Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7366244 | Method and system for antenna interference cancellation A wireless communication system can comprise two or more antennas that interfere with one another via free space coupling, surface wave crosstalk, dielectric leakage, or other interference effect. The interference effect can produce an interference signal on one of ... | 04/29/2008 |
| 7123676 | Method and system for antenna interference cancellation A wireless communication system can comprise two or more antennas that interfere with one another via free space coupling, surface wave crosstalk, dielectric leakage, or other interference effect. The interference effect can produce an interference signal on one of ... | 10/17/2006 |
| 7050388 | Method and system for crosstalk cancellation Signals propagating in one communication channel can generate crosstalk interference in another communication channel. A crosstalk cancellation device can process the signals causing the crosstalk interference and generate a crosstalk cancellation signal that can co... | 05/23/2006 |
| 6917447 | Method and apparatus for recording digital images on photosensitive material The present invention is directed to a method and apparatus for exposing photosensitive material to form high quality continuous tone and/or color images thereon. The preferred apparatus includes an imaging head comprised of a plurality of red light sources, a plura... | 07/12/2005 |
| 4520356 | Display video generation system for modifying the display of character information as a function of video attributes A video generation logic for a display controller includes a precoded PROM which combines visual attributes associated with the characters of information to be displayed on the display screen to produce multiple video control signals for modifying the dot... | 05/28/1985 |
| 4426645 | Character generating system An arrangement for generating characters of relatively elongated vertical dimension and having a descender portion in a system wherein the character information is stored in read-only memory of substantially equal size for each of the characters to be gen... | 01/17/1984 |
| 4394076 | Indicia recording apparatus Apparatus for recording characters on a photographic record medium including spaced feed and takeup reels for carrying a roll of the medium. A support such as a cylinder is disposed between the reels supports the record medium. A carriage is controllably ... | 07/19/1983 |
| 4342096 | Variable pitch character generator for dot matrix printer Proportional spacing of characters, for example by a laser-xerographic printer, is achieved using a character generator memory, for example a random access memory (RAM), to store the characters of a font in a plurality of variable-size binary matrices. Ea... | 07/27/1982 |
| 4317004 | Imaging and scanning system A sheet of optical fibers, circular at one end thereof and unfurled at the other end to form a straight line, is used to transmit laser-emitted light through a rotating prism and onto a photosensitive surface for electrophotographic printing or copying.... | 02/23/1982 |
| 4310226 | Indicia recording apparatus Apparatus for recording characters on a photographic record medium including spaced feed and takeup reels for carrying a roll of the medium. A cylindrical support disposed between the reels supports the record medium. A carriage is controllably movable op... | 01/12/1982 |
| 4257042 | Electronic pattern generator In an electronic pattern generator characters to be recorded are displayed on the screen of a cathode ray tube and then exposed on a recording medium mounted on a carrier, which is displacable in a plane parallel to the plane of the screen. The characters... | 03/17/1981 |
| 4251825 | Non-impact printer using a modulated light beam A non-impact printer comprising: a light source; a light modulator; a light modulation controller including a print timing control pulse generator; a light beam reflector made of a polygonal mirror; and a photoconductor drum upon which a modulated light b... | 02/17/1981 |
| 4241340 | Apparatus for generating displays of variable size characters A character display system is disclosed which provides displays of characters of variable size. A diddle raster scanning technique is used to display each character in its entirely before proceeding with the display of the next character. The size of the ... | 12/23/1980 |
| 4240073 | Cathode ray tube display system with display location memory A cathode ray tube display system apparatus and method in which a memory stores the addresses necessary to cause the electron beam of a cathode ray tube to impinge upon predetermined locations on the cathode ray tube screen. A single beam electron gun can... | 12/16/1980 |
| 4234931 | Information output apparatus for putting out a character dot pattern In reading out character dot patterns corresponding to character code signals from a dot pattern store therein a number of character dot patterns representing characters, there is provided a store therein position signals representing positions whereat th... | 11/18/1980 |
| 4230902 | Modular laser printing system A laser printing system having a plurality of modules is provided wherein one of the modules comprises a laser, modulator and part of the system optics, the light output from the module being directed to a rotating scanner. The components in the module ar... | 10/28/1980 |
| 4178471 | Laser computer output microfilmer with electrical misalignment correction A laser computer output microfilmer wherein vertical and horizontal misalignment errors between the superimposed data character images and a format slide image are electrically corrected by appropriately incrementing or decrementing the presetting inputs ... | 12/11/1979 |
| 4157537 | Display system utilizing digital-analog vector generation A system wherein dynamic capability is incorporated into direct view storage tube terminals to provide both refreshed and stored information. More specifically, the system incorporates dynamic picture capability into direct view storage tubes by utilizing... | 06/05/1979 |
| 4133600 | Method of manufacturing and utilizing holographic lens means Holographic lenses are formed on a substantially transparent scanning disc wherein a line focus is the object for each hologram. Such hologram is then used to reconstruct the line focus at the location of the record to be scanned, thereby alleviating tole... | 01/09/1979 |
| 4119955 | Circuit for display, such as video game display A digital display circuit for use with a video game or other displays fabricated as an MOS integrated circuit is described. The circuit permits the simultaneous display of many different patterns (and the simultaneous display of the same pattern) at any l... | 10/10/1978 |
| 4118128 | Optical typewriter A typewriter for writing with a light beam on a photo-sensitive paper includes a translatable typewriter carriage having a sight carried fixedly to a frame of the typewriter defining a region on which an indicia is being written. A light source is carried... | 10/03/1978 |
| 4110794 | Electronic typewriter using a solid state display to print A word processing system for displaying and reproducing a plurality of alphanumeric characters on a solid state display and capable of printing from that display consisting of a housing containing an electronic keyboard with indicia markings on the keys. ... | 08/29/1978 |
| 4088990 | Time of day, time and date and event number generator for recordation of physiological events A code generator generates, upon command, code sequences representing either time of day, time and date, or event number codes, in either single sequences or continuously repeating code sequences for simultaneous recordation with a physiological event on ... | 05/09/1978 |
| 4081604 | Superposition recording apparatus A superposition recording apparatus comprises a first read-out unit for reading first coded recording information from a first storage medium, a first memory for storing the first recording information read by the first read-out unit, a first dot signal g... | 03/28/1978 |
| 4053878 | Method and apparatus for improving the clarity and character density on a dot matrix video display A method and apparatus is shown for improving the clarity and character density on a cathode ray tube (CRT) display in which characters are formed row by row from discrete character elements in row and column coordinate matrices. Unblanking signals form t... | 10/11/1977 |
| 4039746 | Record member advance system Apparatus for recording characters displayed on the screen of a cathode ray tube on an elongate record member has a stepper motor for advancing the record member on completion of a line of the character, recording being carried out substantially continuou... | 08/02/1977 |
| 4038493 | Method and apparatus for phototypesetting Method and apparatus for use in phototypesetting operations wherein a character, e.g. in transparency form, is scanned, for example, by a lightspot output of a cathode ray tube of the phototypesetting apparatus, processed to a suitable format and stored, ... | 07/26/1977 |
| 4031519 | Printer A printer responds to channel commands including coded data received over a channel from a data processing unit by printing characters represented by the coded data using an electrophotographic printing arrangement. The coded data received by the printer ... | 06/21/1977 |
| 4024341 | Method of picking out synchronizing light beam in light scanning systems In a light scanning recording or displaying system, a synchronizing light beam is separated from a signal light beam used for recording images or display utilizing the difference in wavelength of the two light beams. The synchronizing light beam and the s... | 05/17/1977 |
| 4007442 | Intermixed line heights and blank line formation in a buffered printer Intermixing of line heights in a buffered printer is accomplished by storing a different byte in a forms control buffer for each line of coded character data in a page to be printed. As the coded data of each line is advanced for printing by an arrangemen... | 02/08/1977 |
| 4005390 | Merger and multiple translate tables in a buffered printer In a buffered printer in which lines of character code bytes representing characters to be printed are translated into lines of graphic code bytes by a translate table, assembled into a page format in a page buffer and applied to a character generator mod... | 01/25/1977 |
| 3999168 | Intermixed pitches in a buffered printer In a printer in which character code bytes representing characters to be printed are translated into graphic code bytes, assembled into lines and pages, and thereafter used to select character image bits which are applied to modulate a scanning laser beam... | 12/21/1976 |
| 3989363 | Continuous film feed apparatus An apparatus for moving film through a projection or camera system utilizing continuous, uninterrupted motion of the film. Conventional sprocketed film is moved from reel to reel at a constant velocity. The image of the film frame passing over the film pr... | 11/02/1976 |
| 3976990 | Apparatus and method for offsetting selected characters of a character display An apparatus is disclosed for displaying subscript and superscript characters on the screen of a cathode ray tube. The encoded characters are selectively read from a memory which also provides two extended level outputs relating to the subscript and super... | 08/24/1976 |
| 3975705 | Color display of geophysical and other data A new and improved color display of geophysical and other scientific and industrial or similar technological data readily and quickly obtained from input data and containing color indications of variables in the data in a form better adapted for interpret... | 08/17/1976 |
| 3955189 | Data display terminal having data storage and transfer apparatus employing matrix notation addressing Disclosed is data storage and transfer apparatus forming a sub-system of a data display terminal of the type in which a page of characters arranged in rows and columns are displayed on a television monitor by means of converting a plurality of character-r... | 05/04/1976 |
| 3953859 | Method and apparatus for recording latent photographic images The invention provides a method of and apparatus for recording latent photographic images on film by scanning the film in a raster pattern with a spot produced by focusing onto the film a beam of radiation, for example a laser beam, which is modulated in ... | 04/27/1976 |
| 3936596 | Optical projection apparatus An optical projection apparatus including a projection screen on which a microimage is projected on an enlarged scale and adapted to be connected with an information processing system comprising; Microfilm feeding means which feeds and stops a microfilm on whi... | 02/03/1976 |
