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| Number | Title | Issue Date |
| 4958151 | Display control circuit In an integrated circuit for arithmetic operation and display control connected to a power source (46) and a liquid crystal display device (45), and energized by the power source, including an arithmetic operation circuit (42) for performing a designated ... | 09/18/1990 |
| 4855727 | Electrochromic display having a dielectric layer An electrochromic display device comprises a pair of first and second, opposed insulative substrates, a layer of electrochromic substance sandwiched between the substrates, a transparent display electrode on the first substrate, and a counter electrode on... | 08/08/1989 |
| 4835532 | Nonaliasing real-time spatial transform image processing system The disclosure relates to a computer controlled imaging system involving a digital image processing and display system which has the ability to compose and construct a display scene from a library of images with sufficient processing speed to permit real-... | 05/30/1989 |
| 4818979 | LUT output for graphics display A scanning display signal generating system for a plurality of planes includes a first look up table addressed by a first set of the planes, and a second look up table addressed by a second set of planes. A logic unit receives the outputs of the tables an... | 04/04/1989 |
| 4818983 | Optical image generator having a spatial light modulator and a display device An optical image generator includes a spatial light modulator and a display device. The spatial light modulator contains a material whose optical property can be changed corresponding to a change in the image pattern of an electronic charge emitted from a... | 04/04/1989 |
| 4816811 | Compliant overlay for use as an optically-based touch-sensitive screen A resilient and deformable touch screen that is adapted to be overlaid on the surface of a CRT screen is formed from a semi-rigid plastic frame attached to a flexible plastic pouch filled with a soft resilient material which adheres to the surface of the ... | 03/28/1989 |
| 4814756 | Video display control system having improved storage of alphanumeric and graphic display data A system for displaying alphanumeric and graphic information on a raster scanned display device, for example, in a teletext system, includes a memory which is updated to change the display. Dynamic changes in the displayed image are provided by assigning ... | 03/21/1989 |
| 4812828 | Video display processor A video display processor (VDP) is connectable to an input control device such as a light pen and a mouse. The VDP comprises a counter circuit which is composed of an X counter and a Y counter. When a mouse mode is selected, X and Y pulse signals are supp... | 03/14/1989 |
| 4806918 | Graphics tablet using a permuted trace ordering scheme A graphics tablet is presented which has an x-y grid of wire traces embedded on it. Drive wires are coupled to the trace wires in both the x-direction and the y-direction. When a stylus is placed in contact with the graphics tablet, the location of a sect... | 02/21/1989 |
| 4806924 | Method and system for displaying information The present invention relates to an advertising information display system comprising a device for starting the display of the advertising information on certain elements of the display panels; a computer device receiving information from the output of th... | 02/21/1989 |
| 4806922 | Display device utilizing a plurality of NCAP liquid crystal modules A liquid crystal display comprising a plurality of modules wherein each module includes a nematic curvilinearly aligned phases liquid crystal material. The modules are positioned adjacent to one another to effect a homogeneous display. Each module may inc... | 02/21/1989 |
| 4806921 | Rasterizer for pattern generator A rasterizer, particularly suited for generating patterns for semiconductor masks and the like is described. An 8×8 array uses RAS, CAS and WE signals in addition to the memory address for accessing the array. A state machine is used to convert the patte... | 02/21/1989 |
| 4804948 | Video display control system A video display control system displays a video image composed of a plurality of display elements on a screen of a video display unit. The system comprises a memory (VRAM) for storing a plurality of color codes each representing at least one display eleme... | 02/14/1989 |
| 4804953 | Redundant conductor structures for thin film FET driven liquid crystal displays Redundancy is provided in the data and gate lines of the liquid crystal display device for improved reliability and greater fabrication yield. The data lines in particular are preferably fabricated in a multilayer structure with two conductive layers sand... | 02/14/1989 |
| 4804951 | Display apparatus and driving method therefor An active matrix-type display device including a plurality of field effect transistors arranged in a matrix, a plurality of gate lines, an apparatus for combining the gate lines in a set of combinations each containing two or more gate lines and for chang... | 02/14/1989 |
| 4803475 | Image display apparatus An image display apparatus including a display memory which is accessed by a central processing unit for controlling input/output traffic of image information and by an image display device such as CRT in a time division multiplex mode. There are further ... | 02/07/1989 |
| 4801932 | Display apparatus A display apparatus using a light-transmitting ceramic having an electrooptic effect. A voltage application head has at least a pair of electrodes which contact the light-transmitting ceramic. The head is driven by a head driver so as to scan across a sur... | 01/31/1989 |
| 4800381 | Electromagnetic indicator device An electromagnetic indicator device which has a plurality of triangle-shaped vanes, asymmetrical in relation to the rotation axis, which are arranged on a plate in the form of a matrix. A polarization magnet is applied to the vane in the vincinity of the ... | 01/24/1989 |
| 4800375 | Four color repetitive sequence matrix array for flat panel displays A four color repetitive sequence matrix array for flat panel displays is formed by establishing a repetitive sequence with pixels of four different colors arranged in the rows of the matrix. The sequence commences with a different color in each row, there... | 01/24/1989 |
| 4800380 | Multi-plane page mode video memory controller A page mode memory controller for a multi-plane color video display providing three bits/pixel corresponding to three page partitioning in each of sixteen 64K dynamic RAMs is described. The three bits/pixel are routed to a color lookup table to provide a ... | 01/24/1989 |
| 4800379 | Image display with movable magnification Apparatus for displaying an image defined by digital data representing the color content of the pixels of the image comprises a monitor; a first store for storing digital data representing an image at low resolution and a second store for storing digital ... | 01/24/1989 |
| 4799263 | Speaking and hearing system for breathing apparatus A speaking and hearing system for respirators, where the apparatus wearer is connected to a respiratory gas supply independent of the ambient air. A suppression, independent of acoustic signals, of the breathing noises of the apparatus wearer is provided ... | 01/17/1989 |
| 4799054 | Mouse operating pad A mouse operating pad to permit high resolution operation of a mouse at a work station. The pad includes a control surface which incorporates a uniform random texture permitting the tracking member to stably rest at any point on the control surface. The c... | 01/17/1989 |
| 4799053 | Color palette having multiplexed color look up table loading The present invention loads color registers of a color look up table in a color palette and recalls color data words from the color registers using only a single set of address and data channels. The color palette operates in two modes. In a normal mode o... | 01/17/1989 |
| 4799056 | Display system having extended raster operation circuitry A display system having a frame buffer comprising a plurality of memory planes, a display device for visually displaying images written into the frame buffer, and a controller for controlling image data operations. The display system is provided with an e... | 01/17/1989 |
| 4797667 | Split screen electrode structure for TFEL panel An electrode structure for an AC matrix-addressed TFEL panel includes top and bottom sets of scanning electrodes, each located in a respective half of the panel, and top and bottom sets of data electrodes extending at right angles to the scanning electrod... | 01/10/1989 |
| 4796027 | Apparatus for data transmission from multiple sources on a single channel Self contained radio transmitting modules are mounted on power conductors at various places along electrical transmission lines. The modules are capable of measuring current, voltage, frequency and power factor (or the Fourier components thereof), the tem... | 01/03/1989 |
| 4796016 | Pixel rounding method and circuit for use in a raster scan display device and a raster scan display device comprising such circuit A pixel rounding method and circuit for bit-map graphics displays. The pixel codes are divided into two groups "high" and "low", and pixels with "high" groups codes are rounded against pixels with "low" group codes. The rounding can be prerounding or post... | 01/03/1989 |
| 4794391 | Display matrix incorporating light-conducting fibers and light-occulting shutters A display matrix incorporates optical fibers to transmit light from light sources to the front of the display. An occulting device is associated with an assembly of fibers to modify the character of the light emitted to the front of the matrix, and a devi... | 12/27/1988 |
| 4794375 | Keyboard crosspoint encoder having pseudo-n-key rollover A crosspoint encoder having a n-key rollover data collection system in which all keystrokes are recognized. A phantom key detection routine detects phantom key conditions and provides for temporary storage of subsequent keystrokes until the phantom condit... | 12/27/1988 |
| 4794387 | Enhanced raster image producing system A unique intra-dot/inter-dot scanning system which gives superior quality speed performance. The intra-dot and inter-dot scanning system is applicable to both serial and line impact dot matrix printers, line and serial thermal printers, ink jet, laser and... | 12/27/1988 |
| 4794388 | Method of and apparatus for controlling a display Information presented on a visual display is varied in content and size through the use of a single operator-manipulated input device. The foregoing is accomplished through the use of a novel command signal generator which includes a pivotally mounted rot... | 12/27/1988 |
| 4794389 | Attribute hierarchy system Attribute hierarchy system including hardware assisted by software for utilizing a stack structure of a multiple-level stack and a plurality of stacks for storing data and attributes. The stack structure provides that only the top of the stack is loaded a... | 12/27/1988 |
| 4794385 | Display arrangement with improved drive A display arrangement (LCD etc.) in which the control voltage range is enlarged by including in the control lines (13a, 13b) additional diodes (14) which are connected to a common point (15). In order to counteract a capacitive by-ef... | 12/27/1988 |
| 4791408 | Keyboard for one-hand operation A data entry device having five keys, not in one plane, is held in and operated by one hand. Each key has two "on" positions and one "off" position. By using a single key or chord of keys to form characters, a surplus of possible combinations is generated... | 12/13/1988 |
| 4789858 | Multifunction switch incorporating NCAP liquid crystal A switch apparatus comprising a nematic curvilinearly aligned phases liquid crystal material located between a pair of electrode means wherein a flexible substrate having a conductive segment formed therein may be positioned in a spaced substantially para... | 12/06/1988 |
| 4789855 | Device for editing document in colors A device for performing colored editing for a document prepared and displayed by a word processor or microcomputer having a word processing function is disclosed which includes a character information storing means for storing information on each of chara... | 12/06/1988 |
| 4788536 | Method of displaying color picture image and apparatus therefor Disclosed are a method of displaying a color picture image and an apparatus therefor, in which there are provided a first memory into which a code of graphic display to be displayed on a picture screen is stored at a position corresponding to a display po... | 11/29/1988 |
| 4786892 | X-Y direction input device having changeable orientation of input axes and switch activation An X-Y direction input device includes a ball, a switchboard carrying push switches, first and second follower rollers rotated by the ball having axes perpendicular to each other, and rotation detecting means which all are enveloped by an outer shell. The... | 11/22/1988 |
| 4785297 | Driver circuit for matrix type display device A drive circuit for producing scanning pulses to successively select row or column conductors of a matrix display device of the type having an active element provided for each display element in the matrix, the drive circuit comprising a shift register ma... | 11/15/1988 |
