Patents
Patents for H04N 1 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof (142,802)
03/1987
03/25/1987EP0215471A2 Thermal recording apparatus
03/25/1987EP0215363A2 Scanning arrangement for half-tone transmission originals
03/25/1987EP0215229A2 Method for compressing bi-level data
03/24/1987US4653112 Image data management system
03/24/1987US4653111 Image data monitor apparatus
03/24/1987US4653013 Altering spatial characteristics of a digital image
03/24/1987US4652999 Radiation image read-out and gradation processing method and apparatus with means to select between different gains for gradation processing
03/24/1987US4652939 Disk container supporting a deteachable memory
03/24/1987US4652937 Facsimile device
03/24/1987US4652936 Scanning method and system being capable of registering plural reproduction images
03/24/1987US4652935 Graded facsimile image signal coding system
03/24/1987US4652934 Facsimile transceiver equipped with broadcasting feature
03/24/1987US4652933 Image information processing system
03/24/1987US4652929 Method of and apparatus for making video images
03/24/1987US4652914 Method of recording register marks
03/24/1987US4652913 Method and apparatus for reading color images using a plurality of color light sources in which one of the light sources is turned on continuously
03/24/1987US4652892 Gradation control device for thermal ink-transfer type printing apparatus
03/24/1987US4652767 Reading apparatus with noise reduction
03/24/1987US4652743 Optical image-reading apparatus
03/24/1987US4652735 Image reader for X-ray film or the like having a detection system with an expanded dynamic range
03/24/1987CA1219668A1 Document scanners
03/18/1987EP0214863A2 Light beam scanning apparatus
03/18/1987EP0214504A2 Device for punctual illumnation, particularly at the linear scanning of image areas
03/18/1987EP0214204A1 Process and device to preserve secrecy in data processing
03/18/1987CN86106361A Scanning apparatus for continuous adjusting transparent original
03/18/1987CN86106256A Image signal coding device
03/17/1987US4651293 Image processing system comprising dither screen size selection based on image periodicity
03/17/1987US4651287 Digital image processing algorithm for output devices with discrete halftone gray scale capability
03/17/1987US4651229 Arrangement for guiding and shifting a carriage of an office machine
03/17/1987US4651228 Method and arrangement for the representation of a halftone image by use of a detection-adapted grid
03/17/1987US4651227 Video signal recording apparatus with A/D conversion
03/17/1987US4651226 Image scanning signal generating apparatus with pre-scan for exposure control
03/17/1987US4651225 Picture image scanning and reproducing method and system therefor
03/17/1987US4651223 Recorder
03/17/1987US4651222 Picture image forming apparatus
03/17/1987US4651221 Facsimile transmission system
03/17/1987US4651199 Method for detecting blank frames in a photographic color printer
03/17/1987US4651198 Color image reproducing apparatus with sheet feeding device for recirculating a sheet on which dots of different colors are sequentially recorded
03/17/1987US4651170 Laser printer having means for changing the output-image size
03/17/1987US4651169 Laser printer for printing a plurality of output-images sizes
03/17/1987US4651108 Demodulation circuit having means for detecting phase difference
03/17/1987US4650985 Photoconductors
03/17/1987US4650352 Apparatus for performing raised dot formations
03/17/1987CA1293043E Railroad communication
03/17/1987CA1219326A1 Railroad communication system
03/17/1987CA1219306A1 Laser diode control circuitry
03/12/1987WO1987001473A1 Film video player/printer with cropping control
03/12/1987WO1987001472A1 Film video player/printer
03/11/1987EP0214104A2 Method for the printed reproduction of continuous-tone polychrome originals
03/11/1987EP0214033A1 Process for making a light image sensor, and linear image sensor made by this process
03/11/1987EP0213949A2 Image processing apparatus
03/11/1987EP0213891A2 Image processing apparatus
03/11/1987EP0213861A2 Image transfer method and apparatus
03/11/1987EP0213740A2 Connector for television distribution equipment
03/11/1987EP0213683A2 Method and device for producing intermediate picture signals from reference picture signals at a reduced frame rate
03/11/1987EP0213550A1 Device for exposing a record carrier with alpha-numeric characters or surfaces presenting a foreground pattern being set off against a background pattern
03/11/1987EP0213539A2 Picture reading apparatus
03/11/1987EP0213511A2 Light beam scanning system
03/11/1987EP0213428A1 Arrangement to produce computer-radiographic X-ray images
03/11/1987EP0213188A1 Apparatus for scanning and sampling real images
03/10/1987US4649500 Collection method of data on feed amount of printing ink and system therefor
03/10/1987US4649437 Picture image forming apparatus
03/10/1987US4649436 Image processing apparatus in film image phototelegraphy
03/10/1987US4649435 Method and apparatus for coding pictorial information for efficient storage, transmission and reproduction
03/10/1987US4649433 Arrangement for making a photographic slide or cine-film recording of a television picture
03/10/1987US4649423 Method and circuit arrangement for selective correction of hues and colors
03/10/1987US4649404 Recording apparatus
03/10/1987US4649401 Thermal recording apparatus
03/10/1987US4648685 Method of driving galvanometer mirror
03/10/1987CA1219085A1 Radiation image signal compression method and apparatus
03/10/1987CA1219080A1 Method and an apparatus for coding/decoding telewriting signals
03/10/1987CA1219075A1 Radiation image read-out apparatus
03/10/1987CA1219058A1 Opto-electronic scanning apparatus
03/10/1987CA1219057A1 Image data compression system
03/10/1987CA1218952A1 Printer having automatic paper positioning means
03/04/1987EP0213017A1 Device for reproducing and/or reading images in colour using a linear cathode ray tube with a screen clad with optical fibres
03/04/1987EP0212990A2 Image processing apparatus
03/04/1987EP0212905A2 Decoding apparatus for image code
03/04/1987EP0212487A2 Method and device for controlling vertical scan speed
03/04/1987EP0212199A1 Facsimile receiver with a scanning device for generating digital picture signals
03/04/1987EP0212131A2 Digital image conversion apparatus
03/03/1987US4648119 Method and apparatus for forming 3×3 pixel arrays and for performing programmable pattern contingent modifications of those arrays
03/03/1987US4647987 Modified synchronization in apparatus for recording and reproducing single field non-interlaced images
03/03/1987US4647982 Image display apparatus capable of starting display of a new image in response to designation thereof prior to completion of display of a previously designated image
03/03/1987US4647981 Automatic white level control for a RIS
03/03/1987US4647963 Color enhancement
03/03/1987US4647962 Method and apparatus for generating a half-tone image representation with individual groups of one or more scanning beams controlled in response to half-tone dot information and either low-or high-resolution image data
03/03/1987US4647961 Apparatus for reading the image information of a colored original
03/03/1987US4647950 Recording apparatus
03/03/1987US4647946 Laser beam recorder having synchronized scanner and drum operations
03/03/1987US4647908 Codeword decoding
03/03/1987US4647768 Image sensing head for document scanning
03/03/1987US4647192 Carrier device for disc film
03/03/1987US4647145 Method of and apparatus for obtaining image data
03/03/1987CA1218733A1 Screen gravure engraving system for electromechanical engravers
02/1987
02/25/1987EP0211611A2 Image signal coding apparatus
02/25/1987EP0211509A2 Method for printing a colour image
02/25/1987EP0211269A2 Dot printing apparatus and method
02/25/1987EP0033731B1 Engraving apparatus
02/24/1987US4646356 Method for converting a bit map of an image to a run length or run end representation