公开(公告)号：US5487026A

公开(公告)日：1996-01-23

申请号：US28834

申请日：1993-03-10

申请人： Michael G. Robinson

发明人： Michael G. Robinson

IPC分类号： G02F1/13 ,  G02F3/00 ,  G06E1/00 ,  G06F15/16 ,  G06F15/18 ,  G06N3/067 ,  G06N99/00 ,  G06G7/16

CPC分类号： G06N3/0675

摘要： A linear algebraic processor is provided, for instance for performing vector matrix multiplications as part of a neural network. Light emitting diode strips 4 are formed on one substrate 1 and are illuminated in accordance with the values of elements of an input vector. Photodiode strips 8 are arranged orthogonally to the light emitting diode strips 4 on another substrate 2. A ferro-electric liquid crystal layer 3 is disposed between the strips 4 and 8 and provided with polarisers and electrodes 7 and 9 to permit the light attenuation properties of each matrix element between facing portions of the light emitting diode strips 4 and photodiode strips 8 to be varied and stored in a non-volatile way. The optical attenuation represents the value of the elements of the matrix and the outputs of the photodiode strips 8 represent the value of the elements of an output vector formed as the product of the input vector and the matrix. The optical attenuation of the ferro-electric liquid crystal can be incremented or decremented by applying suitable voltages to the electrodes so as to create electric fields across the liquid crystal matrix elements.

摘要翻译： 提供了线性代数处理器，例如用于执行矢量矩阵乘法作为神经网络的一部分。 发光二极管条4形成在一个基板1上，并根据输入矢量的元素的值被照亮。 光电二极管条8与另一个基片2上的发光二极管条4正交布置。铁电液晶层3设置在条带4和8之间，并设置有偏振器和电极7和9，以允许光衰减性能 发光二极管条4和光电二极管条8的相对部分之间的每个矩阵元件将以非易失性方式变化和存储。 光学衰减表示矩阵的元素的值，并且光电二极管条8的输出表示形成为输入向量和矩阵的乘积的输出向量的元素的值。 铁电液晶的光学衰减可以通过向电极施加合适的电压来增加或减少，以便在液晶矩阵元件上产生电场。

公开(公告)号：US5461583A

公开(公告)日：1995-10-24

申请号：US212222

申请日：1994-03-14

申请人： Thierry Fensch ,  Yves Mazoyer

发明人： Thierry Fensch ,  Yves Mazoyer

IPC分类号： H03B28/00 ,  G06G7/16 ,  G06J1/00

CPC分类号： H03B28/00

摘要： A programmable frequency sine wave signal generator, including a generator for generating square-wave signals having a programmable frequency; a counter for counting the periods of the square-wave signals; circuits for providing successive discrete sine wave values from successive states of the counter; and a low-pass filter receiving the successive discrete sine wave values and providing the sine wave. The low-pass filter is a switched-capacitor filter with a switching mode that is controlled by a signal having a frequency proportional to the frequency of the square-wave signal. Correct selection of the values of the filter capacitors allows the cut-off frequency of the filter to be continuously substantially the same as the frequency of the sine wave.

摘要翻译： 一种可编程频率正弦波信号发生器，包括用于产生具有可编程频率的方波信号的发生器; 用于对方波信号的周期进行计数的计数器; 用于从计数器的连续状态提供连续的离散正弦波值的电路; 以及接收连续离散正弦波值并提供正弦波的低通滤波器。 低通滤波器是开关电容滤波器，其开关模式由具有与方波信号的频率成比例的频率的信号控制。 正确选择滤波电容的值允许滤波器的截止频率与正弦波的频率连续基本相同。

公开(公告)号：US5446374A

公开(公告)日：1995-08-29

申请号：US208670

申请日：1994-03-11

申请人： Denis Pradel

发明人： Denis Pradel

IPC分类号： G01R21/133 ,  G06G7/16 ,  G06G7/163 ,  G06J1/00 ,  G01R7/00

CPC分类号： G01R21/133 ,  G06G7/163 ,  G06J1/00 ,  G06Q50/06

摘要： A circuit has two multiplier modules. Each multiplier module has at least one controllable potentiometer for adjusting the amplitude ratio between an output signal and an input signal of the module. The potentiometers have substantially identical characteristics and they are controlled in the same manner such that the amplitude ratios of the multiplier modules are substantially equal. One of the modules receives as its input signal the first signal to be multiplied and delivers an output signal that is proportional to the product of the two operands, while the other module receives as its input signal a reference voltage and as its output signal it delivers a feedback signal which is servo-controlled to a value that is approximately equal to the value of the second signal to be multiplied. The circuit is applicable to meters for electrical energy.

摘要翻译： 电路有两个乘法器模块。 每个乘法器模块具有至少一个用于调节输出信号和模块的输入信号之间的幅度比的可控电位计。 电位器具有基本上相同的特性，并且以相同的方式控制，使得乘法器模块的振幅比基本相等。 其中一个模块作为其输入信号接收要乘以的第一个​​信号，并传送与两个操作数的乘积成比例的输出信号，而另一个模块作为其输入信号接收参考电压，并作为其输出的输出信号 反馈信号被伺服控制到大致等于要乘以的第二信号的值的值。 该电路适用于电能表。

公开(公告)号：US5406131A

公开(公告)日：1995-04-11

申请号：US174064

申请日：1993-12-28

申请人： Guoliang Shou ,  Weikang Yang ,  Sunao Takatori ,  Makoto Yamamoto

发明人： Guoliang Shou ,  Weikang Yang ,  Sunao Takatori ,  Makoto Yamamoto

IPC分类号： G06G7/16 ,  G04F10/10 ,  G06G7/20 ,  H03K4/00 ,  H03K19/00

CPC分类号： G04F10/10

摘要： An exponential circuit according to the present invention converts voltage level to time by using a charged voltage of RC circuit RC.sub.1, registers time as a clock number at a digital counter and performs bit shift for the registered data.

摘要翻译： 根据本发明的指数电路通过使用RC电路RC1的充电电压将电压电平转换为时间，在数字计数器处将时间作为时钟数进行登记，并对登记的数据执行位移。

公开(公告)号：US5038315A

公开(公告)日：1991-08-06

申请号：US351881

申请日：1989-05-15

申请人： Sailesh K. Rao

发明人： Sailesh K. Rao

IPC分类号： G06G7/14 ,  G06F7/52 ,  G06G7/16

CPC分类号： G06F7/5338 ,  G06F2207/3852 ,  G06F7/49994

摘要： In a multiplier for binary numbers represented in two's complement notation, the need to perform sign-bit extension in order to combine the partial products is avoided by representing the value represented by the sign bits of all the partial products as a two's complement number in its own right. The bits of that number, rather than the original sign bits, are then used in the partial product addition. Since (as with all two's complement numbers) all the bits of the sign-bit-value word are guaranteed to have positive significance (except for the left-most one), the digits of the partial products can then be direcly added without the need for sign bit extension.

公开(公告)号：US4815027A

公开(公告)日：1989-03-21

申请号：US102789

申请日：1987-09-23

申请人： Jun Tokumitsu ,  Kenji Saito ,  Yuichi Handa ,  Nobuyoshi Tanaka ,  Hidetoshi Nojiri

发明人： Jun Tokumitsu ,  Kenji Saito ,  Yuichi Handa ,  Nobuyoshi Tanaka ,  Hidetoshi Nojiri

IPC分类号： G06E3/00 ,  H04N1/60 ,  G06G9/00 ,  G06G7/16

CPC分类号： G06E3/005 ,  H04N1/6016

摘要： In an optical operation apparatus, a light source emits a light intensity-modulated on the basis of a first electrical signal. A modulating device receives the light from the light source and intensity-modulates the light on the basis of the first signal, and a photoelectric converting device converts the light modulated by the modulating device into a second electrical signal. These functions are carried out by any of a number of different arrangements of filter elements, and electro-optical or acoustico-optical devices can be used for intensity modulation.

摘要翻译： 在光操作装置中，光源基于第一电信号发射强度调制光。 调制装置接收来自光源的光并基于第一信号对光进行强度调制，并且光电转换装置将由调制装置调制的光转换为第二电信号。 这些功能通过滤波元件的多种不同布置中的任何一种进行，并且电光或光学设备可用于强度调制。

公开(公告)号：US4794552A

公开(公告)日：1988-12-27

申请号：US793263

申请日：1985-10-31

申请人： Colin Burn

发明人： Colin Burn

IPC分类号： G01H3/00 ,  G01S7/52 ,  H03K17/16 ,  G01C25/00 ,  G06F15/20 ,  G06G7/16

CPC分类号： G01H3/005 ,  G01S7/52004 ,  H03K17/16

摘要： A signal synthesizer is provided for producing pulses simulating characteristics of echo pulses generated during ultrasonic scanning so that the simulated pulses can be used in the calibration of equipment for processing the outputs of ultrasonic transducers. The synthesizer produces an envelope signal of selectively variable amplitude and rise and fall time and multiplies this envelope respectively with a high frequency pulse train and a substantially zero amplitude signal in a dual matched multiplier so that the subtractively combined outputs of the multiplier are free of unwanted feedthrough components introduced by the mulitplier.

摘要翻译： 提供信号合成器用于产生模拟超声波扫描期间产生的回波脉冲的特性的脉冲，使得模拟脉冲可用于校准超声波换能器输出的设备。 合成器产生选择性可变幅度和上升和下降时间的包络信号，并将该包络分别与双重匹配乘法器中的高频脉冲串和基本上为零的幅度信号相乘，使得乘法器的相减组合的输出没有不必要的 馈线组件由多功能一体机引入。

公开(公告)号：US4686646A

公开(公告)日：1987-08-11

申请号：US729386

申请日：1985-05-01

申请人： Anastasios P. Goutzoulis

发明人： Anastasios P. Goutzoulis

IPC分类号： G06E3/00 ,  G06G9/00 ,  G06G7/16

CPC分类号： G06E3/005

摘要： An optical processor suitable for matrix-vector multiplication. Coherent light passes through an acousto-optic cell modulated by the elements in the rows of the matrix. This light progresses through a lens system to a magneto-optic cell which is modulated by the column elements of the vector. The light passing through the magneto-optic cell is converged by a spherical lens onto a single optical-to-electrical converter, whose output is applied to an analog-to-digital converter. After conversion to digital values, the result is converted from mixed binary to pure binary form.

摘要翻译： 适用于矩阵向量乘法的光学处理器。 相干光通过由矩阵行中的元素调制的声光单元。 该光通过透镜系统进行到由矢量的列元素调制的磁光电池。 通过磁光单元的光被球面透镜会聚到单个光电转换器上，该转换器的输出被施加到模拟 - 数字转换器。 转换成数字值后，结果从混合二进制转换为纯二进制形式。

公开(公告)号：US4608533A

公开(公告)日：1986-08-26

申请号：US506675

申请日：1983-06-22

申请人： Alan H. Starkie

发明人： Alan H. Starkie

IPC分类号： G06G7/16

CPC分类号： G06G7/16

摘要： An automatic compensation circuit for use with an analog multiplier is disclosed. At regular intervals at least one input to the analog multiplier is constrained to be zero for a short time. During this time a sample and hold circuit retains the pre-existing output voltage and a feedback circuit is activated which adjusts the output voltage of the multiplier to zero, thereby providing an accurate multiplied or product signal, typically representing power consumption, which is adjusted or compensated for the effects of any internal errors occurring within the analog multiplier.

摘要翻译： 公开了一种与模拟乘法器一起使用的自动补偿电路。 在一段时间内，模拟乘法器的至少一个输入在短时间内被约束为零。 在此期间，采样和保持电路保持预先存在的输出电压，激活反馈电路，将反馈电路的输出电压调整为零，从而提供典型地表示功耗的精确乘法或乘积信号，该信号被调整或 补偿模拟乘法器内发生的任何内部错误的影响。

公开(公告)号：US4567569A

公开(公告)日：1986-01-28

申请号：US450153

申请日：1982-12-15

申请人： Henry J. Caulfield ,  William T. Rhodes

发明人： Henry J. Caulfield ,  William T. Rhodes

IPC分类号： G06E3/00 ,  G06G9/00 ,  G02B6/10 ,  G06G7/16

CPC分类号： G06E3/005

摘要： Provided are a series of analog quantities that are approximately proportional respectively to the components of a third array that is the product of a first array of components multiplied by a second array of components in a predetermined order. Light of intensity approximately proportional to the first component of the first array is directed to the input side of a modulator whose output light intensity is approximately proportional to an electrical signal applied to it. Applied to the modulator, while the light is passing through it, is a signal approximately proportional to the first component of the second array, so that the intensity of the output light from the modulator is approximately proportional to the product of the two first components. The output light from the modulator is directed to a detector for providing an electrical signal that is approximately proportional to the product of the two first components. After predetermined times, the above steps are repeated with the second then the third, etc., and finally with the last component of the first array and the last component of the second array to provide a similar electrical signal each time; and the individual product signals are directed to summers, so that each provides an output that is approximately proportional to a component of the third array.

摘要翻译： 提供了一系列模拟量，其大致与第三阵列的分量成比例，该第三阵列是以预定顺序乘以第二阵列阵列乘以第二阵列阵列的乘积的乘积。 大致与第一阵列的第一分量成比例的强度的光被引导到调制器的输入侧，其输出光强近似与施加到其的电信号成比例。 当光通过它时，被施加到调制器，是与第二阵列的第一分量成正比的信号，使得来自调制器的输出光的强度大致与两个第一分量的乘积成比例。 来自调制器的输出光被引导到检测器，用于提供大致与两个第一分量的乘积成比例的电信号。 在预定时间之后，用第二个到第三个等重复上述步骤，最后用第一阵列的最后一个部分和第二个阵列的最后一个部分每次都提供类似的电信号; 并且单个产品信号被引导到夏季，使得每个产品提供与第三阵列的分量近似成比例的输出。