Patents
Patents for H04N 1 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof (142,802)
01/1995
01/03/1995US5379059 Adjustment mechanism for equipment converting digital data into a light image
01/03/1995US5379058 Recording apparatus using a thermosensitive recording medium
01/03/1995US5378565 Frost image recording medium and method of and apparatus for forming and reading frost image
01/03/1995US5378563 Method for correcting image density in thermo-optic recording
01/03/1995CA2021851C Combined asynchronous-synchronous document scanner
01/03/1995CA2012574C Facsimile apparatus
12/1994
12/31/1994CA2127137A1 Internal drum plotter
12/28/1994EP0631431A1 An image processing apparatus for and a method of preparing data representing a colour image
12/28/1994EP0631430A2 Color image processing apparatus capable of suppressing moire
12/28/1994EP0631429A1 Method and apparatus for processing image data
12/28/1994EP0631428A2 Pixel error diffusion method
12/28/1994EP0631427A2 Image processing apparatus
12/28/1994EP0631426A1 Facsimile device
12/28/1994EP0631425A2 Sheet transport apparatus
12/28/1994EP0631392A1 Device for sampling analog signals with selectable sampling frequency
12/28/1994EP0631249A1 Image data processing apparatus
12/28/1994EP0631202A2 Customer schedulable machine quality adjust
12/28/1994EP0630752A2 Ink jet recording method and apparatus
12/28/1994EP0630547A1 Picture data encoding method
12/28/1994EP0630544A1 Image-adaptive process for regulating the length of a quantification interval during image data reduction.
12/28/1994EP0630506A1 Image compression coder having improved bit rate control and block allocation
12/28/1994EP0630490A1 Virtual drum imagesetter
12/27/1994US5377312 Image processing apparatus capable of expanding compressed data
12/27/1994US5377282 Optical inspection system utilizing dynamic analog-to-digital thresholding
12/27/1994US5377260 Telephone circuit to control off-hook status during receipt of caller-ID signal
12/27/1994US5377257 Facsimile receiving method and facsimile apparatus carrying out the method
12/27/1994US5377233 Seam-less data recovery
12/27/1994US5377159 Improved method and circuit for historical control of thermal printing
12/27/1994US5377041 Method and apparatus employing mean preserving spatial modulation for transforming a digital color image signal
12/27/1994US5377025 Optimal color quantization for addressing multi-dimensional color calibration look-up-table
12/27/1994US5377024 Apparatus for forming color images using a hue-plus-gray color model
12/27/1994US5377023 Pictorial image processing system
12/27/1994US5377022 Method and apparatus for page imaging and document movement device
12/27/1994US5377021 Communication apparatus
12/27/1994US5377020 Method and apparatus for scanning an original and updating threshold values for use in the processing of data
12/27/1994US5377019 Document reading apparatus having a function of determining effective document region based on a detected data
12/27/1994US5377018 Video compression and decompression using block selection and subdivision
12/27/1994US5377017 Automatic on-line facsimile confirmation
12/27/1994US5377016 Multi-function image processing system
12/27/1994US5377015 Image processing device for converting a scanned image into a monochrome image
12/27/1994US5377013 Method of simulating color images
12/27/1994US5376994 Compact BI-color electrophotographic image forming apparatus
12/27/1994US5376978 Film-to-tape transfer apparatus
12/27/1994US5376966 Image reading apparatus having a function for correcting dark signals generated in a photoelectric conversion element
12/27/1994US5376965 Electronic imaging system capable of recording/reproducing images with any one of several possible recording media
12/27/1994US5376956 Image forming apparatus
12/27/1994US5376782 Image pickup device providing decreased image lag
12/22/1994WO1994030003A1 Color matching system
12/22/1994WO1994030002A1 Digital image compression using tile subdivision
12/22/1994WO1994030001A1 Method and apparatus for sending facsimiles of double sided pages
12/22/1994WO1994029811A1 Electronic program guide and text channel data controller
12/22/1994WO1994029771A1 Attachment for photocopying three-dimensional objects
12/22/1994DE4421261A1 Bildverarbeitungseinrichtung Image processing device
12/22/1994DE4418903A1 Device for lengthening sensor lines in an opto-electronic camera
12/22/1994DE4319961A1 Telecommunications device
12/22/1994CA2164608A1 Electronic program guide and text channel data controller
12/22/1994CA2162019A1 Digital image compression using tile subdivision
12/22/1994CA2144872A1 Color matching system
12/21/1994EP0630158A1 Coding of analog image signals
12/21/1994EP0630156A1 Interactive television system
12/21/1994EP0630152A2 Photo-electric converter
12/21/1994EP0630150A1 Neural network for color translations
12/21/1994EP0630149A1 Method and apparatus for image processing
12/21/1994EP0630148A1 Recording module
12/21/1994EP0630147A1 An image forming apparatus capable of editing an original image
12/21/1994EP0630146A1 Interactive user support and method using sensors and machine knowledge
12/21/1994EP0630145A1 Digital copier systems
12/21/1994EP0630144A2 Device for providing services in a communication network
12/21/1994EP0630141A2 Computer-based multifunction personal communications system
12/21/1994EP0630133A2 Modem applications of simultaneous analog and digital communication
12/21/1994EP0629973A2 Output apparatus and method
12/21/1994EP0629927A2 Electrostatographic single-pass multiple station printer with register control
12/21/1994EP0629926A2 Image reading apparatus and image processor incorporating the same
12/21/1994EP0629921A1 Electrostatographic printing including the use of colourless toner
12/21/1994EP0629905A2 Image printer
12/21/1994EP0629507A1 Led recording head
12/21/1994EP0629329A1 Telephone network application platform for supporting facsimile applications
12/21/1994CN1096594A 影象印相机 Image printer
12/20/1994US5375205 Method and apparatus for controlling the buffer scan in a printer controller
12/20/1994US5375202 Dispatching and scheduling memory operations in an electronic printing system
12/20/1994US5375197 System and method for automatically distinguishing between graphic information and text information of image data
12/20/1994US5375191 Method for approximating full resolution color printing
12/20/1994US5375160 Interface apparatus for effecting captioning and communications between a telephone line and a television
12/20/1994US5375002 Color error diffusion
12/20/1994US5375001 Method of and apparatus for producing area signals in digital image processing system
12/20/1994US5375000 Method and apparatus for generating representation of an image from a transparency
12/20/1994US5374999 Scan control system
12/20/1994US5374998 Data link control method for controlling receiver and transmitter
12/20/1994US5374997 High addressability error diffusion with minimum mark size
12/20/1994US5374993 Image skew adjustment for a raster output scanning (ROS) system
12/20/1994US5374976 Support provided with a machine detectable copying security element
12/20/1994US5374958 Image compression based on pattern fineness and edge presence
12/20/1994US5374957 Decompression method and apparatus for split level image buffer
12/20/1994US5374950 Image forming apparatus to provide multicolor images
12/20/1994US5374947 Laser beam printer capable of changing scanning density and paper transport speed
12/20/1994US5374945 Gray level printing using a thermal printhead
12/20/1994US5374929 DA converter which combines output of a plurality of low pass filters selectively enabled and disabled by respective electronic switches
12/20/1994US5374047 Sheet feeder
12/20/1994CA1333636C Apparatus and method for transforming a digitized signal of an image
12/19/1994CA2303499A1 A method of forming a drum assembly