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)
10/1978
10/17/1978US4121225 Facsimile recording stylus
10/17/1978US4120720 Combined means for accurately positioning electrostatographic recording members during imaging and means for establishing electrical connection with the intermediate conductive layer thereof
10/17/1978CA1040541A1 Method of, and apparatus for, printing grey-tone images
10/10/1978US4119975 Facsimile cassette with wire electrode
10/10/1978CA1040254A1 Dot matrix printer with slanted print head and modular skewing of dot pattern information
10/03/1978US4118598 Amplitude modulated impatt diode oscillator and a low cost communication system using same
10/03/1978CA1039790A1 Method and apparatus for merging satellites in an ink jet printing system
10/03/1978CA1039645A1 Anti-fungal and/or anti-bacterial hardware for ink printing apparatus
09/1978
09/26/1978US4117518 Ink drop facsimile system
09/26/1978US4117517 Data compression system for binary facsimile signals
09/26/1978US4116527 Device for concentrating light from a linear field on to a receiver
09/26/1978CA1039201A1 Drive circuit for thermal printing array
09/26/1978CA1039200A1 Scanning systems
09/19/1978US4115817 Device including a unit for feeding a recording medium at a predetermined speed to a unit for processing that provisional record into a final one which is formed on the medium fed at another speed
09/19/1978US4115816 Electronic screening
09/19/1978US4115815 Facsimile signal coding method
09/19/1978US4115813 Television enlarging display apparatus for graphic material
09/19/1978US4115788 Compound matrix formation in an ink jet system printer
09/19/1978US4115787 Interpolation in an ink jet system printer
09/19/1978US4115786 Constant wavelength magnetic recording
09/19/1978US4114236 Hinge structure for platen covers
09/12/1978US4114165 Precision track for moving facsimile recording blade
09/12/1978US4114037 Multiple lens system for an optical imaging device
09/12/1978US4113993 Automatic dialer having a recall memory
09/12/1978US4113521 Process for producing magnetic particles by vacuum evaporation of iron with collection on a magnetized surface
09/12/1978US4113391 Method for controlling voltage and providing temperature compensation in a thermal printer
09/12/1978CA1038499A1 Apparatus for data compression encoding and decoding
09/12/1978CA1038441A1 Process for forming developable electrostatic charge patterns and devices therefor
09/05/1978US4112469 Jet drop copying apparatus
09/05/1978US4112468 Facsimile receiver
09/05/1978US4112467 Failure mode control apparatus for electronic graphic data transmission system
09/05/1978US4112433 Meniscus dampening drop generator
09/05/1978US4111119 Record sheet clamping mechanism for drum type facsimile and the like
09/05/1978CA1038082A1 Circuit arrangement for conversion of an analog signal into a binary signal
09/05/1978CA1038069A1 Method for producing an image
08/1978
08/29/1978US4110826 Apparatus and process for color-identification
08/29/1978US4110801 Magnetic tape transducing apparatus
08/29/1978US4110796 Half-tone image recording system
08/29/1978US4110795 Method of graphic data redundancy reduction in an optical facsimile system
08/29/1978US4110788 Multiple wavelength acoustooptic deflection
08/29/1978US4110036 Unit for making color component records of color transparencies
08/29/1978CA1037541A1 Jet nozzle structure for electrohydrodynamic droplet formation and ink jet printing system therewith
08/29/1978CA1037540A1 Ink jet printer apparatus and method of printing
08/29/1978CA1037539A1 Ink recirculating system for ink jet printing apparatus
08/29/1978CA1037519A1 Method of producing nozzles in monocrystalline silicon wafer
08/22/1978US4109284 Self-scanning photo-sensitive circuits
08/15/1978US4107786 Character size changing device
08/15/1978US4107742 Method and apparatus for recording graphic information magnetically
08/15/1978US4107741 Data generating and recording system for scanning a display tube screen
08/15/1978US4107740 Optical scanning system utilizing an oscillating lens and mirror
08/15/1978US4107687 Recording device
08/15/1978US4107648 Scan encoding of two dimensional pictorial entities
08/15/1978CA1036712A1 Local correction apparatus for a color previewer
08/15/1978CA1036711A1 Optical scanner
08/08/1978US4106061 Density control for ink jet copier
08/08/1978US4106060 Electronic mail box
08/08/1978US4105327 Multiple reduction indicators for continuously variable reduction copier machines
08/01/1978US4104644 Framing pulse generator for facsimile recorder
07/1978
07/25/1978US4103287 Variable length codes for high quality image encoding
07/25/1978US4103156 Light scanning device
07/18/1978US4101934 Coding system
07/11/1978US4100580 Facsimile system
07/11/1978US4100575 Method of and apparatus for modifying a video signal to prevent unauthorized recording and reproduction thereof
07/11/1978US4100552 Recording apparatus for a voltage sensitive recording system
07/11/1978US4100408 Signal generator for raster type scanners
07/04/1978US4099254 Method and apparatus for electronic collation
07/04/1978US4099208 Facsimile scanning system
06/1978
06/27/1978US4097904 Optical read head
06/27/1978US4097903 Facsimile signal coding system
06/27/1978US4097873 Ink jet printer for selectively printing different resolutions
06/27/1978US4097846 Data storage and retrieval system
06/20/1978US4096530 Method and apparatus for obscuring the raster lines in a photograph of a video monitor screen
06/20/1978US4096527 Run length encoding and decoding methods and means
06/20/1978US4096526 Run length encoding and decoding methods and means
06/20/1978US4096520 Run length encoding and decoding methods and means
06/20/1978US4096519 Circuit arrangement for resetting the signal level of a darkest area of a color or monochrome image reproduction apparatus
06/20/1978US4096489 Electrostatic-recording gas discharge device with improved scanning stability
06/20/1978US4096486 Recorder
06/20/1978US4095881 Efficient illumination system
06/13/1978USRE29670 Multi-color acoustooptic modulator
06/13/1978US4095248 Redundancy reduction system for facsimile transceivers
06/13/1978US4095240 Exhaust system for pyrographic printer
06/13/1978US4095234 Recording apparatus for providing lustrous printing
06/13/1978US4094606 Xerographic system employing waveguide addressing and modulating apparatus
06/06/1978US4093964 Image reproducing systems
06/06/1978US4093955 Well-logging camera using modulated laser light path for exposing in camera processable electrographic film
06/06/1978US4093340 Light-beam deflection system
05/1978
05/30/1978US4092677 Truncated run length encoding for fractionally difference modulated video signals
05/30/1978US4092676 Block length multiple plus run length residue codes for run length encoding
05/30/1978US4092675 Truncated run length encoding with a modular variable length code format
05/30/1978US4092668 Correction circuit for a color scanner
05/30/1978US4092665 Method and means for extracting variable length data from fixed length bytes
05/30/1978US4092632 Crossover arrangement for multiple scanning arrays
05/30/1978US4092576 Method and apparatus for facsimile scanning
05/23/1978US4091424 Facsimile compression system
05/23/1978US4091423 Synchronous digital data scrambling system
05/23/1978US4091391 Drive system for thermal recording apparatus
05/23/1978US4091379 Analog to digital wave shaping system
05/16/1978US4090223 Video system for storing and retrieving documentary information
05/16/1978US4090222 Facsimile signal reception system
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