Abstract: A display controller provides multiple different resolutions by selectively enabling different combinations of shift registers between the frame buffer and video look-up tables (VLTs). The VLTs are partitioned, with different partitions being programmed identically in accordance with the values of only the number of address bits which will be active from the shift registers at any one time.

Abstract: A brake control system is described that prevents a wheel lockup condition by identifying the brake pressure that produces the maximum possible braking effort during each brake pressure application period and applying a predetermined fraction of the identified pressure after an incipient wheel lockup condition is sensed. The predetermined fraction provides for adaptive adjustment of the brake pressure if the identified brake pressure is in error until a pressure is applied that produces substantially the maximum possible braking effort.

Abstract: A VLSI graphics display image buffer which enables the graphics display system of Fuchs U.S. Pat. No. 4,590,465 to be economically realized. According to the present invention, the X and Y multiplier trees disclosed in Fuchs U.S. Pat. No. 4,590,465 can be combined into a single tree and connected to an IC memory grid of conventional design. Special memory chips of this design are then much like conventional RAM chips with only a small amount of additional logic circuitry. However, the standard grid of memory cells on such a chip is organized so that each row of memory cells corresponds to the different bits of the single pixel, whereas each column is the corresponding bit in every pixel. Each output of the X-Y multiplier tree is then available to the circuitry associated with a particular pixel and its row of memory cells. These VLSI chips can be organized so that the system can be implemented by a set of identical chips that need no special interconnection.

Abstract: There is disclosed a display control device having plural memories for storing information, an address unit for generating an address signal to select one of said plural memories, said address unit comprising an address memory for storing said address signal, an output device connected to said address unit and adapted to read said information from one of said plural memories in response to said address signal stored in said address memory, and a display connected to said output device for displaying said information supplied by said output device. None of said memories stores an alarm message which is displayed during overflow, for example.

Abstract: This invention is concerned with systems that create video images. Previously these systems have been limited to ones which create images of television type resolution, however, the systems of this invention may produce an image of higher resolution. The operator draws on a touch tablet and chooses a color and implement type and a line is produced which appears on a screen in approximately real time. At the same time a corresponding line is being produced and written in at high resolution to a large frame store. The high resolution line will be produced at a slower rate than the line to be viewed and so a buffer store is provided for incoming signals. The high resolution image may be read to a print scanner or stored on a disc store.

Abstract: On-line verification apparatus of a display generation system comprises a memory which has a display portion and an inactive display portion, the display portion storing display information, and the inactive display portion storing test data. Scan logic controls a monitor, the scan logic accessing the memory at a predetermined location corresponding to the position control signals. A generator generates display control information to provide information control signals to the scan beam thereby providing the visual display corresponding to the display information stored in the display portion of the memory. A register stores display control information generated from the test data stored in the inactive display portion of the memory during a retrace period. The display control information stored in the register corresponding to the test data is compared to an expected result, during the retrace period, thereby verifying on-line that the display generation system is functioning correctly.

Abstract: A display member (10) comprising a housing (14) having a chamber (12) with a viewing face (16) and a lamina member (24) movably mounted within the chamber (12) to be movable into a first position in which one face (26) of the member (22) is in face to face contact with the viewing face (16) and a second position in which the one face (26) of the member (24) is out of contact with the viewing face (16) and the other face (25) is in face to face with a rear face (15) of the chamber (12) spaced rearwardly from the viewing face (16), a drive (22,20) being provided to produce an attractive and/or repulsive force between the housing (14) and the member (24) to move the member (24) from the first or second position to the other position wherein no external energy need be provided to maintain the member (24) in the first or second position, an opaque fluid filling the chamber.

Abstract: A control circuit is provided for an alternating type plasma display panel, comprising integrated circuits which are used for the first and second electrode arrays of the panel. In the first array, the integrated circuits participate in producing selective signals and transmit the reference voltage of the sustaining signals. In the second array, the integrated circuits participate in producing selective signals, and transmit the square wave voltage of the sustaining signals and their reference voltage is floating, that is to say that it follows the sustaining signals and, during production of the selective signals, it follows the lowest potential that is possible to apply to the electrodes.

Abstract: The process is based on the time-evolutive nature of each of the elements for previously determining a subdivision of the stored image into separate zones, corresponding with the distribution of the elements in the image, and for allocating to each zone a given periodic refreshing rate (between one and N image display cycles) adapted to the evolution characteristics of elements included in the zone in question, so that an integral refreshing of the image is obtained every N cycles.

Abstract: Menu item selection is performed in a personal computer system through the use of a mouse device which has means to allow the user to call up onto the display a header block which performs the function of the menu bar and to erase the header block from the screen when menu operations are not required. Multiple menu items can be selected during the same menu session by using a pair of mouse buttons to generate a sequence of selection commands which are utilized by unique system software to accumulate plural item selections without terminating the menu operation.

Abstract: A color display device has a liquid crystal unit for passing therethrough electromagnetic radiation dependent on image information. The color display device also has a light source including electroluminescent materials or fluorescent materials. The electroluminescent materials and the fluorescent materials are essentially the same, but have different light-emitting mechanisms, i.e., electroluminescence and fluorescence. The light source with the electroluminescent materials is used singly or in combination with a color filter and the liquid cystal unit. The light source with the fluorescent materials is combined with a color filter and the liquid crystal unit. When the light source with the fluorescent materials is used, the amounts of the fluorescent materials for emitting lights in red, green, and blue, the light-emitting efficiencies of the fluorescent materials, and the transmissivities of the color filter for the lights in red, green, and blue are determined to meet certain conditions.

Abstract: An AC gas discharge display panel is described which employs the phenomenon of plasma spreading. In the panel, plasma spreading or "coupling" is employed to couple the plasma to an addressed cell to one of a plurality of pixels to be illuminated. The spreading is controlled by assuring that the cell wall voltages are properly related so that the plasma's electrons migrate to a region where the voltages are approximately equal to or more positive than the wall voltages where the plasma originated. Paired sustain electrodes are selectively energized to enable diversion of the coupled plasma to the desired pixel, so that upon subsequent applications of a sustain voltage, the desired pixel is illuminated (or erased) as the case may be.

Abstract: An acoustical visual sound device used for the visual interpretation of a received acoustical or electrical sound signal having a filter for passing the intelligence contained within a band of frequencies contained within the frequency spectrum of a received sound signal, a multistage amplifier which can be of the automatic gain control type, for amplifying the passed intelligence to a sufficient power level to operate an electro visual means connected at the output thereof throughout its operable visual variable range. The device can be used for pleasure when observing, in visual form, music, voice or other sounds. Or, it can be used as a means for identifying the source of a sound. It is operable in the audio range as well as in the range above and below the audio range. It can contain any number of channels, in which one of the channels can be used as a search or beat channel.

Abstract: YA dual clock shift register for use in a computer display system for converting a higher resolution image for a computer screen to a lower resolution image for display on a lower resolution display apparatus. The dual clock shift register includes a first shift register which is used to apportion a second shift register between control by two different clock rates.

Abstract: A character recognition device has an input section having a plurality of touch electrodes. When the human body contacts at least two of the touch electrodes of the plurality of touch electrodes, the contacting capacity components of the touch electrodes are detected by a capacity component detection section. The contacting central point coordinates of the touch electrodes are calculated by calculation sections from the contacting capacity components of the touch electrode thus detected. The character hand-written on the plurality of touch electrodes is recognized as a character by character recognition sections, from the contacting central point coordinates calculated by the calculating sections.

Abstract: An image display apparatus uses a frame memory as an image data storage section for storing original data prior to image processing and a display memory for storing display image data. Image data transfer from the frame memory to the display memory is performed by a memory controller in accordance with a DMA (direct memory access) scheme. The image data transfer is performed through a data conversion memory which is programable under the control of a CPU, thereby performing data conversion as image processing. The data transfer by the memory controller is performed such that at least a desired part of the image data from the frame memory is transferred to the display memory through the data conversion memory in response to an address signal synchronized with a sync signal used for reading out the image data from the display memory and displaying the image data on a display unit.

Abstract: Large scale information display panels made up of basic picture elements running to hundreds, even up several thousand color elements, are useful for being viewed for advertising, transportation information, traffic control, news, weather, finanical data and other information normally generated by computers. The system has capability in alphanumeric and also for color graphics designs in four colors with use of a basic display element with two intersecting planes rotational about an axis at the intersection of the two planes. A three plane element provides for designs in six colors. The basic two plane display has each face of each of the two plane surfaces coated or impregnated with a different color and a single permanent bar magnet is enclosed in one of the plane forms perpendicular to the axis of rotation.

Abstract: An improved light collector, for collecting the light in a plurality of parallel light beams directed across the display surface of a touch panel apparatus and for redirecting it in a direction substantially perpendicular to the light beams for detection by a common detector positioned adjacent one end of the collector, comprises an elongated strip of light transmissive material terminated by a light collection station. A plurality of light reflecting elements is disposed inside and spaced along one side of the strip and each has a transverse dimension small in comparison to cross-section of the strip. The surface of each reflecting element is tilted with respect to the longitudinal axis of the strip. A like plurality of focusing elements is also disposed along the strip and each such element is individually associated with an assigned one of the reflecting elements.

Abstract: A cursor moves at a constant velocity in a constant direction in a display space for displaying a three-dimensional image. When two parameters for representing a direction in a three-dimensional space are entered, the cursor changes its direction according to the entered direction at a rate determined by the entered magnitude. When a parameter for changing the velocity is entered, the cursor velocity is changed. It is not necessary to enter a three-dimensional coordinate to control the cursor to reach the desired position, and the manipulation of the cursor is very much simplified.

Abstract: A pattern write protect system approximates a memory area for data entry with a multiplicity of rectangles and determines when a point for entry is within the window by establishing a relative position of the address point coordinates to the coordinates of the sides of the rectangles. A less than/greater than signal for each address coordinate relative to the sides of each rectangle is derived. These signals are summed and the resulting sum signals are then multiplied to provide an enable gate signal.