Patents
Patents for H04N 1 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof (142,802)
08/1993
08/31/1993US5241373 Apparatus for correction of color signal values
08/31/1993US5241371 Image display control apparatus and still picture reproducing system
08/31/1993US5241349 Image forming apparatus having a plurality of control modes of thermal fixing apparatus
08/31/1993US5241347 Image forming apparatus comprising means for automatically adjusting image density
08/31/1993US5241330 Beam recording with scanning speed change due to F.θ lens characteristics
08/31/1993US5241329 Raster output scanner
08/31/1993US5241328 Apparatus and method for thermal printing of finely detailed images of photographic quality
08/31/1993US5241252 Motor drive system for a polygon scanner
08/31/1993US5241174 Scanning optical apparatus having imaging position adjusting means
08/31/1993US5239759 Image scanner guide
08/29/1993CA2074781A1 Method for amending color nonuniformity of color images
08/27/1993CA2061925A1 Printing apparatus
08/27/1993CA2061896A1 Printing method
08/26/1993WO1993017518A1 Image scanner
08/26/1993DE4243984A1 Telefax or colour television image coding system
08/26/1993DE4237547A1 Telefax or colour television image coding system
08/26/1993DE4205571A1 Original image coding system for telefax transmission - uses same codeword for both black and white image points to reduce number of codewords and increase transmission rate.
08/26/1993CA2061834A1 Printing apparatus and method
08/25/1993EP0557232A2 Coin-operated public fax equipment
08/25/1993EP0557099A1 Image processing apparatus
08/25/1993EP0557055A1 Subscriber initiated non-intrusive network-based analysis of facsimile transmissions
08/25/1993EP0557003A1 Method for identifying film type
08/25/1993EP0556943A1 Method and circuit for generating picture information (pixmaps)
08/25/1993EP0556654A1 A method for compressing color image data
08/25/1993EP0556591A1 Printer using an array of deformable mirror devices (DMD)
08/25/1993CN1075566A heating head and its manufacture
08/24/1993US5239625 Apparatus and method to merge images rasterized at different resolutions
08/24/1993US5239597 For converting a binary dither image
08/24/1993US5239576 Communication apparatus
08/24/1993US5239565 Driving circuit for a charge transfer apparatus
08/24/1993US5239547 Self-diagnosis and self-repair system for image forming apparatus
08/24/1993US5239395 Transmission/copy method and device for a two-way scanning facsimile
08/24/1993US5239394 Apparatus for storing image information on a photographic record member
08/24/1993US5239393 Image reading apparatus
08/24/1993US5239392 Reading apparatus
08/24/1993US5239391 Apparatus for generating halftone dots from dot envelope parameters
08/24/1993US5239390 Image processing method to remove halftone screens
08/24/1993US5239389 Preview print for facsimile transmission
08/24/1993US5239388 Image processing system
08/24/1993US5239387 Buffering control for accommodating variable data exchange rates
08/24/1993US5239386 Communication apparatus used with a card-like device
08/24/1993US5239385 Communication apparatus
08/24/1993US5239384 Video image recording apparatus
08/24/1993US5239383 Image processing apparatus capable of image editing
08/24/1993US5239382 Image sensing apparatus and recording/reproducing method thereof
08/24/1993US5239373 Video computational shared drawing space
08/24/1993US5239370 Color image forming apparatus having color-correcting unit operating in accordance with a gamut of an image input medium
08/24/1993US5239313 Continuously variable resolution laser printer
08/24/1993US5239240 Halogen-lamp illumination/control circuit
08/24/1993CA1321647C Document reading device
08/19/1993WO1993016551A1 Method and apparatus for dynamic correction of microscopic image signals
08/19/1993WO1993011629A3 Document image compression system and method
08/19/1993DE4304111A1 Image generating system for laser photocopier, printer - has solid state laser output pulse width modulated using phase locked loop using analogue voltage controlled oscillator
08/19/1993DE4303081A1 Exposure calibration for colour recorder or printer - involves computation of darkening function for nominal grey values for determn. of corrective transfer function
08/19/1993DE4204473A1 Recording and reproducing terminal appts. for audio information network - enables recorded audio signals to be transmitted over wire or fibre for reception at distant terminal
08/18/1993EP0556133A2 A technique for use in conjunction with an imaging system for providing an appearance match between two images and for calibrating the system thereto
08/18/1993EP0556073A1 Device combining a facsimile and videotext minitel terminal
08/18/1993EP0556067A2 Multi-function data capture devices for computers
08/18/1993EP0555866A1 Color signal transforming appartus
08/18/1993EP0555835A2 Sequential product code quantization of digital color image
08/18/1993EP0555674A2 Image rendering system and associated method for minimizing contours in a quantized digital color image
08/18/1993EP0346442B1 An optical reader head
08/18/1993EP0320511B1 Block adaptive linear predictive coding with adaptive gain and bias
08/17/1993US5237646 Pixel image enhancement employing a reduced template memory store
08/17/1993US5237625 Image contour enhancing device
08/17/1993US5237517 Color printing having a highlight color image mapped from a full color image
08/17/1993US5237432 Image scaling apparatus
08/17/1993US5237431 Image reading apparatus for producing high quality images based on tone correction
08/17/1993US5237430 Facsimile apparatus which stores image data in a bulk storage device
08/17/1993US5237429 Facsimile interface device for radios
08/17/1993US5237428 Facsimile store and multi-address transmission system
08/17/1993US5237427 Facsimile system capable of monitoring an abnormality in a facsimile storage and exchange device
08/17/1993US5237423 Multi-chip solid-state image sensing device
08/17/1993US5237410 Video signal encoding apparatus utilizing control of quantization step size for improved picture quality
08/17/1993US5237409 Color image forming apparatus using color compressed color data
08/17/1993US5237401 Color image reading apparatus including color correction means
08/17/1993US5237400 Compact color image processing apparatus with enhanced density conversion
08/17/1993US5237397 Compressing the digital data
08/17/1993US5237361 Film dispenser with improved articulated catcher
08/17/1993US5237346 Integrated thin film transistor electrographic writing head
08/17/1993US5237191 Solid-state charge-coupled-device imager
08/17/1993US5237180 High resolution image source
08/17/1993US5237177 Radiation image information reading apparatus
08/17/1993US5237172 Calibrated color scanner with reference level adjustment
08/17/1993US5237156 Image storing method and apparatus including detecting index information included in image information read out from a recording medium
08/12/1993DE4203447A1 Digitisation of analogue X=ray pictures for diagnosis - converts data to digital form for transmission to distributed unit with information recorded for archiving
08/12/1993DE4203404A1 Picture copy scanner for facsimile machine - uses TV camera for scanning black and white, grey and colour pictures
08/12/1993DE4202817A1 Kommunikationssystem zur herstellung von fernmeldeverbindungen, insbesondere faksimile- und fernsprechverbindungen A communication system for establishing telecommunication connections, especially facsimile and telephone connections
08/11/1993EP0555150A2 Data communication apparatus having an auto-calling function
08/11/1993EP0555095A2 Method for compressing and extending an image by transforming orthogonally and encoding the image
08/11/1993EP0555064A1 Image processing apparatus and recording apparatus
08/11/1993EP0555061A1 Method and apparatus for compressing and extending an image
08/11/1993EP0555048A2 Image processing apparatus and method therefor
08/11/1993EP0555016A2 Dynamic bit allocation for three-dimensional subband video coding
08/11/1993EP0554985A2 Method and apparatus for contour vector extraction and image en largement reduction
08/11/1993EP0554872A1 Facsimile apparatus
08/11/1993EP0554826A2 Facsimile apparatus and its maintenance charge control apparatus
08/11/1993EP0554825A1 Direct contact type image sensor and its production method
08/11/1993EP0554476A1 Digitizing scanning apparatus and method
08/11/1993EP0554456A1 Facsimile-mail device