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| Number | Title | Issue Date |
| 5543821 | Track ball mounted on keyboard An improved track ball which can be conveniently manipulated with a single hand is disclosed. The track ball protrudes through a circular opening in a housing, with the top edge of the housing having a rounded switch. The switch can thus be manipulated wi... | 08/06/1996 |
| 5528265 | Orientation-operated cursor control device An orientation-operated cursor control device having a housing which is hand-holdable by a user. The housing rotatably carries a orientation maintaining member having a center of rotation which is offset from a center of gravity. An encoder generates inpu... | 06/18/1996 |
| 5528257 | Display device A display device is composed of a liquid crystal display panel, having modulating characteristics in which a relationship between a transmittance and a drive voltage depends on the direction of a change in the drive voltage, for modulating source light in... | 06/18/1996 |
| 5515083 | Touch screen having reduced sensitivity to spurious selections A touch screen assembly including a molded cover and base is described. A mounting board is sandwiched between the cover and the base and supports a plurality of LEDs and detectors. Cylindrical guides corresponding to each of the LEDs and detectors are fo... | 05/07/1996 |
| 5508717 | Computer pointing device with dynamic sensitivity A pointing device, such as a mouse, for a computer system detects when a pointer controlled by the mouse is within a control zone of a display (e.g., and icon). When it is, the speed factor for the mouse is reduced making it easier for the user to hit an ... | 04/16/1996 |
| 5508719 | Pressure-actuated pointing device A pressure-actuated pointing device (PAPD), especially adapted for application in a personal, laptop, or notebook computer, is finger-activated and is used to control the displacement of a cursor on a graphics screen. The PAPD includes at least one rigid ... | 04/16/1996 |
| 5504497 | Method and device using electron beam to scan for matrix panel display A new scanning method and device for matrix panel display for using electron beam to scan comprising the steps: connecting each anode of dc matrix display panel to the display supply's anode via a switch cell whose status is controlled by electron beam, u... | 04/02/1996 |
| 5502456 | Display apparatus for vehicles The display apparatus for vehicles being reduced in reflection at the external light suppression prisms disposed on the surface of the display device and providing a bright display image, in which included are the display device and the external light sup... | 03/26/1996 |
| 5500653 | Character data writing device A display data holding circuit holds character data, and serially outputs character data. A display data switching circuit inputs character data outputted from the display data holding circuit to a display data holding circuit again, and the display data ... | 03/19/1996 |
| 5499039 | Microkeyer: a microcomputer broadcast video overlay device and method Broadcast standard format video signals such as that adopted by the National Television Standards Committee (NTSC) or the European standard format of Phase Alternating Line (PAL) and some broadcast "compatible" video signals are used as inputs to a microk... | 03/12/1996 |
| 5497170 | Headup display apparatus A headup display apparatus consists of a projection optical system unit installed in the dashboard of a car and a reflection member on the windshield. The projection optical system unit contains an indicator and an off-axis reflective hologram which refle... | 03/05/1996 |
| 5495266 | Still picture display apparatus and external storage device used therein A still picture display apparatus displays a still picture in which characters each composed of combination of a predetermined number of dots on a raster scan monitor in accordance with character data and program data both stored in an external storage de... | 02/27/1996 |
| 5489924 | Computer and display apparatus with input function A computer or a display apparatus with an input function which is of simple construction and has high operability for touch input or pen input. A system body, a cover unit having a display panel with an input function on one side, and connection means suc... | 02/06/1996 |
| 5485177 | Matrix display device with write-in facility An active matrix liquid crystal display device in which an array of picture elements which include respective switching means, e.g. TFTs, are driven a row at a time by drive signals supplied via a set of row and a set of column address conductors. The dev... | 01/16/1996 |
| 5483257 | Background picture display apparatus and external storage unit used therefor A background picture display apparatus includes a microprocessor and an external storage unit, and dot data, character designating data and mode data are programmed in advance in a ROM in the external storage unit. Character designating data constituting ... | 01/09/1996 |
| 5473346 | Data input device and method A data input device and method for producing signals corresponding to symbols, comprises: at least one manually actuatable switch having a home state and manually actuatable from the home state to one of a set of first states and manually actuatable from ... | 12/05/1995 |
| 5469192 | Method and apparatus for increasing the functionality of computer system pointing devices by simultaneous actuation of buttons thereon Method and apparatus for creating a navigation palette in response to simultaneous actuation of any two buttons on a pointing device in a computer system for creating multimedia slide presentations. The navigation palette allows the user to operate on and... | 11/21/1995 |
| 5448263 | Interactive display system 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 ... | 09/05/1995 |
| 5442379 | High speed RAMDAC with reconfigurable color palette A method and apparatus for generating both a true color and fast pseudo color video signals includes the combination of first and second commercially available RAMDACs. Parallel video data representing the red, blue, and green color components of one or m... | 08/15/1995 |
| 5442376 | Handling multiple command recognition inputs in a multi-tasking graphical environment A method and system to recognize input events from a plurality of input devices. Each input device is coupled to a device driver or similar device specific code and a recognition provider. Upon attachment to the system, the recognition provider registers ... | 08/15/1995 |
| 5430458 | System and method for eliminating flicker in displays addressed at low frame rates A method and system are described for reducing flicker in a display panel. The method comprises the steps of sequentially addressing rows of pixels in the panel, each addressed row location made active by applied address signals during a row address perio... | 07/04/1995 |
| 5420608 | Frame buffer organization and control for real-time image decompression A display system is described which includes storage for receiving a compressed pixel image manifesting at least a pair of encoded colors and a bit MASK that defines which pixels of a pixel subset of the pixel image receive one of the colors. The system c... | 05/30/1995 |
| 5408252 | Active matrix-type display device having a reduced number of data bus lines and generating no shift voltage In an active matrix-type display device, two pixel electrodes of cells neighboring in the direction of scan bus lines are connected to the same data bus line, and these two cells are independently controlled by the time division technique. When an address... | 04/18/1995 |
| 5404150 | Liquid crystal display apparatus In order to improve the contrast of a liquid crystal display device by the voltage equalization method, scanning side electrodes totaling D in number are scanned in line sequential fashion while applying a voltage between each selected scanning side elect... | 04/04/1995 |
| 5402114 | City bus line enquiry machine A city bus line enquiry machine includes a diode selector circuit, which includes a plurality of key switches marked with respective names of bus stops and a plurality of light emitting diodes marked with respective bus line codes and connected to the key... | 03/28/1995 |
| 5402141 | Multigap liquid crystal color display with reduced image retention and flicker A multigap liquid crystal color display having RED, GREEN and BLUE pixels with TFT activating transistors and with the pixels being constructed and arranged so that the offset voltages at the RED, GREEN and BLUE pixels induced by the gate pulses applied t... | 03/28/1995 |
| 5394172 | VRAM having isolated array sections for providing write functions that will not affect other array sections A video RAM having isolated array sections for providing write function that will not affect other array sections. The whole VRAM memory array does not have to be completely read before writing new pixel information to particular array section. At least t... | 02/28/1995 |
| 5389948 | Dithering circuit and method A display device with improved color and grey scale capability employs an improved time dependent dithering technique. In the display device, each pixel is controlled so as to be illuminated only a certain number of times during a fixed display time perio... | 02/14/1995 |
| 5389951 | Liquid crystal display integrated with hall effect pointing device A liquid crystal display (LCD) is constructed in layers including an integrated circuit layer containing thin film transistors (TFTs) for controlling activation of individual liquid crystal cells, and selectively actuatable Hall effect elements (HEEs) for... | 02/14/1995 |
| 5381160 | See-through digitizer with clear conductive grid A combined display and electromagnetic digitizing input device for pen-driven computers. There is a graphics display panel having a viewing surface and a back surface. A first grid of parallel transparent conductors for connection to electromagnetic digit... | 01/10/1995 |
| 5371512 | Background picture display apparatus and external storage used therefor A background picture display apparatus includes a microprocessor and an external storage unit, and dot data, character designating data and mode data are programmed in advance in a ROM in the external storage unit. Character designating data constituting ... | 12/06/1994 |
| 5367634 | Display method, control circuit for the same and display device There is disclosed a display system for outputting image data of a bit map to be displayed on a raster scan type display and a pattern of font corresponding to a code of a character, symbol or graphics having the predetermined code assigned thereto to the... | 11/22/1994 |
| 5361083 | Data input device and method A data input device and method for producing signals corresponding to symbols, comprises: at least one manually actuatable switch having a home state and manually actuatable from the home state to one of a set of first states and manually actuatable from ... | 11/01/1994 |
| 5357263 | Display instrument for aircraft for showing the aircraft orientation, particularly the rolling and pitching position or the flight path angle A display system for aircraft for showing the attitude, particularly the rolling and pitching position or the flight path angle, comprising a windshield projection device (HUD "HEAD-UP DISPLAY") with devices for generating and displaying an airplane symbo... | 10/18/1994 |
| 5341152 | Input device for CAD Under a transparent board-like digitizer, a screen of the same size as that of the digitizer is positioned. Scenes of a display device is shown on the screen. A co-ordinates standard of the digitizer is set to be identical with that of the screen. Consequ... | 08/23/1994 |
| 5337069 | Still picture display apparatus and external storage device used therein A still picture display apparatus displays a still picture in which characters each composed of combination of a predetermined number of dots on a raster scan monitor in accordance with character data and program data both stored in an external storage de... | 08/09/1994 |
| 5337070 | Display and the method of driving the same A method of driving a gray scale and a drive circuit therefor are provided in which the simplification and reduction of the operating speed of a circuit for generating display voltages in a matrix display device are promoted, and low cost and multi-color ... | 08/09/1994 |
| 5323175 | Screen display element In order to reduce the capacity of a character ROM without reducing the character information, n-bit bit pattern data and sequence data having information necessary for composing n-bit m components are stored in first memory means (character ROM). Second ... | 06/21/1994 |
| 5323143 | Liquid crystal panel and liquid crystal display device A liquid crystal panel, and a device and a method using the panel for displaying alphanumeric characters. The inventive liquid crystal panel has a structure that groups of display segments are arranged as display units; each of the groups including twenty... | 06/21/1994 |
| 5321417 | Visual display panel A light transmitting, visual display panel for use as a sign or message board and comprised of a plurality of closely adjacent, rectangular modules, each of which includes a closed, vertically disposed housing having top, bottom, side and back walls, and ... | 06/14/1994 |
