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)
05/1991
05/22/1991EP0428409A2 Image halftone generation by static ram look-up table
05/22/1991EP0428408A2 Automatic calibration of document reading apparatus
05/22/1991EP0428371A2 Scanning carriage motion control in an image input device
05/22/1991EP0428356A2 Pattern generation method and pattern generation apparatus
05/22/1991EP0428310A2 Image processing apparatus and image transmitting apparatus
05/22/1991EP0428254A2 Circuitry for verifying communicants in a communication apparatus
05/22/1991EP0428100A2 Resonant scanner
05/22/1991EP0428088A2 Electrooptical printer
05/22/1991EP0427760A1 Method and apparatus for accessing a facsimile store and forward network.
05/21/1991WO1991007842A1 Device for clamping recording substrates in sheet form
05/21/1991US5018191 Special service call routing
05/21/1991US5018085 Color printing system usable for reproduction of computer-generated images
05/21/1991US5018078 Apparatus and method for processing huge image information at high speed
05/21/1991US5018072 Optically readable mail system with general and receiver specific information
05/21/1991US5018028 Audio signal recording apparatus and reproducing apparatus
05/21/1991US5018026 Hand-held copying apparatus
05/21/1991US5018025 Input of control information to an electronic image scanner through the imaging apparatus
05/21/1991US5018024 Image processing apparatus using two-dimensional space frequency to discriminate image type
05/21/1991US5018023 Image input method
05/21/1991US5018022 Facsimile device for transmitting portions of documents and holding the transmission process
05/21/1991US5018017 Electronic still camera and image recording method thereof
05/21/1991US5018008 Method of and appartus for setting color separation
05/21/1991US5017988 Image reading device with protective layers
05/21/1991US5017963 Image input device providing background detection arrangement
05/21/1991US5017945 Method of an apparatus for recording images, while avoiding damage due to prolonged contact between platen and recording device
05/21/1991US5017944 Control system for information recording laser beam
05/21/1991US5017850 Mobile member control apparatus
05/21/1991US5017781 Read-out system for a luminescent storage screen in an X-ray diagnostics installation
05/21/1991US5017774 Radiation image read-out and reproducing method
05/21/1991US5016983 Drive method of liquid crystal device
05/21/1991US5016974 Spin initialization procedure
05/21/1991CA2069113A1 Device for clamping recording substrates in sheet form
05/21/1991CA1284375C Electronic mosaic imaging process
05/16/1991WO1991007046A2 Device for sending and receiving graphical documents via teletransmission lines
05/16/1991WO1991007041A1 Called person identification in telecommunication
05/16/1991DE4034540A1 Image processing with discrimination or black-white status
05/15/1991EP0427622A1 Management method for calls entering a telecopier sharing a telephone line with its associated telephone set and a second set
05/15/1991EP0427506A2 Electronic color printing system
05/15/1991EP0427380A2 Method of producing halftone images
05/15/1991EP0427322A1 A method of and means for processing data originating from images
05/15/1991EP0427004A2 Apparatus for processing a hollow cylinder with a laser
05/15/1991EP0426712A1 Film noise reduction by application of bayes theorem to positive/negative film
05/14/1991US5016207 High-speed digital filter processor including parallel paths for processing data, suitable for use in spatial filter image processing
05/14/1991US5016194 Image forming apparatus
05/14/1991US5016193 Pixel and line enhancement method and apparatus
05/14/1991US5016191 Half toning pixel processor
05/14/1991US5016118 Image determining method and apparatus
05/14/1991US5016117 Optical reader having apparatus for discrimination between dither-matrix and non-dither-matrix reading areas, and/or means for determining light emitter drive power values by using reference reflector surface
05/14/1991US5016116 Copying apparatus
05/14/1991US5016115 Point to multi point fax transmission method and system
05/14/1991US5016114 Digital copier apparatus with external laser card storage medium and image compression variable with available memory
05/14/1991US5016107 Electronic still camera utilizing image compression and digital storage
05/14/1991US5016097 Method of obtaining monochromatic image from color original through color image recorder
05/14/1991US5016096 Apparatus for color processing specifically inside or outside a detected region
05/14/1991US5016045 Image reading apparatus
05/14/1991US5016040 Method and apparatus for forming a recording on a recording medium
05/14/1991US5015854 Radiation image displaying apparatus
05/14/1991US5015853 Method of recognizing irradiation field, and method of adjusting image processing conditions
05/14/1991US5015852 Radiation image read-out apparatus
05/14/1991US5015846 Light beam control apparatus and linear scale device suitable for use therein
05/14/1991US5015837 Contact type image sensor with electric shielding
05/14/1991US5015070 Reference grid for optical scanner
05/14/1991US5015064 Electronic printer or scanner using a fiber optic bundle
05/14/1991CA2002842A1 Programmable external peripheral device using a 4 digit private identification number, p.i.n.#, to secure and protect and eliminate unsolicited and unwanted document reception, commonly known as "junk fax", applicable to a facsimile machine, commonly known as a fax machine
05/14/1991CA1284214C Method for editing video still pictures
05/14/1991CA1284211C Cable television system selectively distributing pre-recorder video and audio messages
05/14/1991CA1284046C Wobble correction by two reflections on a facet without bow
05/09/1991WO1991007727A1 System of combined digital photographies
05/09/1991CA2045397A1 System of combined digital photographs
05/09/1991CA2025000A1 Method of producing halftone images
05/08/1991EP0426507A2 Method of and system for electronic funds transfer via facsimile machines
05/08/1991EP0426495A2 Fluid deposition system for producing processed color images
05/08/1991EP0426464A2 Computerized tomographic image reconstruction method for helical scanning
05/08/1991EP0426462A2 Virtual facsimile machine
05/08/1991EP0426435A2 Image forming apparatus for halftone reproduction
05/08/1991EP0426412A2 Compound electronic apparatus
05/08/1991EP0426336A2 Compression of a PCM facsimile signal for transmission in a packet switching network
05/08/1991EP0426260A2 Adaptive zonal coder
05/08/1991EP0426128A2 Image forming apparatus using laser beam
05/08/1991EP0426113A2 Method of and apparatus for recording colour image
05/08/1991EP0426108A1 Sheet-like pad for use with optical reader
05/08/1991EP0425698A1 Image forming apparatus
05/08/1991EP0425583A1 Page memory control in a raster image processor.
05/08/1991DE4035391A1 Optical scanning unit with variable intensity - has separate image generators for forming different intensity images in different regions of scanned surface
05/08/1991DE3936684A1 Geraet zum senden und empfangen von ueber fernuebertragungswege zu uebertragenden bilddokumenten Geraet to send and receive over fernuebertragungswege image to download documents
05/08/1991CA2029397A1 Arrangement for connecting a telefax device or a telephone set to a telecommunication line
05/07/1991US5014334 Signal encoding and decoding system
05/07/1991US5014333 Image processor with smooth transitioning between dither and diffusion processes
05/07/1991US5014332 Image reader
05/07/1991US5014331 Method of detecting an internal point within a closed area
05/07/1991US5014300 Method and apparatus for accessing a facsimile store and forward network
05/07/1991US5014296 Facsimile terminal device having voice message recording capability
05/07/1991US5014198 Image information compression apparatus
05/07/1991US5014138 Process for recording semihalftone images and device for conversion of image dot tonal value data
05/07/1991US5014137 Method of generating an image scanning clock signal for an optical scanning device by selecting one of a plurality of out-of-phase clock signals
05/07/1991US5014136 Electronic still camera device
05/07/1991US5014135 Facsimile apparatus having a thermal image recording head retractable from a recording position
05/07/1991US5014134 Image compression method and apparatus
05/07/1991US5014129 Video signal processing apparatus for converting composite image input signals into output signals having increased scan lines
05/07/1991US5014125 Television system for the interactive distribution of selectable video presentations
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