Abstract: The present invention relates a video monitor display positioning system of the type in widespread use in passenger-aircraft entertainment systems and includes a housing in which a video screen is rotatably positioned for rotation between a retracted position and an extended position, but with rotary motion provided through a hydraulic system that includes a mechanical linkage from the screen to a linear motion to rotational motion actuator subassembly which is in turn actuated by a hydraulic system that includes a cylinder, two mutually opposed, hollowed pistons, an internal spring positioned within the cavity formed by the hollow pistons, a hydraulic circuit including a hydraulic oil reservoir, an electric motor that controls a hydraulic pump, a solenoid valve and an over pressure switch.

Abstract: In a liquid crystal display circuit 100 enabling gradation display of a pixel by using both a pulse width modulation in which a drive pulse width PW for each segment is changed stepwise and a frame modulation in which the way of outputting a drive pulse is changed stepwise for each of one pair of frames F1 to F4 of a display screen, it is controlled for each of the frames of the display screen whether or not the pulse width PW of a segment signal of each pixel is increased by a minimum fine adjustment width, so that the total density of the frames F1 to F4 has continuity and unevenness does not occur in gradation setting.

Abstract: A method and apparatus for providing force feedback to a user operating a human/computer interface device and interacting with a computer-generated simulation. In one aspect, a computer-implemented method simulates the interaction of simulated objects displayed to a user who controls one of the simulated objects manipulating a physical object of an interface device. The position of the simulated object, as provided within the simulation and as displayed, is mapped directly to the physical position of the user object. This mapping is broken under conditions that are effective to provide force feedback to the user which imparts a physical sensation corresponding to the interaction of the simulated objects. In another aspect, a ball simulated ball object interacts with a user-controlled simulated object in a simulation to allow the user to utilize a wide range of physical skill and dexterity in interacting with the simulation.

Abstract: A matrix display device comprises a matrix display (10) with picture elements (18) arranged in a number of display lines (R). A driving circuit (3) supplies picture signals (Ds) to the picture elements (18) dependent on a video signal (V) which comprises, in a field (Fp), a number of video lines which is lower than the number of display lines (R). A line period (Tl) is defined as the duration of one of the video lines. To display video information on all display lines (R) regularly, after a number of line periods (Tl), more than one display line (R) is selected within one line period (Tl) to write video information to more than one display line (R). Therefore, a timing circuit (21) receives video timing information (S) to determine consecutive and non-overlapping select periods (Tr), each select period (Tr) completely occurring within a line period (Tl). In at least one of the line periods (Tl), at least two select periods (Tr) occur.

Abstract: Two transparent conductive panels are separated by a perimeter of elastic adhesive that forms a sealed gap in which transparent insulative fluid is interposed. The fluid has a refraction index close to that of the panels to improve light transmittance through the device. The small width of the gap improves response time and prevents formation of a vacuum in the gap. The panels are connected to a position detection circuit that determines coordinate position of an applied pressure point. Spacers in the gap reduce the chance of accidental large-area contact which would result in an erroneous position command. The elasticity of the adhesive and the small gap width provide better temperature variation tolerance in addition to improved consistency and reliability of operation.

Abstract: A junction-based field emission display, wherein the junctions are formed by depositing a semiconducting or dielectric, low work function, negative electron affinity (NEA) silicon-based compound film (SBCF) onto a metal or n-type semiconductor substrate. The SBCF can be doped to become a p-type semiconductor. A small forward bias voltage is applied across the junction so that electron transport is from the substrate into the SBCF region. Upon entering into this NEA region, many electrons are released into the vacuum level above the SBCF surface and accelerated toward a positively biased phosphor screen anode, hence lighting up the phosphor screen for display. To turn off, simply switch off the applied potential across the SBCF/substrate. May be used for field emission flat panel displays.

Abstract: Lines or sections of lines on a scanned CRT display are checked to determine whether a moire pattern exists. The existence is determined by comparing the number of pixels occurring on a line or a section of a line to a reference count corresponding to a moire pattern. Substantial equality of the pixel count and the reference count enables a moire correction circuit for the section of the display containing the moire pattern. In sections of the display where the moire pattern does not occur, i.e., the pixel count and the reference count are not substantially equal, the moire correction circuit is automatically disabled.

Abstract: A display apparatus comprises a displaying device for displaying video information for an observer, a detecting device for detecting a motion of at least a part of the body of the observer, and a controlling device for making the displaying device display a display element for input of an operation instruction, and starting a process corresponding to the display element when the detecting device detects a specified motion in correspondence to the display element.

Abstract: An interactive display system comprising a touch sensitive display surface for sensing pressure applied thereto and in response generating control signals indicating locations of the applied pressure, a personal computer for receiving the control signals and in response generating graph images, and an LCD panel in combination with an overhead projector for receiving and projecting the graphic images onto the touch sensitive display surface at the indicated locations. The LCD panel and overhead projector may be provided an an integral unit.

Abstract: A drive apparatus for a charge storage light-emitting device which comprises drive-voltage applying means for applying a drive voltage to the charge storage light-emitting device, drive-current limiting means for limiting a drive current to be supplied to the charge storage light-emitting device, voltage detection means for detecting a terminal voltage between both electrode terminals of the charge storage light-emitting device, and voltage control means for controlling a value of the drive voltage in accordance with the detection result as a spatial charge voltage from the voltage detection means.

Abstract: An apparatus for detecting the video mode of a video data, the apparatus capable of receiving a plurality of synchronous signals along with the transmission of the video data, comprises: a first counter stage capable of receiving the synchronous signals and generating a first counter stage output signal that represents the number of total lines in a frame of the video data; a second counter stage capable of receiving an active line indicator signal that indicates an active line in the video data, the second counter stage capable of generating a second counter stage output signal that represents the number of active lines in a frame of the video data; and a logic circuit coupled to the first counter stage and to the second counter stage, the logic circuit capable of detecting the video mode of the video data based upon the values of the first counter stage output signal and the second counter stage output signal.

Abstract: Disclosed is a display-driving device for driving a display comprising an optical waveguide plate for introducing light thereinto, and a driving section provided opposingly to one plate surface of the optical waveguide plate and including a number of actuator elements arranged corresponding to a large number of picture elements, for displaying, on the optical waveguide plate, a picture image corresponding to an image signal by controlling leakage light at a predetermined portion of the optical waveguide plate by controlling displacement action of each of the actuator elements in a direction to make contact or separation with respect to the optical waveguide plate in accordance with an attribute of the image signal to be inputted; the display-driving device comprising a row electrode-driving circuit for selecting the actuator elements at least in one row unit, a column electrode-driving circuit for outputting a data signal-to the selected row, and a signal control circuit for performing gradation control for t

Abstract: The invention relates to a security document with a security element having at least a first layer with gaps in the form of characters or patterns or the like, and a discontinuous magnetic layer in the form of a coding disposed below said first layer. In the areas where the gaps and the magnetic layer overlap, the gaps are also present in the magnetic layer. The invention further relates to a security element and to methods for producing said element and the document.

Abstract: A method of driving a liquid crystal device, which comprises matrix-addressed driving a liquid crystal device comprising a liquid crystal, particularly a ferroelectric liquid crystal, disposed between a pair of substrates and comprising finely distributed domains differing in threshold voltage for use in switching said liquid crystal, said method being a pulse modulation method comprising modulating at least one of pulse voltage and pulse width, a pixel electrode division method, or a time integration method. Also claimed is a liquid crystal device driven by any of said methods. The liquid crystal device provides a further improved analog multiple gray-scale level display, realizes a large-area display at a low cost, and enables drive at full color video rate.

Abstract: A method and apparatus for providing a click surface in a graphical environment, such as a graphical user interface, implemented on a host computer for use with a force feedback interface device. A displayed cursor is controlled by a user-moveable user object, such as a mouse, of the interface device. A click surface is displayed with an associated graphical object, such as a graphical button or an edge of a window, icon, or other object. When the click surface is contacted by the cursor, a force is output opposing movement of the user object in a direction into the click surface and into the graphical object. When the user object has moved to or past a trigger position past the contact with the click surface, a command gesture signal is provided to the host computer indicating that the graphical object has been selected as if a physical input device on the user object, such as a button, has been activated by the user.

Abstract: A Chinese-character input method and system is provided to allow users to input Chinese characters to a data processor with a reduced keyboard, such as a mobile-phone handset with a CCITT-compliant (Consultative Committee in International Telegraphy and Telephony) keyboard having only 12 keys. This Chinese-character input method and system allows the user to input Chinese characters to the data processor through a plurality of virtual keyboards which collectively display a set of phonetic symbols, such as those in the Mandarin Phonetic Symbol Set or the Roman Symbol Set, so that the user can perform the input operation through a pronunciation-based input scheme. The Chinese-character input method and system arranges the virtual keyboards in relational layers in accordance with the Mandarin Phonetic-Symbol Combination Rules or the Chinese Roman-Symbol Combination Rules, so that the user can perform the task of Chinese-character input to the data processor more conveniently and efficiently than the prior art.

Abstract: Disclosed is a pointer assembly apparatus in communication with sensor electronics embedded within a keyboard assembly to sense mechanical movement. The sensor electronics communicates electrical signals indicating direction of movement to a computer system which controls the movement of a graphical element displayed on an attached display monitor. The pointer assembly comprises an extended member coupled to the sensor electronics that extends at least one-half an inch away from a horizontal surface of the keyboard assembly. With this structure, the user may grip the extended member between two finger tips to control movement of the displayed graphical element.

Abstract: A pointer control device includes a housing and a keypad mounted on the housing. A movable guide member extends over the keypad. The movable guide member is operable for being moved over different locations of the keypad. The movable guide member causes a direction control signal to be generated to control a display screen pointer. A pointer control mechanism is positioned along on the movable guide member. The pointer control mechanism is movable along the movable guide member and movement of the pointer control mechanism provides a direction control for the display screen pointer. The housing unit may be a remote control unit with a set of function keys operable to select one of a plurality of modes of operation of a computer system. The function keys may be operable to select a television mode, network communication mode or a video cassette recorder mode. The keypad over which the pointer control mechanism move may be a typewriter style keypad on the remote control.

Abstract: The present invention features a tiled, flat-panel, color display that has a color-correction capability. The display is a tiled mosaic of individual display tiles, such as AMLCDs. Column and row inputs that are typically provided for a single display tile system are distributed over a plurality of display tiles. The color purity is achieved for the display by sorting the tiles into groups, matching their color coordinates, and correcting non-uniformities optically (e.g., by using a graded neutral density filter having a grading function being the inverse of the brightness distribution non-uniformities) and/or electronically. Then, each individual tile in the mosaic is color-corrected via a multiplexed, controller/driver circuit.

Abstract: In relation to a light emitting flat panel device used as a back light for monocolor or multicolor image display, or for illunmination or decoration uses, a very thin and low power consumed light emitting flat panel device (including uniform light emitting flat panel device) which able to emit monocolor or multicolor light from numerous dot type or line type light emission parts is offered in cheap price. It is composed of an exterior board 1 integrated with multi or single light source (LED, etc.), light guide routes 2, light deviding routes 3, and dot type or line type light emittig parts 8, with optical scattered film 12 on front face of the light emitting flat panel of the said exterior board 1.