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)
11/1989
11/07/1989US4878720 Device for deflecting a bundle of light rays
11/07/1989CA1262763A1 Method and apparatus for the synchronization of a moveable material web and an optical deflection path
11/02/1989WO1989010675A1 Method and system for compressing color video data
11/02/1989WO1989010674A1 Video telecommunication system and method for compressing and decompressing digital color video data
11/02/1989WO1989010673A1 Method and system for compressing and decompressing digital color video statistically encoded data
11/02/1989EP0340033A2 A method of describing a color in a triaxial planar vector color space
11/02/1989EP0339948A2 Compressing and decompressing digital color video statistically encoded data
11/02/1989EP0339938A2 Method and system for compressing colour video encoded data
11/02/1989EP0339893A2 Recording apparatus
11/02/1989EP0339648A2 Method of generating raster data useful in reproducing multitone image
11/02/1989EP0339287A2 Printer having reversible driving mechanism
11/02/1989EP0339158A2 Color image forming apparatus and color image forming system
11/02/1989EP0339076A1 Dot printer with toner characteristic compensation means
11/02/1989DE3812962A1 Device for digitising and compressing the video signals from large-area images
10/1989
10/31/1989US4878250 Image processing system
10/31/1989US4878242 Teleconferencing system
10/31/1989US4878178 Image processing device
10/31/1989US4878130 Reproduction apparatus
10/31/1989US4878127 Laser engraving machine for preparing rotary screen printing screens
10/31/1989US4878126 Imgae processing apparatus
10/31/1989US4878125 Method and apparatus for image processing with fed-back error correction
10/31/1989US4878123 Image processing apparatus having image memory
10/31/1989US4878119 System for synchronizing integration pulses with integration signal in an asynchronous raster input scanner
10/31/1989US4878110 Color image processing apparatus which accurately registers multiple color images by counting pulses from a timer reset by a drum index signal
10/31/1989US4878068 Beam recorder having a varying beam intensity for maintaining a true reproduced image
10/31/1989US4878066 Beam scanner with distortion correction
10/31/1989US4878065 Thermal printing control circuit
10/31/1989US4878063 Multicolor printing apparatus and method having vernier detection/correction system for adjusting color separation planes
10/31/1989US4877958 Radiation image read-out method and apparatus
10/31/1989US4877955 Optical unit with detachably-mounted optics to maintain hermetic sealing of the unit
10/31/1989US4877310 Electronically variable MTF filter for image sensor arrays
10/25/1989EP0338812A2 Magnetic tape recording/reproducing apparatus for digital video signals and associated digital sound signals, and corresponding recording/reproducing method
10/25/1989EP0338726A2 Image processing apparatus
10/25/1989EP0338457A1 Color conversion display apparatus and method
10/25/1989EP0221131B1 Bimodal digital image processing method
10/25/1989EP0190329B1 Video disk apparatus providing organized picture playback
10/24/1989US4876613 Manually operated copier with a damper
10/24/1989US4876612 Image processing apparatus
10/24/1989US4876611 Process for recording semihalftone images
10/24/1989US4876610 Image processing apparatus with binarization-error dispersal
10/24/1989US4876609 Digital copier with a facsimile function
10/24/1989US4876608 Focus and signal to noise measurement routines in input scanners
10/24/1989US4876607 Complex character generator utilizing byte scanning
10/24/1989US4876606 Image forming system
10/24/1989US4876605 Image reading device
10/24/1989US4876604 Apparatus for communicating image data of different resolutions
10/24/1989US4876598 Apparatus for digitizing a composite video signal
10/24/1989US4876597 Video observation systems
10/24/1989US4876585 Contact type image sensor with separate charge transfer device
10/24/1989US4876556 Beam recorder with a temperature sensor for light quantity control
10/24/1989US4876452 Radiation image read-out apparatus
10/24/1989CA1262489A1 Laser scanning apparatus
10/19/1989WO1989010036A1 Scanner for scanning an original document
10/19/1989WO1989009980A1 An image or pattern transfer optical system for thermal dye transfer apparatus
10/19/1989WO1989009960A1 Display and writing device
10/19/1989WO1989009959A1 Document scanner
10/19/1989DE3908086C1 Method for compressing and decompressing digital data and device for carrying out the method
10/18/1989EP0337812A2 Method and apparatus for creating a photomask for projecting an image
10/18/1989EP0337772A2 Multi-address calling system
10/18/1989EP0337610A2 Facsimile apparatus
10/18/1989EP0337427A2 Method of and apparatus for recording halftone image
10/18/1989EP0337325A2 Image processing method
10/17/1989US4875104 Document sheet position detecting device for image forming apparatus
10/17/1989US4875103 Apparatus and method for aligning a repositionable imaging sensor with a photographic image in a film video system
10/17/1989US4875099 Device for merging plural sensor outputs onto a single conductor
10/17/1989US4875092 Image forming apparatus with positioning-mark forming function
10/17/1989US4875090 Information data transmission system
10/17/1989US4875074 Image recording apparatus
10/17/1989US4875073 Color picture image recording apparatus capable of adjusting color tone in the copy sheet
10/17/1989US4875071 Shading correcting apparatus for photographic printer
10/17/1989US4874957 Contact type image sensor
10/17/1989US4874815 ABS Compositions having trimodal rubber particle distributions
10/12/1989EP0255828A4 Image recording apparatus.
10/12/1989DE3810791A1 Electrode structure for an electro-optical light valve row and method for driving it
10/11/1989EP0336776A2 Image magnification
10/11/1989EP0336764A2 Pixel and line enhancement method and apparatus
10/11/1989EP0336752A2 Improvements in and relating to a method of and apparatus for producing an enlargement of a visual representation
10/11/1989EP0336691A2 Thermal transfer printer
10/11/1989EP0336510A2 Predictive still-image encoder
10/11/1989EP0336410A2 Method of obtaining white reference data used for correcting non-uniformity in photoelectric cell array
10/11/1989EP0336403A2 Image reading apparatus
10/11/1989EP0336365A2 Method of and apparatus for eliminating interblock distortion due to compressed image data
10/11/1989EP0336317A2 Electronic still camera capable of selecting recording media
10/11/1989EP0336038A2 Apparatus for reproducing and processing picture information from a recording medium
10/11/1989EP0335943A1 System for high resolution exposure address with coarser resolution exposing array
10/11/1989EP0335872A1 Process and circuitry for reducing the data rate of digital pictures.
10/11/1989CN1036304A Method and portable device for recording, storing and possibly treating and reproducing graphic symbols appearing on any carrier
10/10/1989US4873579 Image information reading apparatus
10/10/1989US4873577 Edge decomposition for the transmission of high resolution facsimile images
10/10/1989US4873570 Color image processing apparatus for selectively altering image colors
10/10/1989US4873569 Image reader having spectroscope for color separation
10/10/1989US4873438 Radiation image read-out apparatus using a fluorescent light guide
10/10/1989US4873437 Radiation image read-out method and apparatus
10/10/1989US4873436 Nondestructive readout of a latent electrostatic image formed on an insulating material
10/10/1989US4873435 Laser beam scanning system
10/10/1989US4873428 Image processing apparatus using conversion means
10/10/1989US4872743 Varifocal optical element
10/10/1989CA1262286A1 Matching hardcopy color to display color
10/10/1989CA1262279A1 Method for processing bi-level image data
10/05/1989WO1989009526A1 Document recognition
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