Patents
Patents for H04N 1 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof (142,802)
11/1986
11/20/1986EP0201921A2 Fascimile apparatus
11/20/1986EP0201918A2 Method and apparatus for generating halftone dots
11/20/1986EP0201772A1 Facsimile apparatus
11/20/1986EP0201674A2 A method for reproducing multi-level digital images on a bi-level printer of fixed dot size
11/20/1986EP0201545A1 Clock signal producing apparatus
11/19/1986CN86102400A Facsimile decoding circuits
11/18/1986USRE32291 System for coding information change picture elements in facsimile signal
11/18/1986US4623973 Method and apparatus for the recognition of hues and colors
11/18/1986US4623972 Half-tone dot imaging
11/18/1986US4623938 Original image processing apparatus with improved cover
11/18/1986US4623937 Scanning apparatus
11/18/1986US4623936 Error processing technique for modified read code
11/18/1986US4623935 Picture extracting apparatus
11/18/1986US4623934 AGC update apparatus and method of using same
11/18/1986US4623922 System for time compression and/or expansion of electrical signals
11/18/1986US4623917 Color image data processing device featuring ghost elimination
11/18/1986US4623901 Method and apparatus for printing an image
11/18/1986US4623900 Image building apparatus
11/18/1986US4623875 Coding device for image processing apparatus
11/18/1986US4623791 Optical scanning device
11/18/1986US4623247 Document scanners
11/18/1986US4623239 Optical scanning system
11/12/1986EP0201234A2 Digital reading device for facsimile apparatus
11/12/1986EP0201025A2 Laser scanning and printing apparatus
11/12/1986CN86102295A Method and apparatus for data communication
11/12/1986CA1213989A Multiple measurement noise reducing system using space-variant filters
11/12/1986CA1213971A Image input apparatus
11/11/1986US4622596 Image pickup apparatus
11/11/1986US4622595 Image display unit capable of tone reproduction
11/11/1986US4622594 Image recording apparatus
11/11/1986US4622593 Polygon signature correction
11/11/1986US4622592 Composite facsimile apparatus
11/11/1986US4622591 Apparatus and method for precisely orienting originals on an image scanner drum
11/11/1986US4622585 Compression/decompression system for transmitting and receiving compressed picture information arranged in rows and columns of pixels
11/11/1986US4622582 Asynchronous color image processing system with a plurality of picture input units and a plurality of picture reproducing units selected in accordance with a predetermined order of preference
11/11/1986US4622561 Image forming method for dot matrix printer
11/11/1986US4622560 Line-wise interference/band suppression printing system
11/11/1986US4621892 Light scanning device using lenses
11/05/1986EP0200611A2 Color image processor
11/05/1986EP0200593A1 Document seizing, processing and compression apparatus
11/05/1986EP0200534A2 Method and apparatus for estimating halftone image from binary image
11/05/1986EP0200438A2 Digital reading device for facsimile apparatus
11/05/1986EP0200300A1 Nondestructive readout of a latent electrostatic image formed on an insulating material
11/05/1986CN86102403A Facsimile coding circuits
11/05/1986CN86102223A Nondestructive readout of a latent electrostatic image formed on an insulating material
11/05/1986CN86101893A Data communication apparatus
11/05/1986CN86101375A Control method for the moving of recording regions
11/04/1986US4621271 Apparatus and method for controlling a thermal printer apparatus
11/04/1986US4620768 Optical scanning system
10/1986
10/29/1986EP0199573A2 Electronic mosaic imaging process
10/29/1986EP0199469A2 Method for assigning values to a half-tone threshold matrix
10/29/1986EP0199454A2 Document reading apparatus
10/29/1986EP0199272A2 Monochromatic representation of color images
10/29/1986EP0199065A2 Method and apparatus for message compression in a facsimile communication system
10/29/1986CN85103886A Method and apparatus for sensing picture
10/28/1986US4620288 Data handling system for a pattern generator
10/28/1986US4620237 Fast scan jitter measuring system for raster scanners
10/28/1986US4620236 Image picture reading device
10/28/1986US4620235 Disc film scanning apparatus
10/28/1986US4620233 Facsimile transceiver utilizing orthogonal conversion
10/28/1986US4620200 Scan beam velocity-compensation recording system
10/28/1986US4620196 Method and apparatus for high resolution ink jet printing
10/28/1986US4620098 Radiation photographing apparatus
10/28/1986US4620097 Method of adjusting scale factor for radiation image
10/28/1986CA1213360A1 Teletext receiver
10/28/1986CA1213310A1 Message transmitting system for reproduction machines and copiers
10/22/1986EP0198813A2 Thermal transfer recording system and method
10/22/1986EP0198794A1 Cathode ray tube
10/22/1986EP0198571A2 Method and system for patching original and extracting original-trimming data in scanner
10/22/1986EP0198525A1 A device for determining a value representative of the amount of weak information of an original
10/22/1986EP0198396A2 Method and apparatus for data communication
10/22/1986EP0198380A2 Light beam scanning apparatus and read-out or recording apparatus using the same
10/22/1986EP0198161A1 Method for emphasizing sharpness in a picture signal reproducing machine
10/22/1986CN86101096A Print plotter
10/21/1986US4618990 Edge enhancement filtering for digital fluorography images
10/21/1986US4618883 Method of editing image signal
10/21/1986US4618869 Facsimile print out system employing an ink jet system printer
10/21/1986US4618846 Data coding
10/21/1986US4617727 Electrode comb and method and device for manufacturing
10/21/1986CA1213035A1 Device for the optical scanning of a document
10/21/1986CA1213034A1 Optical mark recognition for controlling input devices, hosts, and output devices
10/21/1986CA1213033A1 Data compression method for graphics images
10/21/1986CA1212988A1 Method and an apparatus for copying retouch in electronic color picture reproduction
10/15/1986EP0197734A2 Microform reading apparatus
10/15/1986EP0197538A2 Light beam scanning apparatus and read-out or recording apparatus using the same
10/15/1986EP0197527A2 Method for the digital transmission of information
10/15/1986EP0197251A2 Apparatus for correcting unevenness of light quantity in an optical reproduction system
10/15/1986CN86102311A 译码电路 Decoding circuit
10/14/1986US4617596 Image processing apparatus
10/14/1986US4617592 Video retouching system
10/14/1986US4617580 Apparatus for recording on different types of mediums
10/14/1986US4617578 Multi-beam zoom and focusing lens scan pitch-adjusting recorder
10/14/1986US4617470 Method and apparatus for detecting the leading edge of a sheet to be scanned
10/14/1986US4616926 Film video player/printer
10/09/1986WO1986005940A1 Multi-format laser printer embodying a method for changing output image sizes
10/09/1986WO1986005901A1 Apparatus and method for modifying color digital images
10/08/1986EP0196914A1 Image reading apparatus
10/08/1986EP0196851A2 Photographic copier image contrast control
10/08/1986EP0196405A2 Color picture reader and method for operating the same
10/08/1986EP0085066B1 Method for rastering half-tone images