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8930687 
Secure distributed deduplication in encrypted data storage
In an encrypted storage system employing data deduplication, encrypted data units are stored with the respective keyed data digests. A secure equivalence process is performed to determine whether... 

8819094 
Multiplicative division circuit with reduced area
The technology is a division circuit with decreased circuit area. An embodiment includes an integrated circuit implementing multiplicative division of a dividend input and a divisor input. The... 

8694573 
Method and system for determining a quotient value
A method for determining a quotient value from a dividend value and a divisor value in a digital processing circuit is provided. The method includes computing a reciprocal value of the divisor... 

8610486 
Currentmode analog computational circuit
A currentmode analog computational circuit can be controlled to produce multiplying, squaring, divider and inverse functions and corresponding current outputs. The currentmode analog... 

6952297 
Method of differentially connecting photonic devices
A method and apparatus are provided for driving an electrooptic converter assembly with an information signal. The method includes the steps of disposing a resistor having a resistance... 

4949396 
Divider method and apparatus with means for avoiding divide by zero errors
A divider circuit arrangement in which in order to avoid dividing by zero the divisor (Vd) is modified by the addition of an extra signal (Xa) to form a modified divisor V'd =Vd +Xa and the... 

4686647 
Numerical division of two arrays by optical processing
Apparatus for performing a division of a dividend intensity array by a divisor intensity array on a pixelbypixel basis, to yield a quotient intensity array, wherein optical feedback principles... 

4631745 
Analog divider with minimal phase distortion
An analog divider circuit as for use in AM stereophonic receivers provides minimum phase variation with control voltage level change, by means of a feedback circuit. The division process is... 

4607343 
Apparatus and method for performing division with an extended range of variables
A method and apparatus are disclosed which, for obtaining the quotient of division operations in a data processing apparatus, generate as an auxiliary value the inverse square root g of the... 

4578772 
Voltage dividing circuit
The present invention relates to a voltage dividing circuit comprising capacitors or resistors. In the case of a voltage dividing circuit comprising capacitors, the capacitors are connected at one... 

4476538 
Trigonometric function generator
A universal trigonometric function generator which is selectively programmable by pinstrapping to generate any of the standard trigonometric functions (sine, cosine, tangent, cotangent, secant... 

4388694 
Circuitry for simultaneously performing integration and division
The disclosed circuitry for integrating an analog voltage signal with respect to time, t, while simultaneously dividing the integral by time, t, is valuable for use in medical pulmonary analyzers... 

4306297 
Apparatus for measuring the vector voltage ratio of two A.C. signals
An apparatus is disclosed for determining the vector voltage ratio of two a.c. input signals. A synchronous rectifying circuit, a phase shifter and a voltmeter are employed to detect the inphase... 

4272197 
Apparatus and method for measuring the ratio of two signals
The ratio of the intensity of two light beams is determined by an apparatus which includes a chopper wheel for chopping one of the light beams, a photodetector for detecting the intensity of both... 

4270175 
Apparatus for dividing a segment of variable length into equal parts
Apparatus for dividing a segment of variable length into equal parts employing any whole number as a divisor. The apparatus comprises means for realizing the segment by a difference in distance... 

4190891 
System having a fixed excitation and providing a variable ratio output
A system for providing a variable ratio output signal includes differential amplifier means for measuring the amplitude of a fixed reference signal relative to system ground. The measured signal... 

4155038 
Automatic comparison calibration device with ratio determination
Apparatus for comparing an unknown signal with a reference signal is adapted to determine their ratio and, where a variation exists, to compensate the unknown signal to achieve unity ratio. The... 

4092724 
Polar converter
A polar display representing the ratio of two input signals is provided by exponentiating the logarithmic ratio of two input signals. The DC voltage thus produced, which is proportional to the... 

4076424 
Multichannel implicit ratio computer for sequential signals
A multichannel electrical signal ratioing circuit for a source delivering an electric analog pulse signal sequence having a broadened choice of ratio denominator terms provided by... 

4001602 
Electronic analog divider
Advantage is taken of the currentexponential voltage characteristic of a diode over a certain range whereby the incremental impedance across the diode is inversely proportional to the current... 

3981586 
Continuously monitoring ratiometer
An analytically significant ratio between timevarying magnitudes of signals is periodically monitored in recurring cycles which are each synchronized with a frequency generator. During every... 

3976868 
Voltage synthesization
A circuit for the simulation or synthesization of the equivalent voltage of a supply comprised of at least one voltage source and one impedance includes means to develop signals proportional to... 

3896391 
High speed video divider with compensation for nonlinear functions
A wide  bandwidth divider which is capable of dividing video signals in the frequency range extending from d.c. to a desired frequency such as 5 mergahertz and incorporating special compensation... 

3875519 
Ratio computing circuit
A ratio computer serially accepts a reference signal pulse and two condition indicating signal pulses from a detector. The computer selects the reference pulse, which is then integrated. The... 

3818207 
APPARATUS FOR CONVERTING A MEASURING VOLTAGE INTO VALUES NOT PROPORTIONAL THERETO
The invention relates to an apparatus for converting a measuring voltage into a second voltage which is not proportional to the measuring voltage. The apparatus comprises a first linear circuit... 

3805046 
LOGARITHMIC CONVERSION SYSTEM
A new logarithmic conversion system takes advantage of the time domain as an intermediate step in converting an analog input signal into an output signal which is a function of the logarithm of... 

3798432 
MEASUREMENT OF PRESSURE RATIO
Apparatus for evaluating widthmodulated pulse waveforms, more particularly fluidic pulse waveforms which are obtained at the output of a substantially symmetrically constructed twoway switching... 

3789197 
ANALOG DIVIDER AND NAVIGATION COMPUTER
A voltage analog of a denominator is integrated for a period of time, and then the integrator is reset to zero, cyclically; the output of the integrator is compared with a voltage analog of a... 

3737640 
ELECTRONIC FEEDBACK CONTROLLED TIMEDIVISION MULTIPLIER AND/OR DIVIDER
An electronic system for simultaneously multiplying and dividing analog signals which comprises a closed loop circuit in which the division is accomplished by introducing the dividend signal into... 

3703631 
MEAN SPEED INDICATOR SYSTEMS FOR VEHICLES
A means for speed calculator for vehicles in which the distance travelled by the vehicle and the time taken to travel such distance are converted continuously into proportional movements of two... 

3691473 
VOLTAGE RATIO APPARATUS WITH LOGARITHMIC OUTPUT
Both an input voltage signal and an adjustable reference voltage signal are compared with an exponential wave for providing, through a logic circuit, an output pulse whose width is proportional to... 

3675003 
SYSTEMS INVOLVING DIVISION
A system wherein division by zero is avoided. A numerator voltage is applied to a high gain amplifier having a negative feedback loop controlled by a denominator voltage which if zero disables... 

3655954 
CLOSED LOOP CONTROL SYSTEM WITH AUTOMATIC VARIATION OF ITS REGULATING FEEDBACK AMPLIFICATION
In a closedloop control system the regulated system portion has a number (n) of integration members. The regulator feedback which is connected between output and input of the regulated system... 

3652930 
RATIO MEASURING APPARATUS
Ratio measuring apparatus adapted to measure various parameters of impedance elements is comprised by a multiplier energized by a divisor signal, and an integrator supplied with a dividend signal... 

3634669 
ANALOG COMPUTATION OF INSURANCE AND INVESTMENT QUANTITIES
A portable analog computer for determining insurance requirements, taking net worth into account, and for calculating investment returns on funds that are incremented periodically and earn... 

3624378 
ELECTRONIC ANALOG DIVISION MEANS
Electronic circuit means for performing the division of one or more signals by another signal, said electronic circuit means including at least one bridge circuit including electrooptical devices... 

3624497 
METHOD AND APPARATUS FOR MEASURING THE SLOPES OF ELECTRIC PULSES WHICH MAY BE ACCOMPANIED BY HIGHBACKGROUND NOISE
In order to measure the slopes of pulses which make up a signal which may be accompanied by highbackground noise, a sawtooth wave of slope is generated. The sawtooth wave is generated in... 

3547541 
SPECTROMETER APPARATUS FOR SEQUENTIALLY MEASURING RATIOS OF SELECTED SPECTRAL INTENSITIES


3538320 
INTEGRATED CIRCUIT ELECTRONIC ANALOG DIVIDER WITH FIELD EFFECT TRANSISTOR THEREIN


3538438 
TRANSISTOR BETA TEST AND DISPLAY CIRCUIT


3535503 
MULTIPLIERDIVIDER COMPUTING CIRCUIT


3517179 
ARITHMETIC CIRCUITS FOR DIVISION AND SQUARE ROOT EXTRACTION WITH FIELD EFFECT TRANSISTOR IN FEEDBACK NETWORK OF AMPLIFIER


3514700 
VOLTAGE RATIO COMPUTER


3514612 
ASTRONOMICAL SEEING CONDITIONS MONITOR


3509332 
ANALOG FOUR QUADRANT DIVIDE CIRCUIT


3502983 
SIGNAL PEAKTOAVERAGE RATIO DETECTOR


3497717 
ANALOG DEVICE FOR MULTIPLYING/DIVIDING USING PHOTOCONDUCTIVE MEANS


3493738 
SAMPLED DATA ANALOG DIVIDER


3488484 
COMPUTING DEVICE FOR COMPUTING THE LOGARITHM OF THE RATIO OF TWO VOLTAGES


3705991 
DIVIDING CIRCUIT USING MONOSTABLE MULTIVIBRATOR
