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)
10/1991
10/16/1991EP0299964B1 Scanning apparatus
10/16/1991EP0235201B1 Document scanning system with multi camera mounting and alignment arrangement
10/15/1991US5058189 Apparatus and method for area designation on a document
10/15/1991US5058188 Manual scan type image reader for correcting read image data to faithfully reproduce read image
10/15/1991US5058186 Method and apparatus for image compression
10/15/1991US5058174 System and method for generating a pattern from an image
10/15/1991US5058038 Method to connect wide size scanner to laser printer engine for copying with size reduction
10/15/1991US5057943 Image scanning apparatus
10/15/1991US5057942 Electronic document scanner with a transparent imaging and drive roller
10/15/1991US5057941 Facsimile device
10/15/1991US5057939 Data compression
10/15/1991US5057938 Facsimile apparatus with error correction and improved switching means
10/15/1991US5057937 Facsimile device enabling efficient output to record sheet
10/15/1991US5057936 Copy quality monitoring
10/15/1991US5057933 Device for providing an image for video recording
10/15/1991US5057931 Tonal conversion method of pictures for producing reproduced pictures free of color-fog
10/15/1991US5057930 Plain paper cartridge for facsimile machine
10/15/1991US5057925 Still picture recorder utilizing a switch controlled timer
10/15/1991US5057924 Electronic still camera for converting and recording still image signal into a plurality of streams
10/15/1991US5057914 Method of processing colored image in multilevel gradations
10/15/1991US5057913 Hard copy simulator with stored data to correct for lighting conditions
10/15/1991US5057869 System for scanning signature pages
10/15/1991US5057861 Color image recorder and image projector useful therefor
10/15/1991US5057851 Method of exposing photosensitive medium for optimum density of reproduced image
10/15/1991CA1290852C Method and apparatus for block coding vertical mode codes for enhanced compression of image data
10/15/1991CA1290821C Readback recovery of run length limited codes
10/15/1991CA1290607C Auto portrait photo studio
10/14/1991CA2038541A1 Tfel edge emitter structure with uniform light emission filter
10/09/1991EP0451036A2 A document acknowledge system having horizontal/vertical-run length smoothing algorithm circuits and a document region divide circuit
10/09/1991EP0450937A2 Geometric vector quantization
10/09/1991EP0450895A2 Apparatus for recording and reproducing information
10/09/1991EP0450867A2 Hue compensation apparatus for a color hard copy machine
10/09/1991EP0450853A2 Color image communication apparatus and method
10/09/1991EP0450852A2 Color image communication apparatus
10/09/1991EP0450663A1 Image information processing system
10/09/1991EP0450643A2 Optical beam scanner
10/09/1991EP0450552A2 Image processing system
10/09/1991EP0450497A2 Facsimile apparatus
10/09/1991EP0450032A1 Electronic image lift
10/09/1991EP0302908B1 Color electrostatographic apparatus having an intermediate transfer member
10/09/1991CN1055271A Controller for g3 type simplex radio facsimile
10/08/1991US5056133 Data communication apparatus coupled to two telephone lines
10/08/1991US5055946 Image processing apparatus
10/08/1991US5055945 Broadcasting communication apparatus
10/08/1991US5055944 Image signal processing apparatus
10/08/1991US5055943 Method of and apparatus for recording halftone image
10/08/1991US5055942 Photographic image reproduction device using digital halftoning to screen images allowing adjustable coarseness
10/08/1991US5055940 Video memory control apparatus
10/08/1991US5055935 Control device for a digital copier with simultaneous operations for reading a succeeding image while reproducing a preceding image without interruption of either operation upon detecting an error with the operation
10/08/1991US5055923 Method of and apparatus for recording halftone images and halftone images produced thereby
10/08/1991US5055921 Color reading line sensor
10/08/1991US5055886 Image forming apparatus capable of forming copied images edited from an original image
10/08/1991US5055862 Film ghost removal in electrographic plotters by voltage bias of the plotter fountain or film edge-strip
10/08/1991US5055860 Image forming apparatus
10/08/1991US5055855 Pixel interval compensating method
10/07/1991WO1991015794A1 Scanner system with input capability
10/07/1991CA2057894A1 Scanner system with input capability
10/04/1991WO1991014959A1 Scanner with a post-facet lens system
10/04/1991CA2057904A1 Scanner with a post-facet lens system
10/03/1991WO1991015082A1 Payment activated image reproduction machine
10/03/1991WO1991015078A1 Method and apparatus for improving the color rendition of hardcopy images from electronic cameras
10/03/1991WO1991015077A1 Control device for a subscriber device for automatic switching of the type of communication
10/03/1991WO1991015076A1 Film constraint and illumination system
10/03/1991WO1991015075A1 Film constraint and film writing system
10/03/1991WO1991014965A1 Thin electronic book displaying a picture information
10/03/1991WO1991014578A1 Process and device for reducing the ink jet application on the paper in colour printing with an ink jet printer
10/03/1991WO1991014577A1 Thermal recording apparatus
10/02/1991EP0449637A2 Photoreceptor arrays
10/02/1991EP0449631A2 Still store system and method with simple image access
10/02/1991EP0449622A2 Still picture filing apparatus
10/02/1991EP0449588A1 A method of driving a thin film transistor type optical sensor and the drive unit
10/02/1991EP0449529A2 Image processing method and apparatus
10/02/1991EP0449528A2 Image processing apparatus
10/02/1991EP0449516A2 Image processing using neural network
10/02/1991EP0449498A2 Image reading apparatus
10/02/1991EP0449477A1 Colour image sensor
10/02/1991EP0449407A2 Apparatuses and methods for processing of data such as colour images
10/02/1991EP0449336A1 Method of and apparatus for setting original in image scanner
10/02/1991EP0449328A2 Image processing method and apparatus
10/02/1991EP0449313A2 Image processing method and apparatus
10/02/1991EP0449306A2 Digital image forming apparatus
10/02/1991EP0449259A2 Method and apparatus for emphasizing sharpness of image
10/02/1991EP0449210A2 Electronic zooming device
10/02/1991EP0449098A2 Image sensor having photodiodes of improved response to low intensity optical input
10/02/1991EP0449013A2 Image reader using CCD line sensors
10/02/1991EP0448669A1 Beam position sensor for a light beam scanner.
10/02/1991EP0448664A1 Apparatus for inputting colour images such as transparencies, video pictures, objects, wirephotos and texts for integrating a text and a colour image
10/02/1991DE4008968A1 Steuereinrichtung fuer eine teilnehmereinrichtung zum automatischen umschalten der kommunikationsart Control means for a subscriber device to automatically switch the communication
10/02/1991CN1014182B X-ray image pickup device
10/01/1991US5054099 Binary image reduction method
10/01/1991US5054098 Method of detecting the skew angle of a printed business form
10/01/1991US5054096 Method and apparatus for converting documents into electronic data for transaction processing
10/01/1991US5053898 Recording and/or reproducing apparatus, particularly with means for searching for vacant tracks
10/01/1991US5053896 Receiving method and apparatus for recording received data onto a recording medium
10/01/1991US5053888 Method of and apparatus for establishing highlight and shadow densities
10/01/1991US5053887 Technique for producing a fine grained dithered halftone image having an increased number of gray levels
10/01/1991US5053886 Method and apparatus for magnifying an image
10/01/1991US5053885 Copier with auto scaling, auto paper select, and window scaling
10/01/1991US5053879 Method and device for determining shading correction data, and for effecting shading correction in video printer
10/01/1991US5053867 Digital color image processing apparatus
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