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    SUPER-SYMMETRIC MULTIPLIER
    1.
    发明申请
    SUPER-SYMMETRIC MULTIPLIER 审中-公开
    超对称乘法器

    公开(公告)号：WO2008128223A1

    公开(公告)日：2008-10-23

    申请号：PCT/US2008/060341

    申请日：2008-04-15

    Applicant: ANALOG DEVICES, INC. ,  GILBERT, Barrie

    Inventor： GILBERT, Barrie

    IPC: G06G7/44

    CPC classification number: G06G7/16

    Abstract: A circuit includes a multi-tanh cell having a common-emitter node to receive a bias current, and an extra transistor coupled to the common-emitter node to dynamically divert a portion of the bias current from the multi-tanh cell. The circuit may be arranged as a multiplier with an input network arranged to apply two or more input signals to the multi-tanh cell. A second multi-tanh cell with an extra transistor may be arranged in a feedback loop where the outputs of the first and second multi-tanh cells are coupled together at an integrating node. A buffer drives the final output and feedback cell to cancel nonlinearities in the multiplier cells.

    Abstract translation: 电路包括具有用于接收偏置电流的共射极节点的多电容单元，以及耦合到共发射极节点的额外晶体管，以动态地偏转来自多tanh电池的偏置电流的一部分。 电路可以被布置为乘法器，其中输入网络被布置成将多个输入信号施加到多tanh小区。 可以在反馈环路中布置具有额外晶体管的第二多层单元，其中第一和第二多层单元的输出在积分节点处耦合在一起。 缓冲器驱动最终输出和反馈单元以消除乘法器单元中的非线性。

    VARIABLE ATTENUATION SYSTEM HAVING CONTINUOUS INPUT STEERING
    2.
    发明申请
    VARIABLE ATTENUATION SYSTEM HAVING CONTINUOUS INPUT STEERING 审中-公开
    具有连续输入转向的可变衰减系统

    公开(公告)号：WO2005008904A2

    公开(公告)日：2005-01-27

    申请号：PCT/US2004/021948

    申请日：2004-07-07

    Applicant: ANALOG DEVICES, INC. ,  GILBERT, Barrie

    Inventor： GILBERT, Barrie

    IPC: H04B

    CPC classification number: H03G1/0035 ,  H03F1/3211 ,  H03F3/45089

    Abstract: A variable attenuation system includes a steering core that continuously steers a signal to an attenuator having multiple inputs. An embodiment having an attenuator constructed from discrete components continuously interpolates a signal between the individual inputs of the attenuator. Continuous interpolation between discrete inputs can also be used with attenuators having continuous structures. A fully integrated embodiment achieves continuous input steering by moving a carrier domain along a continuous attenuator. A separate output stage utilizes adaptive biasing to reduce unnecessary current consumption.

    Abstract translation: 可变衰减系统包括转向芯，其连续地将信号转向具有多个输入的衰减器。 具有由分立组件构成的衰减器的实施例在衰减器的各个输入之间连续内插信号。 离散输入之间的连续插值也可以与具有连续结构的衰减器一起使用。 完全集成的实施例通过沿着连续衰减器移动载波域来实现连续输入转向。 单独的输出级利用自适应偏置来减少不必要的电流消耗。

    LOGARITHMIC CIRCUITS
    3.
    发明申请
    LOGARITHMIC CIRCUITS 审中-公开
    对数电路

    公开(公告)号：WO2011137358A1

    公开(公告)日：2011-11-03

    申请号：PCT/US2011/034594

    申请日：2011-04-29

    Applicant: ANALOG DEVICES, INC. ,  GILBERT, Barrie

    Inventor： GILBERT, Barrie

    IPC: G06G7/24

    CPC classification number: G06G7/24

    Abstract: An embodiment of a logarithmic circuit may include a logging transistor, a guard circuit arranged to force an input current into an input terminal of the logging transistor, and a positioning circuit arranged to maintain a voltage of the logging transistor. The guard and positioning circuits may include first and second feedback loops, respectively. Another embodiment of a logarithmic circuit may include a logging transistor arranged to generate a logarithmic output in response to an input current, and a feedback loop arranged to provide adaptive compensation to the logging transistor. The feedback loop may be arranged to provide compensation in response to the magnitude of the input current. Another embodiment of a logarithmic circuit may include first and second logging transistors having collectors arranged to receive input currents, and first and second feedback amplifier arranged to drive emitters of the logging transistors.

    Abstract translation: 对数电路的实施例可以包括测井晶体管，保护电路，其布置成迫使输入电流进入测井晶体管的输入端;以及定位电路，其布置成保持测井晶体管的电压。 保护和定位电路可以分别包括第一和第二反馈回路。 对数电路的另一实施例可以包括布置成响应于输入电流产生对数输出的测井晶体管，以及布置成向测井晶体管提供自适应补偿的反馈环路。 反馈回路可以被布置为响应于输入电流的大小来提供补偿。 对数电路的另一实施例可以包括具有布置成接收输入电流的集电极的第一和第二测井晶体管，以及布置成驱动测井晶体管的发射极的第一和第二反馈放大器。

    DIFFERENCE AMPLIFIER EMPLOYING INPUT ATTENUATOR NETWORK AND POWERED BY A SINGLE POLARITY POWER SUPPLY
    5.
    发明申请
    DIFFERENCE AMPLIFIER EMPLOYING INPUT ATTENUATOR NETWORK AND POWERED BY A SINGLE POLARITY POWER SUPPLY 审中-公开
    使用输入衰减器网络并通过单极化电源供电的差分放大器

    公开(公告)号：WO1991007816A1

    公开(公告)日：1991-05-30

    申请号：PCT/US1990006793

    申请日：1990-11-20

    Applicant: ANALOG DEVICES, INC.

    Inventor： ANALOG DEVICES, INC. ,  GILBERT, Barrie

    IPC: H03F03/45

    CPC classification number: H03F3/45479

    Abstract: The apparatus includes an operational amplifier (56) which has inverting (72) and non-inverting (70) inputs and an output (74) that is a function of the voltage at the inverting and non-inverting inputs (72-70). An attenuator network (54) is connected to the operational amplifier (56). The attenuator network (54) includes circuitry for reducing a voltage of a first value at the inputs (62, 64) of the attenuator network (54) to a voltage that is a fraction of the first value at the output of the attenuator network (54) which voltage is then transmitted to the operational amplifier (56) inputs (70, 72). The attenuator network (54) includes additional circuitry (66) for reducing a common-mode feed-through voltage of a second value at the inputs (62, 64) ot the attenuator network (54) to a common-mode feed-through voltage that is a fraction of the second voltage at the output of the operational amplifier (56).

    MICROWAVE VOLTMETER USING FULLY-LINEARIZED DIODE DETECTOR
    6.
    发明申请
    MICROWAVE VOLTMETER USING FULLY-LINEARIZED DIODE DETECTOR 审中-公开
    使用全直线二极管检测器的微波电压表

    公开(公告)号：WO2015048645A1

    公开(公告)日：2015-04-02

    申请号：PCT/US2014/058046

    申请日：2014-09-29

    Applicant: ANALOG DEVICES, INC.

    Inventor： GILBERT, Barrie

    IPC: H03D5/00

    CPC classification number: G01R21/10 ,  G01R21/06

    Abstract: A radio frequency diode detector has a set of diodes having a differential voltage output, and a current source electrically coupled to the ring of diodes, the current source coupled to provide a forward bias current. This is followed by nonlinear signal processing to create an overall linear detector suitable for use in microwave power measurement.

    Abstract translation: 射频二极管检测器具有一组具有差分电压输出的二极管，以及电耦合到二极管环的电流源，电流源耦合以提供正向偏置电流。 接下来是非线性信号处理，以产生适用于微波功率测量的整体线性检测器。

    CONTROL SYSTEM WITH SELECTIVE OPEN-LOOP OPERATION
    7.
    发明申请
    CONTROL SYSTEM WITH SELECTIVE OPEN-LOOP OPERATION 审中-公开
    具有选择性的开环操作的控制系统

    公开(公告)号：WO2004112261A2

    公开(公告)日：2004-12-23

    申请号：PCT/US2004/016447

    申请日：2004-05-24

    Applicant: ANALOG DEVICES, INC.

    Inventor： GILBERT, Barrie

    IPC: H04B

    CPC classification number: H03G3/3047

    Abstract: A control system may be selectively operated in open loop mode, for example, during data bursts. In a power control system, the transmitted power may be selectively held at a constant level, for example, at the end of a ramp period. The forward path gain of a control system may be varied in an inverse-function manner ahead of an integrator. The slope of a measurement signal from a detector may be made to have a complementary polarity.

    Abstract translation: 控制系统可以选择性地以开环模式操作，例如在数据突发期间。 在功率控制系统中，发射功率可以选择性地保持在恒定电平，例如在斜坡周期结束时。 控制系统的正向通路增益可以在积分器之前以反功能方式变化。 可以使来自检测器的测量信号的斜率具有互补极性。

    LOGARITHMIC AMPLIFIER
    8.
    发明申请
    LOGARITHMIC AMPLIFIER 审中-公开
    对数放大器

    公开(公告)号：WO1990011645A1

    公开(公告)日：1990-10-04

    申请号：PCT/US1990001530

    申请日：1990-03-21

    Applicant: ANALOG DEVICES INC.

    Inventor： ANALOG DEVICES INC. ,  GILBERT, Barrie

    IPC: H03G07/00

    CPC classification number: H03G7/001

    Abstract: A multi-stage logarithmic converter of the 'successive-detection' or 'progressive-compression' type including means providing an accurate, temperature-stabilized logarithmic transfer function. The gain stages are DC-coupled throughout, though each also employs a demodulator comprising a full-wave rectifier, allowing operation in both baseband and demodulating modes. The signal path is differential and is balanced, including the demodulators. Each gain stage is based on a differential amplifier, or 'long-tail pair' operated in an open-loop mode and biased by a tail current generator which supplies a tail current that is both proportional to absolute temperature and compensated automatically for effects of finite transistor beta and base and emitter resistances. The demodulators are biased by a very low offset voltage which also is proportional to absolute temperature. The log intercept is temperature-stabilized by either employing a PTAT attenuator ahead of the complete amplification system or by introducing at the output node (a current summing junction) a current which varies with temperature in such a way as to offset intercept movement which otherwise would be generated.

    HYBRID TRANSLINEAR AMPLIFIER
    9.
    发明申请
    HYBRID TRANSLINEAR AMPLIFIER 审中-公开
    混合线路放大器

    公开(公告)号：WO2015130888A1

    公开(公告)日：2015-09-03

    申请号：PCT/US2015/017661

    申请日：2015-02-26

    Applicant: ANALOG DEVICES, INC.

    Inventor： GILBERT, Barrie

    IPC: H03F3/42 ,  H03F3/45 ,  H03F1/26

    CPC classification number: H03G3/007 ,  H03F1/26 ,  H03F3/04 ,  H03F3/45085 ,  H03F3/45089 ,  H03F2200/171 ,  H03F2200/261 ,  H03F2203/45392

    Abstract: A hybrid, translinear amplifier has at least one gain stage including first and second gain transistors, at least a first load transistor electrically coupled to the first gain transistor and at least a second load transistor electrically coupled to the second gain transistor, and load resistors electrically coupled to the load transistors. A hybrid, translinear amplifier with selectable gain has a first hybrid, translinear amplifier cell having at least first and second load transistors, each load transistor having a load resistor, at least one additional hybrid, translinear amplifier cell having at least third, fourth, fifth and sixth load transistors, each load transistor having a load resistor, at least two switches electrically coupled to the amplifier cells to allow selection of one of the amplifier cells, and a differential output signal having a gain corresponding to a selected amplifier cell.

    Abstract translation: 混合式跨线性放大器具有至少一个包括第一和第二增益晶体管的增益级，至少第一负载晶体管电耦合到第一增益晶体管和至少第二负载晶体管，电耦合到第二增益晶体管，以及负载电阻器 耦合到负载晶体管。 具有可选择增益的混合式，跨线性放大器具有至少第一和第二负载晶体管的第一混合式跨线性放大器单元，每个负载晶体管具有负载电阻器，至少一个额外的混合式跨线性放大器单元，具有至少第三，第四，第五 和第六负载晶体管，每个负载晶体管具有负载电阻器，电耦合到放大器单元的至少两个开关，以允许选择放大器单元之一，以及具有对应于所选放大器单元的增益的差分输出信号。

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