二极管。 由功率分配器组成的歧管将功率计的信号输入分配给二极管。 每个二极管提供不同的衰减,使得每个二极管的平方律工作范围覆盖不同的功率范围。 通过在第一种模式下选择合适的功率测量二极管输出,功率计的总平方律工作范围将大于使用单个二极管的功率计。 功率计还包括对于第二操作模式的未调制的CW输入测量的二极管的平方律,二极管的过渡和线性区域中的电压vs.功率的存储器映射。 电压与功率的映射使得能够在第二模式下对提供给功率计的未调制CW信号进行测量,这些信号超出功率计二极管的平方律运算区域。
    • 8. 发明授权
    • Sense-amplifying circuit
    • 感应放大电路
    • US06426657B1
    • 2002-07-30
    • US09417560
    • 1999-10-14
    • Hisatada MiyatakeYotaro MoriMasahiro Tanaka
    • Hisatada MiyatakeYotaro MoriMasahiro Tanaka
    • G01R1500
    • G11C15/00G11C7/065G11C7/067G11C15/04
    • The present invention provides a single-ended signal detection circuit (sense-amplifier) which exhibits a little power consumption and performs a high speed operation. A sense-amplifying circuit (100) detects a signal on one signal line to amplify the detected signal. A sensing switch composed of first and second switches (13, 14), each of which is connected to a source terminal of the sense-amplifying circuit and to a constant current source (15), the first switch being connected to a signal line (10) and the second switch being connected to a reference potential (Vref), wherein a driving force of the first switch is larger than that of the second switch.
    • 本发明提供了一种单端信号检测电路(感测放大器),其具有小的功耗并执行高速操作。 感测放大电路(100)检测一条信号线上的信号以放大检测到的信号。 一种由第一和第二开关(13,14)组成的感测开关,每个开关连接到感测放大电路的源极端和恒定电流源(15),第一开关连接到信号线 10),第二开关连接到参考电位(Vref),其中第一开关的驱动力大于第二开关的驱动力。
    • 9. 发明授权
    • Method and system for determining potential fields
    • 确定潜在领域的方法和系统
    • US06405143B1
    • 2002-06-11
    • US09373574
    • 1999-08-13
    • Hoan Huu PhamArokia Nathan
    • Hoan Huu PhamArokia Nathan
    • G01R1500
    • G06F17/5018
    • A method for determing the potential in a three-dimensional domain containing a source domain of source particles and a target domain of target particles involves assigning the source particles into source particle clusters and the target particles into target particle clusters, assigning a collection point to each of the clusters, and determing the inverse distance from each particle to the collection point of its respective cluster. A pseudo-particle representative of each particle within the cluster is defined at the collection point of each cluster in accordance with the determined inverse distances and the charge-like measure of each of the particles. The potential, and/or its gradient, at any of the target particles is then determined from the position and the charge-like measure of the associated pseudo-particle.
    • 用于确定含有源粒子的源区域和靶粒子的靶区域的三维域中的势的方法包括将源粒子分配到源粒子簇中,将目标粒子分配到目标粒子簇中,将收集点分配给每个 并且确定从每个粒子到其相应簇的收集点的反向距离。 根据确定的每个颗粒的反向距离和电荷样测量,在每个簇的收集点处定义代表簇内每个颗粒的伪粒子。 然后,从相关联的伪粒子的位置和电荷样测量中确定任何靶粒子的电势和/或其梯度。