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1. 发明授权

US06798273B2 Linear power conversion circuit 有权
标题翻译：线性功率转换电路
公开(公告)号：US06798273B2
公开(公告)日：2004-09-28
申请号：US10247921
申请日：2002-09-20
申请人： Luan Le
发明人： Luan Le
IPC分类号： G06G712
CPC分类号： H03D7/1425 , H03D7/1408 , H03D7/1433 , H03D7/1491 , H03D2200/0033 , H03D2200/0043
摘要： The invention relates to a conversion circuit to convert a differential power signal II[1], II[2] into a differential output current IC[1], IC[2], said circuit including conversion means CONV and regulation means REG for the input impedance of the circuit connected to the conversion means CONV. The regulation means REG according to the invention include negative feedback means to control a regulating current IREG taken from each component of the power signal II[1], II[2] as a function of the values of the potentials V[1], V[2] at the inputs of the conversion circuit. The half-sum between the two potentials V[1], V[2] at the inputs of the circuit is advantageously used to guide the negative feedback which can advantageously be applied to the bases of the regulation transistors controlling the value of the regulating current. The invention permits mixers of great precision to be produced and can be used in any signal processing apparatus using power conversion circuits and, in particular, mixers.
摘要翻译：本发明涉及将差分功率信号II [1]，II [2]转换为差分输出电流IC [1]，IC [2]的转换电路，所述电路包括转换装置CONV和用于输入的调节装置REG 连接到转换装置CONV的电路的阻抗。根据本发明的调节装置REG包括负反馈装置，用于控制从功率信号II [1]，II [2]的每个分量获取的调节电流IREG作为电位V [1]，V [2]在转换电路的输入端。在电路输入端的两个电位V [1]，V [2]之间的半和有利地用于引导负反馈，这可以有利地应用于调节晶体管的基极控制调节电流的值本发明允许制造高精度的混合器，并且可以用于使用功率转换电路，特别是混频器的任何信号处理装置中。

2. 发明授权

US06639457B1 CMOS transconductor circuit with high linearity 有权
标题翻译：具有高线性度的CMOS跨导电路
公开(公告)号：US06639457B1
公开(公告)日：2003-10-28
申请号：US10206179
申请日：2002-07-29
申请人： Chih-Hong Lou
发明人： Chih-Hong Lou
IPC分类号： G06G712
CPC分类号： H03F1/3211 , H03F1/342 , H03F3/189 , H03F3/45197 , H03F2203/45356
摘要： The present invention provides a CMOS transconductor circuit that features high frequency with high linearity, and the circuit includes an transistor. The source electrode of this output transistor is for receiving a current source. The gate electrode of this output transistor is for receiving another current source, and the drain electrode of this output transistor is for outputting current. Also included within the present invention is resistance that's coupled to the source electrode of the output transistor. A local negative feedback loop used as a negative feedback to connect the gate electrode of the output transistor to the source electrode itself, which makes the transconductance of this CMOS transconductor circuit to become the reciprocal of the resistance.
摘要翻译：本发明提供了具有高线性度的高频的CMOS跨导电路，该电路包括晶体管。该输出晶体管的源极用于接收电流源。该输出晶体管的栅电极用于接收另一电流源，该输出晶体管的漏电极用于输出电流。本发明还包括耦合到输出晶体管的源电极的电阻。用作负反馈的局部负反馈回路将输出晶体管的栅电极连接到源电极本身，这使得该CMOS跨导电路的跨导成为电阻的倒数。

3. 发明授权

US06629121B1 Surface acoustic wave-matched filter and differential detector for demodulating spread spectrum signals 失效
标题翻译：用于解调扩频信号的表面声波匹配滤波器和差分检波器
公开(公告)号：US06629121B1
公开(公告)日：2003-09-30
申请号：US09413946
申请日：1999-10-07
申请人： Hiroyasu Ishikawa , Hideyuki Shinonaga
发明人： Hiroyasu Ishikawa , Hideyuki Shinonaga
IPC分类号： G06G712
CPC分类号： G06G7/195
摘要： A surface acoustic wave-matched filter is disclosed which comprises: an input transducer provided on a piezoelectric substrate surface; a first output transducer, that is, a forward output transducer encoded in correspondence to a pseudo-noise code sequence for spectrum spreading and provided on the substrate surface; and a second output transducer, that is, a backward output transducer encoded in correspondence to the pseudo-noise sequence code and provided on the substrate surface at the succeeding to the forward output transducer by the length of the pseudo-noise code sequence as viewed from the input transducer. With the use of the surface acoustic wave-matched filter, it is possible to realize a differential detector for demodulating spread spectrum signals.
摘要翻译：公开了一种表面声波匹配滤波器，其包括：设置在压电基片表面上的输入换能器; 第一输出换能器，即对应于用于频谱扩展的伪噪声码序列而被编码并提供在基板表面上的正向输出换能器; 以及第二输出换能器，即对应于伪噪声序列码编码的后向输出换能器，并且在正向输出换能器之后的基板表面上提供伪随机码序列的长度，如从输入传感器。通过使用表面声波匹配滤波器，可以实现用于解调扩频信号的差分检波器。

4. 发明授权

US06542020B2 Non-linear signal correction 有权
公开(公告)号：US06542020B2
公开(公告)日：2003-04-01
申请号：US10146311
申请日：2002-05-14
申请人： Michiel A. P. Pertus , Anthonius Bakker , Johan H. Huijsing
发明人： Michiel A. P. Pertus , Anthonius Bakker , Johan H. Huijsing
IPC分类号： G06G712
CPC分类号： H03M1/0621 , G01D3/02 , G01K7/01 , G05F3/30 , H03M1/12 , H03M3/324 , H03M3/458
摘要： Signal correction in a bipolar transistor circuit having a base-emitter voltage and a non-linear output signal corresponding to a detectable characteristic is improved by correcting non-linearity in the signal at third and/or higher-orders. According to an example embodiment of the present invention, the output of the transistor is corrected as a function of the base-emitter voltage, the non-linear output signal and a generated non-linearity. The generated non-linearity is adapted to cancel the non-linearity of the non-linear output signal when added thereto. Various implementations of the present invention are applicable to a variety of applications, each of which may have selected characteristics that are accounted for by the generated non-linearity, which is selectively adapted for each particular application. In this manner, third and higher-order corrections can be made, and the detection of characteristics such as data, temperature and other terms is improved.

5. 发明授权

US06492845B1 Low voltage current sense amplifier circuit 有权
标题翻译：低电压电流检测放大电路
公开(公告)号：US06492845B1
公开(公告)日：2002-12-10
申请号：US10034393
申请日：2001-12-27
申请人： Weiguo Ge , Congqing Xiong
发明人： Weiguo Ge , Congqing Xiong
IPC分类号： G06G712
CPC分类号： H03F1/22 , H03F1/223
摘要： A current sense amplifier including a transconductance amplifier to measure a current passing through a sense resistor and generate a reference current indicative of the measured current. A current mirror circuit is connected to the transconductance amplifier and receives the reference current for amplification to generate an amplified output current. A cascode circuit is connected serially to the current mirror circuit to boost an output impedance for the amplifier at the output of the generated amplified output current. The current mirror circuit and cascode circuit of the current sense amplifier are each formed from a pair of transistors sharing a common control node, with the transistors realized using with bipolar or MOS technology.
摘要翻译：一种包括跨导放大器的电流检测放大器，用于测量通过检测电阻器的电流并产生指示测量电流的参考电流。电流镜电路连接到跨导放大器，并接收用于放大的参考电流以产生放大的输出电流。共源共栅电路串联连接到电流镜电路，以在产生的放大输出电流的输出端提升放大器的输出阻抗。电流检测放大器的电流镜电路和共源共栅电路各自由共享公共控制节点的一对晶体管形成，晶体管采用双极或MOS技术实现。

6. 发明授权

US06456145B1 Non-linear signal correction 有权
标题翻译：非线性信号校正
公开(公告)号：US06456145B1
公开(公告)日：2002-09-24
申请号：US09672806
申请日：2000-09-28
申请人： Michiel A. P. Pertijs , Anthonius Bakker , Johan H. Huijsing
发明人： Michiel A. P. Pertijs , Anthonius Bakker , Johan H. Huijsing
IPC分类号： G06G712
CPC分类号： H03M1/0621 , G01D3/02 , G01K7/01 , G05F3/30 , H03M1/12 , H03M3/324 , H03M3/458
摘要： Signal correction in a bipolar transistor circuit having a base-emitter voltage and a non-linear output signal corresponding to a detectable characteristic is improved by correcting non-linearity in the signal at third and/or higher-orders. According to an example embodiment of the present invention, the output of the transistor circuit is corrected as a function of the base-emitter voltage, the non-linear output signal and a generated non-linearity. The generated non-linearity is adapted to cancel the non-linearity of the non-linear output signal. Various implementations of the present invention are applicable to a variety of applications, each of which may have selected characteristics that are accounted for by the generated non-linearity, which is selectively adapted for each particular application. In one implementation, the non-linearity is generated using two or more division circuits. In this manner, third and higher-order corrections can be made, and the detection of characteristics such as data, temperature and other terms is improved.
摘要翻译：通过校正第三和/或更高阶的信号中的非线性，改善了具有对应于可检测特性的基极 - 发射极电压和非线性输出信号的双极晶体管电路中的信号校正。根据本发明的示例性实施例，晶体管电路的输出被校正为基极 - 发射极电压，非线性输出信号和产生的非线性的函数。所产生的非线性适于消除非线性输出信号的非线性。本发明的各种实现可应用于各种应用，每种应用可以具有被生成的非线性所考虑的所选择的特征，其被选择性地适用于每个特定应用。在一个实现中，使用两个或更多个除法电路产生非线性。以这种方式，可以进行第三和更高级的校正，并且提高诸如数据，温度和其它项的特性的检测。

7. 发明授权

US06448848B1 Method of controlling common-mode in differential gm-C circuits 失效
标题翻译：差分gm-C电路中共模控制的方法
公开(公告)号：US06448848B1
公开(公告)日：2002-09-10
申请号：US09751435
申请日：2000-12-29
申请人： Michael W. Altmann
发明人： Michael W. Altmann
IPC分类号： G06G712
CPC分类号： H03F3/45946 , H03F3/45659 , H03F2203/45406 , H03F2203/45431 , H03F2203/45631 , H03H11/0433
摘要： An apparatus and method is disclosed wherein a first gm-C cell has an output, a second gm-C cell has an input coupled to the output of the first gm-C cell, and a feedback loop is coupled between the first and the second gm-C cell to control a CM voltage with respect to a reference.
摘要翻译：公开了一种装置和方法，其中第一gm-C单元具有输出，第二gm-C单元具有耦合到第一gm-C单元的输出的输入，并且反馈回路耦合在第一和第二 gm-C电池以控制相对于参考电压的CM电压。

8. 发明授权

US06271721B1 Common-base transistor amplifiers with linearity augmentation 失效
标题翻译：具有线性增强的共基极晶体管放大器
公开(公告)号：US06271721B1
公开(公告)日：2001-08-07
申请号：US09338850
申请日：1999-06-23
申请人： Christopher Trask
发明人： Christopher Trask
IPC分类号： G06G712
CPC分类号： H03F3/3066 , H03F1/347 , H03F3/19 , H03F3/26 , H03F2200/72
摘要： An augmented common-base transistor amplifier circuit is described, including an input terminal and an output terminal. The amplifier circuit also includes an augmentation circuit, connected from the emitter to the base of the amplifying transistor, which detects an error voltage at the transistor emitter, amplifies and inverts the error voltage, and then applies the amplified error voltage to the base of the amplifying transistor, for the purpose of reducing the emitter error voltage and thus linearizing the common-base amplifier. According to a further embodiment, a second transistor is used for amplifying the emitter error voltage, and a further embodiment uses a transformer for augmentation. Circuits are described for single-ended, push-pull, and complementary amplifiers.
摘要翻译：描述了增加的公共基极晶体管放大器电路，包括输入端子和输出端子。放大电路还包括从发射极连接到放大晶体管的基极的增强电路，其检测晶体管发射极处的误差电压，放大和反相误差电压，然后将放大的误差电压施加到放大晶体管，以减少发射极误差电压，从而使公共基极放大器线性化。根据另一实施例，第二晶体管用于放大发射极误差电压，另一实施例使用变压器进行增强。电路描述为单端，推挽和互补放大器。

9. 发明授权

US06259302B1 Gain control signal generator that tracks operating variations due to variations in manufacturing processes and operating conditions by tracking variations in DC biasing 有权
标题翻译：增益控制信号发生器，通过跟踪直流偏置的变化，跟踪由于制造工艺和工作条件的变化而引起的工作变化
公开(公告)号：US06259302B1
公开(公告)日：2001-07-10
申请号：US09176784
申请日：1998-10-22
申请人： Abhijit Phanse , Wong Hee
发明人： Abhijit Phanse , Wong Hee
IPC分类号： G06G712
CPC分类号： H04B3/145
摘要： A gain controller for a signal mixer in which consistent circuit gain is maintained by using transistors in the gain control and signal mixing stages with equal corresponding device dimensions and by using a differential gain control voltage with inverse and noninverse differential voltage phases which individually track variations in the dc bias currents used to power the gain control and signal mixing stages. This provides a gain factor which is independent of variations in circuit operation due to variations in circuit manufacturing processes and operating voltages and temperatures. Such a gain controller provides a self-compensating gain control signal which is based upon a variable gain control factor and tracks variations in circuit operation due to variations in circuit manufacturing processes and operating voltages and temperatures by tracking variations in the dc biasing used to power the gain control and signal mixing stages. Such tracking of the biasing by the gain control advantageously provides for an increased dynamic range.
摘要翻译：一种用于信号混合器的增益控制器，其中通过在增益控制和信号混合阶段中使用晶体管来维持一致的电路增益，具有相等的相应器件尺寸，并且通过使用差分增益控制电压，该差分增益控制电压具有反向和非反相差分电压相位，用于为增益控制和信号混合阶段供电的直流偏置电流。这提供了由于电路制造过程和工作电压和温度的变化而与电路操作的变化无关的增益因子。这种增益控制器提供基于可变增益控制因子的自补偿增益控制信号，并且通过跟踪用于为电源供电的直流偏置中的变化而跟踪由于电路制造过程和工作电压和温度的变化而跟踪电路操作中的变化增益控制和信号混合阶段。通过增益控制对偏置的这种跟踪有利地提供了增加的动态范围。

10. 发明授权

US06242966B1 Leakage current correcting circuit 有权
标题翻译：泄漏电流校正电路
公开(公告)号：US06242966B1
公开(公告)日：2001-06-05
申请号：US09380068
申请日：1999-08-25
申请人： Hiroyuki Shiotsuka
发明人： Hiroyuki Shiotsuka
IPC分类号： G06G712
CPC分类号： G01R31/025
摘要： A leakage current correcting circuit for reducing a leakage current flowing into an output of a circuit in a high impedance state. The configuration includes a correcting unit having a current detecting circuit for detecting a leakage current and outputting a current equal to a detected leakage current, and a current supply circuit for receiving the output current from the current detecting circuit as an input and causing a current for offsetting the leakage current flowing into the output of the circuit in a high impedance state.
摘要翻译：一种泄漏电流校正电路，用于减少流入高阻抗状态的电路的输出的漏电流。该配置包括：校正单元，具有用于检测泄漏电流并输出等于检测到的漏电流的电流的电流检测电路;以及电流供给电路，用于接收来自电流检测电路的输出电流作为输入，抵消在高阻抗状态下流入电路输出的漏电流。

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