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)
03/1989
03/28/1989US4816912 Laser-beam printer with improved optical deflector
03/28/1989US4816911 Handling process and information station
03/28/1989US4816905 Telecommunication system with video and audio frames
03/28/1989US4816902 Method for continuously preparing films for use in making printing plates for off set lithography and image-forming apparatus for preparing the films
03/28/1989US4816900 Method of separation and formation of a color component of a color image and apparatus therefor
03/28/1989US4816863 Exposure control system for continuous tone electrophotographic film
03/28/1989US4816846 Method and apparatus for direct color printing
03/28/1989US4816845 Image forming apparatus having a stepping motor with selectively excited coils
03/28/1989US4816843 Method of controlling a thermal head
03/28/1989US4816690 Method and apparatus for radiation image recording and read-out including control of read-out in accordance with irradiation field definition
03/28/1989US4816688 Radiation image read-out apparatus for stimulable phosphor sheet
03/28/1989US4816679 Radiation image read-out apparatus
03/28/1989US4816678 Method of detecting stored radiation energy level on stimulable phosphor sheet
03/28/1989US4816660 For reading symbols
03/28/1989US4816378 Imaging system
03/28/1989US4815870 Receiver clamping arrangement for thermal printers
03/28/1989US4815869 Method of multicolor printing with matrix printer
03/28/1989CA1251675A1 High resolution image restitution apparatus allowing development of the exposed films in real time
03/23/1989DE3830811A1 Image recording system
03/22/1989EP0307980A2 A control circuit for a laser printer
03/22/1989EP0307948A2 Silhouette cutting apparatus
03/22/1989EP0307845A1 An image processor with laser means operable as an image reader and a printer
03/21/1989US4815121 Communication apparatus recognizing speech and automatically switching from data to speech transmission
03/21/1989US4815078 Method of quantizing predictive errors
03/21/1989US4815058 Optical information processing apparatus
03/21/1989US4815027 Optical operation apparatus for effecting parallel signal processing by detecting light transmitted through a filter in the form of a matrix
03/21/1989US4814898 Image signal processing system
03/21/1989US4814895 Image reading device
03/21/1989US4814894 Image transmitting system having density selection
03/21/1989US4814893 Image processing system with coordination of image and recording material size
03/21/1989US4814891 Multicolor sublimation type thermal recording method including color and gradation correction and device therefor
03/21/1989US4814890 Image communicating system
03/21/1989US4814886 Image processing process and apparatus therefor
03/21/1989US4814881 Solid-state image sensor circuit
03/21/1989US4814877 Image reading apparatus provided with correction for shadings in image data
03/21/1989US4814876 Electronic camera
03/21/1989US4814871 Method for the transmission of a video signal
03/21/1989US4814867 Color correction processor with memory addressed by color component signals having unevenly-distributed data bits
03/21/1989US4814827 Photographic color proofing apparatus
03/21/1989US4814799 Method and apparatus for creating a photomask for projecting an image
03/21/1989US4814798 Combined electrographic printer, copier, and telefax machine with duplex capability
03/21/1989US4814797 Apparatus and method for controlling color dot size in multicolor image
03/21/1989US4814791 Laser beam scanning method for maintaining a linear beam intensity over the led and laser oscilation regions and implementing apparatus
03/21/1989US4814790 Dual mode thermal printer
03/21/1989US4814667 Light emitting diode array having uniform illuminance distribution
03/21/1989US4814636 Full pixel pulse stretching for phase reversal scophony transmission
03/21/1989US4814630 Document illuminating apparatus using light sources A, B, and C in periodic arrays
03/21/1989US4814617 Radiation image read-out apparatus
03/21/1989US4814616 Radiation image recording and read-out apparatus
03/21/1989US4814606 Photodetector assembly for a laser scanning apparatus
03/21/1989CA1251511A1 Electronic imaging copier
03/15/1989EP0307138A1 Thermal recording control method and system
03/15/1989EP0306811A2 Industrial image processing system
03/15/1989EP0070298B1 Areal electronic imaging apparatus
03/15/1989CN1031772A Character display apparatus
03/14/1989US4813067 Apparatus for connecting selectively a telephone answering device or additional equipment, such as a facsimile machine, to telephone lines
03/14/1989US4813059 Readback recovery of run length limited codes
03/14/1989US4813046 Optical scanning method
03/14/1989US4812974 Data processing apparatus for processing list vector instructions
03/14/1989US4812922 Still video signal playback apparatus with still video recording function
03/14/1989US4812918 Method and apparatus for scanning and digitizing optical images
03/14/1989US4812917 Device for reducing document in size having two facing non-parallel mirrors
03/14/1989US4812916 Visual monitoring device which projects an image of a register mark onto a scanning surface for use in setting image processing conditions
03/14/1989US4812915 Image reading apparatus which eliminates moire patterns by magnifying an image optically and reducing it electrically
03/14/1989US4812914 Electronic print board apparatus
03/14/1989US4812913 Diaphragm arrangement for opto-electronic scanning of originals
03/14/1989US4812910 Image reproducing equipment
03/14/1989US4812903 Method of electronically improving the sharpness and contrast of a colored image for copying
03/14/1989US4812902 Method and apparatus for adjusting color saturation in electronic image processing
03/14/1989US4812900 Original reading apparatus with light source switching without a switching circuit
03/14/1989US4812899 Printing process where each incremental area is divided into a chromatic area and an achromatic area and wherein the achromatic areas are printed in black and white and the chromatic areas are printed in color sub-sections
03/14/1989US4812879 Automatic photographic printing apparatus with simulator and method of adjusting simulator of automatic photographic printing apparatus
03/14/1989US4812861 Optical laser beam control device for printer
03/14/1989US4812667 Past record correcting/reading apparatus
03/14/1989US4812647 Optical addressing device and its use in electro-optical imaging devices
03/14/1989CA1251256A1 Nondestructive readout of a latent electrostatic image formed on an insulating material
03/14/1989CA1251058A1 Color reader
03/09/1989WO1989002137A1 Laser diode output power stabilization in a laser image setter
03/09/1989WO1989002136A1 Covering and cleaning device for the optical character generator in an electrophotographic printing device
03/09/1989WO1989002039A1 Oscillating bar suspension system
03/08/1989EP0306402A1 Optical device for still video image scanning, and scanner comprising such a device
03/08/1989EP0306245A2 Image transmission apparatus
03/08/1989EP0306157A2 Apparatus and method for printing upright and rotated characters
03/08/1989EP0305423A1 Device for deflecting a beam of rays
03/08/1989CN1031614A System for producing dithered images on asymmetric grids
03/07/1989US4811385 Data communication apparatus which can selectively store data or not, according to communication line status
03/07/1989US4811265 Basic cell type full search vector quantization coder
03/07/1989US4811239 Digital facsimile/image producing apparatus
03/07/1989US4811115 Image processing apparatus using approximate auto correlation function to detect the frequency of half-tone image data
03/07/1989US4811114 Image reading apparatus
03/07/1989US4811113 Image signal encoding method and system
03/07/1989US4811111 Facsimile machine having a function of transmitting source and destination information
03/07/1989US4811110 Reflection-type overhead projector
03/07/1989US4811109 Image processing system
03/07/1989US4811108 Tonal conversion method for pictures
03/07/1989US4811107 Video player sensor cable
03/07/1989US4811089 High resolution full color exposure device using an electronically generated mask
03/07/1989US4811084 Video color detector and chroma key device and method
03/07/1989US4811037 Image processing apparatus
03/07/1989US4810896 Photoelectric conversion device with reduced fixed pattern noises
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