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4703993 Method and apparatus for making a device for optically interconnecting optical devices  
Method and apparatus for making a plurality (100) of reflection holograms (101-109) positioned in a two-dimensional array to interconnect optically a plurality (120) of optically nonlinear optical...
4696061 Acousto-optic R-F receiver which is tunable and has adjustable bandwidth  
There is disclosed an acousto-optic filtering apparatus which includes Bragg cells in the signal path and in the local oscillator reference path of the apparatus in order to permit relatively high...
4695973 Real-time programmable optical correlator  
A real-time programmable joint transform optical correlator incorporating a magneto-optic spatial light modulator and a liquid crystal light valve therein. Object functions to be correlated are...
4695790 RF frequency spectrum analyzer subsystem  
A spectrum analyzer subsystem for analyzing the frequency content of an RF signal including an optical source means responsive to an RF signal for generating a plurality of intensity modulated...
4672439 FLIR imager with hybrid optical/electronic processor  
A FLIR imager is modified to include a hybrid optical/electronic processor for automatic local area dynamic range normalization. FLIR imagers have an objective lens for focusing IR energy...
4670854 Optical cross-correlation and convolution apparatus  
Cross-correlation or convolution or a succession of such operations is performed by exposing an inhomogeneously broadened material to optical radiation pulses modulated in accordance with the...
4669054 Device and method for optically correlating a pair of images  
A two-dimensional optical correlation apparatus includes a transmissive optical mask having a transmissivity pattern corresponding to a two-dimensional reference image and an input image buffer...
4660167 Space-multiplexed time-integrating acousto-optic correlators  
Space multiplexed time integrating acousto-optic correlators can achieve multiple signal correlations with an infinite range delay search. In some embodiments, two stage synchronization may be...
4651297 Two-dimensional image correlator  
The electro-optical correlator performs pattern-recognition by forming the columnar dot product of an input image with a reference image at video through-put rates. The correlator incorporates an...
4647154 Optical image processor  
An optical processing system based on noncoherent light processing employs both geometrical and diffraction optical systems. One portion of the optical system performs a subtraction operation of...
4641273 General time, space and frequency multiplexed acousto-optic correlator  
Time, space and frequency multiplexed time integrating acousto-optic correlators and exemplary uses thereof. The correlators utilize a plurality of radio frequency (RF) modulators, each operating...
4637056 Optical correlator using electronic image preprocessing  
An optical processing system uses spatial filtering to recognize two-dimensional functions and images. Images of real objects are captured with a television camera. The electronic signals...
4634230 Multi dimensional instantaneous optical signal processor  
A 3 or more - dimensional optical processor for simultaneously processing ree or more parameters from a coherent emitter via an acoustic Bragg cell. For a 3-D processor, two separate antenna...
4633427 Advanced cube processor  
An apparatus and method provide for the electrooptic performing of matrix-matrix multiplication, computation of the cross-ambiguity function and calculation of triple correlations. A collimated...
4628473 System for autocorrelating optical radiation signals  
The invention provides a system with no moving parts for autocorrelating optical radiation signals. An incident optical radiation signal is first divided into first and second optical beams which,...
4620290 Transmission line dividers multipliers Fourier transformers and convolvers  
A transmission line is used to implement a divider or multiplier. Transmission lines are used to implement coefficient multipliers in Fourier transformers and Convolvers.
4613204 D/A conversion apparatus including electrooptical multipliers  
Apparatus (FIG. 1) receives electrical input potentials (11A-11D) representing components, e.g. coefficients (zero or one), of weighted digital input data, and provides analog optical output (12)...
4607344 Triple matrix product optical processors using combined time-and-space integration  
A triple matrix product processor for optically multiplying three matrices U. G, and V, comprising a matrix-vector processor for sequentially multiplying each column of an M×N matrix G by at least...
4604707 Device and method for comparing optical signals  
An optical comparator for comparing, bit by bit, corresponding bits of two optical digital signals which are identical in the number of constituent optical bit signals, includes an optical...
4602852 Acousto-optic deflector systems  
An acousto-optic deflector system including first and second transducers for producing acoustic waves for interaction with an optic beam in an acousto-optic device. The transducers are driven by...
4588255 Optical guided wave signal processor for matrix-vector multiplication and filtering  
An array (48, 49, 50, 51) of fiber optic couplers coupling an input (45) and an output (46) waveguide. The output waveguide (46) is routed among the couplers of the array such that either backward...
4588260 Phase-only optical filter for use in an optical correlation system  
A phase-only optical filter capable of being utilized within a phase-only optical correlation system. The phase-only optical filter is made by mathematically generating preselected phase-only...
4566760 Multi-product acousto-optic time integrating correlator  
A device for processing signals to obtain a multi-product, time integrated, correlated output signal. A laser light beam is expanded and shaped into a sheet beam which is directed across the...
4566757 Holographic optical processing method and apparatus  
A method and apparatus for performing optical processing on optical information corresponding to a subject (66) combines known optical processing techniques with holography. A reverse ray-trace...
4558925 Multi-function acousto-optic signal processor  
An acousto-optic architecture is provided for simultaneously obtaining time integration correlation and power spectrum analysis. A laser beam is expanded and split into first and second beams. The...
4556986 Optical stereo video signal processor  
An optical video signal processor which produces a two-dimensional cross-correlation in real time of images received by a stereo camera system. The optical image of each camera (12, 14) is...
4547864 Correlation detecting device  
The present invention relates to a correlation detecting device which has an analog shift register consisting of a pair of minor loops, a difference detection circuit to form signals for...
4544230 Method of evaluating a polynomial function using an array of optical modules  
Methods and apparatus for providing an optical analog quantity proportional to ##EQU1## Input light (a4) of intensity proportional to an is directed (21,31) to the input end of an nth optical...
4544229 Apparatus for evaluating a polynomial function using an array of optical modules  
Methods and apparatus for providing an optical analog quantity proportional to ##EQU1## Input light (a4) of intensity proportional to an is directed (21,31) to the input end of an nth optical...
4539651 Optical correlator  
An optical correlator having a series of optical elements necessary for providing the comparison or correlation of incoming optical signals and for providing a readout beam representive of the...
4533211 Frequency multiplexed optical spatial filter based upon photochemical hole burning  
A frequency multiplexed optical spatial filter is based upon a thin film of a photochemical hole burning material. The filter stores a plurality of images in the photochemical hole burning medium....
4531197 Real-time Fourier transformer using one acousto-optical cell  
An optical Fourier transformer comprising an acousto-optical cell such as a Bragg cell upon which is impressed a chirp signal, a laser which is modulated by the signal to be analyzed, optical...
4531195 Polychromatic time-integrating optical processor for high-speed ambiguity processing  
A signal processor for generating the ambiguity integral using a modulatable, broadband, incoherent light source, a multiplicity of acousto-optic cells and diffraction gratings, and a...
4523293 Two-dimensional bulk acoustic wave correlator-convolver  
A two-dimensional bulk acoustic wave correlator-convolver having an acoustic mirror positioned two focal lengths from an integrated circuit-acoustic transducer array. The image, rather than the...
4522466 Recursive optical filter system  
An optical notching or filtering system in which a beam of optical radiation is passed through the optical filtering means a multiplicity of times. The optical filtering means has an optical...
4519046 Signal processing apparatus and method  
Signal processing, particularly correlation and auto-correlation, is effected using a "light panel". The light panel consists of (a) an array of two-terminal light-emitting or light-modulating...
4514038 Optical Fourier transformer device and optical correlator incorporating the said device  
This optical Fourier transformer device supplying the correlation function of two motifs of an object illuminated in coherent light by using the double diffraction principle is essentially...
4514059 Incoherent optical heterodyne Fourier transformer  
An apparatus for performing an incoherent optical Fourier transform inclu a source of incoherent light, means for generating and phase modulating a first zone plate, a second zone plate, means for...
4505544 Spatial frequency multiplexed coherent optical processor for calculating generalized moments  
An optical processor that can compute the moments of a two-dimensional image in parallel. The image is placed at the plane of a holographic mask which is disposed in the front focal plane of a...
4487476 Method of multivariant intraclass pattern recognition  
A method of recognizing different perspective views or images (i.e., multivariant views) of the same object (i.e., intraclass patterns). Each intraclass pattern, or different representation of the...
4472786 Analog Gaussian convolver  
An analog Gaussian convolver for performing high speed convolutions of arrary functions (e.g. image arrays) with masks or operators which uses two units of 2-dimensional Gaussians G(u,v) and the...
4468093 Hybrid space/time integrating optical ambiguity processor  
A hybrid space/time integrating optical ambiguity processor in which time-sequential segments of a spatially modulated optical signal are received in a two-dimensional optical modulator. The...
4468084 Integrated optical time integrating correlator  
An optical time integrating correlator is fabricated in integrated optical form. This integrated optical implementation comprises a number of integrated components including an optical waveguide...
4462046 Machine vision system utilizing programmable optical parallel processing  
An object or scene viewed by the programmable optical processor based machine vision system is converted into a video signal representative of a spatial orientation and position of a viewed object...
4440472 Space integrating ambiguity processor  
A space integrating optical ambiguity processor in which two one-dimensional modulators provide two-dimensional processing capability. Signals to be processed drive orthogonal Bragg cells oriented...
4415226 Apparatus for controlling light in electrooptic waveguides with individually addressable electrodes  
Apparatus for receiving light entering therein and controlling the directions in which portions of the light travel therethrough. Input means (21) directs portions (22) of the entering light (20)...
4404631 Method of and device for coding and decoding an image of an object by means of penetrating radiation  
A method of and a device for the coding and decoding of an object by means of point-shaped radiation sources. The point sources are subdivided in groups which successively irradiate the object....
4389092 High speed ambiguity function evaluation by optical processing utilizing a space variant linear phase shifter  
A system for using optical data processing means to create the ambiguity function for two signals is disclosed. One-dimensional spatial light modulators are employed to code the signals into a...
4389093 Method and apparatus for coherent detection in optical processors  
A method of and an apparatus for coherently detecting modulated optical signals employing optical mask-generated signals is disclosed. A spatial light modulator modulates a source beam with an...
4371946 Servomechanism for doppler shift compensation in optical correlator for synthetic aperture radar  
A method and apparatus for correcting doppler shifts in synthetic aperture radar data. More particularly, in an optical correlator (10) for synthetic aperture radar data having a means for...

Matches 151 - 200 out of 330 < 1 2 3 4 5 6 7 >