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8972474 
Logarithmic/inverselogarithmic conversion circuit
A logarithmic conversion circuit comprises: an operation amplifier; an input resistor connected at a preceding stage of an inverting input terminal, of the operation amplifier, to which a current... 

8907971 
Local definition of global image transformations
A global image adjustment, such as dynamic range adjustment is established based on image characteristics. The image adjustment is based more heavily on pixel values in image areas identified as... 

8819101 
Multibit sampling and quantizing circuit
Provided are, among other things, systems, apparatuses methods and techniques for performing multibit quantization. One such apparatus includes an input signal line; a first comparator having a... 

8799346 
Belief propagation processor
A processor includes a first memory module for storing a first set of storage values each representing a respective input, and a second memory module for storing a second set of storage values in... 

8688763 
Systems and methods for providing programmable analog classifiers
The present invention describes systems and methods to provide programmable analog classifiers. An exemplary embodiment of the present invention provides an analog classifier circuit comprising a... 

8649508 
System and method for implementing elliptic curve scalar multiplication in cryptography
A system and method for implementing the Elliptic Curve scalar multiplication method in cryptography, where the Double Base Number System is expressed in decreasing order of exponents and further... 

8605841 
Method for processing received OFDM data symbols and OFDM baseband receiver
A method is provided for processing received data symbols in an orthogonal frequency division multiplexing (OFDM) transmission scheme, and an OFDM baseband receiver which performs this method, in... 

8428259 
Apparatus and method for alloptical encryption and decryption of an optical signal
The present invention relates to an apparatus and method for the encryption and decryption of optically transmitted data, and more particularly to the encryption and decryption of optical data... 

8316069 
Semiconductor integrated circuit with a random number generation circuit wherein the rise and all times are variably controlled
The invention reduces unnecessary electromagnetic radiation noise associated with a step pulse of an output signal. A random number control register is a register for controlling start, standby,... 

7899852 
Systems, methods, and apparatus for quasiadiabatic quantum computation
Methods, systems and apparatus for quasiadiabatic quantum computation include initializing a quantum processor to a ground state of an initial Hamiltonian and evolving the quantum processor from... 

7844656 
Systems, methods and apparatus for factoring numbers
Systems, methods and apparatus for factoring numbers are provided. The factoring may be accomplished by creating a factor graph, mapping the factor graph onto an analog processor, initializing the... 

7797703 
Realtime schedulability determination method and realtime system
Schedulability determination method of determining whether realtime scheduling of tasks is possible using processors, includes calculating Lk and Σi=1 . . . NMi*Uk, i, (1≦k, i≦N; k, i: integer)... 

7788312 
Apparatus and method for reducing errors in analog circuits while processing signals
A method and apparatus processes signals in a set of analog circuit components of an analog circuit white enforcing a set of explicit constraints corresponding to a set of implicit constraints to... 

7769798 
Full CMOS minsum analog iterative decoders
Analog iterative decoders are provided that are based on the socalled minsum algorithm (also referred to as maxsum or maxproduct, MaxLogMAP or BPbased decoding) and can be used to decode... 

7631030 
Sine wave multiplication circuit and sine wave multiplication method
A sine wave multiplication circuit multiplies an analog input signal by n (n is an integer equal to or greater than 2) weighting coefficients each having a unique value. The polarity of the analog... 

7613765 
Bus architecture for quantum processing
A quantum processing apparatus includes a qubit, a superconducting bus, and a controllable coupling mechanism that controllably couples the superconducting bus to the qubit. The controllable... 

7613764 
Methods for quantum processing
A method for performing a coupling operation between a quantum device and a qubit is provided. The quantum device is coupled to a superconducting bus. The method includes placing a controllable... 

7610326 
Arithmetic circuit for calculating a cumulative value as a result of parallel arithmetic processing
An arithmetic circuit to calculate a cumulative value of results of parallel arithmetic processing, in which the increase of the circuit area for multipleterm arithmetic computation and the... 

7584238 
Analog circuit system for generating elliptic functions
An analog circuit system for generating output signals whose curve shape, at least sectionally, corresponds or is approximate to an elliptic function. Standard analog components such as adders,... 

7546332 
Apparatus and methods for implementation of mathematical functions
Apparatus and methods for implementation of mathematical functions apparatus providing both speed and accuracy. Disclosed are specific circuits and methods of operation thereof that may be used... 

7523154 
Write compensation circuit and signal interpolation circuit of recording device
A write compensation circuit of a recording device includes a first delay portion driven by a first driving voltage, for receiving a clock signal, delaying the clock signal by a first delay time,... 

7493353 
Stochastic processor, driving method thereof, and recognition process device using the same
A stochastic processor of the present invention includes a fluctuation generator configured to output an analog quantity having a fluctuation, a fluctuation difference calculation means configured... 

7464131 
Logical calculation circuit, logical calculation device, and logical calculation method
A logical calculation circuit capable of storing data, and performing logical calculations with high reliability and high speeds are provided. The residual polarized state s′ of a load... 

7461111 
Method of uniforming physical random number and physical number generation device
A method of uniforming physical random numbers while concurrently maintaining a random number generating rate and ensuring security. The method sequentially inputs a plurality of physical random... 

7451174 
Multilevel soft detectorquantizer
An analog electronic circuit is proposed that e.g. computes the symbol likelihoods for PAM or QAM signal constellations. The circuit has at least one set of M transistors connected to a common... 

7401108 
Random noise generator and a method for generating random noise
A random noise signal generator circuit comprising a random noise source that produces a random noise signal, an amplification circuit that amplifies the random noise signal to produce an... 

7302456 
Stochastic processor and stochastic computer using the same
A stochastic processor and a stochastic computer comprises a fluctuation generator configured to generate and output analog quantity having fluctuation comprised of chaos of tent mapping, a mixer... 

7218741 
System and method for adaptive multisensor arrays
An adaptive differential microphone array method comprises receiving a signal, estimating a measured signal spectral covariance matrix of the signal, and estimating a direction of arrival of the... 

7092980 
Programming architecture for a programmable analog system
A programmable analog device that introduces on a single chip a set of tailored analog blocks and elements that can be configured and reconfigured in different ways to implement a variety of... 

7020281 
Timing attack resistant cryptographic system
A method for determining a result of a group operation performed an integral number of times on a selected element of the group, the method comprises the steps of representing the integral number... 

7007060 
Random bit stream generation by amplification of thermal noise in a CMOS process
A method and circuit is presented for generating a random bit stream based on thermal noise of a Complementary Metal Oxide Semiconductor (CMOS) device. A circuit implementing the invention... 

6970900 
Optical system for certain mathematical operations
An optical system utilizing phosphors to perform mathematical operations without the direct or necessary use of an electronic component or electrical power source is disclosed. The luminenscent... 

6941336 
Programmable analog system architecture
A programmable analog system architecture and method thereof are described. The analog system architecture and method introduce a single chip solution that contains a set of tailored analog blocks... 

6910126 
Programming methodology and architecture for a programmable analog system
A method of programming a programmable analog device that introduces on a single chip a set of tailored analog blocks and elements that can be configured and reconfigured in different ways to... 

6898616 
Arbitrary function generating circuit using a simple operational element and an encryption method thereof
An arbitrary function generating circuit incorporating an analog multiplier, amplifier, and frequency multiplier to construct a nonlinear analog circuit equivalent to a generalized LotkaVolterra... 

6857003 
Method of generating random numbers
A method of generating random numbers comprises: generating a first noise and passing the first noise through a first high pass filter which removes a periodic component contained in the first... 

6810407 
Optical boolean logic devices for data encryption
An optical device for performing at least one Boolean logic operation. The optical device has at least a first and second input signal and at least one output signal. The optical device includes... 

6704757 
Semiconductor arithmetic unit
A semiconductor arithmetic unit which realizes a maximum or minimum value retrieval operation at high speed and with a high degree of accuracy used in a vector quantization processor is composed... 

6701340 
Double differential comparator and programmable analog block architecture using same
A double differential comparator can be efficiently implemented utilizing a first comparator stage having a folded cascode with floating gate input terminals and clamped singleended output, and a... 

6691145 
Computing circuit, computing apparatus, and semiconductor computing circuit
A computing circuit capable of computing an absolute difference with highspeed analog computation, a computing apparatus capable of computing the sum of absolute differences and a semiconductor... 

6587061 
Analog computation circuits using synchronous demodulation and power meters and energy meters using the same
The present invention relates to analog computation circuits that use a synchronous demodulator topology which can be configured to perform arithmetic computation, power measurements, and/or... 

6584486 
Method for mathematically processing two quantities in an electronic circuit
The method serves to add at least two values by means of a circuit. Both input values and output values are represented in differential form, either as a pair of voltages or as a pair of currents.... 

6571263 
Random number generating apparatus
A random number generating apparatus which is suitable for miniaturization and which can easily generate binary random numbers that are cryptographically secure is provided. The apparatus... 

6513023 
Artificial neural network with hardware training and hardware refresh
A neural network circuit is provided having a plurality of circuits capable of charge storage. Also provided is a plurality of circuits each coupled to at least one of the plurality of charge... 

6282559 
Method and electronic circuit for signal processing, in particular for the computation of probability distributions
A circuit module for data processing comprises several first inputs (Ix,i), several second inputs (Iy,i) and several outputs (Ii,j). First transistors (Ti,j) combine the first and second inputs.... 

6081825 
Semiconductor device, semiconductor circuit using the device, and correlation calculation device, signal converter, and signal processing system using the circuit
In a semiconductor device in which one terminal of each of plural capacitors is connected to a corresponding multiple input terminal via a switch, and the other terminals of the capacitors are... 

6073149 
Computational circuit
A computational circuit for a multivalue addition comprising a parallel adder, an output adder, a quantizing portion and a logic conversion portion. Addition circuits in the above adders and... 

6070178 
Generating random numbers from random signals without being affected by any interfering signals
A random number generator for generating random numbers. The generator may include two similarly implemented random signal sources, with each source generating a random signal. A difference signal... 

6035005 
Receiver with baseband I and Q demodulator
A baseband demodulator receives inphase and quadrature signals I (116) and Q (117) representing a phase angle and amplitude. The demodulator (114) includes a discrete time continuous amplitude... 

6014685 
Electronic circuit for determination of distances between reference and data points
An electronic circuit for Euclidean distance determination includes two floating gate transistors (M1, M2) connected in parallel. Voltages representing a reference point and its complement are... 