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)
02/1982
02/16/1982US4315684 Copying method and apparatus
02/16/1982CA1118251A1 Optical scanning device
02/10/1982EP0045596A2 Image processing filter
02/09/1982US4315318 Method and apparatus for processing a radiation image
02/09/1982US4315285 Methods for converting a video signal into a black/white signal
02/09/1982US4315280 Method for reproducing color separation pictures on a recording material from original pictures
02/09/1982US4315245 Optical information reading device
02/09/1982US4315135 Thermal recording head
02/09/1982CA1118091A1 Block length multiple plus run length residue codes for run length encoding
02/04/1982WO1982000393A1 Device for the reading or restoration of a document,particularly for a facsimile apparatus
02/03/1982EP0045252A2 Document reading or reproducing device, in particular for a telecopying apparatus
02/02/1982US4314283 Diffraction based light collector
02/02/1982US4314282 Multifunction graphic engine based on an oscillating scanner
02/02/1982US4314281 Shading compensation for scanning apparatus
02/02/1982US4314274 Digital color correction method
02/02/1982US4314261 Apparatus for reproducing an image of variable tone density
02/02/1982US4314257 Thermomagnetic recording apparatus
02/02/1982US4314159 Document scanner
02/02/1982US4314154 Two-dimensional scanning device having compensation for scanned image strain
02/02/1982CA1117645A1 Facsimile signal superposing system
02/02/1982CA1117430A1 Automatically control apparatus for color scanner
02/02/1982CA1117333A1 Scanner with reflective pyramid error compensation
01/1982
01/27/1982EP0044789A1 Device for controlling heating elements to print on a thermosensitive surface
01/27/1982EP0044297A1 Selective copying apparatus.
01/26/1982US4313138 Image information reading system of facsimile apparatus
01/26/1982CA1117205A1 Packet-switched data communications system
01/26/1982CA1117178A1 Reproduction scanning system having intermediate storage between input and output scanning stations
01/26/1982CA1116907A1 Optical beam-splitting arrangements on object side of a lens
01/19/1982US4312018 Demodulator in a facsimile system
01/19/1982US4311989 Binary converter in particular for transmitters and receivers of reduced redundancy image data
01/19/1982CA1116532A1 Electronic halftone generator
01/13/1982EP0043721A2 Device for scanning coloured originals
01/13/1982EP0043720A2 Error compensation circuit for a bit clock
01/12/1982US4310886 Image gradation processing method and apparatus for radiation image recording system
01/12/1982US4310859 Paper cutter for facsimile apparatus
01/12/1982US4310858 Telecopying process employing a cell having a smectic liquid crystal and a transmitter-receiver telecopier employing said process
01/12/1982US4310757 Apparatus for correcting scanning speed in a polygon used for laser scanning
01/12/1982US4310234 Supplementary amount of developing solution determining method for a film developer
01/12/1982CA1116226A1 Apparatus and method for correcting imperfection in a polygon used for laser scanning
01/12/1982CA1116225A1 Adjustable imaging apparatus having guide rails and centering devices
01/11/1982EP0038825A4 Centrifugal clamp on a high speed print drum.
01/06/1982EP0043167A1 Method of transmitting information via television networks
01/06/1982EP0042981A1 Method of coding electrical signals obtained by scanning a representation containing both text and illustrations
01/05/1982US4309720 Apparatus and method for producing an image on a sensitized surface
01/05/1982US4309101 System for controlling apparatus for composite-recording information
01/05/1982CA1115838A1 Information storage and retrieval system
12/1981
12/29/1981US4308553 Method and apparatus for making monochrome facsimiles of color images on color displays
12/29/1981US4308548 Electrode assembly having particular pressing plate and backplane board arrangement for facsimile machine
12/29/1981US4308544 Electronic alignment of laser beam utilized in a laser scanning system
12/29/1981US4307962 Determination of the standard color values of colors represented on a color monitor
12/29/1981US4307930 Light beam scanning device
12/29/1981CA1115331A1 Electrographic recording head having integral recording electrode cleaning means
12/23/1981EP0042072A1 Facsimile system and control method therefor
12/23/1981EP0042071A2 Multiple-purpose terminal connected to a data processing apparatus or a text editing automat
12/23/1981EP0041982A1 A method for recording signals on bands by means of laser beams and apparatus for carrying out the method.
12/22/1981US4307415 Color indentification circuit
12/22/1981US4307409 Multi-aperture, feedback system for a laser scanner
12/22/1981US4307406 Multistyli recording systems
12/22/1981US4307377 Vector coding of computer graphics material
12/22/1981CA1114940A1 Facsimile system
12/22/1981CA1114752A1 Card retrieval device
12/22/1981CA1114751A1 Card retrieval device
12/22/1981CA1114747A1 Electronic halftone screening with halftone cells approximating a parallelogram
12/22/1981CA1114746A1 Variable angle electronic halftone screening
12/22/1981CA1114674A1 Method and apparatus for manipulating and transporting image media
12/16/1981EP0041660A1 Reading and writting device comprising an optical scanning device
12/15/1981US4306290 Image gradation processing method and apparatus for radiographic image copying system
12/15/1981US4306252 Optical scanning method and apparatus
12/15/1981US4306242 Laser recording system
12/15/1981CA1114493A1 Method and device for transmitting facsimile picture signals
12/09/1981EP0041400A1 Multi-resolution image signal processing apparatus and method
12/09/1981EP0041319A2 Document scanner
12/08/1981US4305100 Light scanning device
12/08/1981US4305094 Color control simulator for a picture reproducing machine
12/08/1981US4305093 Method of producing multiple images in a scanning apparatus
12/08/1981CA1114083A1 Picture/audio information transmission system
12/08/1981CA1114006A1 Method and apparatus for detecting information stored on photocopying media, transmitting and storing the same
12/08/1981CA1113782A1 Thermal transfer color printer
12/02/1981EP0040953A1 Optical scanning apparatus
12/02/1981EP0040796A2 Method for the automatic differentiation between image and text or graphic regions on printed originals
12/01/1981US4303948 Image transcribing system
12/01/1981US4303947 Image interpolation system
12/01/1981US4303936 Structure for and method of reproduction
12/01/1981US4303927 Apparatus for exciting an array of ink jet nozzles and method of forming
12/01/1981US4303322 Electronic image pick-up device for a single-lens reflex camera having an interchangeable finder
12/01/1981CA1113598A1 Scan interlock system
12/01/1981CA1113438A1 Facsimile stylus assembly
12/01/1981CA1113402A1 Apparatus and method for encoding halftone and line copy data
11/1981
11/25/1981EP0040320A2 Flat bed scanner system and method
11/25/1981EP0040302A2 An optical ray deflection apparatus
11/25/1981EP0035500A4 Laser-based image recording system.
11/24/1981US4302782 Reproduction scanning system having intermediate storage between input and output scanning stations
11/24/1981US4302781 Facsimile system
11/24/1981US4302776 Digital still picture storage system with size change facility
11/24/1981US4302770 Color raster scanner for recording cartographic data
11/24/1981US4302672 Image gradation processing method and apparatus for radiation image recording system
11/24/1981US4302671 Radiation image read-out device
11/24/1981US4302096 Graphic forms overlay apparatus
11/24/1981CA1113187A1 Data storage and retrieval system
11/18/1981EP0040025A1 Real time data compression/decompression scheme for facsimile transmission system
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