Quotables
"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8081200 | Laser exposure device, cleaning tool, and image forming apparatus Emission windows are prevented from being contaminated and are cleaned easily. The emission windows for emitting light beams are disposed on a housing of a laser exposure device having optical elements arranged inside for exposing a photoreceptor, and the upper surf... | 12/20/2011 |
| 8035669 | Image forming apparatus and shutter control method According to an aspect of the invention, a control method for an exposure shutter of an image forming apparatus includes, opening the shutter only to a slit glass for monochrome when monochrome printing is performed, and opening the shutter to slit glasses for monoc... | 10/11/2011 |
| 7999835 | Laser irradiation apparatus and method of fabricating organic light emitting display using the same A laser irradiation apparatus and method of fabricating an organic light emitting display using the same are provided. The laser irradiation apparatus includes: a laser generator; a mask having means for changing a propagation path of a laser beam; and a projection ... | 08/16/2011 |
| 7724272 | Print unit A print unit for transferring an image to a photosensitive medium is provided, and the print unit includes an intercepting member for intercepting light; a first plane light-emitting member for forming a first image by emitting light, provided on one side of the int... | 05/25/2010 |
| 7417653 | Electrostatic latent image forming medium using optical shutter array and image forming apparatus having the same An image forming apparatus includes an electrostatic latent image forming medium, a charge unit charging the surface of the electrostatic latent image forming medium with a predetermined potential, a toner supply unit (TSU) supplying toner to an electrostatic latent... | 08/26/2008 |
| 7352377 | Exposure device and image forming apparatus An exposure device is provided with a shutter member having a slit. The shutter member is provided between a member to be scanned and a housing of a main device unit that has an optical transmission member. The shutter member is freely movable between an open positi... | 04/01/2008 |
| 7277107 | Image-forming apparatus An image-forming apparatus includes one or more shutters that selectively permit passage of light. ... | 10/02/2007 |
| 7209155 | Printer device Temperature is detected by a temperature sensor disposed near a recording head. When the detection result is a temperature that is higher than room temperature, an appropriate movement amount of the recording head is calculated from a relation between response speed... | 04/24/2007 |
| 7203344 | Biometric imaging system and method A method and system of obtaining a ten-print plain impression fingerprint includes scanning a print image, processing the scanned image, separating the processed image into individual fingerprint images, and determining how many print images have been scanned. The m... | 04/10/2007 |
| 7203444 | Method and apparatus for image forming and optical writing device installed therein capable of reducing adhering dust A method and apparatus of image forming includes an optical writing device and an image carrier. The optical writing device includes a housing, a dustproof member, a light source, and a shield. The housing is provided with an opening. The dustproof member is light p... | 04/10/2007 |
| 7199810 | Beam scanning apparatus having polarization direction adjuster A beam scanning apparatus projects a beam onto a photoconductive drum according to corresponding image data, and includes a micro polarized array which is formed to receive a beam emitted from a light source and has a plurality of polarized cells arrayed in a predet... | 04/03/2007 |
| 7144752 | Method of manufacturing organic electroluminescent display device and organic electroluminescent display device, and display device equipped with organic electroluminescent display device A method of manufacturing an organic electroluminescent display device, an organic electroluminescent display device, and a display device equipped with an organic electroluminescent display device are provided that enable a microlens to be formed without affecting ... | 12/05/2006 |
| 7075687 | Scanned beam image capture device with a plurality of scan regions A display apparatus includes a scanning assembly that scans about two or more axes, typically in a raster pattern. A plurality of light sources emit light from spaced apart locations toward the scanning assembly such that the scanning assembly simultaneously scans m... | 07/11/2006 |
| 7052145 | Displays using solid state light sources Methods and systems are disclosed for displaying images represented by image-representative video signals. In one embodiment, an apparatus is provided for displaying images represented by image-representative input signals, including: rows of micro light sources, su... | 05/30/2006 |
| 6956595 | Light shutter device and a driving method thereof While light of R, G and B is switched from one to another and directed to a plurality of light shutter elements made of PLZT, a voltage is applied in accordance with image data between individual electrodes for the respective light shutter elements and a common elec... | 10/18/2005 |
| 6856426 | Solid state scanning type optical recording device An 8-bit (256 gradient) image is represented using a driver IC of 6-bit (64 gradient) construction to drive a plurality of arrayed optical shutter elements. The image data are divided into 64 gradient sections, synchronized by shift clock signals, and transmitted in... | 02/15/2005 |
| 6677971 | Recording apparatus and method thereof Pixel shapes 90a' formed by respective optical shutters 90' are set to parallelograms, and an alignment of the parallelograms is set to overlap partially with recording loci K of parallelogram pixels formed by adjacent optical shutters when scanning is ex... | 01/13/2004 |
| 6519350 | Embedding watermarks in images A method and arrangement for embedding a watermark in an image are disclosed. The watermark consists of a pseudo-random, dense subset of image pixels, e.g. a pattern of lines (20). A number of salient image pixels (21-26), for example, local extremes, cor... | 02/11/2003 |
| 6337706 | Solid scanning optical writing device, light amount correction method therefor and light amount measuring device A solid scanning optical writing device has multiple optical elements which are aligned in a zigzag fashion to form two lines in a main scanning direction. Each of the optical elements is turned ON/OFF in accordance with image data to write an image. In t... | 01/08/2002 |
| 6330016 | Image recording apparatus and image recording method An image recording apparatus includes a PLZT head. The PLZT head performs an interval exposure based on an interval exposure data between exposures of photosensitive material. Further, exposure data of a predetermined number of lines already used in an N-... | 12/11/2001 |
| 6310712 | Discrete element light modulating microstructure devices A light modulating or switching array (10) having a plurality of discrete protrusions (16) formed of electro-optic material, each of which is electrically and optically isolated from each other. The protrusions (16) have defined a top face (20), a bottom ... | 10/30/2001 |
| 6188425 | Exposure device capable of reducing unevenness in quantity of light An optical shutter drive period detector detects a drive period of each optical shutter element. Based on the detected drive period, an optical shutter drive voltage control device sets an optical shutter driving voltage which is applied to an optical shu... | 02/13/2001 |
| 6124872 | Optical writing device with controlled driving voltages Disclosed is an optical writing device having an array of a plurality of writing light shutter elements for an image forming purpose. The optical writing device also has at least one first monitoring light shutter element and at least one second monitorin... | 09/26/2000 |
| 6057955 | Optical modulator and drive method thereof An optical modulation element is constructed of an electro-optic crystal substrate, which includes individual electrodes arrayed and formed one-dimensionally on one surface of the substrate and also includes a common electrode formed on the other surface ... | 05/02/2000 |
| 6052144 | Image printing A printer to print images on a continuous web. The printer has a print station at which the images are printed on the web. A web transport transports the web in a lengthwise direction through the print station. The web transport including a slack loop sta... | 04/18/2000 |
| 5969741 | Raster scanner with a selectable spot dimension Raster scanner assemblies, and machines which use such raster scanner assemblies, which produce spots having a variable spot dimension. Raster scanner assemblies according to the present invention include an electronic subsystem which produces both image ... | 10/19/1999 |
| 5936652 | Apparatus for protecting a lens array of a printhead used for copy restrictive documents According to one aspect of the present invention, there is provided a printhead protective cover (50) which includes a shutter blade (60), an actuator (70) for moving the shutter blade (60), and a light trap (54) to prevent light from the printhead (12) f... | 08/10/1999 |
| 5930021 | Optical shutter element drive mechanism An optical shutter element drive mechanism for driving optical shutter elements that are electrically equivalent to condensers by charging and discharging the elements by a power source and switching elements. The optical shutter element drive mechanism i... | 07/27/1999 |
| 5872587 | Light signal generating device with reduced light leakage A light signal generating device wherein a line of light shutter elements made of PLZT are turned on and off individually in accordance with a driving signal corresponding to image data, and each turned-on light shutter element generates a light signal. T... | 02/16/1999 |
| 5831657 | Image forming system with smoothing pixels of a larger size An image forming apparatus according to the present invention comprises image forming unit for forming an image from a plurality of first pixels having a predetermined size, and smoothing processing unit for executing a smoothing process by controlling th... | 11/03/1998 |
| 5816165 | Method of encoding roll length indicia on printer media Rolls of printer paper are marked with information which indicates the length of paper remaining on a roll by measuring the distance between indicia successively applied by two separate print drums which each apply indicia at substantially equally spaced ... | 10/06/1998 |
| 5694161 | Image forming apparatus with a light directing device for varying density of an image An image forming apparatus includes a photoreceptor allowing an electrostatic latent image to be formed by light exposure, a light source emitting light beams, a light deflecting device for deflecting light beams from the light source, an exposure control... | 12/02/1997 |
| 5491566 | Integrated input-output device having a reading and a printing section on a single substrate An integrated input-output device for a data communication terminal equipment including a plurality of photoelectric converting circuits respectively arranged in n aligned blocks each including m aligned photoelectric converting elements, a plurality of f... | 02/13/1996 |
| 5414553 | Electroabsorptive asymmetrical fabry-perot modulator array for line printers There is disclosed a line printing system of this invention which utilizes an array of asymmetrical Fabry-Perot light valves for simultaneously transferring all pixel information of one raster line onto a photoreceptor. The number of elements of the light... | 05/09/1995 |
| 5317347 | Image forming apparatus An image forming apparatus which comprises a light shutter disposed between a source of light and an image carrier, which is electrostatically charged to a predetermined polarity, and capable of exhibiting a light transmissivity which varies according to ... | 05/31/1994 |
| 5260718 | Liquid crystal shutter xerographic printer with offset configuration lamp aperture and copier/printer with optically aligned lamps, image bars, and lenses A xerographic printer especially suitable for printing copies of oversized original documents is enabled by staggering a plurality of image bars in optical alignment with a linear projection means such as gradient index lens arrays which are tilted at a p... | 11/09/1993 |
| 5247387 | Method and device for driving electro-optical light shutter A method and device for driving an electro-optical light shutter array including a plurality of shutter elements each having an electro-optical effect to polarize an incident light by setting up an electric field. The device includes a plurality of indivi... | 09/21/1993 |
| 5155618 | Light signal generating device using electro-optical light shutter array A light signal generating device having a plurality of electro-optical light shutter elements which are turned on and off individually in accordance with image data. The light shutter elements are connected to individual electrodes each, and also connecte... | 10/13/1992 |
| 5126995 | Light scanning device A light scanning device comprising a source of a parallel light beam. The parallel light beam is passed through a first liquid crystal shutter and a first lens to converge at a focal point thereof. A rectangular light reflecting box with inside reflecting... | 06/30/1992 |
| 5093676 | Method of driving electro-optical light shutter for use in recording apparatus A method of driving an electro-optical light shutter for use in a recording apparatus. According to the method, an electric field of a predetermined direction is applied to the light shutter during a recording period and a further electric field having a ... | 03/03/1992 |
