| 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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| 02/22/1994 | US5289291 Image reading apparatus |
| 02/22/1994 | US5289290 Facsimile apparatus with improved transmission function of duplex original |
| 02/22/1994 | US5289280 Visual and/or audio information storage and retrieval device |
| 02/22/1994 | US5289270 Image processing apparatus for performing density conversion |
| 02/22/1994 | US5289262 Photodiode transmissive media sensor for aligning media |
| 02/22/1994 | US5289210 Image recording apparatus |
| 02/22/1994 | US5289204 Image recording apparatus |
| 02/22/1994 | US5289001 Laser beam scanning apparatus having a variable focal distance device and the variable focal distance device for use in the apparatus |
| 02/22/1994 | US5289000 Image reading method and apparatus determining synchronous position |
| 02/22/1994 | US5288579 Acyl compound as charge controller; triboelectric chargeability |
| 02/22/1994 | CA2093571A1 Multi-beam laser diode beam separation control |
| 02/22/1994 | CA2050102C Adaptive buffer/quantizer control for transform video coders |
| 02/22/1994 | CA1327242C Dual density digital image system |
| 02/22/1994 | CA1327227C Image forming device |
| 02/17/1994 | WO1994003998A1 Special document identifier, and system for controlling image forming device having special document identifying function |
| 02/17/1994 | WO1994003997A1 Document identifier which can also identify special ticket, image forming apparatus using the identifier, image processor, and copying machine |
| 02/17/1994 | WO1994003996A1 Image forming apparatus |
| 02/17/1994 | WO1994003994A1 Automatically initiated scanning system |
| 02/17/1994 | CA2120151A1 Automatically initiated scanning system |
| 02/16/1994 | EP0583127A2 Color spatial filtering for thermal ink jet printers |
| 02/16/1994 | EP0583107A2 Image processing method and apparatus |
| 02/16/1994 | EP0583055A2 Image enhancement |
| 02/16/1994 | EP0583044A2 Method and apparatus for scanning of image in integral film structure |
| 02/16/1994 | EP0583002A1 A still image reproduction apparatus |
| 02/16/1994 | EP0582997A1 Printer |
| 02/16/1994 | EP0582938A1 Telecopier with pivotably mounted image pick-up device |
| 02/16/1994 | EP0582937A1 Paper transport device for use in a telecopier |
| 02/16/1994 | EP0582819A2 Digital image signal processing apparatus |
| 02/15/1994 | US5287450 Video signal brancher |
| 02/15/1994 | US5287419 Image signal processer reproducing halftone images in a recording system printed thickened or thinned dots |
| 02/15/1994 | US5287418 Method and apparatus for producing a corrected image from an original image |
| 02/15/1994 | US5287402 Data communication apparatus |
| 02/15/1994 | US5287209 Image forming device for enhancing tone reproduction by changing dot size |
| 02/15/1994 | US5287204 Image recognition apparatus for judging between monochromic and color originals |
| 02/15/1994 | US5287203 Apparatus for encoding and decoding information on recording medium |
| 02/15/1994 | US5287202 Method and apparatus for a facsimile machine having ASCII code addressing capability |
| 02/15/1994 | US5287201 Call receiving method and apparatus |
| 02/15/1994 | US5287200 Block adaptive linear predictive coding with multi-dimensional adaptive gain and bias |
| 02/15/1994 | US5287199 Facsimile message processing and routing system |
| 02/15/1994 | US5287198 Image reading apparatus |
| 02/15/1994 | US5287195 Image display apparatus and method using halftone super cells |
| 02/15/1994 | US5287193 Parallel processing architecture of run-length codes |
| 02/15/1994 | US5287162 Alignment system for a color output terminal |
| 02/15/1994 | US5287160 Registration improvement by component synchronization in color printers |
| 02/15/1994 | US5287158 Image forming apparatus with image reading unit |
| 02/15/1994 | US5287127 Electrostatic printing apparatus and method |
| 02/15/1994 | US5287125 Raster output scanner with process direction spot position control |
| 02/15/1994 | US5287122 System and method of selecting the reproducible colors in a discrete reproduction system |
| 02/15/1994 | US5287091 Printer |
| 02/12/1994 | CA2101889A1 Facsimile apparatus having pivotally supported image reading system |
| 02/10/1994 | DE4324313A1 Printing element control unit e.g. for thermal and/or LED printing head - has two shift registers with respective number of storage cells amounting to at least half number of printing elements used in printing head |
| 02/10/1994 | DE4225946A1 Print block carrier laser exposure - has laser transmitter divided into several organs allocated to sections along length of exposure line to block |
| 02/10/1994 | DE4225508A1 Electronic reproduction colour contrast increasing circuit - corrects colour signals exceeding threshold to threshold value and varies other signals to maintain constant colour relationship |
| 02/10/1994 | DE3153373C2 Copying appts. picture image processing unit |
| 02/09/1994 | EP0582548A1 Method and apparatus for determining mis-registration |
| 02/09/1994 | EP0582547A1 Apparatus for image acquisition with speed compensation |
| 02/09/1994 | EP0582454A1 Four color toner single pass color printing system using two tri-level xerographic units |
| 02/09/1994 | EP0582434A1 Method for reducing pixel density in a printer |
| 02/09/1994 | EP0582421A1 Image processing apparatus |
| 02/09/1994 | EP0582369A1 Bit-map image resolution converter with controlled compensation for write-white xerographic laser printer |
| 02/09/1994 | EP0582331A1 Method and apparatus for encoding and decoding digital image data |
| 02/09/1994 | EP0582058A2 Image forming apparatus with sheet handling device |
| 02/09/1994 | EP0581971A1 Image scanner |
| 02/09/1994 | EP0278004B1 Small copying apparatus |
| 02/09/1994 | CN2155644Y Protector for facsimile printers |
| 02/08/1994 | US5285438 Motionless parallel readout head for an optical disk recorded with arrayed one-dimensional holograms |
| 02/08/1994 | US5285402 Multiplyless discrete cosine transform |
| 02/08/1994 | US5285297 Apparatus and method for color calibration |
| 02/08/1994 | US5285296 Conversion of color display data to color print data |
| 02/08/1994 | US5285295 Line image sensor |
| 02/08/1994 | US5285294 Image input apparatus and method having reading density control means |
| 02/08/1994 | US5285293 Document scanner |
| 02/08/1994 | US5285291 Methods of assigning pixels to cells of a halftone grid |
| 02/08/1994 | US5285290 Image storing with data compression to accommodate memory capacity |
| 02/08/1994 | US5285281 Image processing apparatus for compressing image data at a selected compression rate |
| 02/08/1994 | US5285275 Decoding method of picture image data and decoding circuit therefore |
| 02/08/1994 | US5285271 Digital color matrixing circuit |
| 02/08/1994 | US5285267 Circuit for color separation and contour correction |
| 02/08/1994 | US5285247 Linear print head image forming apparatus with magnification adjustment |
| 02/08/1994 | US5285237 Photoprint retaining platen for digitizing image scanner |
| 02/08/1994 | US5285221 Color image electrophotographic apparatus having photosensitive body and intermediate transfer body |
| 02/08/1994 | US5285220 Image recording apparatus with tone correction for individual recording heads |
| 02/08/1994 | CA1326913C Method and apparatus for digitizing and printing images and text |
| 02/03/1994 | WO1994003011A1 Imaging system and device having a simplified electrode design |
| 02/03/1994 | WO1994003010A1 Automated high definition/resolution image storage retrieval and transmission system |
| 02/03/1994 | DE4322995A1 Decoding system for variable length codes based upon look=up table - provides access by reduced address generated by data-bank selector and bit selector circuits |
| 02/03/1994 | DE4225355A1 Light signal converter providing video signal output, e.g. for photographic slide frames - uses slider with adjustable holder for slide frame allowing required section of slide to be imaged onto image sensor |
| 02/03/1994 | DE4224892A1 Blackboard having write on continuous band for conference, seminar - read by charge coupled sensors to transmit data via personal computer to disc to provide record and so allow copies to be made |
| 02/03/1994 | CA2136978A1 Imaging system and device having a simplified electrode design |
| 02/02/1994 | EP0581590A2 Color processing method |
| 02/02/1994 | EP0581575A2 System and method for intensity-variable printing |
| 02/02/1994 | EP0581574A1 System and method for performing intensity-variable printing |
| 02/02/1994 | EP0581571A1 Imaging coding device |
| 02/02/1994 | EP0581561A2 High addressability error diffusion with minimum mark size |
| 02/02/1994 | EP0581560A2 An electronic image processing system |
| 02/02/1994 | EP0581559A1 Scheduling color variations for discrete job elements |
| 02/02/1994 | EP0581554A1 Image recording apparatus |
| 02/02/1994 | EP0581514A2 Method for image mapping in linear space |
| 02/02/1994 | EP0581447A1 Residual image reduction apparatus for a linear image sensor |
| 02/02/1994 | EP0581415A2 Electronic high-fidelity screenless conversion system and method using a separable filter |