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)
04/1982
04/27/1982CA1122710A1 Means for scale-changing raster scanned data
04/27/1982CA1122475A1 Laser scanner transport
04/21/1982EP0050010A2 Method of and system for laser beam recording
04/20/1982USRE30911 Optical scanning and encoding device
04/20/1982US4326258 Method and apparatus for reducing the gray scale resolution of a digitized image
04/20/1982US4326222 Method of and apparatus for facsimile sheet feeding
04/20/1982US4326217 Reversed image sensing apparatus
04/20/1982US4326202 Image memory device
04/20/1982CA1122260A1 Self tracking laser scanning apparatus
04/14/1982EP0049622A1 Electro-optic wave guide modulator
04/14/1982EP0049388A2 Video signal detector
04/14/1982EP0049359A2 Colour separation scanner and method of operation
04/13/1982US4325086 Recording device
04/13/1982US4325085 Method and apparatus for adaptive facsimile compression using a two dimensional maximum likelihood predictor
04/13/1982US4325070 Recording head for facsimile receivers
04/13/1982CA1121902A1 Method for improving print quality of coarse- scan/fine-print character reproduction
04/13/1982CA1121734A2 Electronic halftone generator
04/13/1982CA1121733A1 Optical scanner with a constant scan rate system
04/13/1982CA1121732A1 Method and apparatus for engraving printing forms
04/13/1982CA1121625A1 Optical scanner using plane linear diffraction gratings on a rotating spinner
04/07/1982EP0049165A1 Raster scanners
04/07/1982EP0049164A2 Optical system
04/07/1982EP0049162A1 Laser alignement apparatus
04/07/1982EP0049076A1 A method of information recording on a semiconductor wafer
04/07/1982EP0049048A1 Fluorescent activated, spatially quantitative light detector
04/06/1982US4323974 Method of restoring a picture through estimation
04/06/1982US4323928 Copying process for producing a seamless copy from an unjointed original
04/06/1982US4323927 Bar for printing an image
04/06/1982US4323925 Method and apparatus for arraying image sensor modules
04/06/1982US4323919 Optical scanner for reading data recorded in plural colors
04/06/1982US4323906 Device for correcting pitch of scanning lines in a light beam recording system
04/06/1982US4323307 Light beam scanning apparatus
04/06/1982US4323297 Image forming optical system using a semiconductor laser
03/1982
03/31/1982EP0048625A1 Printer interface unit with data transformation
03/31/1982EP0048595A1 Line printers
03/30/1982US4322734 Variable speed electrostatographic apparatus
03/30/1982US4322733 Heat sensitive recording head drive device
03/30/1982US4322157 Copying machine
03/30/1982US4322063 Suspension for an oscillating bar
03/30/1982CA1121044A1 Cover mounted holddown for facsimile recorder cassette
03/24/1982EP0048118A2 Facsimile design
03/23/1982US4321703 Transmission system for telecopying and electronic transmission of in-house mail
03/23/1982US4321631 Control method and device for reproducing a halftone dot cut away along a picture outline
03/23/1982US4321630 Linear integrating cavity light collector
03/23/1982US4321629 Image information reading system
03/23/1982US4321628 Scanning apparatus
03/23/1982US4321627 Optical scanner for ink jet printer
03/23/1982US4321626 Facsimile apparatus
03/23/1982US4321620 Color scanner for plate making
03/23/1982US4321564 Sequential beam switching of acousto-optic modulator
03/23/1982US4320962 Image formation method and apparatus
03/23/1982US4320955 Copy reproduction apparatus
03/23/1982CA1120592A1 Optoelectric scanning arrangements
03/18/1982WO1982000932A1 System and method for high quality image reproduction
03/18/1982WO1982000903A1 Process and circuit for the partial electronic correction in colour image reproduction
03/18/1982WO1982000902A1 Method and circuit for partial correction of the drawing during the colour image reproduction
03/17/1982EP0047631A2 Light collector rod for use with a flying spot scanner
03/17/1982EP0047512A2 Method and circuitry for character segmentation in a sequentially read series of characters
03/17/1982EP0047382A2 Adaptive compression encoding of a binary-source symbol string
03/16/1982US4320420 Hybrid bit clock servo
03/16/1982US4320419 Image reproduction equipment
03/16/1982US4320406 Ink printing device for multi-colored printing of a recording medium
03/16/1982CA1120159A1 Character and graphics transmission
03/10/1982EP0047180A2 Reproduction apparatus
03/10/1982EP0047179A2 Radiation detector
03/10/1982EP0047178A2 Radiation detector
03/10/1982EP0047145A2 A method of producing a half-tone reproduction
03/10/1982EP0046988A2 Method for lightness imaging
03/09/1982US4319285 Exposure control for selective speed xerographic printing and the like
03/09/1982US4319283 Portable copying machine
03/09/1982US4319282 Facsimile method and apparatus with sheet feeding
03/09/1982US4319268 Reproduction picture sharpness emphasizing method
03/09/1982US4319267 Picture coding and/or decoding equipment
03/09/1982US4318597 Optical print head for optical printing devices
03/09/1982US4318582 Two-dimensional scanning apparatus
03/09/1982CA1119711A1 Centralised fac-simile transmission installation
03/02/1982US4318135 Alignment system for scanning arrays
03/02/1982US4318134 Recording graphic data of different transmission rates
03/02/1982US4318122 Electronic color separation
03/02/1982US4318082 Method and apparatus for electronically aligning active elements of an imaging array with an optical system
03/02/1982US4317630 Copying machine
03/02/1982US4317629 Job recovery method and system
03/02/1982US4317611 Optical ray deflection apparatus
03/02/1982CA1119285A1 Facsimile communication system
03/02/1982CA1119284A1 Multiple access fac-simile receiver
03/02/1982CA1119238A1 Scanning array configuration
02/1982
02/24/1982EP0046399A1 Optical line scanner system
02/24/1982EP0046172A1 Illumination apparatus for a document scanner
02/23/1982US4317179 Method and apparatus for processing a radiographic image
02/23/1982US4317139 Facsimile apparatus and method of operation
02/23/1982US4317138 Method and apparatus for facsimile sheet handling
02/23/1982US4317137 Optical scan head and printer
02/23/1982US4317136 Facsimile system
02/23/1982US4317131 System and method for reproducing pictures and related audio information
02/23/1982US4317004 Imaging and scanning system
02/17/1982EP0046118A2 Method and device for scanning and/or reproducing documents
02/17/1982EP0045965A1 Method and apparatus to represent grey values during a facsimile transmission
02/16/1982US4316222 Method and apparatus for compression and decompression of digital image data
02/16/1982US4316199 Graphic forms overlay apparatus
02/16/1982US4316196 Illumination and light gate utilization methods and apparatus
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