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)
07/1991
07/02/1991CA1285605C Method and apparatus for non-impact printing
07/02/1991CA1285604C Imaging system utilizing an oscillating gradient index lens array
07/02/1991CA1285600C Multifunction ionographic marking apparatus
06/1991
06/30/1991CA2031652A1 Printing press and method
06/27/1991WO1991009494A2 Flare light compensation
06/27/1991WO1991009493A1 Method for deriving noise-reduced estimates of colour signal parameters from multiple colour/luminance image sensor outputs
06/27/1991WO1991009490A2 Improved dot printer and method for grey level recording
06/27/1991WO1991009489A2 Mixed matrix image processing for rendering halftone images with variable dot sizes
06/27/1991WO1991009488A1 Picture filing device and method thereof
06/27/1991WO1991009487A1 Method and apparatus for grey level recording using multiple addressability
06/27/1991WO1991009486A1 Non-contact optical print head for image writing apparatus
06/27/1991WO1991008905A1 Thermal printer
06/27/1991WO1991008904A1 Thermal printer
06/27/1991WO1991008902A1 Bidirectional hot melt ink jet printing
06/27/1991WO1991007840A3 Digital compression method and system with improved coding efficiency
06/27/1991DE4041872A1 Laser printing scanning system - has fast spot width control and uses modulated semiconductor light-guide array
06/27/1991DE4026321A1 Composing and processing image for typography - printing stored image data with or without surrounding image frame without additional instruction using independent CPU
06/26/1991EP0434449A2 Dynamic equalization for multichannel optical imaging systems
06/26/1991EP0434429A2 Image processing apparatus
06/26/1991EP0434416A2 Electrographic plotters
06/26/1991EP0434415A2 Method of measuring skew angles
06/26/1991EP0434351A2 Facsimile terminal equipment
06/26/1991EP0434286A2 Image communication device
06/26/1991EP0434285A2 Image reading device
06/26/1991EP0434215A2 Photoelectrode conversion device having a control electrode structure and apparatus equipped with the same
06/26/1991EP0434005A1 Image data compression method using a run prediction technique
06/26/1991EP0433985A2 Spatial light modulator printer
06/26/1991EP0433944A2 Image processing apparatus
06/26/1991EP0433910A2 Self-referencing start of plot system and method
06/26/1991EP0433421A1 Priority interrupt during editing mode.
06/25/1991US5027424 Image reader
06/25/1991US5027423 Image-processing integrated circuit device
06/25/1991US5027421 Data processing apparatus having function for registering abstract image data
06/25/1991US5027401 System for the secure storage and transmission of data
06/25/1991US5027386 LAN interfaced facsimile machine
06/25/1991US5027385 Facsimile apparatus for communicating on external and internal telephone sets
06/25/1991US5027289 Method and device for controlling a plotter
06/25/1991US5027274 Method and system for managing a process of image data acquired by a computed radiography technique and additional information added to the image data
06/25/1991US5027230 Still image information reproducing apparatus including searching function
06/25/1991US5027227 Image rotating device
06/25/1991US5027226 Contact type image sensor
06/25/1991US5027224 Image communication system
06/25/1991US5027223 Electronic still camera
06/25/1991US5027221 Digital image recording system with preset control for selecting output formats based on the selected amount of pixel color and density data
06/25/1991US5027220 Image recording apparatus using a CRT as a light source
06/25/1991US5027219 Apparatus and method for converting pictures or images into video signals
06/25/1991US5027216 Image pickup apparatus
06/25/1991US5027214 Electronic still camera using variable-length data compression for storing still image signals
06/25/1991US5027198 Teleconference system with image display and input means
06/25/1991US5027197 Photosensitive medium
06/25/1991US5027196 Method of and apparatus for simulating object image to be printed
06/25/1991US5027195 Color detection and/or recognition apparatus
06/25/1991US5027151 Film transparency holder
06/25/1991US5027135 Printer self-diagnosis device
06/25/1991US5027132 Position compensation of laser scan for stage movement
06/25/1991US5027117 Conversion using a variable reference based on image density
06/25/1991US5027110 Arrangement for simultaneously displaying on one or more display terminals a series of images
06/25/1991US5027078 Unscreening of stored digital halftone images by logic filtering
06/25/1991US5026133 Large format laser scanner with wavelength insensitive scanning mechanism
06/20/1991DE4039702A1 Sheet feed system suitable for photosensitive film - uses roller pair with integral drive motor e.g. for image recorder and reader
06/20/1991DE4039680A1 Remotely controlled facsimile transceiver - receives requests via telephone line for list of remote-control commands which it sends to remote transceiver
06/19/1991EP0433232A1 Photographic colour copier
06/19/1991EP0433056A2 System for recording an image having a facial image and ID information
06/19/1991EP0432969A1 Digital image generation
06/19/1991EP0432806A2 Method of and apparatus for compressing image data
06/19/1991EP0432723A2 Facsimile device enabling highly efficient data transmission
06/18/1991US5025497 Facsimile apparatus connected to data communication network having time-saving capability
06/18/1991US5025483 System for scanning documents without loss of image data
06/18/1991US5025482 Image transformation coding device with adaptive quantization characteristic selection
06/18/1991US5025481 Dot region discriminating method
06/18/1991US5025480 Background referencing
06/18/1991US5025478 Method and apparatus for detecting false edges in an image
06/18/1991US5025475 Processing machine
06/18/1991US5025469 Method and apparatus for reducing the turn-around time in facsimile transmission
06/18/1991US5025375 Volume data transmission system
06/18/1991US5025326 Facsimile machine using cut sheets as received-signal recording paper and method of feeding the cut-sheets
06/18/1991US5025325 Graphics scaling method for high resolution printers
06/18/1991US5025322 Method and apparatus for grey level recording using multiple addressability
06/18/1991US5025321 Facsimile machine using thin film electroluminescent device
06/18/1991US5025320 Video imaging podium
06/18/1991US5025313 System for minimizing optical distortions and chromatic aberrations in a linear color scanner
06/18/1991US5025282 Color image forming apparatus
06/18/1991US5025273 RF drive circuit for an ion projection printing head
06/18/1991US5025272 Dot exposure type image forming apparatus
06/18/1991US5025157 Concave cylindrical sheet
06/18/1991US5025146 Optical sensor line of amorphous or polycrystalline photoelectric material having a plurality of sensor elements
06/18/1991CA1285063C Image reading device
06/13/1991WO1991008648A1 A hybrid residual-based hierarchical storage and display method for high resolution digital images in a multiuse environment
06/13/1991WO1991008642A1 Single pass color substitution
06/13/1991WO1991008641A2 Dual processor image compressor/expander
06/13/1991WO1991008640A1 Copier and process for copying
06/13/1991WO1991008639A1 Copier with auto scaling, auto paper select, and window scaling
06/13/1991WO1991008637A1 Payphone system
06/13/1991WO1991008547A1 Histogram/variance mechanism for detecting presence of an edge within block of image data
06/13/1991WO1991008546A1 Method for compressing images by self-organization of a neuronal network
06/13/1991WO1991008521A1 Frost image recording medium and method and apparatus for preparing and reading frost image
06/13/1991WO1991008520A1 Method and apparatus for color image processing
06/13/1991WO1991008504A1 Optical positioning system for at least one pixel
06/13/1991WO1991007046A3 Device for sending and receiving graphical documents via teletransmission lines
06/13/1991DE4039144A1 Signal evaluation system for detecting line of sight - detects variation point between two signal levels using defined threshold level
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