Patents
Patents for H04N 1 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof (142,802)
03/1993
03/30/1993CA1315429C Device to provide an individual telephone number for a facsimile terminal on a shared telephone line based on coded ringing
03/30/1993CA1315392C Side-match and overlap-match vector quantizers for images
03/30/1993CA1315387C Picture image data processor
03/25/1993DE4133718C1 Analogue X=ray picture digitising appts. - allows digital image processing of conventional x=ray pictures so that they can be stored, and sorted in memory, displayed on screen, and also connected to other modules.
03/25/1993DE4131421A1 Subscriber appts. controller switching between types of communication - deactivates calling signal generator when loop is closed and loop current monitored for presence of DC
03/25/1993DE4131420A1 Subscriber appts. controller switching between types of communication - prevents propagation of received signal to variety of equipment, pending recognition of type of incoming call
03/25/1993DE4131419A1 Subscriber appts. controller switching between types of communication - delays reproduction of message, for e.g. telephone caller, while incoming signal is monitored for facsimile content
03/25/1993DE4131303A1 Optoelectronic image scanning and image prodn. method for offset printing machine - being for digital prodn. and-or correction of printing form also colour application and-or control or regulation of printing machine and image quality control
03/24/1993EP0533593A2 A technique for generating additional colors in a halftone color image through use of overlaid primary colored halftone dots of varying size
03/24/1993EP0533592A2 Apparatus and method for thermal printing of finely detailed images of photographic quality
03/24/1993EP0533458A1 Image processing apparatus having fuzzy set calculating means
03/24/1993EP0533411A2 Color printing yielding a dense black image
03/24/1993EP0533377A2 Image forming method
03/24/1993EP0533348A2 Apparatus and method for providing and displaying a partially transparent image
03/24/1993EP0533346A1 A pulsed imaging, pulse width modulation raster output scanner for tri-level exposure
03/24/1993EP0533305A2 Method and apparatus for detecting defective printed matter in printing press
03/24/1993EP0533299A2 Digital video processing and reproducing apparatus using pulse-width-modulation synchronized with the pixel clock for producing a binary signal from half-tone image data
03/24/1993EP0533298A2 Digital image generator
03/24/1993EP0533177A2 Method of noise detection and noise erasing
03/24/1993EP0533112A1 Improved optical fiber mount and support
03/24/1993EP0533111A2 Photoprint retaining platen for digitizing image scanner
03/24/1993EP0533109A2 Dual imaging station photoprint scanner
03/24/1993EP0533108A1 Print scanner with soft key variable magnification
03/24/1993EP0533107A2 Megapixel video previewer framestore and display
03/24/1993EP0533100A2 Gradation correction method and apparatus
03/24/1993EP0533066A2 Image reading apparatus with reflection type blazed diffraction grating for color separation
03/24/1993EP0532998A1 Picture orientation markable photo compact disk and method and apparatus for using same
03/24/1993EP0532837A1 Integrated multifunctional document processing system
03/24/1993EP0532796A1 Multifunctional document processing system
03/24/1993EP0532749A1 Method for generating halftone image data with randomly selected threshold matrices
03/24/1993EP0532519A1 Modulated fiber optic image scanner
03/24/1993EP0309564B1 Print-to-video transfer with variable contrast control
03/24/1993CN2128812Y Television decryption device
03/23/1993US5197119 External synchronism control circuit
03/23/1993US5197117 Text information processing apparatus having printer and printing dot signal generating apparatus for the same
03/23/1993US5196957 Laser scanner with post-facet lens system
03/23/1993US5196950 Optical reader and light source used for the same
03/23/1993US5196949 Vestigial sideband scophony imaging modulator
03/23/1993US5196948 Image density reading apparatus capable of selecting a desired amplification level for the density
03/23/1993US5196947 Image communication apparatus
03/23/1993US5196945 Data compression/expansion circuit for facsimile apparatus
03/23/1993US5196944 Facsimile apparatus
03/23/1993US5196943 Facsimile information distribution apparatus
03/23/1993US5196942 System and method for determining picture element values
03/23/1993US5196934 Image scaling apparatus for a multimedia system
03/23/1993US5196927 Method for electronic color processing
03/23/1993US5196922 Digital image generation
03/23/1993US5196883 Image forming apparatus
03/23/1993US5196843 Data communication apparatus with multi-address calling
03/23/1993US5196721 Image reading device
03/23/1993US5196697 Laser beam scanning apparatus having a variable focal distance device and the variable focal distance device for use in the apparatus
03/23/1993US5196691 Photoelectric converting device having original conveyance guide and an image processing apparatus incorporating the device
03/23/1993CA1315031C Method and apparatus for accessing a facsimile store and forward network
03/23/1993CA1314982C Document image processing system
03/23/1993CA1314816C Image printing machine
03/18/1993WO1993005608A1 Digital filtering for lenticular printing
03/18/1993WO1993005593A1 Remote link adapter for use in tv broadcast data transmission system
03/18/1993WO1993005440A1 Bernoulli scan gate
03/18/1993WO1993005426A1 Beam dividing device
03/18/1993WO1993004572A2 Coding of images and originals, for example for telefax and colour television
03/18/1993DE4231202A1 Image reader for repeated scanning of original - generates set of video signal data in each scanning cycle, each set representing original image
03/17/1993EP0532449A2 Method of manipulating composite color images
03/17/1993EP0532381A1 Method and apparatus for certifying messages transmitted by a facsimile device
03/17/1993EP0532302A2 Image recording apparatus
03/17/1993EP0532248A2 Method for correcting density uneveness for a recording head and an image formation apparatus provided with such a method
03/17/1993EP0532209A2 Communication processing apparatus, communication processing system, and communication processing method
03/17/1993EP0532208A2 Two-color printer
03/17/1993EP0532180A2 A pulsed width modulation scanner for a tri-level highlight color imaging system
03/17/1993EP0532130A2 Data communication apparatus
03/17/1993EP0531934A1 Display device for apparatus for use in offices etc.
03/17/1993EP0531923A2 Method and apparatus for gray-level quantization
03/17/1993EP0531904A2 Method and apparatus for spatially variant filtering
03/17/1993EP0531891A2 A technique particularly suited for use in a print preview function for adapting CRT colorimetry to ambient lighting conditions
03/17/1993EP0531521A1 Method and apparatus for adaptively reducing interline flicker of tv-displayed image
03/17/1993EP0531455A1 Method and apparatus for encoding and decoding using wavelet-packets
03/17/1993CN1070055A Method and apparatus of screening colour separation and photomechenical production
03/16/1993US5195182 Frame buffer architecture for storing sequential data in alternating memory banks
03/16/1993US5195174 Image data processing apparatus capable of composing one image from a plurality of images
03/16/1993US5195148 Image reader having electrical and optical means for varying magnification
03/16/1993US5195092 Interactive multimedia presentation & communication system
03/16/1993US5194981 Light scanning apparatus
03/16/1993US5194969 Method for borderless mapping of texture images
03/16/1993US5194968 Communication apparatus
03/16/1993US5194967 Communication managing data processing device in facsimile machine
03/16/1993US5194966 Optical scanner threshold setting method and sheet
03/16/1993US5194946 Color scanner and automatic setting method of signal processing conditions
03/16/1993US5194945 Color image processing apparatus
03/16/1993US5194898 Optical scanning apparatus having means to stabilize optical unit against the platen
03/16/1993US5194879 Image forming apparatus capable of changing dotting density
03/16/1993US5194878 Color electrophotographic method
03/16/1993US5194729 Document reading apparatus with area recognizing sensor and obstacle detection
03/16/1993US5194725 Image sensor including resilient pressing means for pressing a light receiving sensor substrate against an image sensor frame
03/16/1993US5194353 Electrophotographic photosensitive member, and electrophotographic apparatus and facsimile employing the same
03/16/1993US5193798 Automatic paper feeder
03/16/1993CA1314627C Photoresponsive arrays
03/16/1993CA1314517C Polyimide film having improved adhesive properties
03/11/1993DE4230193A1 Point raster pattern generation for image reproduction - defining optical scanning system defined at angle to original system processed to generate matrix data
03/11/1993DE4209808C1 Reproducing picture on photosensitive material - representing image on CRT screen for settable time and forming sharp image on material by focussing lens
03/11/1993DE4137550A1 Vision improving appts., partic. for vehicle - has semiconductor laser assembly with linear array of several semiconductor laser elements.
03/10/1993EP0531217A2 Facsimile apparatus with automatic answering telephone function, and communication method in said apparatus