| 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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| 03/05/1991 | CA1281128C Array of thin film photovoltaic elements for scanning large area image bearing surface |
| 03/02/1991 | CA2024358A1 Photoelectric scanner |
| 02/28/1991 | CA2019981A1 Image recorder |
| 02/27/1991 | EP0414505A2 Edge enhanced error diffusion algorithm |
| 02/27/1991 | EP0414454A2 Copy quality monitoring |
| 02/27/1991 | EP0414281A2 Portable laser diode scanning head |
| 02/27/1991 | EP0414271A2 Method and apparatus for converting a line density of a bi-level image signal |
| 02/27/1991 | EP0414193A2 Adaptive quantization coder/decoder |
| 02/27/1991 | EP0414152A2 Image forming apparatus |
| 02/27/1991 | EP0414131A2 Facsimile communications apparatus |
| 02/27/1991 | EP0264405B1 Process and device for electronic page assembly for use in reproduction |
| 02/27/1991 | CN1049583A Video graphics display memory swizzle logic circuit and method |
| 02/27/1991 | CN1049582A Apparatus and method for automatically tensioning and relaxing record material |
| 02/26/1991 | US4996714 Computerized filing and retrieval system for signature and pictorial documentation |
| 02/26/1991 | US4996707 Text-to-speech converter of a facsimile graphic image |
| 02/26/1991 | US4996650 Print control system |
| 02/26/1991 | US4996610 Disk-type magnetic recording apparatus with video signal discrimination means |
| 02/26/1991 | US4996606 Light emitting device and original reading apparatus having the device |
| 02/26/1991 | US4996605 Method and apparatus for image scanning input for an image scanning recording apparatus |
| 02/26/1991 | US4996604 Image scanner |
| 02/26/1991 | US4996603 For obtaining a binary signal from multi-level signal |
| 02/26/1991 | US4996602 Image-processing apparatus |
| 02/26/1991 | US4996591 Method of and apparatus for processing color image |
| 02/26/1991 | US4996559 Optical system supporting mechanism for an image processing equipment |
| 02/26/1991 | US4996542 Apparatus for scanning sheet-shaped recording medium between edge rollers |
| 02/26/1991 | US4996540 Recorder with ligament supported scan mirror and resilient optical system support |
| 02/26/1991 | US4996537 Method of and apparatus for recording image |
| 02/26/1991 | US4996413 Apparatus and method for reading data from an image detector |
| 02/26/1991 | US4995602 Facsimile device |
| 02/26/1991 | CA1280801C Multi-mode imaging system |
| 02/22/1991 | CA2023736A1 Image recording apparatus |
| 02/21/1991 | WO1991002427A1 A method and an associated apparatus for calibrating a color digital hardcopy device |
| 02/21/1991 | WO1991002426A2 Rapid variable angle digital screening |
| 02/21/1991 | WO1991002425A1 Apparatus and method for transforming a digitized signal of an image |
| 02/21/1991 | WO1991000666A3 Method and apparatus for processing digital data |
| 02/21/1991 | DE4026305A1 Copier with drive moving scanner in two directions - has signal generator supplying signal to detector according to speed of movement of scanner |
| 02/21/1991 | DE3927162A1 Vorrichtung zum automatischen auf- und abspannen von aufzeichnungsmaterial und betriebsweise der vorrichtung Device for automatic up and wind down from record material and operation, the device |
| 02/20/1991 | EP0413570A2 Picture data compression |
| 02/20/1991 | EP0413569A2 Thermal imaging system |
| 02/20/1991 | EP0413557A2 Image processing apparatus |
| 02/20/1991 | EP0413413A2 Thermal head printer |
| 02/20/1991 | EP0413336A2 Facsimile communication apparatus |
| 02/20/1991 | EP0413334A2 Printing apparatus and facsimile equipped therewith |
| 02/20/1991 | EP0250468B1 Digital color image processing with histogram shape correction |
| 02/20/1991 | EP0235203B1 Film video player/printer with cropping control |
| 02/20/1991 | EP0235202B1 Film video player/printer |
| 02/19/1991 | US4995093 Radiation field recognition method |
| 02/19/1991 | US4995092 Circuit arrangement for white level acquisition for the black/white quantization of the scan signals of individual photo sensors |
| 02/19/1991 | US4995073 Communication apparatus and communication system having automatic attribution switching |
| 02/19/1991 | US4994926 Facsimile telecommunications system and method |
| 02/19/1991 | US4994922 Image storage and retrieval apparatus |
| 02/19/1991 | US4994921 Halftone imaging system and method |
| 02/19/1991 | US4994913 Still picture transmission-display apparatus |
| 02/19/1991 | US4994911 Image information signal transmitting system with selective transmission of input data or extracted data |
| 02/19/1991 | US4994907 Color sensing CCD with staggered photosites |
| 02/19/1991 | US4994901 Method and apparatus for increasing the gamut of an additive display driven from a digital source |
| 02/19/1991 | US4994822 Pulse count modulation for thermal printing |
| 02/19/1991 | US4994678 Apparatus for detecting a sheet by displacement of a roller |
| 02/19/1991 | US4994662 Radiation image read-out apparatus and method for operating the same |
| 02/19/1991 | US4993792 Scanning optical system in which a ghost image is eliminated |
| 02/18/1991 | WO1991003121A1 Device for automatically clamping and releasing data supports and its operation |
| 02/18/1991 | WO1991003120A1 Device for automatically clamping and releasing data supports and its operation |
| 02/18/1991 | CA2065363A1 Device for automatically clamping and releasing data supports and its operation |
| 02/18/1991 | CA2065020A1 Device for automatically clamping and releasing data supports and its operation |
| 02/14/1991 | DE4024226A1 Facsimile machine transmitting both sides of document - automatically uses single scanner with automatic document rotation |
| 02/14/1991 | DE3926671A1 Envelope packing equipment for electronically received documents - stacks incoming documents and passes them to upper and lower paper roll which is then fastened |
| 02/14/1991 | DE3926402A1 Facsimile appts. for text and images - has outlet from printer protected by paper guide with closable collector |
| 02/13/1991 | EP0412809A2 Data compression system |
| 02/13/1991 | EP0412754A1 Thermal Printer |
| 02/13/1991 | EP0412723A2 Facsimile communication system |
| 02/13/1991 | EP0412461A2 Facsimile apparatus and facsimile transmission method for digital communication network |
| 02/13/1991 | CN1011654B Third-class facsimile repeater |
| 02/12/1991 | US4993025 High efficiency image data transfer network |
| 02/12/1991 | US4992955 Apparatus for representing continuous tone and high contrast images on a bilevel display |
| 02/12/1991 | US4992890 System for plotting and scanning graphic images |
| 02/12/1991 | US4992889 Encoding apparatus for compressing and outputting image data |
| 02/12/1991 | US4992888 Image reading apparatus using a motor and controlling driving pulses supplied to the motor |
| 02/12/1991 | US4992887 Method of storing and transmitting image data as an image file suitable for an image search |
| 02/12/1991 | US4992886 Method and apparatus for encoding data within the subcode channel of a compact disc or laser disc |
| 02/12/1991 | US4992885 Method of recording and reproducing audio information in correlation with divided screen graphics information |
| 02/12/1991 | US4992884 Copier with an optional facsimile function and method of controlling the same |
| 02/12/1991 | US4992883 Image sensing arrangement |
| 02/12/1991 | US4992882 Printer |
| 02/12/1991 | US4992879 Image pick-up apparatus |
| 02/12/1991 | US4992864 Image processor having density indicator |
| 02/12/1991 | US4992863 Colored image reading apparatus |
| 02/12/1991 | US4992862 Color conversion display apparatus and method |
| 02/12/1991 | US4992861 Color image reproduction apparatus having a digitally operated look-up table constructed by means of a least squares algorithm |
| 02/12/1991 | US4992860 Color scanning system |
| 02/12/1991 | US4992827 Image forming apparatus |
| 02/12/1991 | US4992824 Apparatus and method utilizing an LCD for printing |
| 02/12/1991 | US4992807 Gray scale printhead system |
| 02/12/1991 | US4992804 Modulated beam scanning with pixal exposure control |
| 02/12/1991 | US4992664 Radiation image read-out, processing and reproducing methods |
| 02/12/1991 | US4992655 Self-resonant galvanometer scanning system with evacuated chamber |
| 02/12/1991 | US4992653 Linear image sensor |
| 02/12/1991 | US4992060 Apparataus and method for reducing radio frequency noise |
| 02/12/1991 | US4991949 Dust protection device for an image sensor |
| 02/12/1991 | US4991833 Automatic document feeder |
| 02/12/1991 | US4991828 Document feeding apparatus |