Patents
Patents for H04N 1 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof (142,802)
10/1994
10/25/1994US5359677 Image reader and facsimile machine using such image reader
10/25/1994US5359676 Decompression of standard ADCT-compressed document images
10/25/1994US5359675 Video spectacles
10/25/1994US5359644 Voice/image simultaneous communication apparatus
10/25/1994US5359458 Scanner
10/25/1994US5359438 Encoding apparatus for color image data
10/25/1994US5359437 Method for under-color removal in color image forming apparatus
10/25/1994US5359436 Black recalculation for arbitrary HSL corrections in CMY color space
10/25/1994US5359435 Facsimile apparatus
10/25/1994US5359433 Image processing apparatus with reduced image deterioration in highlight portions
10/25/1994US5359431 Classification to change exposure within a cell of different pixels
10/25/1994US5359430 Block-halftoning method and system with compressed error image
10/25/1994US5359429 Facsimile machine having line density switching function
10/25/1994US5359427 Device for reproducing a recorded still image with a general-purpose computer
10/25/1994US5359425 Image recording apparatus for selectively performing a printer mode and a scanner mode
10/25/1994US5359424 Thermal transfer image forming apparatus using different gamma functions for different density ranges
10/25/1994US5359423 Method for statistical generation of density preserving templates for print enhancement
10/25/1994US5359422 Display device having a plurality of display modes
10/25/1994US5359363 Omniview motionless camera surveillance system
10/25/1994US5359355 Ink jet recording apparatus for recording with variable scanning speeds
10/25/1994US5359207 Wedge scanner utilizing two dimensional sensing arrays
10/25/1994US5359190 Method and apparatus for coupling an optical lens to an imaging electronics array
10/25/1994US5358239 Rotatable paper discharge and guiding device in a scanner
10/25/1994CA2048147C Method and apparatus for scanning a signature document
10/25/1994CA2039080C Data decompression system and method
10/25/1994CA2039038C Data compression system and method
10/20/1994DE4312136A1 Method and device for the communications link of a personal computer to a facsimile unit
10/20/1994DE3844828C2 Half tone picture processing method for digital printer
10/20/1994DE3645247C2 Interactive video-sound data display via TV cable
10/20/1994DE3448469C2 Photocopier with selective zone copying facility
10/19/1994EP0620687A2 Encoding method and apparatus
10/19/1994EP0620678A1 An apparatus for and method of image processing
10/19/1994EP0620677A1 Frequency modulation halftone screen and method for making same
10/19/1994EP0620676A1 Process and architecture for digital micromirror printer
10/19/1994EP0620675A2 Method of and apparatus for converting gradient of image data
10/19/1994EP0620674A1 Method for making a lithographic printing plate
10/19/1994EP0620673A1 Method for making a lithographic printing plate
10/19/1994EP0620672A1 Method for optimizing frequency modulated halftone screens using threshold value mountains
10/19/1994EP0620671A1 Multiple-beam image forming apparatus
10/19/1994EP0620670A1 Method and apparatus for correcting and adjusting digital image output
10/19/1994EP0620535A1 Line printer for high density printing
10/19/1994EP0620534A1 Method for automatic trap selection for correcting for plate misregistration in colour printing
10/19/1994EP0620486A2 Photographic elements for producing blue, green and red exposure records of the same hue and methods for the retrieval and differentiation of the exposure records
10/18/1994US5357607 File storage process for electronic printing systems having multiple disks
10/18/1994US5357584 Method and apparatus for compressing and extending an image
10/18/1994US5357583 Graphics processing apparatus for smoothing edges of images
10/18/1994US5357562 Automated facsimile/voice memory managing system
10/18/1994US5357549 Method of dynamic range compression of an X-ray image and apparatus effectuating the method
10/18/1994US5357543 Data communication equipment
10/18/1994US5357534 Light beam scanning recording apparatus
10/18/1994US5357375 Symmetrical prism beam deflector
10/18/1994US5357354 Color image processing apparatus capable of discriminating between a monochromatic document and a color document
10/18/1994US5357353 Image forming apparatus
10/18/1994US5357352 Image-dependent color shifting of strongly color shifted images
10/18/1994US5357351 Image reading device
10/18/1994US5357350 Image forming apparatus
10/18/1994US5357349 Tonal conversion method for a picture
10/18/1994US5357348 Image forming apparatus producing a composite image of documents of different sizes
10/18/1994US5357347 Communication system with inoperability detector such as "Ink Out" detector in receiving machine
10/18/1994US5357345 Facsimile apparatus capable of successively retrieving related image data
10/18/1994US5357344 Method of and apparatus for recording halftone image
10/18/1994US5357329 Image forming apparatus having two image forming units
10/18/1994US5357273 Resolution conversion via intensity controlled overscanned illumination for optical printers and the like having high gamma photosensitive recording media
10/18/1994US5357245 Communicant verifier
10/18/1994US5357106 Sensor for detecting beam position and start of scan position
10/18/1994US5357099 Contact type image sensor having original support member with a reflecting surface
10/18/1994US5357098 Mounting structure for electro-optical devices
10/18/1994US5355655 System which includes apparatus for transmitting messages to receiving apparatus
10/18/1994CA2001251C Image processing apparatus and method therefor
10/13/1994WO1994023531A1 Process and device for analyzing image data in a digital signal from a scanned document
10/13/1994WO1994023416A1 Multi-source video synchronization
10/13/1994WO1994023274A1 A compliant skirt for a drafting plotter
10/13/1994DE4411876A1 Video interface system and method
10/13/1994DE4411614A1 Method for optimising frequency-modulated screens, using threshold profiles
10/13/1994DE4409226A1 Process and apparatus for the transformation of colour solids
10/13/1994DE4408355A1 Netzwerk-System für kombinierte Aufgaben Network system for combined tasks
10/13/1994DE4343581A1 Method for generating geometric masks by means of a digital colour computer
10/13/1994DE4343362A1 Method for generating harmonic colour corrections in a colour space, in particular CIELAB colour space
10/13/1994DE4341457A1 Method for producing uniform colour region definitions, having addition and removal operators
10/12/1994EP0619675A1 Colour image display system
10/12/1994EP0619674A2 Method and apparatus for producing color internegatives with a digital printer
10/12/1994EP0619673A1 Image sensor and electronic still camera
10/12/1994EP0619672A2 Apparatus and technique for generating a screen reproduction of an image
10/12/1994EP0619671A2 Device for sending and receiving graphical documents via teletransmission lines
10/12/1994EP0619535A1 Process controls system architecture
10/12/1994EP0619529A2 Imaging forming apparatus
10/12/1994EP0619528A1 Laser scanner imaging belt encoding system in electrostatographic printing and method for its use
10/12/1994EP0619512A1 Holder for two-dimensional image
10/12/1994EP0619502A2 Scanning optical rangefinder
10/12/1994EP0619190A1 Information output apparatus and method
10/12/1994EP0619053A1 Decoder and decoding method for prefixed Huffman codes using plural codebooks
10/12/1994CN1026202C Correction algorithm for contiguous CCD elements leakage
10/11/1994US5355440 Color image processing method and apparatus therefor
10/11/1994US5355421 Method of noise detection and noise apparatus
10/11/1994US5355420 Method and apparatus for identification of document skew
10/11/1994US5355379 Error protection for VLC coded data
10/11/1994US5355355 Electronic file apparatus capable of storing code data and image data into optical memory
10/11/1994US5355303 Printing apparatus
10/11/1994US5355234 Image scanning apparatus
10/11/1994US5355233 Conversion of binary to multi-level image data