Patents
Patents for H04N 1 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof (142,802)
06/1994
06/14/1994US5321741 Facsimile apparatus for determining communication failure
06/14/1994US5321532 Image processing apparatus
06/14/1994US5321531 Image processing apparatus capable of document discrimination
06/14/1994US5321530 Image formation system employing optical memory
06/14/1994US5321529 Color image processing with smoothing of differential components and addition of the result to a specific color component
06/14/1994US5321528 Image pick-up device correcting offset errors from a plurality of output amplifiers
06/14/1994US5321526 White level detection circuit for an optical image reader
06/14/1994US5321525 Clustered halftoning with dot-to-dot error diffusion
06/14/1994US5321524 Gray level compensator for picture recorder
06/14/1994US5321523 Image processing apparatus
06/14/1994US5321522 ADCT compression with minimum compression ratio
06/14/1994US5321521 Image data compression transmission method utilizing a synchronization code
06/14/1994US5321520 Automated high definition/resolution image storage, retrieval and transmission system
06/14/1994US5321517 Image transmission apparatus indicating a color type of the color signal transmitted
06/14/1994US5321486 Image forming apparatus with control based on detected and designated recording medium size
06/14/1994US5321485 Printing apparatus having manual sheet feeding and document reading capabilities
06/14/1994US5321478 Image forming apparatus which can discriminate frequency of image forming operations
06/14/1994US5321470 Apparatus with anti-forgery provision
06/14/1994US5321468 Image forming apparatus having inference means and method of manufacturing the same
06/14/1994US5321438 Method and apparatus for color printing
06/14/1994US5321437 Printing device
06/14/1994US5321435 Multi-diameter record dot light scanning apparatus
06/14/1994US5321433 Electrophotographic printing apparatus with enhanced printed image capability
06/14/1994US5321432 Image forming apparatus with resolution control
06/14/1994US5321431 Method for printing with scanned liquid crystal cells
06/14/1994US5321426 Scan laser thermal printer
06/14/1994US5321423 Document information system and document data transfer and display method
06/14/1994US5321397 Data encoder for producing and storing info runlength value, bit length values and encoded words from input data values
06/14/1994US5321273 Document size sensing having a spectroscope
06/14/1994US5321263 Recording target
06/14/1994US5321250 Solid state image pickup device with optical filter free from age deterioration
06/14/1994US5321237 Device and method for authenticating electronic document transmissions
06/09/1994WO1994013100A2 A method and device for producing panoramic images, and a method and device for consulting panoramic images
06/09/1994WO1994013099A1 Apparatus and method for processing of image data
06/09/1994WO1994013098A1 Resolution enhancement system for binary images
06/09/1994DE4341871A1 Pseudo-colour picture read-out system, e.g. for colour photograph - reads multi-valve data corresp. to primary colours, digitises data and uses three-dimensional colour compensation tables to read out colour image
06/09/1994DE4340602A1 Electrophotographic copier repair, maintenance and service information collector - stores data from image generator in first and second memories, and has controller for reading second memory when connected with host computer via telephone network
06/09/1994DE4340190A1 Bildwandlungseinrichtung Image conversion device
06/09/1994DE4240803A1 Detecting position of moving print- or read-head esp. in office machine - providing head with light source, which directs focussed light into waveguide for total internal reflection towards photodetectors located at both ends of waveguide, and sensing changes in detectors signals
06/08/1994EP0600853A2 Apparatus for optically writing information
06/08/1994EP0600735A2 Image output apparatus, image output method, ink jet print method and printed product obtained with said method
06/08/1994EP0600707A1 Ink jet recording apparatus and ink jet recording method
06/08/1994EP0600682A1 Image communication technique
06/08/1994EP0600674A2 Compensation of magnification mismatch in single pass color printers
06/08/1994EP0600673A2 Method and apparatus for imaging radiation beams of different wavelengths
06/08/1994EP0600657A2 Method and apparatus for improving full color images using process black and printer black
06/08/1994EP0600646A2 Secure document and method and apparatus for producing and authenticating same
06/08/1994EP0600642A2 Method and apparatus for reducing correlated errors in subband coding systems with quantizers
06/08/1994EP0600613A2 Improvements in image processing
06/08/1994EP0600524A1 Image-forming machine
06/08/1994EP0600487A2 A direct-contact type image sensor device and an image sensor unit
06/08/1994EP0600472A2 Method and apparatus for automatically selecting process information for execution during printing of a page
06/08/1994EP0600466A2 Communication apparatus which can connect a plurality of communication lines
06/08/1994EP0600444A1 Diaphragm for objective
06/08/1994EP0446209B1 Adaptive transform coding system
06/08/1994EP0398940B1 Mechanism for handling slides and film strips
06/08/1994EP0396708B1 Automatic reference control for image scanners
06/08/1994EP0353289B1 System and method for hierarchal image encoding and decoding
06/08/1994CN1087581A Ink jet recording system using decomposed images
06/08/1994CN1024964C System for producing dithered images on asymmetric grids
06/07/1994US5319793 Method and apparatus for improved compression and recording of color video data in a personal computer using a plurality of lookup tables
06/07/1994US5319748 Method and apparatus to manage picture and pageset for document processing
06/07/1994US5319742 Image enhancement with mask having fuzzy edges
06/07/1994US5319724 Apparatus and method for compressing still images
06/07/1994US5319719 Processing apparatus for radiographic image signals
06/07/1994US5319537 Raser output scanner color printer with improved start of scan detection and process registration
06/07/1994US5319474 Overlapping device of a color video printer
06/07/1994US5319473 Methods and apparatus for performing real time color gamut compressions
06/07/1994US5319472 Multispectral color image pickup system
06/07/1994US5319471 Image transmitting apparatus having improved coding of multi-valued image data
06/07/1994US5319469 Method and apparatus for coding digital image data
06/07/1994US5319464 Scheduling color variations for discrete job elements
06/07/1994US5319463 Arrangement and method of preprocessing binary picture data prior to run-length encoding
06/07/1994US5319457 Variable length image coding system
06/07/1994US5319447 Video control circuit for multimedia applications with video signal synchronizer memory
06/07/1994US5319419 Scanning system driving device
06/07/1994US5319393 Multiple-spot beam control for a raster output scanner an electrophotographic printer
06/07/1994US5319391 Thermal printing apparatus
06/07/1994US5318211 Apparatus for media guidance in an imaging device
06/07/1994CA2049486C Store-and-forward switching system
06/04/1994CA2106046A1 Image communication technique
06/01/1994EP0599579A1 An apparatus for video signal processing
06/01/1994EP0599523A2 Service call initiation and feedback interface
06/01/1994EP0599495A1 Method and apparatus for adjusting correlated color temperature
06/01/1994EP0599494A2 Correlated color temperature detector
06/01/1994EP0599482A2 A method of evaluating print quality on a substrate
06/01/1994EP0599481A1 A stimulable phosphor plate developer
06/01/1994EP0599466A1 Apparatus and methods for managing picture data
06/01/1994EP0599313A2 Electronic displaying device
06/01/1994EP0599304A2 Optical scanning apparatus for scanning laser beam on imaging surface and recording image data on imaging surface in units of dots
06/01/1994EP0599296A1 Color image forming apparatus
06/01/1994EP0599294A2 Image forming apparatus
06/01/1994EP0599261A1 Multi-user digital laser imaging system
06/01/1994EP0599258A2 Digital video signal code size control apparatus
06/01/1994EP0599243A2 Image processing device
06/01/1994EP0599218A1 Method and copying machine for preventing illegal copying
06/01/1994EP0599202A1 Method of and circuit for driving cathodoluminescence type lighting device
06/01/1994EP0599129A2 Storage phosphor size compensation system
06/01/1994EP0599128A2 Storage phosphor reader diagnostics
06/01/1994EP0599127A2 Parasitic resistance compensation for a thermal print head