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)
10/1989
10/05/1989WO1989009134A1 Thermal head drive circuit and manual scanning-type copying machine
10/05/1989DE3809683A1 Image processing method
10/04/1989EP0335419A2 Method of and apparatus for establishing highlight and shadow densities
10/04/1989EP0334937A1 Image discrimination
10/04/1989EP0334928A1 Scan-multiplexed light valve printer with band-reducing construction
10/03/1989US4872065 Method and apparatus for jitter correction of a polygon mirror in an image recording apparatus
10/03/1989US4872064 System for selective scaling of digital video images
10/03/1989US4872063 Method to increase scanning resolution using a synthetic aperture
10/03/1989US4872062 Method for efficiently dropping out a pattern having a drop-out color and a facsimile apparatus for realizing the same
10/03/1989US4872061 Facsimile
10/03/1989US4872034 Method for dividing density range of component dyes in color hard copy
10/03/1989US4872025 Laser printer capable of changing a pixel density
10/03/1989US4872001 Split screen imaging
10/03/1989CA1262190A1 Image read-out apparatus
09/1989
09/28/1989DE3906630A1 Kombinierte elektrografische druck-, kopier- und telefax-einrichtung mit duplex-einheit Combined electrographic print, copy and fax-device with duplex unit
09/27/1989EP0334669A2 Method of and apparatus for facsimile communications
09/27/1989EP0334580A2 System and method for performing error correction on still frame audio tape format video signals
09/27/1989EP0334518A2 Image forming apparatus
09/27/1989EP0334318A2 Network system
09/27/1989EP0333978A2 Radiation image recording and read-out apparatus
09/27/1989EP0333977A2 Radiation image recording and read-out apparatus
09/27/1989EP0333962A1 Cylindrical cathode ray tube
09/27/1989EP0333840A1 Multiplexed array exposing system having equi-angular scan exposure regions
09/27/1989EP0333825A1 Information storage system
09/27/1989EP0281659B1 Method and apparatus for white-level adjustment
09/26/1989US4870678 Store and forward switching type communication control apparatus
09/26/1989US4870677 Data/facsimile telephone subset apparatus incorporating electrophoretic displays
09/26/1989US4870589 Management apparatus for equipment
09/26/1989US4870506 Color signal conversion method for image copying
09/26/1989US4870505 Method of and apparatus for connecting output image signals from a plurality of line image sensors using a correction read pattern
09/26/1989US4870504 Image scanning apparatus including means for selecting one of a plurality of scanning drums to be scanned
09/26/1989US4870503 Data communication system
09/26/1989US4870502 Optical scanner
09/26/1989US4870501 Image readout apparatus
09/26/1989US4870500 Image signal processing apparatus
09/26/1989US4870499 Image processing apparatus
09/26/1989US4870498 Decompressing run-length-encoded to transition-encoded font image information in an image generator
09/26/1989US4870497 Progressive transmission of high resolution two-tone facsimile images
09/26/1989US4870483 Color image sensor including a plurality of photocells and a plurality of colored filters provided on the plurality of photocells
09/26/1989US4870479 Video graphics memory storage reduction technique
09/26/1989US4870450 Laser imager
09/26/1989US4870434 Printer for continuous formwith justification control
09/26/1989US4870294 Image scanning apparatus with expanded magnification capability
09/26/1989US4870277 Radiation image read-out method and apparatus, and radiation image read-out and reproducing method and apparatus
09/26/1989US4870274 Laser scanner with rotating mirror and housing which is transparent to the scanning radiation
09/26/1989US4870268 Color combiner and separator and implementations
09/26/1989US4869582 Optical scanning apparatus for presenting the dislocation of a stationary mirror
09/26/1989CA1261972A1 Apparatus and method for video signal processing
09/26/1989CA1261201A1 Closed loop thermal printer for maintaining constant printing energy
09/26/1989CA1260841A1 Image reading and/or recording apparatus with enlarging and reducing function
09/26/1989CA1260403A1 Array scanning system
09/26/1989CA1260073A1 Frequency converter for use in a laser printer
09/21/1989WO1989008963A1 Picture recording system
09/21/1989WO1989008962A1 Dynamic printing enhancement
09/21/1989WO1989008961A1 Integrated scanning imaging system
09/21/1989WO1989008960A1 A method to increase scanning resolution using a synthetic aperture
09/21/1989DE3808247A1 Bildaufzeichnungseinrichtung An image recording apparatus
09/20/1989EP0333520A2 Bi-level image display signal processing apparatus
09/20/1989EP0333496A2 Avoiding fine line disappearance in picture reduction processes
09/20/1989EP0333320A2 Apparatus for scanning reading of documents of different formats
09/20/1989EP0333313A2 Circuit for automatically adjusting the digitisation threshold of a reading signal for a digital image scanning device
09/20/1989EP0333312A2 Device for scanning documents
09/20/1989EP0333173A2 Image data transmission apparatus
09/20/1989EP0333159A2 Image data transmission apparatus
09/20/1989EP0333158A2 Image data transmission apparatus
09/20/1989EP0332778A2 Cid image sensor
09/20/1989EP0332696A1 Electronic reproduction apparatus with highlighting color
09/19/1989US4868884 Image extraction mask
09/19/1989US4868865 Terminal switching control apparatus
09/19/1989US4868852 Facsimile machine having an output level adjusting function
09/19/1989US4868835 Energy modulatable laser unit
09/19/1989US4868764 Image encoding and decoding method and apparatus
09/19/1989US4868758 Data communication system
09/19/1989US4868685 Signal preprocessing circuit of a line sensor
09/19/1989US4868684 Image processing apparatus
09/19/1989US4868680 Image pickup apparatus
09/19/1989US4868677 Film recorder system
09/19/1989US4868676 Manual copying apparatus
09/19/1989US4868675 Control circuit for a laser printer
09/19/1989US4868674 Recording apparatus with plural sheet supply and selective conveyance
09/19/1989US4868673 Laser beam scanning device
09/19/1989US4868672 Image reading device having a document handling system
09/19/1989US4868671 Method of and apparatus for noise reduction in multi-gradation image signal in halftone image reader
09/19/1989US4868670 Apparatus and method for improving the compressibility of an enhanced image through use of a momentarily varying threshold level
09/19/1989US4868669 Integrated input/output device
09/19/1989US4868664 Contact type image replication employing a light piping faceplate
09/19/1989US4868663 Optical device for scanning still images in television
09/19/1989US4868661 Video printer
09/19/1989US4868653 Adaptive digital video compression system
09/19/1989US4868643 Color image information transmitting and receiving system with color image signals including start signals for synchronizing storage
09/19/1989US4868642 Apparatus for displaying an image on a video monitor corresponding to an image being photographed
09/19/1989US4868623 Image sensing device
09/19/1989US4868611 Highlight color imaging with first image neutralization using a scorotron
09/19/1989US4868587 Image halftoning system for printers
09/19/1989US4868586 Reversible driving mechanism for electronic printer
09/19/1989US4868393 Radiation image detecting apparatus
09/19/1989US4868388 Radiation image read-out apparatus
09/19/1989US4868383 Linear integrating cavity light source used for generating an intense beam of light
09/19/1989US4867542 Laser exposure apparatus
09/14/1989DE3904255A1 Videodrucker Video printers
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