Patents
Sitemap › H04 - Electric communication technique › H04N - Pictorial communication, e.g. television › H04N 1 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
Patents for H04N 1 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof (142,802)
12/1989
12/12/1989US4887224 Image data processing apparatus capable of high-speed data encoding and/or decoding
12/12/1989US4887166 Direct-contact-type image sensor
12/12/1989US4887165 Document editing apparatus having detachable image reader
12/12/1989US4887164 Image data communication apparatus having an image data memory
12/12/1989US4887163 Image processing apparatus
12/12/1989US4887162 Facsimile machine having retransmission function
12/12/1989US4887161 Memory cartridge and digital electronic still video camera in which said memory cartridge is freely loadable/unloadable
12/12/1989US4887151 Encoding apparatus for color image data with block-by-block individual quantizing or individual encoding of luminosity, structure, and color information
12/12/1989US4887150 Device for converting video image signals to printing data signals
12/12/1989US4887139 Linear photo sensing device
12/12/1989US4886977 Photoelectric converter provided with voltage dividing means
12/12/1989US4886968 Radiation image read-out apparatus
12/12/1989US4886967 Light beam scanning apparatus
12/12/1989US4886963 Laser beam scanning apparatus with compact SOS sensor
12/12/1989US4886962 Method for driving a photo-sensor by applying a pulse voltage to an auxiliary electrode during a non-read time
12/07/1989DE3817810A1 Illumination system for an optical printer
12/06/1989EP0345019A2 Image forming device
12/06/1989EP0344976A1 Image generating apparatus
12/06/1989EP0344962A2 Facsimile apparatus
12/06/1989EP0344499A2 Method to scan textile models with an X-Y scanning system, and device which employs the method
12/05/1989US4885786 Method for enlarging an image stored in run representation form
12/05/1989US4885755 Method and apparatus for data communication
12/05/1989US4885704 Electronic document filing apparatus with icon selection
12/05/1989US4885699 Data processing apparatus for editing, filing, and printing image data by means of visual observation of the data on a display screen
12/05/1989US4885641 Image communication apparatus
12/05/1989US4885640 Image reading apparatus
12/05/1989US4885636 Block adaptive linear predictive coding with adaptive gain and bias
12/05/1989US4885594 Recording apparatus with position dependent pulse modulation
12/05/1989US4885576 Soft copy display of facsimile images
12/05/1989US4885467 Shading elimination method
12/05/1989CA1263751A1 Weighted-pixel characteristic sensing system
12/05/1989CA1263741A1 Compressed block code for facsimile transmission
11/1989
11/30/1989DE3916085A1 Facsimile machine having an error-correction mode and method for switching down a data transfer rate
11/30/1989DE3816627A1 Digital copier with an external storage medium
11/29/1989EP0343997A2 Image sensing apparatus
11/29/1989EP0343995A2 Scanner motor controller for controlling the rotating speed of a scanner motor
11/29/1989EP0343927A2 Image-processing apparatus
11/29/1989EP0343790A2 Video telecommunication system and method for compressing and decompressing digital colour video data
11/29/1989EP0343584A1 Method for coding the digital data of a bit map picture
11/29/1989EP0343308A1 System and apparatus of digitalization and indentification of sings and/or facsimiles
11/29/1989EP0275254B1 Electro-photographic printer with an exposure energy correction device for the optical character generator
11/28/1989US4884149 Image recording with data transmission bypass and shift register
11/28/1989US4884148 Circuit employing a plurality of counters and an interpolator for converting a video signal into a binary signal
11/28/1989US4884147 Image signal processing system
11/28/1989US4884132 Personal security system
11/28/1989US4884130 Method of describing a color in a triaxial planar vector color space
11/28/1989US4884104 Image forming apparatus having multiple image information inputs
11/28/1989US4884083 Printer compensated for vibration-generated scan line errors
11/28/1989US4884080 Color image printing apparatus
11/28/1989US4883961 Radiation image recording and read-out apparatus
11/23/1989EP0343004A2 Scanning optical apparatus
11/23/1989EP0342968A2 Method for recording and reproducing information, apparatus therefor and recording medium
11/23/1989EP0342936A2 Scanning optical apparatus
11/23/1989EP0342853A1 Electronic print dot generation
11/23/1989EP0342845A1 Producing half-tone images
11/23/1989EP0342640A2 Method for forming halftone screen
11/23/1989EP0342607A2 Color image input unit having a rare gas cathode discharge tube
11/23/1989EP0342549A2 Image processing method
11/23/1989EP0342291A2 An optical beam splitting method and an optical beam splitting/modulation method
11/23/1989EP0342290A2 Optical beam modulating device
11/23/1989EP0342214A1 Receiver clamping arrangement for thermal printers
11/23/1989DE3817249A1 Device for the reproduction of an original on the screen of a monitor
11/21/1989US4882776 Image information transmitting system
11/21/1989US4882686 Printing apparatus with improved data formatting circuitry
11/21/1989US4882631 Image reading device
11/21/1989US4882630 Printing apparatus and facsimile equipment
11/21/1989US4882629 Adaptive exposure control system
11/21/1989US4882622 Silhouette cutting apparatus
11/21/1989US4882621 Color image recording apparatus
11/21/1989US4882620 Color image reading apparatus with distributing type lens array and scan responsive shutters
11/21/1989US4882490 Light beam scanning apparatus having two detectors whose signal ratio indicates main scanning position
11/21/1989US4882489 Radiation image recording and read-out apparatus
11/21/1989US4882488 Radiation image read-out and reproducing method
11/21/1989US4882483 Optical scanning apparatus with optical correction for scan mirror surface tilt
11/21/1989US4881608 Coordinates input system to data transmitter
11/21/1989CA1263187A1 Image encoding and synthesis
11/21/1989CA1263175A1 Image reader for image processing apparatus
11/16/1989WO1989011116A1 A scanner system for successive irradiation of a working surface, particularly for ultra-violet exposure of a photo emulsion on a serigraphic printing frame
11/16/1989WO1989011113A1 Two-dimensional beam scanner
11/15/1989EP0342060A2 Image processing apparatus
11/15/1989EP0342053A2 Printer
11/15/1989EP0341984A2 Image processing method and apparatus
11/15/1989EP0341887A2 Frame buffer memory device
11/15/1989EP0341850A2 Document reading devices
11/15/1989EP0341700A2 Image input apparatus
11/15/1989EP0341666A2 Tonal conversion method for pictures
11/15/1989EP0341272A1 System for producing pixel image data from ccitt encoded pixel data
11/14/1989US4881131 Plotter adjustment circuit
11/14/1989US4881130 Image editing system for an image recording apparatus with the capability of marking an edited image area in the form of a vector
11/14/1989US4881129 Facsimile interface device for land-mobile telephones
11/09/1989DE3913478A1 Bilduebertragungsvorrichtung mit automatischer telefonanrufbeantwortung Bilduebertragungsvorrichtung with automatic phone call answering
11/08/1989EP0340854A1 Television transmission system including a hybrid encoding circuit
11/08/1989EP0340283A1 Image discrimination with continuous tone area thinning
11/07/1989US4879753 Thresholding algorithm selection apparatus
11/07/1989US4879741 Fax/telephone switching device
11/07/1989US4879605 Rasterization system utilizing an overlay of bit-mapped low address resolution databases
11/07/1989US4879604 Image reading apparatus
11/07/1989US4879595 Technique for reproducing an image read from a color original
11/07/1989US4879594 Reproduction of colored images
11/07/1989US4879459 Automatic power controller for semiconductor laser
1 ... 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 ... 1429