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)
12/1980
12/02/1980CA1090864A1 Magnetic interpositive method
12/02/1980CA1090863A1 Density control for ink jet printer
12/02/1980CA1090632A1 Diffraction grating for the formation of colour components
11/1980
11/27/1980WO1980002612A1 Process and device for determining the contours inside an image
11/27/1980WO1980002607A1 Switching process and device by partial electronic retouching during the reproduction of colour images
11/25/1980US4236174 Color correction of image display
11/25/1980CA1090471A1 Optical system for extending photosensor array resolution
11/18/1980US4234895 Converting a video signal into a two-level signal
11/18/1980US4234867 Threshold device for distinguishing the white level from the black level in an input signal delivered by a reading head for analyzing a document
11/18/1980CA1089999A1 Bidirectional ink jet printer
11/18/1980CA1089988A1 Apparatus for producing vectors
11/18/1980CA1089985A1 Arrangement for extending photosensor array resolution
11/18/1980CA1089922A1 Laser operated scanning and printing system
11/18/1980CA1089921A1 Printer with moving printing head
11/18/1980CA1089919A1 Electrographic recording head
11/18/1980CA1089917A1 Jet drop copying apparatus
11/18/1980CA1089912A1 Charge electrode array and combination for ink jet printing and method of manufacture
11/18/1980CA1089771A1 Apparatus for producing corrected color chromatic components
11/18/1980CA1089770A1 Methods of a coarse-scan/fine-print character reproduction with compression
11/13/1980WO1980002467A1 Laser-based image recording system
11/12/1980EP0018762A1 Thermal printing apparatus
11/11/1980US4233636 Optical read-write system with electronically variable image size
11/11/1980US4233601 Display system
11/11/1980US4233506 Photo-sensor
11/04/1980US4232345 Apparatus for producing a seamless copy from an unjointed original
11/04/1980US4232344 Device for reproducing a halftone picture by scanning
11/04/1980US4232343 Method and apparatus for recording graphic or image information by means of punctiform recording spots
11/04/1980US4232342 Multiplexing for facsimile systems
11/04/1980US4232324 Apparatus for arranging scanning heads for interlacing
11/04/1980US4232219 Photosensor
11/04/1980US4232103 Polycarbonate, aromatic diamine compound, chlorine containing solvent
11/04/1980CA1089119A1 X-ray examining device comprising a television chain which includes a memory
11/04/1980CA1089088A1 Run length encoding and decoding methods and means
11/04/1980CA1089087A1 Run length encoding and decoding methods and means
11/04/1980CA1089086A1 Run length encoding and decoding methods and means
11/04/1980CA1089085A1 Run length encoding and decoding methods and means
11/04/1980CA1088998A1 Optical scanning and encoding device
11/04/1980CA1088870A1 Stiffening construction for facsimile cassette
10/1980
10/29/1980EP0018214A1 Facsimile receiving apparatus and method of operation thereof
10/29/1980EP0018213A1 Facsimile receiver or transceiver apparatus and method of operation
10/29/1980EP0018060A1 Electro-optical colour imaging apparatus
10/28/1980US4231095 Remote reproduction of images
10/28/1980US4231070 High speed copying means and method
10/28/1980US4231069 Method and apparatus for producing image combinations
10/28/1980US4231061 Instant color slide recorder of CRT image
10/28/1980US4230902 Modular laser printing system
10/28/1980US4230405 Electronic imaging apparatus using multicolor electrophotosensitive particles
10/28/1980CA1088682A1 Integrated telephone and facsimile apparatus
10/28/1980CA1088665A1 Method of and apparatus for modifying a video signal to prevent unauthorized recording and reproduction thereof
10/21/1980US4229769 Facsimile system
10/21/1980US4229768 Information processing apparatus
10/21/1980US4229764 Visibility expander
10/21/1980US4229750 Information output unit
10/21/1980US4229095 Electro-optical color imaging apparatus
10/15/1980EP0017553A1 System for the visualisation of numerical images, especially for their reproduction by photography, comprising a device for half-tone correction
10/15/1980EP0017346A1 Multi-purpose optical data processor
10/14/1980US4228469 Method and apparatus for time compression of facsimile transmissions
10/14/1980US4228468 Output correcting system for facsimile
10/14/1980US4228467 Reduced redundancy facsimile transmission installation
10/14/1980US4228466 Transmission mode signaling between a facsimile transmitter and a facsimile receiver
10/14/1980US4228443 Graphic electric recorder
10/14/1980US4227801 Document receiver in a document processing machine
10/14/1980US4227455 Suspension arrangement for an oscillating body
10/14/1980CA1087749A1 Confidential mail processing system
10/14/1980CA1087727A1 Facsimile transmission apparatus
10/14/1980CA1087675A1 Feedback control for laser discharge system
10/07/1980US4227219 Carriage guide mechanism for use in scanning device
10/07/1980US4227218 Method and apparatus for generating a digital facsimile signal
10/07/1980US4227213 Video signal recording system
10/07/1980US4227078 Photo-sensor
10/01/1980EP0016630A1 Optical scanning apparatus
10/01/1980EP0016400A2 Information processing device for entering and further processing of optical information recorded on an information carrier
10/01/1980EP0016299A1 System for and method of reproducing an image
09/1980
09/30/1980US4225888 High efficiency facsimile transmission system
09/30/1980US4225885 Method and apparatus for adaptive transform coding of picture signals
09/30/1980US4225217 Film card with reference frame
09/30/1980CA1086542A1 Illuminating and scanning system
09/23/1980US4224641 Abnormality indication system of facsimile apparatus
09/23/1980US4224510 Original document reading apparatus
09/23/1980CA1086418A1 Direct imaging apparatus for an electronic document transmitter
09/23/1980CA1086231A1 Document copying apparatus with electronic collating memory
09/17/1980EP0015534A1 System for ciphered transmission of data
09/16/1980US4223357 Facsimile recorder with sweep rate detection
09/16/1980US4223356 Method and arrangement for facsimile picture transmission
09/16/1980US4223212 Card selector device
09/09/1980US4222117 Data pulse receiver arrangement
09/09/1980US4222077 Analog-digital conversion method, and a picture reproduction method using the same
09/09/1980US4222076 Progressive image transmission
09/09/1980US4222060 Ink jet printing apparatus
09/09/1980US4221960 Method for stabilizing a modulated light ray
09/09/1980CA1085514A1 Data compression system
09/09/1980CA1085211A1 Multiple reduction indicators for continuously variable reduction copier machines
09/02/1980US4220978 Electro-optical document reader
09/02/1980CA1085043A1 Still color television signal recording and reproducing apparatus
08/1980
08/26/1980US4219850 Optical encoder
08/26/1980US4219824 Thermal recording apparatus
08/26/1980CA1084577A1 Optical printer with character magnification
08/20/1980EP0014548A2 Flying spot scanning apparatus
08/19/1980CA1084098A1 Meniscus dampening drop generator
08/12/1980US4217611 Optoelectronic scanning apparatus
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