Matches 701 - 750 out of 862 < 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 >
Match Document Document Title
3592547 OPTICAL MATRIX-PROCESSING SYSTEM AND OPTICS  
An optical processing system which performs a general matrix transformation. Analog data to be transformed is entered as a first set of inputs written upon a first writing medium in the form of...
3592548 HOLOGRAPHIC METHOD OF DIMENSIONAL INSPECTION  
To dimensionally compare one contour surface with another, one surface is provided with a contrast pattern and a hologram is made of that surface. Then the hologram is reconstructed and the image...
3584958 IDENTIFICATION SYSTEM  
An identification system for identifying an individual, the system including record means for containing a coded representation of the individual's fingerprint, means for taking the individual's...
3582215 OPTICAL COMPARISON DEVICE  
A comparison device in which objects to be compared are arranged in side-by-side relation and when viewed through a mirror system are caused to appear as one object with each object being viewed by...
3578846 MULTIPLE-STAGE OPTICAL INFORMATION PROCESSING SYSTEM  
An optical pattern recognition system is disclosed which has multiple reference-pattern capability and materially decreases the space occupied as compared with the prior art. These advantages flow...
3572880 ELIMINATING A PERTURBATION WHEN FORMING A HOLAGRAPHIC SPATIAL FILTER  
The present invention relates to a method of eliminating perturbation between a reference beam and a source beam during the formation of a hologram. A Fraunhofer diffraction pattern of the subject...
3571603 OPTICAL READER AND CHARACTER IDENTIFICATION SYSTEM UTILIZING A TWO-DIMENSIONAL DIFFRACTING MEANS  
A source of collimated coherent light is arranged to impinge upon a charar to be identified and a two-dimensional diffraction means is positioned in the path of the collimated light passing through...
3564268 DOCUMENT VERIFIER USING PHOTOVOLTAIC CELL WITH LIGHT SENSITIVE BARS  
A dollar bill verifier including a photovoltaic cell having light sensitive bars approximately the same width as the black grid lines on the bill. An amplifier receives the output of the cell and...
3564213 ARRANGEMENT FOR REDUCING ERRORS IN DOUNTING LINE SEGMENTS OF A ZIGZAG LINE DIAGRAM  
To reduce errors due to surface imperfections of a zigzag line diagram, the line diagram is scanned along two parallel paths parallel to the center line of the diagram and on opposite sides...
3553463 RADIATION SENSITIVE DOCUMENT SCANNING APPARATUS USING HELICAL SCANNER  
Apparatus for scanning a document in which a document is supported on a support member and flood illuminated at a scanning station as it is advanced in relation thereto. The illuminated image of...
3550084 SYSTEM AND METHOD FOR IDENTIFYING A SET OF GRAPHIC CHARACTERS GROUPED TOGETHER ON A VISIBLE INFORMATION DISPLAY  
3548195 DOCUMENT SCANNING RADIATION SENSITIVE MEANS  
3546377 VIDEO COMPARATOR USING VIDICONS WITH DELAYED SCANNING  
3544197 OPTICAL CROSSCORRELATION  
3544224 METHOD FOR MEASURING THE OPTICAL TRANSMISSION CHARACTERISTICS OF TRANSPARENT AND TRANSLUCENT MEDIA AND OPTICAL DIFFRACTOMETER FOR CARRYING OUT THIS METHOD  
3539260 METHOD AND APPARATUS FOR AUTOMATIC ALIGNMENT OF COHERENT OPTICAL SPATIAL FREQUENCY FILTERS  
3539777 DATA SENSING SYSTEM  
3536927 LIGHT AND PHOTOCELL UNIT FOR SORTING APPARATUS  
3532426 HOLOGRAPHIC FINGERPRINT IDENTIFICATION  
3527535 FINGERPRINT OBSERVATION AND RECORDING APPARATUS  
3524706 METHOD AND APPARATUS FOR OPTICALLY PROCESSING SEISMIC DATA USING SPATIAL FILTERING TECHNIQUES  
3524195 DECONVOLUTION OF VARIABLE OPTICAL DENSITY RECORDS  
3520610 PARTICLE DISTRIBUTION READOUT USING HOLOGRAPHIC METHODS  
3511571 METHOD AND APPARATUS FOR COMPARING PATTERNS  
3510659 SET OF DIFFERENTLY CODED COUNTERPIECES AND APPARATUS FOR SENSING THE SAME  
3510223 OPTICAL CROSS-CORRELATION AND CONVOLUTION  
3508808 DIGIT LIGHT DEFLECTOR  
3504974 GEOPHYSICAL DATA PROCESSING TECHNIQUE  
3503684 METHOD AND APPARATUS FOR DETECTING MITOTIC BLOOD CELLS ON A BLOOD CELL SAMPLE SLIDE  
3501238 METHOD AND APPARATUS FOR ENHANCING DIFFERENCES BETWEEN SIMILAR SPATIAL SIGNALS  
3497704 AUTOMATIC PHOTO-CULTURE DETECTION SYSTEM FOR DETERMINING THE PRESENCE AND LOCATION OF LOW CURVATURE OBJECTS IN PHOTOGRAPHIC DATA  
3496371 APPARATUS FOR COMPARING SAMPLE DOCUMENT TO STANDARD INCLUDING CORRELATION  
3494577 MAP MATCHING GUIDANCE SYSTEM  
3493736 ELECTRO OPTICAL CORRELATOR APPARATUS  
3492469 OPTICAL SYSTEM FOR AUTO-CORRELATING AND AUTO-CONVOLVING RECORDED SIGNALS  
3491243 AUTHENTICATION APPARATUS TO MEASURE COLOR CHARACTERISTICS OF PAPER DOCUMENTS  
3488124 READOUT OF A DIFFRACTION GRATING PATTERN BY ACHROMATIZING THE DIFFRACTION SPECTRA INTO LINES OF POLYCHROMATIC LIGHT  
3486016 COHERENT SIMULTANEOUS CROSS-CORRELATING SIGNAL SEPARATOR  
3483513 HOLOGRAPHIC MATCHED FILTER PATTERN RECOGNITION TECHNIQUE  
3480785 METHOD AND APPARATUS FOR VALIDATING DOCUMENTS BY SPECTRAL ANALYSIS OF LIGHT REFLECTED THEREFROM  
3471832 CHARACTER RECOGNITION APPARATUS  
3463590 CREDIT CARD IDENTIFICATION DEVICE  
3462225 PAPER SECURITY VALIDATION APPARATUS  
3461301 REFERENCE SYMBOL CHANGER FOR CHARACTER RECOGNITION DEVICE  
3457013 OPTICAL CORRELATION NAVIGATION SYSTEM  
3457421 RADIATION SENSITIVE PAPER SECURITY VALIDATION APPARATUS  
3453596 PATTERN RECOGNITION APPARATUS  
3453048 PARTIALLY COHERENT OPTICAL CORRELATOR  
3451755 PARTICLE SIZE AND DISTRIBUTION ANALYSIS USING SPATIAL FILTERING TECHNIQUES  
3443098 ELECTROSTATICALLY CONTROLLED LIGHT MODULATOR  
Matches 701 - 750 out of 862 < 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 >