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1. 发明授权

US5708385A Weighted addition circuit 失效
标题翻译：加权加法电路
公开(公告)号：US5708385A
公开(公告)日：1998-01-13
申请号：US657757
申请日：1996-05-31
申请人： Guoliang Shou , Sunao Taktori , Makoto Yamamoto
发明人： Guoliang Shou , Sunao Taktori , Makoto Yamamoto
IPC分类号： G06G7/14 , G06G7/42
CPC分类号： G06G7/14
摘要： A weighted addition circuit contains a plurality of resistances, each of which is connected to a common output at one terminal and to different input voltages at the other terminal. The voltage at the common output terminal is a balance voltage of the input resistances. The common output terminal is connected to an amplifier having an odd number of stages of inverters and a feedback resistance connecting the output of the last inverter stage to the input of the first inverter stage. Grounded low pass capacitors and/or balance resistors are also be included in the amplifier to improve the stability of the circuit and prevent undesirable oscillation. Providing a circuit containing a balance voltage of the parallel-connected input resistances allows for precise weighted addition of any number of inputs while still maintaining a small and simple circuit structure.
摘要翻译：加权加法电路包含多个电阻，每个电阻在一个端子处连接到公共输出端，并在另一个端子处连接到不同的输入电压。公共输出端子的电压是输入电阻的平衡电压。公共输出端子连接到具有奇数级的反相器的放大器和将最后的反相器级的输出连接到第一反相器级的输入端的反馈电阻。放大器中还包括接地的低通电容和/或平衡电阻，以提高电路的稳定性并防止不希望的振荡。提供包含并联输入电阻的平衡电压的电路允许精确地加权任意数量的输入，同时仍保持小而简单的电路结构。

2. 发明授权

US3684872A Means and method for automatically determining the interface positions of an injection fluid in a petroleum or gas reservoir using an electrolytic model of the reservoir 失效
标题翻译：用于自动确定使用储存器的电解质模型的石油或天然气储存器中的注射液的界面位置的方法和方法
公开(公告)号：US3684872A
公开(公告)日：1972-08-15
申请号：US3684872D
申请日：1970-10-30
申请人： TEXACO INC
发明人： CLAUSET ALVIN O JR , HOYT DONALD L , HALL RUSSELL W JR
IPC分类号： G06G7/42 , G06G7/57 , G06G7/48
CPC分类号： G06G7/57 , G06G7/42
摘要： WHERE Vrx and Vry are the X and Y components, respectively, of the velocity of flow in the reservoir at a point r, Q is the rate of a forcing fluid entering the reservoir, i is the total current in the electrolytic solution, Phi is the effective porosity of the medium containing the reservoirs, Sv and Sh are the vertical and horizontal scale factors, respectively, of the reservoir to the model and ARE VOLTAGE GRADIENTS IN THE X and Y directions, respectively, at a point in the model corresponding to the point r in the reservoir. the velocities are used to compute the interface positions of the petroleum or gas and the fluid in the reservoir by determining each incremental change in distance Delta s for a point, commonly referred to as a trace point of the interface between the fluid and the petroleum or gas, in accordance with the following equation:
An insulated grid, having four electrode probes at each intersection, overlays an analog model, using an electrolytic solution, of a petroleum or gas reservoir so that some or all of the probes are immersed in the electrolytic solution. Electrodes representing an injection well and a withdrawal well in the reservoir introduce an alternating current in the electrolytic solution corresponding to the injection rate of a fluid in the injection well. Alternating current voltages present at the probes, resulting from the alternating current in the electrolytic solution, are processed to provide digital signals. The digital signals are applied to a digital computer which determines the fluid velocity at a point r of the reservoir in accordance with the following vector equations:
摘要翻译：在每个交点处具有四个电极探针的绝缘栅格覆盖石油或气体储存器的电解溶液的模拟模型，使得一些或全部探针浸入电解溶液中。在储存器中表示注入井和抽出井的电极在电解溶液中引入与注入井中的流体注入速率相对应的交流电。由电解液中的交流产生的探针上存在的交流电压被处理以提供数字信号。数字信号被施加到数字计算机，该数字计算机根据以下矢量方程确定储层的点r处的流体速度：

3. 发明授权

US2936207A Apparatus for displaying tri-dimensional data 失效
标题翻译：用于显示三维数据的装置
公开(公告)号：US2936207A
公开(公告)日：1960-05-10
申请号：US68956457
申请日：1957-10-11
申请人： VERNON J PICK
发明人： BEAUMONT JAMES O , WEEKS RICHARD W
IPC分类号： G01B7/004 , G06G7/42
CPC分类号： G01B7/004 , G06G7/42

4. 发明授权

US5666080A Computational circuit 失效
标题翻译：计算电路
公开(公告)号：US5666080A
公开(公告)日：1997-09-09
申请号：US262059
申请日：1994-06-17
申请人： Guoliang Shou , Sunao Takatori , Makoto Yamamoto
发明人： Guoliang Shou , Sunao Takatori , Makoto Yamamoto
IPC分类号： G06G7/06 , G06G7/14 , G06G7/26 , G06J1/00 , G06N3/063 , G11C27/02 , G06G7/42 , H03K17/62
CPC分类号： G11C27/024 , G06G7/06 , G06G7/14 , G06G7/26 , G06J1/00 , G06N3/0635
摘要： Addition is performed by a capacitive coupling or resistive coupling. A quantizing circuit is realized by plurality of thresholding circuits receiving an analog input voltages. Subtraction is performed by to MOSs of anti-polarity inputted analog input voltages to gates.
摘要翻译：通过电容耦合或电阻耦合进行加法。量化电路由接收模拟输入电压的多个阈值电路实现。通过反向极性输入的模拟输入电压MOS到门执行减法。

5. 发明授权

US5502413A Switchable constant gain summing circuit 失效
标题翻译：可切换常数增益求和电路
公开(公告)号：US5502413A
公开(公告)日：1996-03-26
申请号：US188984
申请日：1994-01-31
申请人： Gary L. Stuhlmiller
发明人： Gary L. Stuhlmiller
IPC分类号： G06G7/14 , G11B20/10 , H03F3/72 , G06G7/42
CPC分类号： H03F3/72 , G06G7/14 , G11B20/10009
摘要： A switchable constant gain summer circuit (10) has been provided. The summer circuit selectively amplifies a plurality of input signals while maintaining a constant dc current flowing through a load which maintains a constant gain for the summer circuit. The summer circuit includes a plurality of amplifier circuits (12, 16) being respectively responsive to a plurality of input signals wherein each one of amplifier circuits has a control input and common first and second outputs for respectively providing first and second output signals. A plurality of control means (14, 18) responsive to a plurality of control signals is included for alternately providing first and second voltages to each one of the control inputs of the amplifier circuits. A load circuit (20) is coupled to the common first and second outputs of the amplifier circuits wherein a DC bias through the load circuit is substantially constant. Also, an output stage (22) coupled to the common first and second outputs of the plurality of amplifier circuits is included for respectively providing first and second summed voltages.
摘要翻译：提供了可切换的恒定增益加法电路（10）。夏季电路选择性地放大多个输入信号，同时保持恒定的直流电流流过负载，其保持夏季电路的恒定增益。夏季电路包括分别响应于多个输入信号的多个放大器电路（12,16），其中放大器电路中的每一个具有控制输入和用于分别提供第一和第二输出信号的公共第一和第二输出。包括响应于多个控制信号的多个控制装置（14,18），以交替地向放大器电路的每个控制输入提供第一和第二电压。负载电路（20）耦合到放大器电路的公共第一和第二输出，其中通过负载电路的直流偏压基本上是恒定的。此外，包括耦合到多个放大器电路的公共第一和第二输出的输出级（22），用于分别提供第一和第二相加的电压。

6. 发明授权

US2838233A Electrical analogues 失效
标题翻译：电气类似物
公开(公告)号：US2838233A
公开(公告)日：1958-06-10
申请号：US57642856
申请日：1956-04-05
申请人： TEXACO DEVELOPMENT CORP
发明人： GARRISON ALLEN D
IPC分类号： G06G7/42
CPC分类号： G06G7/42

7. 发明授权

US2795377A Electrical analogues 失效
标题翻译：电气类似物
公开(公告)号：US2795377A
公开(公告)日：1957-06-11
申请号：US32268652
申请日：1952-11-26
申请人： TEXAS CO
发明人： LOOFBOURROW ROBERT J , STELZER ROLAND B , SCOTTY CLARENCE B
IPC分类号： E21B47/00 , G06G7/42
CPC分类号： E21B47/00 , G06G7/42 , Y10T29/49069 , Y10T29/49204

8. 发明授权

US2630511A Electrical analogue 失效
公开(公告)号：US2630511A
公开(公告)日：1953-03-03
申请号：US20862051
申请日：1951-01-30
申请人： TEXAS CO
发明人： GERHARD HERZOG
IPC分类号： G06G7/42
CPC分类号： G06G7/42 , Y10T29/49082

9. 发明授权

US2569510A Electrical analogues 失效
标题翻译：电气类似物
公开(公告)号：US2569510A
公开(公告)日：1951-10-02
申请号：US79179747
申请日：1947-12-15
申请人： TEXAS CO
发明人： ALEXANDER WOLF
IPC分类号： E21B47/00 , G06G7/42
CPC分类号： E21B47/00 , G06G7/42 , Y10T29/49069 , Y10T29/49204

10. 发明授权

US06023184A Converter providing digital scaling and mixing 失效
标题翻译：转换器提供数字缩放和混合
公开(公告)号：US06023184A
公开(公告)日：2000-02-08
申请号：US975901
申请日：1997-09-16
申请人： James M. Little
发明人： James M. Little
IPC分类号： H03M3/02 , H03M7/32 , G06G7/42 , H03M3/00
CPC分类号： H03M7/304
摘要： A converter includes at least two series coupled integrators, a comparator and a feedback element. The converter provides digital domain scaling so that an output signal is a scaled version of an input signal based on a feedback factor of the feedback element.
摘要翻译： A转换器包括至少两个串联耦合积分器，比较器和反馈元件。转换器提供数字域缩放，使得输出信号是基于反馈元件的反馈因子的输入信号的缩放版本。

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