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Magician Harry Houdini patented a "Diver's Suit" enabling the wearer to "quickly divest himself of the suit while being submerged and to safely escape and reach the surface of the water."
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| Number | Title | Issue Date |
| 7649574 | Image display method and device, and projector An image display method of splitting a frame into a plurality of sub frames by multiplying a frame frequency of an incoming image signal by an integer, and dividing an image that is originally for the frame into pieces for display on the sub frames. In the image dis... | 01/19/2010 |
| 7511771 | Color image projection system and method An image projection system projects an image on a projection screen having phosphor particles for converting incident violet light into green light which, together with red and blue light, creates the image in full color. The phosphor particles are bound in a bindin... | 03/31/2009 |
| 7499111 | Projection type display device and back projection type display device using the same The system provides a projection-type video display device with high image quality and high reliability. The system improves color purity by cutting the yellow component from red and green, enhances the optical energy balance of the three colors by providing a refle... | 03/03/2009 |
| 7486339 | Image projection lighting device displays and interactive images An improved multiparameter lighting fixture is provided comprising a base, a yoke, a lamp housing, and a communication port for receiving address and command signals. The lamp housing may be comprised of a lamp, a light valve, and a lens. The lamp, the light valve a... | 02/03/2009 |
| 7441909 | Optical assembly for a projection system An optical assembly for a projection system includes an objective lens and a retro-focus lens. Then objective lens and retro-focus lens share one or more lens elements. A method of projecting an image comprises directing light from a light source to one or more modu... | 10/28/2008 |
| 7441907 | Light source driving method A light source driving method for controlling a first and a second light source assembly of a projection apparatus to turn on and off at least once during each 1/n frame time is provided. The first light source assembly includes first color light sources and third c... | 10/28/2008 |
| 7429983 | Packet-based digital display system An all-digital display system includes an electronic processor that is operable to receive an internet protocol video packet and to generate a control signal based at least in part on the internet protocol video packet. In one particular embodiment, the electronic p... | 09/30/2008 |
| 7430022 | Color display device The invention relates to a color display device for display a color image and a method of operating such display. The color display device is provided with a plurality of picture elements, two selectable light sources having different predetermined radiance spectra,... | 09/30/2008 |
| 7410261 | Multicolor illuminator system In an image projection system, there are at least two light illumination units producing illumination light beams of respective first and second primary colors. A first beamsplitter is disposed to split at least a portion of the first illumination light beam into su... | 08/12/2008 |
| 7408527 | Light emitting device driving method and projection apparatus so equipped A projection system is provided with a controller equipped to drive light emitting devices of a light source of the projection system in a manner that enhances the operational life of the light emitting devices, the ability to provide peak white, and/or finer gray s... | 08/05/2008 |
| 7397476 | Projector, projection display system, and corresponding method and recording medium In response to a requirement of transferring a file from a personal computer PC to a projector 10 that is output by dragging and dropping a corresponding file icon onto a projector icon, a CPU 50 requires setting of a password. The CPU 50 maps t... | 07/08/2008 |
| 7390092 | Image projection lighting devices with visible and infrared imaging A lighting system comprised of a central controller, a digital communications path, and a plurality of image projection lighting devices (IPLDs) is provided. The IPLDs contain cameras that can capture both visible light and infrared light. Address signals sent from ... | 06/24/2008 |
| 7391475 | Display image generation with differential illumination A method of producing a display image comprises receiving image information representing an image to be displayed, producing an image formed of a plurality of images of different colors, and projecting the produced image along an optical path. The differently colore... | 06/24/2008 |
| 7370976 | Projection type image display device The device has flexure correcting means for operating to rotate a first eccentric cam provided at a central part of a first side of a reflecting mirror, thereby moving up and down the central part of the first side to correct the flexure of the reflecting mirror, to... | 05/13/2008 |
| 7369584 | Laser projection display A method and apparatus are provided for controlling the operation of a Laser Projection Display (LPD). Generally, the LPD is comprised of a laser, an optical system and a controller. The laser is adapted to emit a beam of laser light. The optical system is adapted t... | 05/06/2008 |
| 7365806 | Projection display apparatus including a slide mechanism to prevent dropping of a screen during attachment A projection display apparatus (1) includes slide bases (106) which are able to protrude from a housing (101). A screen unit (103) is supported by rotation plates (107) rotatably provided on the slide bases (106). The attach... | 04/29/2008 |
| 7365800 | Method for pre-processing image data A method for pre-processing image data, including steps of: receiving primary image data corresponding to an image or a sequence of images to be displayed; pre-processing the primary image data by applying a pre-distortion operation to the primary image data so as t... | 04/29/2008 |
| 7364313 | Multiple image projection system and method for projecting multiple selected images adjacent each other The present invention provides a projection device comprising: at least two input channels for receiving at least a first and a second input image signal, an image recombination system for combining the input image signals into one imaging signal, an input port for ... | 04/29/2008 |
| 7362336 | Four color digital cinema system with extended color gamut and copy protection A color display system including a display device for four or more visible color primaries and a processor for controlling the four or more color primaries to selectively render portions of an image or image sequence such that visually equivalent colors displayed in... | 04/22/2008 |
| 7357513 | System and method for driving semiconductor laser sources for displays A light engine includes a multi-color laser source having a set of semiconductor lasers. A controller synchronizes the operation of the laser source to operate in a color sequential order with a spatial modulator. ... | 04/15/2008 |
| 7358930 | Display system with scrolling color and wobble device A display system for displaying an image based upon image data includes an image processing unit configured to define a plurality of sub-frame images including a first sub-frame image and at least a second sub-frame image based upon the image data; a scrolling color... | 04/15/2008 |
| 7355657 | Laser illuminated projection displays A projection video display includes a light source including an OPS-laser delivering laser radiation in multiple transverse modes (a multiple-transverse-mode OPS-laser). The display includes a spatial light modulator for spatially modulating the radiation from the m... | 04/08/2008 |
| 7352499 | Arrangement for and method of projecting an image with pixel mapping A laser beam is swept by a scan mirror as a pattern of scan lines on a projection surface. The scan mirror moves at a variable speed along each scan line. Each scan line has a number of pixels. The pixels have time durations proportional to the variable speed of the... | 04/01/2008 |
| 7350923 | Image-rendering device In a computing device configured to be connected to a wireless network, a method of projecting an image via a projection device over the wireless network, is provided, wherein the projection device is connected to the wireless network via an image-rendering device c... | 04/01/2008 |
| 7350927 | Image display apparatus The present invention includes a reflection portion which light-modulates three primary color lights by three rectangular reflective liquid crystal light modulators, then color-combine the light-modulated lights and reflects the resultant light; and a projection len... | 04/01/2008 |
| 7352409 | Blue stretch circuit and level detection circuit A blue stretch circuit of this invention has a first voltage detection circuit and a second voltage detection circuit, each of which detects that an amount of each of the first and the second color difference signals are within a predetermined range, a blue stretch ... | 04/01/2008 |
| 7352360 | Multi-trail spot click-event detection method A multi-trail spot click-event detection method is disclosed, which uses a camera to capture a plurality of consecutive images from a display screen. The camera is connected to a host and sends the consecutive images to the host for determining if a click-event occu... | 04/01/2008 |
| 7347560 | Method and/or apparatus for projecting an image Methods, apparatuses and systems for projecting an image, such as a diffused image, are disclosed herein. ... | 03/25/2008 |
| 7347570 | Multimedia presentation apparatus and method A multimedia presentation apparatus and method by which a presenter is freed from the requirement of having or providing or transporting a supporting computer system such as the notebook or laptop system by the incorporation of computing capability and an accessible... | 03/25/2008 |
| 7342572 | System and method for transforming an ordinary computer monitor into a touch screen A system and method for turning a regular computer monitor screen into a touch screen using an ordinary camera. It includes an image-screen mapping procedure to correct for the non-flatness of the computer screen. It also includes a segmentation method to distinguis... | 03/11/2008 |
| 7339714 | Variable blazed grating based signal processing A light processing system includes an array of optical signal processing devices. The array of processing devices are operable to receive at least some of a first signal part and to modulate the first signal part based at least in part on a control signal received f... | 03/04/2008 |
| 7339625 | Optical and electrical blending of display images A method and a device for soft edge blending of projected display images (16a, 16b) is provided. The method combines optical and electrical soft edge blending in an blending area (26) by using electrical blending in one fraction ( | 03/04/2008 |
| 7338176 | Elevator installation with information representation on a shaft door An elevator installation includes an elevator car moved in an elevator shaft between floors in a building. A shaft door for closing the elevator shaft is arranged at each floor. A method for representing information on the shaft doors makes possible a qualitatively ... | 03/04/2008 |
| 7338174 | Shutter device and projection type video display Each shading plate comprises a rotating shaft and a driving shaft arranged vertically. First divided shading plate is loosely fitted to and supported by (not adhere to) the rotating shaft and rotates around the shaft. Second divided shading plates are fixed to the r... | 03/04/2008 |
| 7336322 | Image display apparatus An image display apparatus includes a second converging unit constructed so that a light flux from part of a first light source or from a separately provided second light source is converged to have a line shape, a spectroscope/deflector unit constructed so that his... | 02/26/2008 |
| 7333135 | Method, apparatus, and system for remotely annotating a target A system, method and apparatus for remotely annotating an object. An embodiment of the present invention includes a video camera projector that captures video images of a local object and projects annotations made by a user at a remote location onto said local objec... | 02/19/2008 |
| 7330164 | Video controlled detector sensitivity A method for setting opto-sensor detection sensitivity in a projection video display comprising the steps of sequentially generating video signals of different colors for illuminating a sensor with video images of the video signals. In responsive to the video signal... | 02/12/2008 |
| 7327408 | Illuminator that generates linearly polarized light for microdisplay based light engine A hollow sphere with a scattering (e.g., white diffusive) interior surface directs light input from at least one input light source to an exit. In one embodiment, an internal hot mirror and phosphor are positioned to intercept the input light on which visible light ... | 02/05/2008 |
| 7324169 | Projection optical system, projection television, and method of manufacturing lens included in projection optical system Provided are a projection optical system, a projection television, and a method of manufacturing a lens included in the projection optical system. The projection optical system includes lenses for projecting color beams onto a screen. A color filter layer, absorbing... | 01/29/2008 |
| 7322700 | Image display apparatus An image display apparatus includes an indicating element which modulates or emits light as a pixel in accordance with image information. A displacement unit optically displaces a position of the pixel for each of two or more sub-fields constituting an image field c... | 01/29/2008 |