Patents
Patents for H04N 1 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof (142,802)
12/1991
12/31/1991US5077614 Scanner with document and copy sheet registration means
12/31/1991US5077612 Portable electronic picture recording device with nonvolatile electronic memory
12/31/1991US5077610 Previewing cuts and transformations in an electronic image composition system
12/31/1991US5077606 Color signal emphasizing/de-emphasizing circuit
12/31/1991US5077605 Color image reading apparatus having shading correction for plural color component signals
12/31/1991US5077604 Color printing, correction, and conversion apparatus and method
12/31/1991US5077566 Image forming apparatus
12/31/1991US5077502 Compensation for drift in a cathode ray tube
12/27/1991EP0462905A2 Electronic camera
12/27/1991EP0462817A2 Image processing method and apparatus
12/27/1991EP0462784A2 Image processing apparatus and method
12/27/1991EP0462712A2 Signal processor for video printer
12/27/1991EP0462127A1 Printer with at least two spatially separate printing stations.
12/26/1991WO1991020156A1 Electrographic process utilizing fluorescent toner and filtered detector for generating an electrical image signal
12/26/1991WO1991020154A1 Thermal printer with image signal processing
12/26/1991WO1991020153A2 Fax machine
12/26/1991WO1991020152A1 Scanner with a linearized vco pixel clock
12/26/1991WO1991020081A1 Digital medium providing information per still-frame
12/26/1991WO1991020074A1 Electronic time vernier circuit
12/26/1991WO1991020047A1 Apparatus and method for performing coordinate transformation employing stored values and interpolation
12/26/1991WO1991017646A3 Picture coding, for example for telefax and colour television
12/24/1991US5075883 Analog and analytical computation method for determining detector MTF
12/24/1991US5075872 Method for converting a multiple-density image into a binary density image
12/24/1991US5075796 Optical article for multicolor imaging
12/24/1991US5075788 Image quality control apparatus capable of density-correcting plural areas of different types
12/24/1991US5075787 Reproduction apparatus and method with alphanumeric character-coded highlighting for selective editing
12/24/1991US5075784 Facsimile apparatus capable of transmitting at an optimum resolution
12/24/1991US5075783 Facsimile apparatus and facsimile communication method
12/24/1991US5075782 Reproduction apparatus operation during malfunction recovery
12/24/1991US5075780 Method of reproducing gradations according to a ratio of fine pixels turned on to fine pixels turned off
12/24/1991US5075770 Color balanced image detector system
12/24/1991US5075769 Video identification card system
12/24/1991US5075768 Method and apparatus for color separation scanning
12/24/1991US5075767 Digital color image signal processing apparatus
12/24/1991US5075719 Lens driving device
12/24/1991US5075698 Method of driving a recording head and a recording apparatus utilizing this method
12/24/1991US5075689 Bidirectional hot melt ink jet printing
12/24/1991US5075686 Switch input device
12/24/1991US5075609 Recording apparatus
12/24/1991US5075558 Transparent sheet-like pad with reflective grid layer to provide position information to an optical reader
12/24/1991US5075539 Method and apparatus for adjusting the position of image reading equipment
12/24/1991US5075244 Metal gate electrodes of thin film transistor switching elemen ts, gate insulating layers, semiconductor active and ohmic con tact layers, drain and source electrodes, barrier metal, photo detect elements, photoconductor, contact holes, metal wiring
12/24/1991US5074641 Optical scanning device
12/24/1991US5074449 Paper cutting apparatus
12/18/1991EP0461996A2 Picture processing apparatus
12/18/1991EP0461920A2 Printing systems
12/18/1991EP0461859A2 Facsimile terminal equipment
12/18/1991EP0461854A2 Reproduction of line-raster data by raster output scanning at a line scan density capable of being fractionally related to the raster line density of the data
12/18/1991EP0461810A2 Image forming apparatus and method for forming image using recording head and test image
12/18/1991EP0461759A2 Recording apparatus for performing recording using recording head
12/18/1991EP0461671A2 Image forming apparatus
12/18/1991EP0461622A2 Method and apparatus for storing and merging multiple optically scanned images
12/18/1991EP0461467A2 Apparatus for and method of recording image
12/18/1991EP0461302A2 Image sensor or reading device containing a light source and a method for manufacturing the same
12/18/1991EP0461249A1 False density contour suppression using stored random probabilities to form print/no print decisions
12/18/1991EP0461229A1 Apparatus and Method for scaling image data by a fractional scaling factor
12/18/1991EP0461121A1 Non-impact print apparatus and method for grey level recording.
12/18/1991EP0362196A4 Interface device
12/18/1991CN2091049U Auto-voltage stabilizing watch apparatus for picture and manuscript facsimile printer
12/17/1991US5073966 Image data processing apparatus
12/17/1991US5073965 Image processing system
12/17/1991US5073953 System and method for automatic document segmentation
12/17/1991US5073927 Imaging identification method for a communication system
12/17/1991US5073921 Line connection switching apparatus for connecting communication line in accordance with matching result of speech pattern
12/17/1991US5073868 Multiple unit image processing with a direct mode and multi-mode copying capacity
12/17/1991US5073829 Cassette supply apparatus
12/17/1991US5073827 Image communication apparatus
12/17/1991US5073820 Image data coding apparatus and coding method
12/17/1991US5073818 Method for processing color image and apparatus therefor
12/17/1991US5073793 Multi-color image forming method and an apparatus therefor
12/17/1991US5073028 For measuring color characteristics
12/15/1991CA2019102A1 Fax machine
12/12/1991WO1991019375A1 High-speed thermal printing apparatus
12/12/1991WO1991019374A1 Scanner with a linearized pixel clock
12/12/1991WO1991019373A1 Scanner with non-linearity compensating pixel clock
12/12/1991WO1991019271A1 Improved method and apparatus for coding an image
12/12/1991WO1991019242A2 Neighborhood-based merging of image data
12/11/1991EP0461023A2 Communication method and apparatus
12/11/1991EP0460951A2 A signal communication system
12/11/1991EP0460869A2 Data retrieval system, display apparatus and method of recording and displaying
12/11/1991EP0460832A1 Power switching apparatus having improved power switching timing
12/11/1991EP0460677A1 An image binarization threshold computing apparatus
12/11/1991EP0460661A2 Facsimile apparatus
12/11/1991EP0460659A2 Facsimile apparatus
12/11/1991EP0460630A2 Facsimile device with improved summary confirmation of source information
12/11/1991EP0460197A1 Thermal printer
12/11/1991EP0460188A1 High speed compression of imagery data
12/11/1991EP0460187A1 Methods and associated apparatus for forming image data metrics which achieve media compatibility for subsequent imaging applications.
12/10/1991US5072311 Film image reading apparatus with length/width discrimination signal
12/10/1991US5072310 Ic card for image processor
12/10/1991US5072309 Information retrievel arrangement including facsimile apparatus
12/10/1991US5072308 Communication signal compression system and method
12/10/1991US5072307 Facsimile device
12/10/1991US5072306 Sheet feeding device for facsmile apparatus
12/10/1991US5072305 Picture producing apparatus using picture information values correlated to light intensities in tonal conversion formula
12/10/1991US5072304 Image reading and recording apparatus with correct image mode and mirror image mode
12/10/1991US5072303 Combined printer and facsimile apparatus which scans using different scan rates and dot sizes
12/10/1991US5072300 Beam scan velocity modulation apparatus with disabling circuit
12/10/1991US5072295 Adaptive quantization coder/decoder with limiter circuitry
12/10/1991US5072291 Image information signal processing apparatus for improving reproduced image quality by discriminating the type of input image and selecting a particular processing in accordance therewith