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1. 发明授权

US09674016B2 Up-conversion mixer having a reduced third order harmonic 有权
公开(公告)号：US09674016B2
公开(公告)日：2017-06-06
申请号：US14641744
申请日：2015-03-09
申请人： TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
发明人： Huan-Neng Chen , Ying-Ta Lu , Mei-Show Chen , Chewn-Pu Jou
IPC分类号： G06G7/44 , H04L27/06 , H03D7/14 , H04L27/04 , G06G7/16
CPC分类号： H04L27/06 , G06G7/16 , H03D7/1441 , H03D7/1458 , H03D7/1491 , H03D2200/0019 , H04L27/04
摘要： An up-conversion mixer includes a mixer cell having at least one output node configured to generate an output. The up-conversion mixer further includes an input stage coupled to the mixer cell, the input stage configured to receive an input signal and to produce a local minimum in a third order harmonic of the output with respect to an input power. The up-conversion mixer further includes a power supply input configured to receive a power supply voltage and a ground, and a maximum number of transistor stages between the power supply input and the ground is two.

2. 发明授权

US07746151B2 Variable gain mixer 有权
标题翻译：可变增益混频器
公开(公告)号：US07746151B2
公开(公告)日：2010-06-29
申请号：US11993001
申请日：2006-06-30
申请人： Sung Ho Beck
发明人： Sung Ho Beck
IPC分类号： G06G7/44
CPC分类号： H03D7/12 , H03D7/1433 , H03D7/1458 , H03D2200/0019 , H03D2200/0025 , H03D2200/0027 , H03D2200/0043 , H03D2200/0088
摘要： The mixer includes mixers constructed with variable gain amplifiers having two transistor pairs Qp+/Qp− and Qn+/Qn− to have a predetermined gain by using LO+ and LO− signals; and LO bias circuits connected to have bias voltages different from each other with respect to the LO+ and LO− signals of the mixers and share an input signal.
摘要翻译：混频器包括由具有两个晶体管对Qp + / Qp-和Qn + / Qn-的可变增益放大器构成的混频器，通过使用LO +和LO-信号具有预定的增益; 并且LO偏置电路被连接以相对于混频器的LO +和LO-信号彼此不同的偏置电压并且共享输入信号。

3. 发明授权

US3500020A Minimum induced drag airfoil body 失效
标题翻译：最小诱导行星飞行器体
公开(公告)号：US3500020A
公开(公告)日：1970-03-10
申请号：US3500020D
申请日：1965-09-30
申请人： NASA
发明人： CONE CLARENCE D JR
IPC分类号： G06G7/44 , G06K15/00
CPC分类号： G06G7/44

4. 发明授权

US06982588B1 Inverse function method for semiconductor mixer linearity enhancement 有权
标题翻译：半导体混合器线性增强的逆函数法
公开(公告)号：US06982588B1
公开(公告)日：2006-01-03
申请号：US10869680
申请日：2004-06-16
申请人： Heng-Chih Lin , Chien-Chung Chen , Ranjit Gharpurey
发明人： Heng-Chih Lin , Chien-Chung Chen , Ranjit Gharpurey
IPC分类号： G06G7/44 , G06G7/16
CPC分类号： H03D7/1441 , H03D7/1408 , H03D7/1458 , H03D7/1491
摘要： The mixer circuit includes a differential rf input driver; a differential local oscillator input circuit coupled to the differential rf input driver; a non-linear load coupled to the differential local oscillator input circuit wherein the non-linear load compensates for non-linearity of the differential rf input driver. The non-linear load has a V-I (voltage-current) transfer function the inverse of the input driver. This improves the mixer linearity without sacrificing the Gain or Noise Figure.
摘要翻译：混频器电路包括差分rf输入驱动器; 耦合到差分rf输入驱动器的差分本地振荡器输入电路; 耦合到差分本地振荡器输入电路的非线性负载，其中非线性负载补偿差分rf输入驱动器的非线性。非线性负载具有V-I（电压 - 电流）传递函数，与输入驱动器相反。这可以提高混频器的线性度，而不会牺牲增益或噪声系数。

5. 发明授权

US3044706A Apparatus for evaluating algebraic functions 失效
标题翻译：用于评估代数函数的装置
公开(公告)号：US3044706A
公开(公告)日：1962-07-17
申请号：US50352855
申请日：1955-04-25
申请人： ELECTRO MEASUREMENTS INC
发明人： MORGAN MERLE L
IPC分类号： G06G7/44
CPC分类号： G06G7/44

6. 发明授权

US3035772A Civil defense training equipment 失效
标题翻译：民防训练器材
公开(公告)号：US3035772A
公开(公告)日：1962-05-22
申请号：US63239657
申请日：1957-01-03
申请人： PLESSEY CO LTD
发明人： VERNON HOUGH GEORGE , RHEAD CRONIN RICHARD HARRY , JOHN COX RAYMOND
IPC分类号： F41A33/00 , G01V3/00 , G06G7/44 , G06G7/54 , G09B9/00
CPC分类号： G09B9/00 , F41A33/00 , G01V3/00 , G06G7/44 , G06G7/54

7. 发明授权

US08963612B1 Multiple mode RF circuit 有权
标题翻译：多模RF电路
公开(公告)号：US08963612B1
公开(公告)日：2015-02-24
申请号：US14030411
申请日：2013-09-18
申请人： Russell D. Wyse , Michael L. Hageman
发明人： Russell D. Wyse , Michael L. Hageman
IPC分类号： G06G7/12 , G06G7/44 , H03D7/14
CPC分类号： H03D7/1491 , H03D7/1433 , H03D7/1458
摘要： A multi-mode circuit can switch an output section between mixer and amplifier modes, with or without variable gain, to create a variable gain amplifier or a variable gain mixer or route an input signal by adjusting a bias current. An input section is controlled by a bias section and connected to the output section. The output section includes a first base-coupled transistor pair adapted to receive an input signal at emitters of the first base-coupled transistor pair, receive a bias signal at bases of the first base-coupled transistor pair, and provide an output signal at collectors of the first base-coupled transistor pair.
摘要翻译：多模电路可以在具有或不具有可变增益的混频器和放大器模式之间切换输出部分，以通过调整偏置电流来创建可变增益放大器或可变增益混频器或路由输入信号。输入部分由偏置部分控制并连接到输出部分。输出部分包括第一基极耦合晶体管对，其适于在第一基极耦合晶体管对的发射极处接收输入信号，在第一基极耦合晶体管对的基极处接收偏置信号，并在集电极处提供输出信号的第一基极耦合晶体管对。

8. 发明授权

US3624659A Automated equipotential plotter 失效
标题翻译：自动化液晶显示器
公开(公告)号：US3624659A
公开(公告)日：1971-11-30
申请号：US3624659D
申请日：1969-12-09
申请人： NASA
发明人： BUNKER EARLE R JR
IPC分类号： G01R17/00 , G06G7/44 , G01D9/40 , G01R13/08
CPC分类号： G01R17/00 , G06G7/44
摘要： Apparatus for automatically drawing equipotential lines on a sheet of resistance paper, that has areas connected to different voltages of a voltage supply. An ordinary X-Y-plotter is used, but the ink pen is insulated from its surroundings, and a wire is connected from the pen to the terminal where the slide wire is normally connected. The plotter is set for automatic X-Sweep, and a preset voltage equal to that of the equipotential line to be drawn, is connected to the Y-input of the plotter. As a result, the difference between the voltage at the pen and the preset voltage drives the pen up or down, so that it always contacts points on the resistance paper which are of the voltage of the equipotential line to be drawn.

9. 发明授权

US3605775A Method to control dosage of additive into treatment process and automatic device therefor 失效
标题翻译：将添加剂加入处理过程的方法及其自动设备的方法
公开(公告)号：US3605775A
公开(公告)日：1971-09-20
申请号：US3605775D
申请日：1969-11-18
申请人： GEN AM TRANSPORT
发明人： ZAANDER CARL J , MILENKOVIC VELJKO , JOHNSON BERNARD A
IPC分类号： G05D21/02 , G06G7/44 , G06G7/58 , E03B1/00 , G05D11/00
CPC分类号： G06G7/58 , G05D21/02 , G06G7/44 , Y10T137/0329 , Y10T137/2509
摘要： A METHOD FOR CONTROLLING, BY A NOVEL FEEDFORWARD-FEEDBACK ADAPTIVE SYSTEM, A CONTINUOUS PROCESS OF TREATING A FLUID, CONTAINING AN INGRIEDENT, THAT INCLUDES INCORPORATING A DOSAGE OF ADDITIVE IN THE FLOWING FLUID SO AS TO CHANGE THE INGRIDIENT. DURING THE OPERATION OF THE PROCESS, WITHOUT THE USE OF THE CONTROL METHOD, THERE CAN BE UNPREDICTABLE VARIATIONS AFFECTING THE EFFICIENCY OF THE TREATMENT SO AS TO REQUIRE CORRECTION OF THE DOSAGE OF ADDITIVE TO AN UNPREDICTABLE EXTENT. A DEVICE FOR THIS SYTEM PROVIDES FOR AUTOMATIC CONTROL OF DOSAGE OF THE ADDITIVE. IN THE PROCESS THERE IS A NONLINER RELATIONSHIP BETWEEN THE AMOUNT OF ADDITIVE AND THE DEGREE OF TREATMENT. THIS RELATIONSHIP CAN BE EXPRESSED AS A MONOTONIC CURVE WITHIN THE RANGE OF CONCENTRATION OF THE INGREDIENT IN THE FLUID AND THE RANGE OF DOSAGE REQUIRED FOR THE DESIRED EXTENT OF TREATMENT. THE CONTROL METHOD COMPRISES: A FEEDFORWARD CONTROL PROCESS INCLUDING (1) MONITORING THE FLOWING FLUID TO SENSE A PROPERTY OF THE FLUID RELEVANT TO THE TREATMENT OF THE FLUID BY THE ADDITIVE, AND (2) GENERATING A FIRST SIGNAL PROPORTIONAL TO THE MAGNITUDE OF THE SENSED PROPERTY OF THE FLUID TO BE TREATED, A FEEDBACK CONTROL PROCESS INCLUDING (1) MONITORING A PRODUCT OF THE TREATMENT PROCESS TO SENSE A PROPERTY OF THAT PRODUCT RELEVANT TO THE DESIRED RESULT OF THE TREATMENT PROCESS, (2) GENERATING A SECOND SIGNAL PROPORTIONAL TO THE DESIRED MAGNITUDE OF THE SENSED PROPERTY OF THE PRODUCT, (3) GENERATING A THIRD SIGNAL PROPORTIONAL TO THE MAGNITUDE OF THE ACTUAL SENSED PROPERTY OF THE PRODUCT, AND (4) COMPARING THE SECOND AND THIRD SIGNALS TO PROVIDE AN ERROR SIGNAL INDICATING THE DIFFERENCE BETWEEN THE ACTUAL AND DESIRED SENSED PROPERTY OF THE PRODUCT, AN ADAPTIVE CONTROL PROCESS INCLUDING (1) SUPERIMPOSING THE FIRST SIGNAL ON THE ERROR SIGNAL BY DIVIDING THE LATTER BY THE FORMER TO PROVIDE A FOURTH SIGNAL, (2) INTEGRATING THE FOURTH SIGNAL OVER A LONG PERIOD OF TIME TO PROVIDE A FIFTH SIGNAL, AND (3) MULTIPLYING THE FIRST SIGNAL BY THE FIFTH SIGNAL TO OBTAIN A SIXTH SIGNAL THAT INCLUDES THE VARIABLE GAIN FOR THE FIRST SIGNAL BY THE EXTENT OF THE FIFTH SIGNAL, AND USING THE SIXTH SIGNAL TO ADJUST THE DOSAGE OF ADDITIVE INTO THE FLUID. THE DEVICE FOR AUTOMATICALLY CONTROLLING THE DOSAGE OF ADDITIVE PERFORMS THE THREE BASIC CONTROL FUNCTIONS DESCRIBED ABOVE FOR THE PROCESS. THUS THE PART OF THE DEVICE THAT PROVIDES A SIGNAL REPRESENTING A COMPARISON OF ACTUAL AND DESIRED PROPERTY OF A PRODUCT OF THE TREATMENT IS THE FEEDBACK SYSTEM THAT IS USED TO ADJUST DOSAGE WITH THE ADJUSTMENT TIME BEING MADE THROUGH AN INTERGRATOR TO REDUCE THE STEADY STATE ERROR TO ZERO. THE SIGNAL PROPORTIONAL TO THE MAGNITUDE OF THE PROPERTY OF THE FLUID TO BE TREATED IS THE FEEDFORWARD SIGNAL THAT PROVIDES ESSENTIALLY INSTANTANEOUS CORRECTIVE RESPONSE WHILE THE OTHER SYSTEM IS VERY SLOW. THE CONTROL OF THE FEEDFORWARD SYSTEM TO CHANGE WITH VARIATION IN ONE OR MORE PROCESS CONDITIONS, E.G., EFFICIENCY, IS DETERMINED BY THE FEEDBACK SYSTEM THAT ADJUSTS THE GAIN OF THE FEEDFORWARD SYSTEM.

10. 发明授权

US3182183A Analog function generation 失效
标题翻译：模拟功能生成
公开(公告)号：US3182183A
公开(公告)日：1965-05-04
申请号：US2943060
申请日：1960-05-16
申请人： GEN PRECISION INC
发明人： JONES CLARENCE S
IPC分类号： G06G7/26 , G06G7/44
CPC分类号： G06G7/44 , G06G7/26

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