Patents
Sitemap › H04 - Electric communication technique › H04N - Pictorial communication, e.g. television › H04N 1 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
Patents for H04N 1 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof (142,802)
09/1990
09/18/1990US4958219 Color image forming apparatus
09/18/1990US4958218 Image processing method and apparatus with dot-processing
09/18/1990US4958217 Image processing apparatus and method capable of extracting a particular image area using either hue or brightness
09/18/1990US4958187 Image forming apparatus for scanning both sides of an original and producing a duplex copy
09/18/1990US4957689 Scanning and printing apparatus
09/18/1990CA1274315A1 Digital imaging file processing system
09/13/1990DE4007205A1 Einzelbild-videogeraet Still image videogeraet
09/12/1990EP0387013A1 Data encoding
09/12/1990EP0386741A2 Semiconductor laser driving apparatus
09/12/1990EP0386415A1 Image processing device
09/12/1990EP0386254A1 Scanning circuit device
09/11/1990WO1990010996A1 Electronic method and apparatus for stereoscopic photography
09/11/1990US4956876 DC decoupled radio communication system
09/11/1990US4956860 System for reporting status data in a facsimile network
09/11/1990US4956723 Recording apparatus with sheet size selection
09/11/1990US4956722 Image processing apparatus
09/11/1990US4956721 Method of facsimile transmission after collection of facsimile charge and apparatus therefor
09/11/1990US4956718 Tonal conversion method for pictures
09/11/1990US4956714 Image pickup apparatus
09/11/1990US4956705 Electronic method and apparatus for stereoscopic photography
09/11/1990US4956703 Print simulation apparatus for adjusting the color separation conditions of a color scanner
09/11/1990US4956702 Imaging apparatus including three laser diodes and a photographic element
09/11/1990US4956670 Electrostatic latent image forming apparatus controlling the direction of derivation of ions
09/11/1990US4956667 Priority interrupt during editing mode
09/11/1990US4956664 Image processing apparatus having an overhead projector
09/11/1990US4956638 Display using ordered dither
09/11/1990US4956547 Apparatus for sensing information on both sides of documents
09/11/1990CA2027539A1 Electronic method and apparatus for steroscopic photography
09/11/1990CA1274025A1 Soft copy display of facsimile images
09/11/1990CA1274021A1 Resolution conversion of bitmap images using error term averaging
09/08/1990WO1990010991A1 Method and apparatus for producing half-tone separations in color imaging
09/08/1990CA2050289A1 Method and apparatus for producing half-tone separations in color imaging
09/07/1990WO1990010355A1 Improved method and apparatus of image mensuration with selectively visible and invisible reseau grid marks
09/07/1990WO1990010349A1 Security facsimile transmission system
09/07/1990WO1990009890A1 Printer that effects gradation recording
09/06/1990DE3906707A1 Still frame camera
09/05/1990EP0385866A2 Colour video printer
09/05/1990EP0385743A2 Apparatus and method for electrophotographically printing continuous half-tones
09/05/1990EP0385691A2 Digital image editing system
09/05/1990EP0385654A2 Highly efficient coding apparatus
09/05/1990EP0385421A2 Image processing apparatus
09/05/1990EP0384963A2 Apparatus for electrophotography representing half-tones
09/05/1990EP0263871B1 Identifying color dye frames in carrier used in thermal printer
09/05/1990EP0221133B1 Method of detecting and printing color photographic images exposed with narrow band illuminant
09/05/1990CN1009522B Recording method of printing plate
09/04/1990US4955067 Radiation image read-out apparatus
09/04/1990US4955065 System for producing dithered images from continuous-tone image data
09/04/1990US4955061 Method and apparatus for processing an image signal
09/04/1990US4954914 Apparatus for reading an image
09/04/1990US4954913 Image reading apparatus
09/04/1990US4954912 Image generating apparatus
09/04/1990US4954910 Recorder displaying recording sheet quantity available on remaining web sheet supply
09/04/1990US4954889 Color masking circuit and color video printer using the same
09/04/1990US4954888 Apparatus for reading and digital processing of color images
09/04/1990US4954887 Apparatus for forming color graphic arts films for an original plate
09/04/1990US4954883 Interweave picture comparison apparatus and method
09/04/1990US4954703 Color line sensor apparatus
09/04/1990US4954197 Process for assembling smaller arrays together to form a longer array
09/04/1990US4953926 Scanning optical system for use in a laser beam printer
09/04/1990CA1273703A1 Method of pixel to vector conversion in an automatic picture coding system
09/04/1990CA1273676A1 Compensation for fine line prints
09/04/1990CA1273512A1 Sheet containing directional photographic images and method for making the same
08/1990
08/30/1990DE4005830A1 Calculating coefficients of discrete cosine transformation - handling picture elements via remote transmission while fractionated
08/30/1990DE3906222A1 Electronic method for improving the quality of a line image
08/29/1990WO1990010251A1 Automatic picture taking machine
08/29/1990EP0384708A2 Optical reading apparatus
08/29/1990EP0384274A2 Manufacturing method of a multi-layered identification card
08/29/1990EP0383956A1 Method for inscribing an image by laser and apparatus for carrying out this method
08/29/1990EP0383834A1 Voice/data switch
08/29/1990CN1009413B Image signal processor
08/28/1990USRE33316 Apparatus for cataloging and retrieving image data
08/28/1990US4953230 Document image processing system
08/28/1990US4953229 Image processing apparatus
08/28/1990US4953227 Image mosaic-processing method and apparatus
08/28/1990US4953199 Interface apparatus for communication terminal equipment units
08/28/1990US4953114 Image signal processing apparatus
08/28/1990US4953104 Page buffer for an electronic gray-scale color printer
08/28/1990US4953037 Original reading apparatus
08/28/1990US4953036 Digital copier having switchable pixel densities
08/28/1990US4953023 Coding apparatus for encoding and compressing video data
08/28/1990US4953015 Method for printing a color image which includes black ink
08/28/1990US4953014 Image processing apparatus compensating for distance between document portions read by respective sensors
08/28/1990US4953013 Color image processing device
08/28/1990US4953012 Image processing system for combining a character image with an image including a gray level
08/28/1990US4953000 Semiconductor device
08/28/1990US4952972 Life expiration detector for light source of image processing apparatus
08/28/1990US4952951 Electrophotographic recording apparatus
08/28/1990US4952946 Scanning beam position detecting apparatus for use in electronic printer
08/28/1990US4952807 Method of adjusting radiation image read-out conditions and image processing conditions
08/28/1990US4952785 Bar code generating apparatus for image communication terminal device
08/28/1990US4952022 Fiber optic line illuminator with deformed end fibers and method of making same
08/28/1990US4952011 Moving apparatus for optical systems
08/28/1990US4952005 Adjustable mirror assembly
08/23/1990WO1990009717A1 Video dekstop camera
08/23/1990WO1990009619A1 Device for producing separation films for print reproduction
08/23/1990DE4005494A1 Semiconductor device with matrix wiring section - has three conductive layers separated by insulating layers, semiconductor, and doped contact layer
08/23/1990DE4005324A1 Photoelectric converter for copier and facsimile - passes light from source through document, transparent support, and substrate to converter
08/23/1990DE4005171A1 Facsimile appts. coupled to telephone terminal
08/23/1990DE4001613A1 Binary conversion process for picture data - counting black pixels with threshold changed from darkest to lightest tone level for pattern recognition
08/22/1990EP0383398A2 Method for reducing a pattern, and apparatus for carrying out this method
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