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| Number | Title | Issue Date |
| 4513390 | System for digital transmission and synthesis of integrated data An image acquisition subsystem, electronic processing subsystem and workstation subsystem produce information management networks that are almost unlimited in size and scope in integrating data and information stored in both digital form and in human read... | 04/23/1985 |
| 4491963 | Correction of imaging imperfections A system is provided for automatically correcting imaging irregularities in a document scanner which uses an electronic imaging detector. This system avoids the need of expensive correction methods and is accomplished through an electronic system whereby ... | 01/01/1985 |
| 4486781 | Video signal white level corrector A video signal white level corrector wherein a digital memory is used to store a correction signal which is applied to a signal multiplier to remove white level shading which results from optic and beam misalignment of a scanner. Video signals are applied... | 12/04/1984 |
| 4467364 | Device for measuring amount of tone correction A device used, when a color printing block is produced from a color photographic film in accordance with color scanner technique, for compensating a difference in color density between photograph and print and arranged to measure accumulative density dist... | 08/21/1984 |
| 4389677 | Method and apparatus for removing erroneous elements from digital images A method and apparatus for removing erroneous data elements from digital images by systemically moving a window memory over the entire area of an image. Each data element in the image is examined with respect to neighboring elements by comparing the conte... | 06/21/1983 |
| 4385322 | Pattern recognition apparatus and method Video information obtained in real time is clocked and digitized according to light intensity. Changing light intensities are adaptively determined to vary the threshold level for determining black and white signals. The scene to be used as a reference is... | 05/24/1983 |
| 4351004 | CCD Imager A CCD imager is provided with an adaptive threshold circuit. The variations in the illumination across the document being read by the imager are compensated for by the adaptive threshold circuit to accurately provide an accurate digital representation of ... | 09/21/1982 |
| 4346409 | Method of and apparatus for processing a radiographic image A method of and apparatus for processing a radiographic image in a radiographic image recording system in which an image on a radiographic film is scanned and read out by a detector which gives an output to be processed and used for recording a visible im... | 08/24/1982 |
| 4339774 | Apparatus and method for generating a dispersed dot half tone picture from a continuous tone picture Apparatus and method for generating a dispersed dot half tone picture from a continuous tone picture involves the making of a thresholding decision at each picture element to decide whether or not a dot is printed in the output picture and is characterize... | 07/13/1982 |
| 4300164 | Adaptive video processor In a pattern recognition system the video output signal is a signal representative of either black or white. The shading effect of the video camera is minimized by using a high pass filter to accentuate the high frequency components of the signal by parti... | 11/10/1981 |
| 4276567 | Recording line elements The invention is applicable in the sphere of the preparation of printing blocks or forms by means of electronic color scanners. The recording of line elements (lettering, signals, edge spike, etc.) by such scanners is concomitantly performed by selective ... | 06/30/1981 |
| 4271436 | Digital copying machine A digital copying machine is provided with a scanner system, a data processing and transferring system, a plotter system, and a control system for controlling these system. The data processing and transferring system comprises means for converting the out... | 06/02/1981 |
| 4129853 | Method and apparatus for producing compensated signals for individual light sensors arranged in a predetermined relation The output signal from each light sensor of a solid state array is compensated for variations due to dark scan noise levels, which are due to fixed pattern noise and sensor leakage, produced by the individual light sensors and variations in the light cond... | 12/12/1978 |
| 4128830 | Apparatus for providing a compensation signal for individual light sensors arranged in a predetermined relation The dark scan noise level produced from each of a solid state array of light sensors is obtained by preventing light from being received by each of the light sensors for a predetermined period of time. This signal is converted into a digital signal and st... | 12/05/1978 |
| 4092668 | Correction circuit for a color scanner An improved color adjustment circuit for a color scanner in which a photoelectric scanning device obtains color signals and which supplies separated output signals to color correction circuits and wherein the output of the scanning device can be disconnec... | 05/30/1978 |
| 4044384 | Optical scanning apparatus A scan line of an original document is divided into first and second halves, and first and second optical systems focus first and second images of the first and second halves onto a linear array of photosensitive elements such as photodiodes. The first an... | 08/23/1977 |
| 3961366 | Apparatus for exposing a light-sensitive layer An apparatus for exposing a light-sensitive layer employed for the manufacture of reproductions of black-and-white or colored patterns, wherein the image of the pattern which has been projected onto a support is taken or scanned by means of an electronic ... | 06/01/1976 |
| 3952144 | Methods and apparatus for automatic background and contrast control An automatic background and contrast control unit is used in a facsimile transmitter or receiver unit and operates on the uncorrected video signal representing the shade of source document areas being scanned to produce a corrected output signal which acc... | 04/20/1976 |
