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)
11/1981
11/18/1981EP0039899A2 Scan signal processing system
11/17/1981US4301479 Signal processing system of facsimile
11/17/1981US4301469 Run length encoder for color raster scanner
11/11/1981EP0039565A1 Methods of and apparatuses for processing binary data
11/11/1981EP0039403A2 Xerographic copier including controllable erase system
11/10/1981US4300170 Picture outline tracing and recording machine
11/10/1981US4300169 Facsimile operation method
11/10/1981US4300158 Process control apparatus
11/10/1981US4299437 Coherent beam scanner having a planar hologram illuminated by a convergent or divergent beam
11/10/1981US4299380 Sheet feed apparatus
11/10/1981CA1112353A2 Catv sine wave coding system
11/10/1981CA1112291A1 Data storage and retrieval system
11/04/1981EP0039170A2 Copying apparatus
11/04/1981EP0038825A1 Centrifugal clamp on a high speed print drum.
11/03/1981US4298895 Visual image noise eliminating system
11/03/1981US4298859 Digital video line delay circuit
11/03/1981US4298269 Recordable reader printer and electrostatic copier
10/1981
10/29/1981WO1981003097A1 Electronic image processing
10/28/1981EP0038515A2 Method and apparatus for reproduction of an original on a copy medium
10/28/1981EP0038514A2 Method and system to determine the border lines between two surfaces of different colour density
10/28/1981EP0038513A2 Method and system to depict a picture of an object
10/28/1981EP0038497A2 Method of imaging an electrophotographic member and apparatus for carrying out the method
10/27/1981US4297727 Facsimile apparatus
10/27/1981US4297715 Electrostatic recording apparatus
10/27/1981US4297713 Laser recording apparatus
10/27/1981CA1111547A1 Facsimile transmission apparatus with reduced redundancy
10/21/1981EP0038070A2 Arrangement for scanning documents provided with graphic patterns
10/21/1981EP0038067A2 Method and system for memorizing graphics and alphanumerics from a model
10/21/1981EP0038049A2 Binary scan system
10/20/1981US4296441 Photoelectric scanning apparatus
10/20/1981US4296440 Start of message generator for a facsimile system
10/20/1981US4296439 Digital signal control system in a facsimile communication
10/20/1981US4296317 Paint application method and machine
10/20/1981CA1111130A1 Circuit arrangement for recognizing and adjusting color components
10/20/1981CA1110982A1 Card retrieval device
10/13/1981US4295167 Carriage speed control for a raster scanner
10/13/1981US4294534 Multiple function reproduction apparatus
10/13/1981US4294506 Optical scanner with anamorphic optical system
10/13/1981CA1110753A1 Facsimile compression system
10/07/1981EP0037225A2 Copying apparatus
10/07/1981EP0036965A1 Thermal recording apparatus
10/07/1981EP0036877A1 Process and apparatus for prerecording and organizing data selected from source-documents
10/06/1981US4293873 Method and a device for producing separation images having the effect of being orthogonally screened
10/06/1981US4293872 Production of printing blocks or forms
10/06/1981US4293864 Laser scanner transport
10/06/1981US4293202 Light beam recording device
10/01/1981WO1981002706A1 Color printer and multi-ribbon cartridge therefor
09/1981
09/30/1981EP0036548A2 Method of engraving printing surfaces
09/30/1981EP0036418A1 Process for transforming chrominance numerical signals of an orthogonal system of colour coordinates into numerical colour signals and into saturation signals of a system of colour coordinates and transformation circuit.
09/22/1981US4291341 Composite recording apparatus for recording information from different information sources
09/22/1981US4291340 Jet drop copier with multiplex ability
09/22/1981US4291339 Facsimile transceiver
09/22/1981US4291314 Transverse magnetic printing head
09/22/1981US4290689 Moving exposure system
09/16/1981EP0035875A2 Pixel magnification/demagnification apparatus and method
09/16/1981EP0035746A1 Thermal recording apparatus
09/16/1981EP0035500A1 Laser-based image recording system
09/15/1981US4290086 First grate detector for an optical scanning system
09/15/1981US4290085 Synchronization system for variable line length facsimile transceivers
09/15/1981US4290084 Method and means for preserving original continuity/discontinuity among same colored pel clusters upon array compression
09/15/1981US4290076 Compensatory means improving the operation of electrostatic printers
09/15/1981US4289371 Optical scanner using plane linear diffraction gratings on a rotating spinner
09/08/1981US4288822 System for the analysis and the recording of monochromic images
09/08/1981US4288821 Multi-resolution image signal processing apparatus and method
09/08/1981US4288820 Time-axis picture-signal converter for facsimile and the like
09/08/1981US4288813 Apparatus for automatically engraving mimeographic stencil papers
09/08/1981US4288702 Image pickup device having electrode matrix coupling
09/08/1981US4288662 Circuit arrangement for telephone exchange systems, especially subscriber extension station installations, with additional data traffic, for example with teleprinter equipment
09/08/1981CA1108749A1 Facsimile transmission installation for reproducing forms in particular
09/08/1981CA1108748A1 Processor for increasing the run-length of facsimile data
09/08/1981CA1108686A1 High speed imaging of electrophotographic film by fine beam scanning
09/03/1981WO1981002491A1 Method of recording on an information carrier communicated in the form of electric signals
09/02/1981EP0034941A1 Header sheet for image communications system
09/01/1981US4287536 Gain control for scanning arrays
09/01/1981US4287525 Multi-pin record electrode assembly and driving method of the same
09/01/1981US4287524 Electrostatic recording method with delayed control voltage
09/01/1981US4287414 Illumination and pick up apparatus
09/01/1981CA1108325A1 Telecommunications system
09/01/1981CA1108288A1 Facsimile communication system
09/01/1981CA1108062A1 Automatically colour printing control device
08/1981
08/26/1981EP0034506A2 Image display system
08/26/1981EP0034499A1 Multiple mode image processing apparatus and method
08/26/1981EP0034187A1 Compressed data restoring system
08/25/1981US4286291 Digital video processor
08/25/1981CA1107852A1 Information density decision circuit
08/25/1981CA1107808A1 Exposure control for selective speed xerographic printing and the like
08/19/1981EP0034067A2 Sheet feeding system and electrosensitive sheet
08/19/1981EP0034066A2 Printer with forms overlay
08/19/1981EP0033944A1 Device for the electronic scanning of recording objects
08/19/1981EP0033731A1 Engraving apparatus.
08/18/1981US4285012 Light beam scanner
08/18/1981US4285009 Apparatus for producing corrected color chromatic components
08/18/1981US4284996 Driving ink jet recording elements
08/18/1981US4284994 Laser beam recorder
08/18/1981US4284876 Thermal printing system
08/18/1981CA1107105A1 Optical scanner and system for laser beam exposure of photo surfaces
08/12/1981EP0033634A2 Thermal recording head
08/12/1981EP0033623A2 A method and apparatus for reducing the gray scale resolution of a digitized image
08/12/1981EP0033493A1 Method and circuit arrangement for colour recognition
08/12/1981EP0033453A1 Duplex copy printing system and method
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