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)
05/1990
05/16/1990EP0368681A2 Contact type image sensor
05/16/1990EP0368664A2 Image forming apparatus
05/16/1990EP0368618A2 Still picture transmission-display apparatus
05/16/1990EP0368460A1 Coding apparatus
05/16/1990EP0368250A2 Apparatus for transmitting stored information
05/16/1990EP0367994A2 Binary video signal processing apparatus and semiconductor laser printer using such apparatus
05/16/1990EP0367833A1 Thermal head drive circuit and manual scanning-type copying machine
05/16/1990EP0367823A1 Video signal processor
05/16/1990CA2000589A1 Packaged sheet for cleaning facsimile machines
05/15/1990US4926463 Data communication apparatus having a reprogrammable voice memory
05/15/1990US4926325 Apparatus for carrying out financial transactions via a facsimile machine
05/15/1990US4926270 Driving method for a stepping motor and sheet conveying apparatus using the driving method
05/15/1990US4926269 Method of reading and displaying an image in an information filing apparatus
05/15/1990US4926268 Image processing apparatus which converts m-bit image data to n-bit (n>m) image data
05/15/1990US4926267 Reproduction of halftone original with reduced moire
05/15/1990US4926266 Method of decoding in run representation
05/15/1990US4926265 Apparatus and method for preventing paper interference in a recording device
05/15/1990US4926263 Synchronizing circuit for optical scanning apparatus
05/15/1990US4926254 Method of correcting color image data for obtaining proof image
05/15/1990US4926253 Multi-color document reading apparatus for facsimile and multi-color facsimile
05/15/1990US4926252 Color image reading and recording apparatus and its image recording method for recording full color images from stored colored information created by a single scan process
05/15/1990US4926251 Color image processing apparatus with image corrector
05/15/1990US4926250 Color image recording and reproducing apparatus utilizing a monochromatic recording medium
05/15/1990US4926249 Color image reader having a lens and prism incorporated into a single unit
05/15/1990US4926248 Scanning recording type printing method and apparatus for increasing image quality by controlling tone dot locations within image pixels
05/15/1990US4926246 Dither processing circuit
05/15/1990US4926209 Image recording apparatus using planar illuminator as a light source
05/15/1990US4926195 Image recording apparatus
05/15/1990US4926191 Image recording apparatus and method of carrying out initializing process in image recording apparatus
05/15/1990US4926058 Image reading apparatus with block lighting and pulsing
05/15/1990US4926045 Radiation image read-out apparatus
05/15/1990US4926041 Optical scanner
05/15/1990US4925271 Optical beam splitter
05/15/1990US4925262 Method and apparatus for light beam scanning using a hologram
05/15/1990US4925261 Method for scanning a laser beam by non-mechanical deflectors
05/15/1990CA1269174A1 Picture data memory system for storing both black and white and color picture data with different resolutions
05/10/1990DE3937356A1 Image generator for photocopier, printer etc. - has control for periodical exposure of rotary photoconductor by illuminating device
05/09/1990EP0367418A2 Display system interpolators
05/09/1990EP0367300A2 Portable laser diode scanning head
05/09/1990EP0367299A2 Portable laser diode scanning head
05/09/1990EP0367298A2 Portable laser diode scanning head
05/09/1990EP0367237A2 Thermal printer and facsimile system
05/09/1990EP0367226A2 Character pattern data storing apparatus and character pattern generating apparatus
05/09/1990EP0210251B1 Method and apparatus for high resolution ink jet printing
05/08/1990US4924521 Image processing system and method employing combined black and white and gray scale image data
05/08/1990US4924509 Image processing apparatus
05/08/1990US4924495 Enhanced communication services and apparatus
05/08/1990US4924494 Fax machine equipped for simultaneous transmission and reception via two telephone lines
05/08/1990US4924357 Light source unit for a business machine
05/08/1990US4924324 Facsimile machine which prevents the loss of recorded data in multiple cut sheet reports
05/08/1990US4924323 Tonal conversion method for pictures
05/08/1990US4924322 Bi-level image display signal processing apparatus
05/08/1990US4924321 Method and apparatus for image read-out and reproduction, and multi-semiconductor-laser light source device for the same
05/08/1990US4924320 Image system with connection to operational units
05/08/1990US4924319 Board-writing apparatus
05/08/1990US4924316 Solid color pickup apparatus
05/08/1990US4924313 Still picture signal processing apparatus having high resolution image pickup device with 4-to-1 interlace
05/08/1990US4924303 Method and apparatus for providing interactive retrieval of TV still frame images and audio segments
05/08/1990US4924302 CRT color video printer which eliminates magnification changes due to chromatic aberrations
05/08/1990US4924301 Digital signal processing method
05/08/1990US4924282 Image reading device with moisture resistant layer
05/08/1990US4924261 Image forming method
05/08/1990US4924255 Exposure unit in an image recording apparatus
05/08/1990US4924254 Film printing/reading system
05/03/1990WO1990004900A1 Automatic reference control for image scanners
05/03/1990WO1990004899A1 Automatic d.c. offset control for image scanners
05/03/1990WO1990004898A1 Digital halftoning with minimum visual modulation patterns
05/03/1990WO1990004838A1 Method for converting and processing compressed image data in multiple formats
05/03/1990WO1990004837A1 Method and apparatus for converting documents into electronic data for transaction processing
05/03/1990DE3836765A1 Telefax system
05/02/1990EP0366474A1 Solid-state camera and solid-state memory apparatus
05/02/1990EP0366427A2 Image processing
05/02/1990EP0366425A1 Job processing system for use with document copying/printing machines
05/02/1990EP0366399A2 Image processing apparatus and method therefor
05/02/1990EP0366380A2 Image scanning and printing apparatus
05/02/1990EP0366309A2 Colour image quantization system
05/02/1990EP0366126A2 Optical system supporting mechanism for an image processing equipment
05/02/1990EP0366037A2 Scanning beam control system
05/02/1990EP0365538A1 Method for reading out an image signal stored in a transparent photostimulable phosphor.
05/02/1990CN1041842A Film-to-video player using dedicated magnetic tracks on film
05/02/1990CN1041841A Method and apparatus for creating photomask for projecting image
05/02/1990CN1041830A Photofinishing process with film-to-video player using dedicated magnetic tracks on film
05/01/1990US4922546 Radio audio/facsimile communication device
05/01/1990US4922545 Facsimile image encoding method
05/01/1990US4922544 Image processing
05/01/1990US4922524 Facsimile system with a voice transmission function
05/01/1990US4922350 Document recognition with forward direction scan for detecting the boundaries of an original document and reverse direction scan for producing recorded image on the original document
05/01/1990US4922349 Data communication apparatus
05/01/1990US4922348 Facsimile service
05/01/1990US4922341 Method for scene-model-assisted reduction of image data for digital television signals
05/01/1990US4922340 Method and an apparatus of compressing information content of multilevel digital image data
05/01/1990US4922335 Color film reading apparatus providing high-gradation color signals
05/01/1990US4922333 Video copying apparatus spectrally-responsive to slides or negatives
05/01/1990US4922332 Method of and apparatus for generating tint pattern data
05/01/1990US4922284 Film printing/reading system
05/01/1990US4922272 High precision image recording apparatus
05/01/1990US4922266 Method for placing information on a medium while compensating for deviations from a characteristic time period
05/01/1990US4922117 Photoelectric conversion device having a constant potential wiring at the sides of the common wiring
05/01/1990US4922111 Card type image reader with means for relieving bending stress
05/01/1990US4922103 Radiation image read-out apparatus
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