| Patents for H04N 1 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof (142,802) |
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| 05/07/1991 | US5014124 Digital image processing apparatus |
| 05/07/1991 | US5014123 Film image reading system |
| 05/07/1991 | US5014100 Image sensor free from undesirable incident light rays which have not been reflected in the surface bearing the image to be sensed |
| 05/07/1991 | US5014075 Multibeam recorder using mirror reflected parallel scan lines |
| 05/07/1991 | US5014045 Radiation image read-out apparatus using menu |
| 05/07/1991 | US5013939 Thin-film transistor array |
| 05/07/1991 | CA1283953C Internal drum plotter |
| 05/04/1991 | WO1991006881A1 Visual image transmission by fibre optic cable |
| 05/04/1991 | CA2072654A1 Visual image transmission by fiber optic cable |
| 05/04/1991 | CA2029218A1 Fluid deposition system for producing processed color images |
| 05/03/1991 | CA2021624A1 Computerized tomographic image reconstruction method for helical scanning |
| 05/02/1991 | WO1991006175A1 Laser printer |
| 05/02/1991 | WO1991006174A1 Color digital halftoning with vector error diffusion |
| 05/02/1991 | WO1991006173A1 Device for making a printing film or colour separation film by means of a drum scanner |
| 05/02/1991 | WO1991006172A1 Process for providing digital halftone images with random error diffusion |
| 05/02/1991 | WO1991006171A1 Digital modulation technique |
| 05/02/1991 | WO1991006170A1 Apparatus for inputting colour images such as transparencies, video pictures, objects, wirephotos and texts for integrating a text and a colour image |
| 05/02/1991 | WO1991006169A1 Image processing work station |
| 05/02/1991 | WO1991006070A2 Electronic image lift |
| 05/02/1991 | WO1991006034A2 Illumination system for a film scanner |
| 05/02/1991 | WO1991006033A1 Down loading film access door assembly for electronic imaging apparatus |
| 05/02/1991 | WO1991006029A1 Beam position sensor for a light beam scanner |
| 05/02/1991 | EP0425321A2 Liquid crystal cells and their use for recording information or for projecting an image |
| 05/02/1991 | EP0425219A2 Electronic filing system |
| 05/02/1991 | EP0425133A2 An electronic graphic system |
| 05/02/1991 | EP0425089A2 Conditional motion compensated interpolation of digital motion video signals. |
| 05/02/1991 | EP0424967A2 Image signal processing device |
| 05/02/1991 | EP0424920A2 Method of and apparatus for obtaining tone curve |
| 05/02/1991 | EP0424885A2 Control apparatus of high speed/high quality printer |
| 05/02/1991 | EP0424880A2 A communication system comprising a called receiver and a communication apparatus |
| 05/02/1991 | EP0424854A2 Image processing apparatus for binarizing halftone image data by using an adaptive threshold |
| 05/02/1991 | EP0424786A2 Raster scanning system utilizing overfilled polygon facet design with non-reflective facet edges |
| 05/02/1991 | EP0424619A2 Still image video telephone transmission system |
| 05/02/1991 | DE4034936A1 Picture generator for printer - uses processor and integrated to provide signal for comparison with threshold value and output PWM |
| 05/02/1991 | DE4030795A1 Facsimile receiver with pluggable memory - automatically operates at high receiving speed with memory plugged in and low speed without |
| 05/02/1991 | DE3936127A1 Optical element selection device for colour electrographic copier |
| 05/02/1991 | CA2029119A1 Virtual facsimile machine |
| 04/30/1991 | US5012470 Data terminal equipment and data transmission control method |
| 04/30/1991 | US5012354 Travelling carriage driving apparatus |
| 04/30/1991 | US5012353 Apparatus for reading original |
| 04/30/1991 | US5012349 Method and portable device for detection, storage and for eventual processing and reproduction of graphic symbols appearing on any type of carrier |
| 04/30/1991 | US5012346 Illumination system for a film scanner |
| 04/30/1991 | US5012344 Solid-state image pickup device having shared output line for photoelectric conversion voltage |
| 04/30/1991 | US5012333 Interactive dynamic range adjustment system for printing digital images |
| 04/30/1991 | US5012259 Color recorder with gas laser beam scanning |
| 04/30/1991 | US5012257 Ink jet color graphics printing |
| 04/30/1991 | US5012089 Scanning beam control system and optical scale structure useful thereto |
| 04/30/1991 | US5011261 Color page scanner using fiber optic bundle and a photosensor array |
| 04/25/1991 | DE4017018A1 Stimulable sheet radiation image line scanner - has fluorescent rod within a high reflective shrouding for more effective light-electrical conversion |
| 04/24/1991 | EP0424175A2 Production of grey scale images using pixellated exposure devices |
| 04/24/1991 | EP0424174A2 Production of images using an array of light emitting diodes |
| 04/24/1991 | EP0424062A2 Process for assembling smaller scanning or printing arrays together to form a longer array |
| 04/24/1991 | EP0424061A2 Forming long arrays from short components |
| 04/24/1991 | EP0423930A1 Electronic graphic system using low resolution control image |
| 04/24/1991 | EP0423690A2 Fast image decoder |
| 04/24/1991 | EP0423654A2 Colour image processing apparatus |
| 04/24/1991 | EP0423310A1 Automatic brightness algorithm in a slide to video transfer unit |
| 04/24/1991 | EP0423150A1 A scanner system for successive irradiation of a working surface, particularly for ultra-violet exposure of a photo emulsion on a serigraphic printing frame |
| 04/24/1991 | CN1050934A Transformation method of picture grey scale for use in the production of copying picture without bias colour |
| 04/23/1991 | US5010580 Method and apparatus for extracting information from forms |
| 04/23/1991 | US5010498 Video printer |
| 04/23/1991 | US5010497 Image information recorder having a resolution density transformation device |
| 04/23/1991 | US5010420 Image processing apparatus |
| 04/23/1991 | US5010418 Image pick-up device |
| 04/23/1991 | US5010414 Process eliminating the use of a master positive film for making a duplicate negative of a color motion picture |
| 04/23/1991 | US5010398 Method for colour correction by dry dot etching using photographically produced mask |
| 04/23/1991 | US5010360 Image forming apparatus |
| 04/23/1991 | US5010353 Laser recorder with integrally molded deflector |
| 04/23/1991 | US5009527 Thermal transfer color printer with sheet retaining and guiding structure adjacent platen |
| 04/23/1991 | CA1283477C Correction of shading effects in video images |
| 04/23/1991 | CA1283441C Multiple information array registration apparatus and method |
| 04/21/1991 | CA2028051A1 Production of images using an array of light emitting diodes |
| 04/21/1991 | CA2028050A1 Production of grey scale images using pixellated exposure device |
| 04/18/1991 | WO1991005439A1 Adaptive transform coding system |
| 04/18/1991 | WO1991005432A1 Reproduction apparatus operation during malfunction recovery |
| 04/18/1991 | WO1991005271A1 Apparatus for scanning transparent phosphors |
| 04/18/1991 | WO1991005270A1 Telecentric scanning for transparent storage phosphors |
| 04/18/1991 | WO1991004864A1 Method to improve printing quality of grey scales and colour for printers |
| 04/18/1991 | DE4031418A1 X- and Y- axis scanner for type setting equipment - uses laser scanner movable in Y direction in low junction with plate movable in X direction |
| 04/18/1991 | CA2066041A1 Method to improve printing quality of grey scales and colour for printers |
| 04/17/1991 | WO1991006168A1 Line scanning apparatus using staggered linear segments with adjoining overlap regions |
| 04/17/1991 | EP0423019A1 Telecopies transmission method with quality test of the transmission path and transmission device for carrying out this method |
| 04/17/1991 | EP0423018A1 Device for transforming an image analysing signal into a binary signal |
| 04/17/1991 | EP0422957A2 Multiple beam optical modulation system |
| 04/17/1991 | EP0422956A2 Multiple beam exposure control |
| 04/17/1991 | EP0422927A2 Thermal printers |
| 04/17/1991 | EP0422926A2 Reciprocating-element position encoder |
| 04/17/1991 | EP0422925A2 Method and apparatus for interlaced printing |
| 04/17/1991 | EP0422924A2 Method and apparatus for reformatting print data |
| 04/17/1991 | EP0422870A2 Method of multi-tone printing |
| 04/17/1991 | EP0422793A2 Graphics scaling method for high resolution printers |
| 04/17/1991 | EP0422688A1 Image processing apparatus |
| 04/17/1991 | EP0422648A2 Label printer |
| 04/17/1991 | EP0422621A2 Image reading apparatus |
| 04/17/1991 | EP0422602A2 Method of and apparatus for recording color image |
| 04/17/1991 | EP0422588A2 Unscreening of stored digital halftone images by logic filtering |
| 04/17/1991 | EP0422544A2 Color image data processing apparatus |
| 04/17/1991 | EP0422447A2 Image data processing for an electronic still camera |
| 04/17/1991 | EP0422404A2 Transform coding using coefficient prediction techniques |
| 04/17/1991 | EP0422193A1 Process and device for converting a video image into an image with several gray levels |