Patents
Patents for H04N 1 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof (142,802)
02/1987
02/24/1987US4646355 Method and apparatus for input picture enhancement by removal of undersired dots and voids
02/24/1987US4646252 Color film inspection method
02/24/1987US4646249 Image processing system
02/24/1987US4646172 Video system and method
02/24/1987US4646162 Driving device for facsimile apparatus
02/24/1987US4646160 Facsimile apparatus
02/24/1987US4646155 Image reader for image processing apparatus
02/24/1987US4646144 Method and apparatus for reproducing color separation picture image
02/24/1987US4646134 Apparatus for encoding image signal
02/24/1987US4645955 Signal conversion circuit for photosensor array
02/24/1987US4645336 Method and apparatus for determining the trimmed images of originals for reproduction on printing technology
02/24/1987US4645333 Image forming apparatus
02/19/1987DE3620147A1 Conversion unit for remote-adjustment of ink zones
02/17/1987US4644411 Image sensor
02/17/1987US4644410 Dynamic threshold binary generator
02/17/1987US4644409 Document resolution-adaption method and apparatus
02/17/1987US4644406 Large scale contact type image reading unit using two-dimensional sensor array
02/17/1987US4644392 Method for simultaneously recording a halftone picture portion, a line drawing portion with a desired screen tint, and a boundary portion between them on a plurality of color separations
02/17/1987US4644391 Image information input apparatus for inputting supplemental information to a copying machine
02/17/1987US4644319 Addresser designation character pattern generation apparatus for facsimile transmission
02/17/1987US4644287 Low noise synchronous detection for a charge transfer device
02/17/1987US4644178 Signal processing for optical image sensor
02/17/1987US4644160 System for holding plural light beams in predetermined relative positions
02/17/1987US4644159 Image reading device
02/17/1987US4644155 Reading optical system
02/17/1987US4643563 Color image data processing method
02/12/1987WO1987001000A1 Color imaging apparatus using electro-optic modulators
02/12/1987WO1987000999A2 Document scanning system with multi-camera overlap elimination arrangement
02/12/1987WO1987000998A2 Document scanning system with multi camera mounting and alignment arrangement
02/12/1987WO1987000940A1 Method of printing leaflets and catalogs
02/10/1987US4642703 Information recording-reproducing method and apparatus
02/10/1987US4642701 Device of switching a scanning beam diameter
02/10/1987US4642700 Method of and apparatus for producing video signal associated with photographic image
02/10/1987US4642699 Method of scanning and recording images
02/10/1987US4642698 Method and system for condensing binary image data
02/10/1987US4642697 Facsimile relay device
02/10/1987US4642684 Method and apparatus for detecting and printing color photographic images of scenes exposed with narrow band illuminant
02/10/1987US4642683 Digital image processing method for images with bimodal tone value distribution
02/10/1987US4642681 Color image processing apparatus for generating color output signals and a black output signal in a mutually exclusive manner
02/10/1987US4642680 Method and system for processing image data stored in RGB form
02/10/1987US4642679 Color image reading apparatus
02/10/1987US4642655 Color-indexed dye frames in thermal printers
02/10/1987US4642653 Multi-tone recording method for ink jet printer
02/10/1987US4642622 Video signal generating circuit
02/10/1987US4642472 Optical image reader for reading an image on a given manuscript
02/10/1987US4642462 Method of correcting radiation image read-out error
02/10/1987US4641950 Exposure system
02/05/1987DE3624705A1 Data transmission device
02/04/1987EP0210641A2 Facsimile apparatus
02/04/1987EP0210627A2 Film writing system with closed loop control for electronic images
02/04/1987EP0210618A2 Frequency converter for use in a laser printer
02/04/1987EP0210505A1 Reading device for stimulable phosphor panel
02/03/1987US4641357 Method for reading a document image
02/03/1987US4641267 Gradation correction curve creating method and apparatus
02/03/1987US4641242 Radiation image recording and reproducing system
02/03/1987US4641204 Recording and reproducing system for recording both analogue and digital information on and from a disc
02/03/1987US4641200 Image reproducing apparatus with variable AC bias
02/03/1987US4641199 Image reading apparatus
02/03/1987US4641198 Method of and apparatus for recording video signal associated with photographic image
02/03/1987US4641197 Image processing method or apparatus
02/03/1987US4641185 Image sensing and processing apparatus and method
02/03/1987US4641184 Electronic image scanner and copier system with color matrix image enhancement
02/03/1987US4641156 Recording apparatus with double frequency driven liquid crystal shutter
02/03/1987US4641133 Communication apparatus which alerts operator to preset automatic operation
02/03/1987US4640573 Lens-on-disc type optical scanning apparatus
02/03/1987CA1217384A1 Circuit providing gamma, color and temperature compensation for thermal printer
01/1987
01/29/1987WO1987000714A1 Process for compressing and expanding structurally associated multiple-data sequences, and arrangements for implementing the process
01/29/1987DE3625281A1 Image processor with colour discrimination - has photoelectric members receiving colour-differentiated image from original document, and standardising members for image signal
01/29/1987DE3526133A1 Method for producing colour pictures
01/28/1987EP0209929A1 Optical scanning device
01/28/1987EP0209834A2 Text and graphics image setting apparatus
01/28/1987EP0209801A1 Hand-operated apparatus for raster scanning line by line
01/27/1987US4639867 Digital fluoroscopy apparatus
01/27/1987US4639791 Image overlay apparatus with electronic image storage
01/27/1987US4639790 Image input apparatus
01/27/1987US4639789 Raster scanner variable-frequency clock circuit
01/27/1987US4639787 Image-scanning apparatus
01/27/1987US4639781 Dynamic gain adjuster for an image scanner
01/27/1987US4639778 Embedding quantization system for vector signals
01/27/1987US4639771 Image processing system
01/27/1987US4639770 Method and circuit arrangement for simulating a multi-colored reproduction on a color monitor
01/27/1987US4639769 Modifying color digital images
01/27/1987US4639747 Recording head drive control apparatus
01/27/1987US4639746 Image recording apparatus
01/27/1987US4639741 Block-divided driving of a thermal printhead
01/27/1987US4639715 Flash analog to digital converter
01/27/1987US4639608 Image read-out apparatus with light source driving means
01/27/1987US4639553 Call signal detecting device
01/27/1987US4639086 Method of recording a halftone image
01/27/1987US4639073 Electro-optic pulse imaging raster output scanner
01/27/1987US4639072 Optical beam scanning apparatus including a cylindrical lens having its opposite ends closer to the scanned plane than its medial portion
01/27/1987CA1217283A1 Radiation image read-out method and apparatus
01/27/1987CA1217266A1 Universal thresholder/discriminator
01/21/1987EP0209422A1 Automatic digitalisation methods and apparatuses for scenes comprising discrete significant elements
01/21/1987EP0209266A1 Improvements relating to colour displays
01/21/1987EP0209186A2 Image recording and readout device based on light-stimulable phosphors
01/21/1987EP0209119A2 Image read-out apparatus
01/21/1987EP0209034A1 Method and apparatus for manufacturing positive copies of positive originals
01/21/1987EP0208919A2 Multicolor sublimation type thermal recording method and device therefor
01/21/1987EP0208852A2 Communication terminal device