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)
11/1993
11/03/1993EP0568080A1 Image scanning apparatus
11/03/1993EP0568046A2 Image coding/decoding apparatus
11/03/1993EP0567984A1 Image processing method and apparatus
11/03/1993EP0567864A2 Laser imaging apparatus calibration
11/03/1993EP0567697A1 Method for spatial domain image compression
11/03/1993EP0553286A4 A large area digital scanner
11/02/1993USRE34429 Interactive facsimile system and method of information retrieval
11/02/1993US5259042 Binarization processing method for multivalued image and method to form density pattern for reproducing binary gradations
11/02/1993US5259041 Method of line scanning a document
11/02/1993US5259031 Sheets for concealing information recorded on recording paper for use with a facsimile and method of concealing information recording paper by the use of the concealment sheet
11/02/1993US5259025 Method of verifying fake-proof video identification data
11/02/1993US5258998 Data communication apparatus permitting confidential communication
11/02/1993US5258880 Video signal reproducing apparatus connectable with a printer and reproducing recorded information for printer control
11/02/1993US5258878 Electronic still camera with recording disk and recording control
11/02/1993US5258873 Image-reading device
11/02/1993US5258869 Xerographic laser light modulation with built-in light leveling using optical circulators
11/02/1993US5258859 Image reproducing system
11/02/1993US5258858 Modulated fiber optic image scanner
11/02/1993US5258855 Information processing methodology
11/02/1993US5258854 Converting between write-white, write-black and neutral bitmaps
11/02/1993US5258853 Facsimile apparatus having image memory device
11/02/1993US5258850 Line screen design for gray scale rendering
11/02/1993US5258849 For reproducing an original image
11/02/1993US5258835 Method of quantizing, coding and transmitting a digital video signal
11/02/1993US5258832 Non-perpendicular, unequal frequency non-conventional screen patterns for electronic halftone generation
11/02/1993US5258831 Image reading device capable of color discrimination
11/02/1993US5258783 Image processing method and apparatus with gamma-correction control
11/02/1993US5258780 Beam recorder forming low density dots
11/02/1993US5258776 High resolution thermal printers including a print head with heat producing elements disposed at an acute angle
11/02/1993US5258775 Motion correction through image enhancement
11/02/1993CA2031031C System for the production of crude oil by the injection of treatment fluid
11/02/1993CA1323945C Facsimile apparatus
11/02/1993CA1323904C Control apparatus for electronic image printer
10/1993
10/29/1993CA2094771A1 Transmitter network with a single transmitter frequency
10/28/1993WO1993021726A1 Method and apparatus for displaying a color image
10/28/1993WO1993021725A2 Methods and apparatus for halftoning and inverse halftoning and the transmission of such images
10/28/1993WO1993021603A1 Method and system for transferring a bit-mapped image using vertical and horizontal rules
10/28/1993WO1993021602A1 A method for the high-speed transfer of bit-mapped images
10/28/1993DE4313605A1 Ink-jet recording apparatus for e.g. facsimile - has image processing device which processes section of image covered by ink end marker so that image can be recognised
10/28/1993DE4310727A1 Analysis of colour graphics for reproduction - transforming inputs into values that can be modified by user input from terminal with output to printer and monitor
10/28/1993DE4306025A1 Image processing system with number of input sources - has inputs passed via selectors to memories with processor and two display sections allowing images to be combined
10/28/1993DE4213556A1 Einrichtung zur optischen Abtastung eines Aufzeichnungsträgers, insbesondere einer Phosphorspeicherplatte Means for optically scanning a record carrier, in particular a phosphor storage disc
10/27/1993EP0567288A2 Ink jet recording system using decomposed images
10/27/1993EP0567258A1 Public fax service and system
10/27/1993EP0567179A1 Optically butted electro-optical components
10/27/1993EP0567176A1 Radiation image displaying method and apparatus
10/27/1993EP0567174A1 Radiation image displaying method and apparatus
10/27/1993EP0567171A1 Scanner for PSL radiographic cassettes
10/27/1993EP0566999A1 Optical scanner
10/27/1993EP0566932A2 Image forming apparatus
10/27/1993EP0566915A1 Sharpness processing apparatus
10/27/1993EP0566914A1 Color tone correcting apparatus
10/27/1993EP0566696A1 Controller for spark discharge imaging.
10/27/1993EP0566581A1 Image undithering apparatus and method.
10/26/1993US5257377 Process for automatically migrating a subset of updated files from the boot disk to the replicated disks
10/26/1993US5257340 Linear coated core/clad light source/collector
10/26/1993US5257327 Method of and apparatus for forming a one-page-image
10/26/1993US5257308 Pair facsimile devices
10/26/1993US5257138 Optical unit for use in an image forming apparatus
10/26/1993US5257120 Image processing apparatus
10/26/1993US5257119 Image processing apparatus which adds apparatus identification data to images
10/26/1993US5257117 Computer-facsimile system having separately a sending device and a receiving device
10/26/1993US5257116 High definition image generating system for image processing apparatus
10/26/1993US5257115 Image recording apparatus using pseudo tone generated images
10/26/1993US5257114 Image communication apparatus with rolled record sheet cutter
10/26/1993US5257112 Facsimile mail system with mail center equipment
10/26/1993US5257098 Printing method of color video printer
10/26/1993US5257097 Method and apparatus for selective interception of a graphics rendering operation for effecting image data modification
10/26/1993US5257075 Image forming apparatus
10/26/1993US5257074 Image forming apparatus
10/26/1993US5257048 Optical element and photoreceptor registration system for a raster output scanner in an electrophotographic printer
10/26/1993US5257047 Control apparatus and method for image-forming system
10/26/1993US5257041 Method and circuit for driving an electromechanical device rapidly with great precision
10/26/1993US5257038 Focusing laser diode mount on a write head
10/26/1993US5257037 Compact image forming apparatus with color position adjustment
10/26/1993US5256868 Contact scanners for scanning images of an illuminated film onto a photosensor array
10/26/1993CA2032342C Picture digitizing system
10/26/1993CA1323685C Apparatus and method for storing and transmitting images represented by logic signals
10/21/1993DE4309879A1 Analysis of image boundaries in scanning of colour images - determines frequency distribution of brightness values to generate maximum and minimum brightness limits
10/21/1993DE4309877A1 Analysis of colour samples obtained from scanning - identifying regions of very great and small levels of brightness together with colour units for identification
10/20/1993EP0566300A1 Image processing system and method employing adaptive scanning of halftones to provide better printable images
10/20/1993EP0566219A2 Image processing apparatus
10/20/1993EP0566125A1 Method and apparatus for recording stereoscopic images
10/20/1993EP0565861A1 Image signal processing apparatus
10/20/1993EP0565776A1 Color image sensing apparatus and method
10/20/1993EP0565738A1 System for encoding and decoding data in machine readable graphic form
10/20/1993EP0536326A4 Electronic time vernier circuit
10/20/1993EP0511309A4 System for managing document entry and flow using data extracted by means of electronic imaging
10/20/1993CN1022532C Controller for G3 type simplex radio facsimile
10/19/1993US5255351 Pulse-width modulation device
10/19/1993US5255330 Image acquisition sample clock phase control employing histogram analysis
10/19/1993US5255312 Facsimile machine connectable to various communication equipments
10/19/1993US5255311 Data communication apparatus
10/19/1993US5255171 Colored light source providing intensification of initial source illumination
10/19/1993US5255115 Optical scanning apparatus and recording apparatus using the same
10/19/1993US5255114 High resolution scanner
10/19/1993US5255106 Method and apparatus for delivering secured hard-copy facsimile documents
10/19/1993US5255105 Encoding image data
10/19/1993US5255095 DC restore circuit in a video interface for medical imaging system
10/19/1993US5255085 Adaptive technique for providing accurate tone reproduction control in an imaging system
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