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