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)
06/1983
06/01/1983EP0080294A1 Pattern scanners
06/01/1983EP0080075A2 Method and apparatus for the control of grey level
06/01/1983EP0080017A1 Linear positioning apparatus for a read/write head
06/01/1983EP0079958A1 High resolution optical-addressing apparatus.
06/01/1983EP0079904A1 Light emitting diode array devices and image transfer systems
05/1983
05/31/1983US4386374 Electronic duplicator with a line buffer memory
05/31/1983US4386373 Facsimile apparatus
05/31/1983US4386366 Adaptive type quantizer
05/31/1983US4386272 Apparatus and method for generating images by producing light spots of different sizes
05/31/1983US4386271 Clock generator
05/31/1983US4386267 Color isolation method
05/31/1983CA1147470A1 Binary conversion device, particularly for image information transmitters and receivers with redundancy reduction
05/26/1983WO1983001882A1 Optical scanner for color facsimile
05/25/1983EP0079821A1 Line-by-line document scanner equipped with a device for checking the position of the document
05/25/1983EP0079557A2 Cassette having radiation image storage medium
05/25/1983EP0079542A2 Two-dimensional digital linear interpolation system
05/25/1983EP0079532A1 Two-beam scanning optical system
05/25/1983EP0079380A1 Pictorial information processing technique
05/24/1983US4385325 Raster input scanner comprising two CCD arrays
05/24/1983US4385306 Dot writing head for high definition printers, and a method of manufacturing the same
05/24/1983US4385302 Multicolor recording apparatus
05/24/1983CA1147012A1 Easily assemblable transverse magnetic printing head
05/18/1983EP0079209A2 Method of driving a thermal head
05/18/1983EP0079208A2 Picture data recording apparatus
05/18/1983EP0079183A1 Raster scanner and method of scanning
05/18/1983EP0079153A1 Controlling register in a printing press
05/18/1983EP0079063A2 Thermal printing head
05/17/1983US4384336 Method and apparatus for lightness imaging
05/17/1983US4384307 Facsimile communications interface adapter
05/17/1983US4384297 Laser recorder reproducing a picture having half-tones of high accuracy
05/17/1983US4384272 Image reading apparatus
05/17/1983US4383755 Unitary, modular, demountable optical system for laser diode/printing copying apparatus
05/17/1983CA1146473A1 Picture coding and/or decoding equipment
05/11/1983EP0078673A2 Magneto-optical head assembly
05/11/1983EP0078390A2 Optical imaging apparatus and method
05/11/1983EP0078376A2 Drum for a drum scanner
05/10/1983US4383278 Light beam modulating/deflecting system
05/10/1983US4383277 Copying apparatus comprising interconnectable copying machines
05/10/1983US4383275 Read-out level compensation in an optical reader system
05/10/1983US4383170 Image input device
05/10/1983CA1146261A2 Scanning apparatus
05/04/1983EP0077874A2 Image scanner
05/03/1983US4382286 Method and apparatus for compressing and decompressing strings of electrical digital data bits
04/1983
04/27/1983EP0077677A2 Radiation image read-out method and apparatus
04/27/1983EP0077546A2 Thermal recording device
04/27/1983EP0077410A1 Contrast enhancement method
04/26/1983US4381547 Picture deforming process
04/26/1983CA1145450A1 Laser scanning utilizing facet tracking and acousto pulse imaging techniques
04/26/1983CA1145170A1 Apparatus and method for correcting imperfection in a polygon used for laser scanning
04/20/1983EP0077239A1 Spatial correction device for an image scanner
04/20/1983EP0077188A2 Electro-optic modulator
04/20/1983EP0077089A2 Device for storing or transmitting transform-coded picture signals and for regaining those picture signals
04/20/1983EP0076972A1 Document processing system and equipment
04/20/1983EP0076948A2 Variable resolution interlaced ink jet printer
04/19/1983US4380777 Keyed AGC circuit for video data transmitting device
04/19/1983US4380776 Image positioning apparatus
04/19/1983US4380390 Exposure correcting device
04/19/1983US4380389 Document transport for raster scanners
04/19/1983US4380387 Composite information recording apparatus
04/19/1983CA1145031A1 Facsimile system
04/19/1983CA1144865A1 Apparatus for color or panchromatic imaging
04/13/1983EP0076700A2 Input/output scanner for document processing
04/13/1983EP0076380A2 Method and circuit for contrast enhancement
04/12/1983US4380023 Electronic imaging apparatus with light valve area arrays
04/12/1983US4380015 Recording system for recording information on record medium by using energy beam
04/12/1983US4379631 Apparatus having a copier function and a printer function
04/12/1983CA1144637A1 Linear light source fixing device used in a facsimile transmission apparatus
04/06/1983EP0075858A2 Photosensor
04/06/1983EP0075684A2 Real-time ordinal-value filter utilizing half-interval ranking
04/06/1983EP0075628A1 Beam intensity measurement system for raster scanners
04/05/1983US4379302 Powdered magnetic ink printing devices
04/05/1983US4379292 Method and system for displaying colors utilizing tristimulus values
04/05/1983CA1144274A2 Transmission method and system for facsimile signal
04/05/1983CA1143985A1 Optical apparatus for the reproduction of images, using a liquid crystal cell and a telecopier comprising such apparatus
03/1983
03/30/1983EP0075470A2 Electronic image processing system
03/29/1983US4378571 Serial analog video processor for charge coupled device imagers
03/29/1983US4378568 Light valve imaging apparatus and method for providing gray scale
03/29/1983US4378567 Electronic imaging apparatus having means for reducing inter-pixel transmission nonuniformity
03/29/1983US4378566 Apparatus for producing a color picture on recording paper
03/29/1983US4378562 Light beam scanning device
03/29/1983CA1143857A1 System for controlling and sequencing a printer
03/29/1983CA1143825A1 Recording head for facsimile receivers
03/29/1983CA1143661A1 Method of and circuit arrangement for partial electronic retouching in the reproduction of colour pictures
03/29/1983CA1143660A1 Separated sensor array abutment
03/23/1983EP0074795A2 Image scanning apparatus and method
03/23/1983EP0074794A2 Apparatus and method for producing halftone patterns
03/23/1983EP0074719A2 Imaging device
03/23/1983EP0074422A1 Method for the production of printing plates by means of printing irregularly distributed points
03/22/1983US4377753 High resolution optical-addressing device and electronic scanner and/or printer apparatus employing such device
03/22/1983CA1143206A1 Photosensitive device including a 2-(2'-hydroxyphenyl)-benzotriazole stabilizer in a diamine containing hole transport layer
03/16/1983EP0074110A2 Graphic reading
03/16/1983EP0073977A2 Recording process for reproducing originals, especially coloured ones, with an exact tone value, and apparatus for carrying out the process
03/15/1983US4376576 Light collector rod for use in xerographic systems
03/15/1983US4376568 Thick film line modulator
03/15/1983CA1142993A1 Digital laser platemaker and method
03/15/1983CA1142858A1 Method and apparatus for forming high resolution halftone images
03/08/1983US4376282 Optical print head with graded index fiber arrays for optical printing devices
03/08/1983US4375916 Photocopier system with portable detachable reader
03/02/1983EP0073152A2 Apparatus for reproducing a still color picture
03/02/1983EP0073086A1 A system for converting the image information on an original into an electrical signal
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