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5021693 
Control circuit for floating gate fourquadrant analog multiplier
Disclosed is an electronic circuit comprising commonly connecting the gate end of a first transistor having a floating gate and the source end and the drain end of a second transistor having a... 

5008851 
Optical heterodyning system and method for rapid optical phase and amplitude measurements
A system and method is presented for obtaining optical phase and amplitude measurements utilizing an acoustooptical modulator for modulating a laser light beam with a multifrequency electrical... 

5008833 
Parallel optoelectronic neural network processors
Several embodiments of neural processors implemented on a VLSI circuit chip are disclosed, all of which are capable of entering a matrix T into an array of photosensitive devices which may be... 

5004932 
Unit circuit for constructing a neural network and a semiconductor integrated circuit having the same
A semiconductor integrated circuit for constructing a neural network model, comprising a differential amplifier which includes one output terminal and two input terminals, an excitatory synapse... 

4999525 
Exclusiveor cell for pattern matching employing floating gate devices
A semiconductor cell for producing an output current that is related to the match between an input vector pattern and a weighting pattern is described. The cell is particularly useful as a synapse... 

4985824 
Reliable fuzzy fault tolerant controller
The invention is a controller which provides continuous regulation of the output of a process or a plant as well as performing discrete control functions. The REFFTAC includes an adaptive direct... 

4977540 
Spin glass type associative processor system
An associative data processor including a spin glass type amorphous magnetic film has input areas, output areas, and "hidden" or associative areas. A coil provides selective magnetic biasing, and... 

4976520 
Common path multichannel optical processor
Adverse environmental effects may be canceled from an optical processor which adjusts the phase of spatially distributed frequency components. This is achieved by projecting the optical modulated... 

4972363 
Neural network using stochastic processing
An apparatus and method for implementing a neural network having N nodes coupled to one another by interconnections having interconnect weights Tij that quantify the influence of node j on node i.... 

4967369 
Variable capacity transmission medium
Methods of information correlation based on extremization of transmission capacity of an assembly of information processors are disclosed. In one embodiment, an assembly of processors exchanging... 

4961002 
Synapse cell employing dual gate transistor structure
A synapse cell for providing a weighted connection between an input voltage line and an output summing line having an associated capacitance. Connection between input and output lines in the... 

4961225 
Fuzzy data communication system
A fuzzy data communication system includes a first fuzzy computer storing fuzzy functions and rules, a transmitter compiling the fuzzy functions and rules stored in the first computer into a... 

4956564 
Adaptive synapse cell providing both excitatory and inhibitory connections in an associative network
The present invention covers a synapse cell for providing a weighted connection between an input voltage line and an output summing line having an associated capacitance. Connection between input... 

4951239 
Artificial neural network implementation
An artificial neural network having analog circuits for simultaneous parallel processing using individually variable synaptic input weights. The processing is implemented with a circuit adapted to... 

4947482 
State analog neural network and method of implementing same
A neural network is implemented by discretetime, continuous voltage state analog device in which neuron, synapse and synaptic strength signals are generated in highly parallel analog circuits in... 

4945257 
Electrically settable resistance device
A device provides an electrically settable resistance and comprises first and second electrodes. Each electrode comprises a redox active material. The device further comprises means defining an... 

4943556 
Superconducting neural network computer and sensor array
A combination of optical interconnect technology with superconducting matal to form a superconducting neural network array. Superconducting material in a matrix has the superconducting current... 

4941122 
Neural network image processing system
A neuralsimulating system for an image processing system includes a plurality of networks arranged in a plurality of layers, the output signals of ones of the layers provide input signals to the... 

4930099 
Wavefront vector correlation processor and method
A wavefront vector correlation processor provides rapid, weighted correlation of a given vector with other vectors in a given vector space. In one embodiment the processor includes an... 

4926064 
Sleep refreshed memory for neural network
A method and apparatus are disclosed for implementing a neural network having a sleep mode during which capacitively stored synaptic connectivity weights are refreshed. Each neuron outputs an... 

4918618 
Discrete weight neural network
A Neural Network using interconnecting weights each with two values, one of which is selected for use, can be taught to map a set of input vectors to a set of output vectors.A set of input vectors... 

4904881 
EXCLUSIVEOR cell for neural network and the like
A semiconductor cell for producing an output current that is related to the match between an input vector pattern and a weighting pattern is described. The cell is particularly useful as a synapse... 

4903226 
Switched networks
Techniques are described for making electronic neural networks with variable synapse strengths using the variability of transistor conductance or transconductance with gate bias and utilizing... 

4901272 
Variable phase compensating apparatus
A circuit arrangement is provided for phase compensation for a feedback amplifier circuit which has a variable gain depending upon the level of an input, so that a broadened frequency range in... 

4894795 
Highresolution technique for timefrequency signal analysis using modified wignerville analysis
An apparatus and method of improving the resolution of a linear FM signal s(t)=a(t)cos φ(t) where φ(t)=2π(so t+αt2) is provided by a modified computation of the WignerVille Distribution. An... 

4893255 
Spike transmission for neural networks
Pulse trains are utilized for the transmission of information in a neural network. A squash function is achieved by logically OR'ing together pulsed outputs, giving f(x) approximately 1ex. For... 

4888725 
Subtraction of wide band signals
A circuit for subtracting wide band signals without requiring an amplifier having good common mode rejection converts each wide band signal into opposing currents. A switching network applies the... 

4888724 
Optical analog data processing systems for handling bipolar and complex data
Optical analog data processing systems are described for handling both bipolar and complex data. Multicell spatial light modulators are employed in which a plurality of modulation areas are used... 

4885757 
Digital adaptive receiver employing maximumlikelihood sequence estimation with neural networks
A maximumlikelihood sequence estimator receiver includes a matched filter connected to a digital transmission channel and a sampler for providing sampled signals output by the matched filter. The... 

4874963 
Neuromorphic learning networks
A neuron network which achieves learning by means of a modified Boltzmann algorithm. The network may comprise interconnected input, hidden and output layers of neurons, the neurons being "onoff"... 

4875183 
Neural networks
The operation of neural networks begins with the initialization of the system with the information to be processed. Presently, this initialization is performed by pinning the system with rather... 

4873661 
Switched neural networks
Discretetime neural networks are implemented using switched capacitors, switches and inverters and advantage is taken of the inherent saturation of the inverters to implement the neuron... 

4862406 
Adaptive associativeprocessing optical computing architectures
An associative processing module adapts in real time as it is exposed to associated information patterns, (u,v), so, at a later time presentation of one pattern, u, results in recall of the other, v. 

4860243 
Fuzzy logic semifinished integrated circuit
A fuzzy logic circuit comprising a current mirror comprising an FET, a first input current source connected to the input side of the current mirror, a second input current source, a wired OR... 

4849940 
Optical neural net memory
An optical neural net, content addressable memory that does not include electronics or slow optics in the feedback path. The memory comprises an optical vectormatrix multiplier that includes a... 

4849925 
Maximum entropy deconvolver circuit based on neural net principles
Disclosed are two modifications of the TankHopfield circuit, each of which enables the deconvolution of a signal in the presence of noise. In each embodiment, the TankHopfield circuit is... 

4819199 
Extrema coder employing noisy limiting amplifier stages
An extrema coding circuit comprising a differentiator and a noisy limitingamplifier. The limitingamplifier may comprise any one of a number of commercially available limitingamplifier... 

4819200 
Realtime Ndimensional analog signal rotator
Apparatus and method for use with a cathode ray oscilloscope for displaying from any desired perspective a multidimensional surface evolving in time multi electrical signal are introduced to... 

4816027 
Disposable ostomy bag liner
An ostomy replacement, disposable pouch liner that is enclosed by an ostomy pouch on which a locking ring, having a plurality of raised projections or ridges, mate or seal with a projection... 

4815027 
Optical operation apparatus for effecting parallel signal processing by detecting light transmitted through a filter in the form of a matrix
In an optical operation apparatus, a light source emits a light intensitymodulated on the basis of a first electrical signal. A modulating device receives the light from the light source and... 

4809222 
Associative and organic memory circuits and methods
An OrganicLike Memory (OLM), i.e., one in which information already in storage is enhanced or degraded with each new access. The OLM typically consists of a conventional random access memory... 

4807168 
Hybrid analogdigital associative neural network
Random access memory is used to store synaptic information in the form of a matrix of rows and columns of binary digits. N rows read in sequence are processed through switches and resistors, and a... 

4787058 
Synthetic quadrature generating apparatus
A synthetic quadrature generating apparatus responsive to an input reference signal of the form SIN(wt) from an input reference signal source and to an error shifted quadrature signal of the form... 

4779211 
Position sensor
A position sensor has a detector having a plurality of sensitive elements which are acted on by indicia of a scale so that each sensitive element detects overlap between itself and one or more... 

4771397 
Method and apparatus for optical RF amplitude equalization
Amplitude equalization of a distorted multifrequency signal is accomplished by acoustomodulating the signal with a coherent light beam and focusing a resultant image on a Fourier plane where the... 

4771398 
Method and apparatus for optical RF phase equalization
Phase equalization of a phasedistorted multifrequency signal is accomplished by acoustooptic modulating a coherent light beam with the signal taking the optical Fourier transform with the... 

4764890 
Optical logic arrangement
An arrangement for performing an optical logic operation. The optical logic arrangement comprises a plurality (100) of reflection holograms (101109) positioned in a twodimensional array for... 

4764891 
Programmable methods of performing complex optical computations using data processing system
Methods of performing complex optical computations, preferably using a programmable optical data processor having a plurality of spatial light modulators to impress data onto a data beam. Data can... 

4764889 
Optical logic arrangement with self electrooptic effect devices
An arrangement for performing an optical logic operation. The optical logic arrangement comprises a plurality (100) of reflection holograms (101109) positioned in a twodimensional array for... 

4755963 
Highly parallel computation network with means for reducing the algebraic degree of the objective function
A highly interconnected analog network is constructed with interneurons that account for energy function terms of order greater than two. The network comprises analog amplifiers that are... 