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)
10/1990
10/09/1990US4962464 Serpentine columnar plotting system
10/09/1990US4962433 Video printer having converting means for converting a video signal into digital picture data
10/09/1990US4962431 Synchronizing signal generating system for laser scanner
10/09/1990US4962430 Image reading body and image formation body detachably mounted to a control body
10/09/1990US4962421 Color image generating apparatus
10/09/1990US4962385 Exposure controlled imaging system
10/09/1990US4962375 Driving circuit for a light emitting diode array
10/09/1990US4962312 Laser beam scanning device with plural sources and source-sensitive synchronization
10/09/1990US4961802 Method of manufacturing a lens array for reading information
10/09/1990US4961632 Light beam deflector/modulator
10/09/1990CA1275002A1 Electronic imaging copier
10/09/1990CA1275000A1 Image processing apparatus
10/06/1990CA2013945A1 Color image reading apparatus
10/04/1990WO1990011576A1 System for plotting and scanning graphic images
10/04/1990DE4009952A1 Datensignal-wiedergabevorrichtung Data signal reproducing device
10/03/1990EP0390597A2 Facsimile apparatus
10/03/1990EP0390533A2 Method of reproducing gradations
10/03/1990EP0390487A2 Process for assembling smaller arrays together to form a longer array
10/03/1990EP0390421A1 Still video camera
10/03/1990EP0390364A2 Image reading devices
10/03/1990EP0390171A2 Electrostatic latent image recording/reproducing device
10/03/1990EP0390085A2 Method and system for controlling transmission of image data
10/03/1990EP0390055A2 Color image processing apparatus with digital color signal compression means
10/03/1990EP0389969A2 Focal plane array readout employing one capacitive feedback transimpedance amplifier for each column
10/03/1990EP0389811A2 Image data processing system with adaptive binary quantization
10/03/1990EP0389748A2 Flexible formatting interface for pictorial data transfer
10/03/1990EP0389743A2 Apparatus and accompanying method for converting a bit mapped monochromatic image to a grey scale image using table look up operations
10/03/1990EP0231279B1 Color imaging apparatus using electro-optic modulators
10/03/1990CA2009842A1 Integral fiber optic sensing head
10/02/1990USRE33369 Remote control device using telephone circuit of electric apparatus
10/02/1990US4961209 System for measuring the charge distribution on a photoreceptor surface
10/02/1990US4961185 Method for controlling a terminal equipment coupled to an integrated services digital network and a terminal equipment based on the same
10/02/1990US4961118 Document scanner driven by electromagnetic actuators
10/02/1990US4961117 Document scanner
10/02/1990US4961080 Laser marker with mask scanning
10/02/1990US4961079 Laser printer having athermalized optical heads
10/02/1990US4960993 Radiating image read-out and displaying apparatus
10/02/1990US4960981 Method of and system for electronic funds transfer via facsimile machines
09/1990
09/28/1990CA2013165A1 Color image processing apparatus with digital color signal compression means
09/27/1990DE3909740A1 Device for reception and reproduction of signals which are transmitted by weather satellites
09/27/1990DE3909665A1 Device for reproducing pictures
09/26/1990EP0389298A2 Facsimile apparatus
09/26/1990EP0389285A2 Facsimile apparatus
09/26/1990EP0389164A2 Pixel density converting apparatus
09/26/1990EP0389124A2 Adaptive thresholding technique
09/26/1990EP0389122A2 Sensing/printing apparatus and related method
09/26/1990EP0389044A2 Processing picture signals
09/26/1990EP0388981A2 Optical scanning apparatus
09/26/1990EP0388889A2 Block transformation coding system
09/26/1990EP0388887A2 Image processing apparatus capable of detecting marked region
09/26/1990EP0388877A2 Color image processing apparatus provided with an image discrimination means
09/26/1990EP0388658A1 Color balanced image detector system
09/26/1990CN1009791B Facsimile machine using cut sheet of paper
09/25/1990US4959868 Image processing system
09/25/1990US4959791 Control system for enhancing gray tones of a digitally operated printer
09/25/1990US4959790 Apparatus and method for producing color corrected reproduction of colored original images
09/25/1990US4959737 Image scanning apparatus for use in an image reader, a copying machine and the like
09/25/1990US4959736 Image signal processing method and apparatus with elongated picture elements
09/25/1990US4959735 Recording apparatus with remaining time indication display
09/25/1990US4959731 Combined electrographic printer, copier, and telefax machine
09/25/1990US4959730 False density contour suppression using randomly modified input signals for comparison to threshold values
09/25/1990US4959712 Method and apparatus for color adjustment
09/25/1990US4959711 Method and apparatus for correcting the color of a printed image
09/25/1990US4959669 Color correction device for a color image forming apparatus
09/25/1990US4959668 Device for producing images on printing image carriers
09/25/1990US4959665 Laser printer with harmonic wave separation of the beam
09/25/1990US4959664 Laser scanner with beam transmissivity control
09/25/1990US4959659 Color picture forming apparatus and method
09/25/1990US4959545 Radiation image read-out apparatus
09/25/1990US4959541 Method for determining aperture shape
09/25/1990US4959536 Sheet conveying and reading apparatus having a light-intercepting member for reducing noise
09/25/1990US4959533 Photosensitive semiconductor contact image sensor
09/25/1990US4958912 Image forming apparatus
09/25/1990US4958826 Paper feed system having a pressure plate that resiliently urges a plurality of elongated bearing, spring biased idler rollers against associated drive rollers for feeding a sheet of paper therebetween
09/22/1990CA2012717A1 Image processing apparatus capable of detecting marked region
09/20/1990WO1990010990A1 Method of and means for printing a multilevel representation of an image
09/20/1990WO1990010989A1 Voice prompted facsimile retrieval system
09/20/1990WO1990010917A1 Printer with at least two spatially separate printing stations
09/20/1990WO1990010915A1 Method and apparatus for filtering digital data
09/20/1990WO1990010885A1 Reference grid for optical scanner
09/20/1990WO1990009075A3 Digital halftoning with error diffusion
09/20/1990WO1990005422A3 Digital image processing and display system
09/19/1990EP0388282A1 Method and device for the acquisition and digital storage of coloured geographical maps and display of the maps
09/19/1990EP0388219A2 Facsimile apparatus
09/19/1990EP0388093A2 Interactive facsimile system and method of information retrieval
09/19/1990EP0388089A2 Image processing apparatus
09/19/1990EP0387953A1 Device for connecting a subscriber line to a selected internal line
09/19/1990EP0387817A2 Electronic still camera
09/18/1990US4958241 Image input apparatus
09/18/1990US4958240 Original reading apparatus applying a lamp voltage to correct lamp blackening
09/18/1990US4958239 Method of gradation and selection of micro picture elements therefor in a picture display
09/18/1990US4958238 Image processing method and apparatus with conditional correction of error data
09/18/1990US4958237 Method of making enlarged prints by subdividing an original image and interpolating the subdivided image
09/18/1990US4958236 Image processing method and apparatus therefor
09/18/1990US4958235 System and method for rapidly conveying document images between distant locations
09/18/1990US4958233 Digital and analog image recording apparatus
09/18/1990US4958232 Process apparatus for processing memory which stores information
09/18/1990US4958226 Conditional motion compensated interpolation of digital motion video
09/18/1990US4958221 Digital color copying machine comprising a test mode for making a color adjustment
09/18/1990US4958220 Color imaging apparatus producing visually matched displays of perceptually distinct reproduced images
1 ... 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 ... 1429