| Patents for H04N 1 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof (142,802) |
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| 08/12/1980 | US4217480 Thermal print bar |
| 08/12/1980 | US4217467 Amplitude and periodic phase modulation transmission system |
| 08/12/1980 | CA1083732A1 Apparatus for the direct connection of ancillary equipment to a telephone network |
| 08/05/1980 | US4216495 Electro-optical scanning |
| 08/05/1980 | US4216481 Method of driving a thermal head and apparatus therefor |
| 08/05/1980 | US4216378 Optical scanner |
| 08/05/1980 | US4215912 High speed scanning device for scanning the same area plural times by a beam deflected by a single deflecting surface |
| 07/29/1980 | US4215375 Digital facsimile transmission system for screened pictures |
| 07/29/1980 | US4215374 Encoding device comprising predictors for thinned and unthinned patterns |
| 07/29/1980 | US4215251 Switching apparatus selectively utilizing a regenerative repeater |
| 07/29/1980 | CA1082813A1 Information recording and recognition |
| 07/29/1980 | CA1082803A1 Constant wavelength magnetic recording |
| 07/22/1980 | US4214277 Halftone implementation apparatus |
| 07/22/1980 | US4214276 Printing methods for producing prints having images of variable size and text |
| 07/22/1980 | US4214157 Apparatus and method for correcting imperfection in a polygon used for laser scanning |
| 07/22/1980 | US4214154 Light beam scanning apparatus |
| 07/22/1980 | CA1082282A1 Method and apparatus for harmonic ink jet drop generation |
| 07/22/1980 | CA1082109A1 Method for digital color correction in color picture recording systems |
| 07/15/1980 | US4213163 Video-tape recording |
| 07/15/1980 | US4213158 Optical data recording system utilizing acoustic pulse imaging to minimize image blur |
| 07/15/1980 | US4213157 Self tracking laser scanning apparatus |
| 07/15/1980 | US4213156 System for the phase locking synthesized high frequency pulses to a low frequency signal |
| 07/15/1980 | US4213155 Process for improving image quality in picture telegraphy |
| 07/15/1980 | US4213154 Facsimile communication system |
| 07/15/1980 | US4212530 Means and method for printing on light sensitive material |
| 07/15/1980 | US4212516 Scanner with multiple optical fibres |
| 07/09/1980 | EP0013161A1 Apparatus for reproducing graphic information |
| 07/09/1980 | EP0012860A1 Suspension arrangement for a body vibrating at resonance frequency |
| 07/09/1980 | EP0012858A1 Display and recording apparatus |
| 07/09/1980 | EP0012746A1 Telecopying process using a smectic liquid cristal cell and transceiver telecopier for application of said process. |
| 07/08/1980 | US4212037 Method for scanning a card with video signal |
| 07/08/1980 | US4212036 Method for coding addresses of information change picture elements in facsimile signal |
| 07/08/1980 | US4212035 Facsimile signal coding system |
| 07/08/1980 | US4212018 Laser beam recording system |
| 07/01/1980 | US4210936 Method and apparatus for reproducing an original gray scale image |
| 07/01/1980 | US4210932 Method and apparatus for recording and reproducing on film directly viewable TV video signals |
| 07/01/1980 | CA1080525A1 Optical device for concentrating light from a linear field on to a receiver |
| 06/25/1980 | EP0012173A1 Apparatus for picture processing with resolution conversion |
| 06/17/1980 | US4208677 Facsimile circuit |
| 06/17/1980 | CA1079793A1 Single array ink jet printer |
| 06/17/1980 | CA1079792A1 Multiple array printer |
| 06/17/1980 | CA1079791A1 Memory management system for an ink jet copier |
| 06/17/1980 | CA1079790A1 Ink jet copier |
| 06/17/1980 | CA1079788A1 Ink jet printer apparatus and method of printing |
| 06/11/1980 | EP0011722A2 Process and device for the digital control of the making of colour reproductions |
| 06/10/1980 | US4207599 Run length encoding and decoding process and apparatus |
| 06/10/1980 | US4207598 Automatic mail sending system |
| 06/10/1980 | CA1079241A1 Electrical recorder and belt with styli therefor |
| 06/03/1980 | US4206482 Electronoptical apparatus for analysing documents |
| 06/03/1980 | US4206475 Apparatus and a method for obtaining digital data for rasters having a plurality of color components |
| 06/03/1980 | US4206348 Optical scanner with electrooptical feedback for beam positioning |
| 05/28/1980 | EP0011543A1 Method for recording a television picture on a two-dimensional carrier and means for applying the method |
| 05/27/1980 | US4205387 Data storage and retrieval system |
| 05/27/1980 | US4205350 Reproduction scanning system having intermediate storage between input and output scanning stations |
| 05/27/1980 | US4205349 Optoelectronic scanning apparatus |
| 05/27/1980 | US4205348 Laser scanning utilizing facet tracking and acousto pulse imaging techniques |
| 05/27/1980 | US4205345 Method and device for eliminating the background brightness variation of a video signal |
| 05/27/1980 | US4205340 Circuit for making a CRT display a TV picture for a copy with dots superposed on half-tone picture areas |
| 05/27/1980 | US4205339 Frame storage and retrieval wherein the frame fields are quadrature amplitude modulated on a single carrier |
| 05/27/1980 | US4205323 Paper feed control |
| 05/27/1980 | US4204729 Transmitting and copying machine |
| 05/27/1980 | US4204725 Apparatus for detecting information stored on photocopying media, transmitting and storing the same |
| 05/27/1980 | CA1078233A1 Mirror type beam steerer having a virtual pivot |
| 05/20/1980 | US4204233 Electronic facet error correction for laser scanning |
| 05/20/1980 | US4204232 Pattern transmission system comprising an encoder for encoding partial thinned patterns in two scanning lines along only one boundary line |
| 05/20/1980 | US4204230 High resolution input scanner using a two dimensional detector array |
| 05/20/1980 | US4204223 Method and apparatus for making color corrections in the manufacture of printing plates |
| 05/20/1980 | US4204090 Process and an arrangement for reducing the redundancy of binary character sequences which describe characters or graphic patterns |
| 05/14/1980 | EP0011023A1 Scanning device with photosensors and facsimile apparatus comprising such a device |
| 05/14/1980 | EP0011003A1 Telecopyer using a liquid crystal cell |
| 05/14/1980 | EP0010926A1 Input scanner using a two dimensional detector array |
| 05/13/1980 | US4203136 Method and apparatus for electro-optically sensing, transmitting and recording pictorial information in particular facsimile transmission systems |
| 05/06/1980 | US4201994 Information formation apparatus |
| 05/06/1980 | US4201455 Laser-operated apparatus for data and signal recording |
| 05/06/1980 | CA1077120A1 Dual sensor for multi-nozzle ink jet |
| 04/30/1980 | EP0010323A1 A method for producing orthogonally screened colour separation images |
| 04/29/1980 | US4200788 Modular array |
| 04/29/1980 | US4200769 Process and arrangement for selectively transmitting predetermined characters or graphic patterns |
| 04/29/1980 | CA1076694A1 Facsimile reproduction system |
| 04/29/1980 | CA1076639A1 Ink jet with uniform density trace control for recorders |
| 04/29/1980 | CA1076403A1 Background brightness control for document copier |
| 04/22/1980 | US4199789 Document analyzer in particular for a facsimile transmitter |
| 04/22/1980 | US4199784 Method and apparatus for electro-optically recording pictorial information for a facsimile transmission system |
| 04/22/1980 | CA1076255A1 Lid interlock and turntable brake system |
| 04/17/1980 | WO1980000753A1 Reproductive procedure for original models which are explored in as much as concerns their defree of coloring,by a three component method |
| 04/16/1980 | EP0010010A1 Threshold device for distinguishing between black and white on a document and facsimile transmitter comprising such a device |
| 04/16/1980 | EP0009983A1 Optical beam splitting apparatus |
| 04/16/1980 | EP0009674A1 Data manipulation apparatus for improving the legibility of scale changed image objects |
| 04/16/1980 | EP0009627A1 Transmission system for telecopying and for the electronic transfer of house post |
| 04/15/1980 | US4198154 Image recording apparatus capable of representing half-tones on an image |
| 04/15/1980 | CA1075816A1 Single read station acquisition for character recognition |
| 04/08/1980 | US4197560 Exposure control for selective speed xerographic printing and the like |
| 04/08/1980 | US4196962 Light conducting rods with linear convex mirror arrays |
| 04/08/1980 | US4196898 Sheet feed apparatus for facsimile system |
| 04/03/1980 | WO1980000645A1 Digital encoder for facsimile transmission |
| 04/02/1980 | EP0009378A1 Image transcribing apparatus |
| 04/01/1980 | US4196455 Copying machine with constant length scanning beam |
| 04/01/1980 | US4196454 Tone error control for relatively large image areas |
| 04/01/1980 | US4196453 Image screening system |
| 04/01/1980 | US4196452 Tone error control for image contour removal |