Patents
Patents for H04N 1 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof (142,802)
05/1990
05/01/1990US4922102 Radiation-image reading apparatus
05/01/1990US4922101 Radiation image-reading method
05/01/1990US4922087 Image reader capable of calculating the real focal length of a projecting lens
05/01/1990US4921320 Optical scanner
05/01/1990CA1268547A1 Thresholding algorithm selection apparatus
05/01/1990CA1268360A1 Reading device for stimulable phosphor panel
04/1990
04/25/1990EP0365312A2 Semiconductor device and signal processing device having said device provided therein
04/25/1990EP0365310A2 Colour detection and/or recognition apparatus
04/25/1990EP0365254A2 Memory device for a page printer
04/25/1990EP0365182A2 Flat stationary field light beam scanning device
04/25/1990EP0365037A2 Method of and apparatus for processing image signal
04/25/1990EP0364867A2 Method of selecting the operation mode of a multiservice terminal apparatus
04/25/1990EP0364827A2 Image processing apparatus
04/25/1990EP0364478A1 Image transmission system with preview mode.
04/25/1990CN1041563A Method and apparatus for monitoring printing quality for arrangement of multicolour wrok of offset press
04/24/1990US4920571 Image processing system with capability of enlarging and reducing operations
04/24/1990US4920560 Method of automatic dialing and automatic dialing device for facsimile apparatuses
04/24/1990US4920502 Image processing apparatus which selectably outputs image information
04/24/1990US4920501 Digital halftoning with minimum visual modulation patterns
04/24/1990US4920431 Image reading apparatus with jam-prevention feature
04/24/1990US4920430 Method of and apparatus for jitter correction of a polygon mirror in an image recording apparatus
04/24/1990US4920429 Exposure compensation for a line scan camera
04/24/1990US4920428 Offset, gain and bad pixel correction in electronic scanning arrays
04/24/1990US4920427 Facsimile apparatus
04/24/1990US4920423 Video printer
04/24/1990US4920421 Simultaneous read/write copier
04/24/1990US4920414 Digital video signal encoding arrangement, and corresponding decoding arrangement
04/24/1990US4920411 Method for processing image signals so as to color correct them
04/24/1990US4920394 Solid solutions of cadmium sulfide and cadmium-selenium component with copper added; high speed; copiers, fax machines
04/24/1990US4920364 Liquid crystal dynamic attenuator for laser printers
04/24/1990US4919499 Optical printer of scaning type
04/24/1990US4919045 Offset printer having a press drum larger than its rubber drum
04/19/1990WO1990004302A1 Photofinishing process with film-to-video player using dedicated magnetic tracks on film
04/19/1990WO1990004301A1 Film-to-video player using dedicated magnetic tracks on film
04/19/1990WO1990004299A1 A multi-purpose communications device
04/19/1990WO1990004263A1 Image sensor and method of producing the same
04/19/1990WO1990004234A1 Digital half-toning process with error diffusion
04/19/1990WO1990004194A1 Fiber optic array
04/18/1990EP0364264A2 Communication processing apparatus
04/18/1990EP0363988A2 Color scanner and automatic setting method
04/18/1990EP0363983A2 Image reading apparatus
04/18/1990EP0363969A2 Color image reading apparatus
04/18/1990EP0363943A2 Method for forming halftone data
04/18/1990EP0363522A1 X-ray diagnostic arrangement with a storage screen
04/18/1990EP0215847B1 Apparatus and method for forming digital images
04/18/1990CN1041499A Third-class facsimile repeater
04/18/1990CN1007691B Facsimile transmission system
04/17/1990US4918723 Keyboard to facsimile machine transmission system
04/17/1990US4918722 Control of electronic information delivery
04/17/1990US4918718 Quadrature amplitude modulation with line synchronization pulse for video telephone
04/17/1990US4918622 Electronic graphic arts screener
04/17/1990US4918588 Office automation system with integrated image management
04/17/1990US4918543 Apparatus for thresholding an image signal
04/17/1990US4918542 Image processing apparatus capable of smooth multi-area variable magnification processing
04/17/1990US4918541 Image processing method and apparatus
04/17/1990US4918540 System for encoding or decoding analog video signals
04/17/1990US4918538 Electronic photography system with still and motion picture modes
04/17/1990US4918536 Facsimile recording system using photosensitive microcapsule recording medium
04/17/1990US4918523 Digital video formatting and transmission system and method
04/17/1990US4918466 Light beam image recording apparatus having commonly driven member
04/17/1990US4918465 Multi-color beam scanner with simultaneous scanning along a plurality of scan lines
04/17/1990US4918462 Method and apparatus for driving a solid scan type recording head
04/17/1990US4918304 Flying spot image scanner that utilizes a CRT coupled to a noncoherent fiber optic bundle
04/17/1990US4917454 Image scanner employing light pipes and an imaging sensor array
04/12/1990DE3933488A1 Transmission system for video telephone
04/12/1990DE3933150A1 Video printer with built-in monitor - has inputs for character generator and main video signal, superimposed by combination circuit
04/12/1990DE3834312A1 Device for generating and recording an image of an object and, in particular, of the fundus of the eye
04/11/1990EP0363146A2 Color image processing apparatus
04/11/1990EP0363132A2 LED illuminator bar
04/11/1990EP0362980A2 Low cost color scanner
04/11/1990EP0362737A1 Apparatus and method for converting pictures in video signals
04/11/1990EP0362595A2 Image binarization apparatus
04/11/1990EP0362590A1 Facsmile system
04/11/1990EP0362434A1 Image processing computer system
04/11/1990EP0362352A1 Document scanner.
04/11/1990EP0362204A1 Covering and cleaning device for the optical character generator in an electrophotographic printing device
04/11/1990EP0362196A1 Interface device
04/11/1990CN1007574B Image reader
04/10/1990US4916747 Image processing system
04/10/1990US4916744 Image signal processing method
04/10/1990US4916739 Adhesive photocopyable transparency for use in a secure facsimile transmission system
04/10/1990US4916732 Communication system having telephonic function
04/10/1990US4916638 Media advance system for swath printers
04/10/1990US4916607 Computer for executing a process control program and a communication control program in parallel
04/10/1990US4916561 Hard copy printer having magnetic tape image storage
04/10/1990US4916552 Optical reader head with video compensation method and circuit which integrates four adjacent pixels into a composite pixel
04/10/1990US4916551 Multi-channel image processing with cross channel context
04/10/1990US4916550 Foldable portable optical instrument
04/10/1990US4916549 Image sensing apparatus with shading compensation
04/10/1990US4916547 Color image forming apparatus
04/10/1990US4916545 Electronic graphic arts screener that suppresses Moire patterns using pseudo-random font selection
04/10/1990US4916537 Image information signal transmitting system
04/10/1990US4916531 Color video processing circuitry
04/10/1990US4916530 High resolution halftone dot generator system including LED array
04/10/1990US4916486 Copying and printing apparatus
04/10/1990US4916483 Small angle document rotator in an imaging device platen cover
04/10/1990US4916480 Image forming apparatus with use of a laser beam
04/10/1990US4916470 Image bar with electrochromic switching system
04/10/1990US4916367 Method of and apparatus for preventing scanning line deviation in a process scanner of a separated drum type
04/10/1990US4916316 Radiation image recording and reproducing method