| Patents for H04N 1 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof (142,802) |
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| 07/03/1990 | US4938591 Method and apparatus for electronic and visual image comparing |
| 07/03/1990 | CA1271253A1 Pixel non-uniformity correction system |
| 06/28/1990 | WO1990007245A1 Electronic imaging apparatus spectrally-responsive to different types of originals |
| 06/28/1990 | WO1990007244A1 Image processing system |
| 06/28/1990 | WO1990007150A1 Picture input display and method thereof |
| 06/27/1990 | EP0375434A2 Digital printers |
| 06/27/1990 | EP0375431A2 Bandwidth reduced multi-pass writing of variable gray level digital images |
| 06/27/1990 | EP0375430A2 Flying spot scanners |
| 06/27/1990 | EP0375429A2 Digital printers |
| 06/27/1990 | EP0375090A2 Document processing system |
| 06/27/1990 | EP0374934A2 Method of distinguishing image area and non-image area, opaquing method and opaquing apparatus |
| 06/27/1990 | EP0374738A2 Recording apparatus |
| 06/27/1990 | EP0374285A1 Portable electronic image pick-up device |
| 06/27/1990 | EP0221929B1 Digital color image processing employing histogram normalization |
| 06/27/1990 | EP0221113B1 Digital exposure adjustment for photographic images |
| 06/26/1990 | US4937762 Method and apparatus for combination information display and input operations |
| 06/26/1990 | US4937683 Image recording apparatus |
| 06/26/1990 | US4937682 Method and apparatus for providing contrast/intensity control in a document scanner |
| 06/26/1990 | US4937681 Picture coding system for document image |
| 06/26/1990 | US4937677 Method of enlarging/reducing dithered images |
| 06/26/1990 | US4937676 Electronic camera system with detachable printer |
| 06/26/1990 | US4937664 Image forming apparatus |
| 06/26/1990 | US4937663 Apparatus for scanning and recording a color image having a scanning element with scanning periods equal to the reciprocal of the flicker rate of a light source illuminating the color image and a rotating multi-segment color filter |
| 06/26/1990 | US4937662 Color image processing device having ability to process and record an outside or inside region enclosed with a color marker |
| 06/26/1990 | US4937635 Multiple image registration |
| 06/26/1990 | CA1270961A1 Color plotter controller |
| 06/20/1990 | EP0374129A2 Image information recording apparatus |
| 06/20/1990 | EP0373921A2 A facsimile telegraph having a telephone function |
| 06/20/1990 | EP0373894A2 Method and apparatus for gray scale printing with a thermal ink jet pen |
| 06/20/1990 | EP0373704A1 Method of and apparatus for forming a multi-colour image |
| 06/20/1990 | EP0373449A2 Method of and apparatus for forming halftone dots |
| 06/20/1990 | EP0373263A1 An adjustable mirror assembly |
| 06/20/1990 | EP0373262A1 Image-reproducing apparatus |
| 06/20/1990 | EP0222825B1 Contrast adjustment of a processed digital image |
| 06/20/1990 | CN1008501B Decoding device for image code |
| 06/19/1990 | US4935955 Facsimile PBX with storage and security |
| 06/19/1990 | US4935891 Pseudo-random phase shifted arithmetic bit clock generators for digital printers |
| 06/19/1990 | US4935822 Method for image reduction processing according to criterion points |
| 06/19/1990 | US4935821 Image processing apparatus for multi-media copying machine |
| 06/19/1990 | US4935820 Imaging slow photographic media with liquid crystal shutters |
| 06/19/1990 | US4935818 Color monitor photo control system |
| 06/19/1990 | US4935809 Color film analyzing method and apparatus |
| 06/19/1990 | US4935786 Method and apparatus for duplex printing |
| 06/19/1990 | US4935767 Color-image copying apparatus |
| 06/19/1990 | US4935749 Image transfer system with preliminary-exposure device |
| 06/19/1990 | US4935615 Light intensity control for light beam recorder |
| 06/19/1990 | US4934821 Technique for scanning a microfilm image moving at a variable speed |
| 06/14/1990 | WO1990006653A1 Method and apparatus for digitizing an image |
| 06/14/1990 | WO1990006652A1 Improvements in converting stored documents into electronic signals |
| 06/14/1990 | WO1990006651A1 Method and apparatus for transmitting verified copy of a document over distances and to substitute for original document |
| 06/13/1990 | EP0372950A2 Image reducing apparatus |
| 06/13/1990 | EP0372943A2 Enhanced resolution electrophotographic-type imaging station |
| 06/13/1990 | EP0372894A2 Image communication apparatus |
| 06/13/1990 | EP0372877A2 Data communication apparatus |
| 06/13/1990 | EP0372826A2 Method and system for enhancing the quality of both color and black and white images produced by ink jet printers |
| 06/13/1990 | EP0372608A1 Method and device for picture data compression using a neural network |
| 06/13/1990 | EP0372514A2 Memory apparatus and handling apparatus therefor |
| 06/13/1990 | EP0372447A1 Illumination correction device for document scanner |
| 06/13/1990 | EP0372390A2 Method of and apparatus for establishing reference point on gradation correction curve |
| 06/13/1990 | EP0225428B1 Method for the recognition of edge structures in a picture signal |
| 06/13/1990 | EP0221111B1 Digital image colour correction method |
| 06/13/1990 | CN1043028A Method and apparatus for converting gray scale |
| 06/13/1990 | CN1043017A 显示系统 Display System |
| 06/13/1990 | CN1008393B Intermittent drive for a paper supply roller |
| 06/12/1990 | US4933983 Image data reading apparatus |
| 06/12/1990 | US4933874 Printer |
| 06/12/1990 | US4933817 Illuminating device |
| 06/12/1990 | US4933779 Image scanner apparatus of the drum type having an efficient line-of-light illumination system |
| 06/12/1990 | US4933778 Calibration of platen registration edges in copiers |
| 06/12/1990 | US4933777 Method of real-time converting analog video signal to digital half-tone data and converters thereof |
| 06/12/1990 | US4933776 Image processing method and apparatus therefor |
| 06/12/1990 | US4933775 Image enlarging or contracting method |
| 06/12/1990 | US4933771 Facsimile machine having a page printing function |
| 06/12/1990 | US4933770 Radio fax transmission |
| 06/12/1990 | US4933753 Portable image forming apparatus |
| 06/12/1990 | US4933727 Color recording apparatus |
| 06/12/1990 | US4933688 Laser printer having uniform circumferential laser placement |
| 06/12/1990 | US4933687 Laser-actuated digital imaging system |
| 06/12/1990 | US4933686 Method of and apparatus for transferring an image in a thermal transfer printer |
| 06/12/1990 | US4933685 Image transfer system with preliminary-exposure device |
| 06/12/1990 | US4933549 Light beam scanning apparatus |
| 06/12/1990 | US4932732 Optical scanning apparatus |
| 06/12/1990 | US4932332 Electronics oriented desk |
| 06/12/1990 | CA1270141A1 Photographic materials and colour proofing system |
| 06/10/1990 | CA2004992A1 Sealing device for facsimile receiving paper |
| 06/06/1990 | EP0371961A2 Magnetic recording/reproduction apparatus |
| 06/06/1990 | EP0371800A2 An image reading system |
| 06/06/1990 | EP0371765A2 Document reproduction machine having book edge copying capability |
| 06/06/1990 | EP0371764A2 Simulated color imaging using only two different colorants/toners |
| 06/06/1990 | EP0371744A2 Image processing apparatus |
| 06/06/1990 | EP0371726A2 Facsimile telegraph |
| 06/06/1990 | EP0371703A2 Document scanner |
| 06/06/1990 | EP0371671A2 Display device in image forming apparatus |
| 06/06/1990 | EP0371544A1 Method of and apparatus for processing and reproducing image information |
| 06/06/1990 | EP0371505A2 Linear driving apparatus |
| 06/06/1990 | EP0371485A2 Image sensor driving method with high-speed voltage response |
| 06/06/1990 | EP0371441A2 Multicolor image forming apparatus |
| 06/06/1990 | EP0371430A2 Holding sound generator for telephone |
| 06/06/1990 | EP0371389A2 Color image processing apparatus |
| 06/05/1990 | US4932066 Information signal transmission system |