Abstract: In liquid crystal display system 10 which has a matrix arrangement of scanning electrode group 12 and data electrode group 13 and in which each electrode group is driven by a pulse like waveform, this is a liquid crystal display system in which a lower level region than the pulse wave peak value is formed in at least one of the rising or the falling portions of the pulse wave which drives at least one of the electrode groups.A liquid crystal display system with a uniform display with extremely little display non-uniformity can be obtained.

Abstract: A scan-aware custom control for use in designing a graphical user interface is capable of being provided with both scanned input from a bar code reading device as well as standard keyboard input when desired by the operator. The scan-aware custom control is implemented by an applications developer in a similar fashion to standard text controls, and has custom properties to allow data entry parameters to be set at the time the interface is designed. The scan-aware custom control reads the custom property values from a preloaded properties file in order to configure the scanner interface in accordance with the desired symbologies to be decoded. The scan-aware custom control is implemented on a graphical user interface resident on a data entry terminal in order to facilitate data entry in both automatic and manual modes of entry.

Abstract: A point type remote control apparatus and method thereof, which can directly move a point to a desired position on a display screen, and thereby select quickly from a menu and provide convenience in use. The present invention comprises a signal transmitter for transmitting a specified pulse signal towards the desired point on the display screen, and a receiver/controller having a plurality of signal receiving sensors positioned around the display screen. The receiver/controller calculates a positional coordinate of a point of the transmitter by converting the intensity differences of the pulse signals received by the signal receiving sensors into phase differences, and displays the point corresponding to the positional coordinate on the display screen. In addition, the present invention comprises a receiver/controller for counting real phase differences of each pulse signal received by the signal receiving sensors.

Abstract: A liquid crystal display driven in multiplex with a plurality of pixels arranged in a matrix comprises a main display, and at least one sub-display located at least partly around the periphery of the main display.

Abstract: A data reformatter/frame memory (112) for efficiently orthogonally reordering a digital data stream. The disclosed reformatter/frame memory (112) is typically used in conjunction with a display device (124) for displaying the digital data, and a display controller (132) for coordinating the transfer of data between the reformatter/frame memory (112) and the display device (124). According to one embodiment, a data reformatter for a video display system includes at least one reformatter memory plane (60). The memory plane (60) comprises an input bus, an m.times.n array of memory cells (80) in communication with the input bus, and an m-bit-wide output bus. The array of memory cells (80) receives and stores m n-bit-wide input data words and outputs n m-bit-wide output data words. Each of the m-bit-wide output data words is comprised of one bit from each of the m n-bit-wide input data words.

Abstract: Red, green and blue pixels of a digitized image are combined to form a single vector that points to three lookup tables translating each pixel to linear Y, I, Q values thereby forming a linear image. The color value of each pixel in the linear image, comprised of Y, I, Q "aim" values, is then sequentially processed to attempt a match to the closest available colors. These three aim values point to respective lookup tables which translate them to three corresponding intermediate numbers which, when summed, point to a larger table mapping them to a number corresponding to the closest color in the predetermined palette. Three lookup tables translate the map number back to the linear space with corresponding mapped Y, I, Q values. The difference between these values and prior aim values constitutes error arising from the finite palette. The error is corrected with opposite error of adjoining pixels by error diffusion techniques.

Abstract: Color information lost in a computer graphics system as a result of encoding by dithering is recovered by passing the encoded data through a filter that has the same effective shape and size as the dither matrix used to encode the data. In a system that employs a dither matrix having 2.sup.N cells, up to N bits of color information, per color component, is recoverable.

Abstract: The compact and ergonomic communications terminal equipped with proximity detection surfaces embodying the invention comprises a screen and command device distributed around the periphery of the screen, the command device comprising two devices for detection on a respective axis of the position of an operator's finger, divided into a plurality of segments assimilable with switch operating keys, the axes of these two detection devices being perpendicular to one another and each disposed facing an edge of the screen. It is notably used inside the cockpit of an aircraft.

Abstract: Device for the dynamic display of information relating to an electronic system of variable configuration and/or composition which uses, on the one hand, an autonomous display module comprising, mounted in a support of small dimensions, a display circuit comprising a display, preferably of the liquid crystal type, driven by a display controller coupled with a status memory and a source of renewable energy connected to the display circuit, and, on the other hand, a means of elaborating, by said system, digital data characterizing it, from both the hardware and software points of view, and a means enabling said data to be transmitted into said status memory, with a view to displaying them on said display. Such a device applies notably to the modular electronics used in aeronautics.

Abstract: A portable electronic work slate unit includes a customizable array of data devices and input/output devices which are selectively integrated in a compact and highly ergonomic structure. Increased operator productivity is accomplished by use of several possible user interface media including a multi-function display and input/output unit including a digitizer, position sensitive screen, and video display panel. Selectively integratable user interface components include a bar code scanner, RF modulator for radio frequency communication, modem, audio input/output, as well as the multi-purpose display. All components are integrated by use of a handle unit which can house a battery as well as removable modules in a manner so as to minimize operator fatigue and discomfort, as well as enhance productivity.

Abstract: A driving device for a display apparatus having excellent contrast and a high display quality without crosstalk and display irregularities, and a driving method for the same are provided. In the driving device, scanning signals and data signals having a plurality of periodical inactive portions in one frame are applied to respective display dots. In the inactive term, a fixed voltage is applied to each of the display dots. The signal applied to the display dot is divided into small terms by the inactive portions, resulting in more high frequency components in a voltage signal applied to the display dot. As a result, the frequency components of a driving signal applied to the display dot are averaged. Further, a complete orthogonal function having 2.sup.r base function series is used, and a desired display data is completely reproduced on the display apparatus by an arithmetic process assuming auxiliary data in accordance with the number of the scanning electrodes.

Abstract: An indicating display for a motor vehicle has an optical collimating element associated with a support element carrying an array of electroluminescent diodes. The collimating element has a rear face which is engaged by the electroluminescent diodes and which is formed in steps into which through holes, each associated with a respective diode, are open.

Abstract: A display controller for controlling the display area used by data on a display unit, having a first setting element that sets a first display size for the display unit, a second setting element that sets a second display size to be used for displaying data, and a control element for outputting display data to the display unit in an area defined by the first and second setting elements whereby data of an equal or lower display resolution is mapped onto the display unit.

Abstract: An image data processing apparatus such as an image synthesizing apparatus that synthesizes an image produced by a computer in accordance with tables stored in pages. A picture data conversion circuit converts picture data of red, blue and green color signals or picture data of luminance and color difference signals to predetermined converted picture data. A page change circuit switches the page of the picture data conversion circuit on the basis of alpha data representing transparency of the color picture data. An image data processing apparatus generates virtual addresses based on predetermined reference addresses in an address space larger than the frame memory addresses for accessing a plurality of frame memories at a low-order bit of the virtual address by selecting and outputting the image data outputted from the plurality of frame memories on the basis of a high-order bit of the virtual address.

Abstract: An on-screen display apparatus for use in a process of picture quality adjustments displayed on a television monitor. The apparatus includes a memory for storing messages which signify the procedure of picture quality adjustments, and a controls circuit for controlling the operation in such a manner as to retrieve the messages from the memory sequentially in accordance with execution of the picture quality adjustments and to display the messages on the monitor. Since the messages are retrieved and displayed on the monitor successively, the picture qualities such as chrome, hue, brightness and contrast levels can be adjusted with facility through mere manipulation of keys by an operator.

Abstract: Switched capacitor analog circuits (such as integrators, amplifiers and digital-to-analog converters) constructed from polysilicon thin film transistors and capacitors are disclosed. The circuits are commonly implemented using conventional single crystal CMOS technologies, but this is the first time they have been realized using polysilicon TFT CMOS. The performance of the circuits is inevitably worse than that of conventional single crystal CMOS devices, but is nevertheless adequate for many large area applications. The circuits can be fabricated on large area substrates and integrated with, for example, flat panel displays, pagewidth optical scan arrays, or pagewidth printheads, offering improvements in the functionality and performance of those devices.

Abstract: A multi-state, one-button computer mouse includes a housing movable over a reference surface, a tracking mechanism coupled to the housing to provide positional coordinates relative to the reference surface, a single button, and a switch mechanism coupled to the button. The single button is movable between a base position, a first button position, and a second button position by a force exerted on the button. The button is biased to the base position in absence of the force. The switch mechanism is coupled to the button such that it activates a first switch at the first button position and a second switch at the second button position. A computer system with the pointing device includes a processing unit, a visual display, a pointing device as described above, and a computer implemented process for indicating on the visual display when the button of the pointing device is in a locked button mode.

Abstract: A resetting circuit for a device including a plurality of cells adapted to be reset, the resetting circuit including a reference voltage source for providing a reference voltage, connecting paths for connecting the cells to the reference voltage source for resetting the cells, and altering means for altering during a resetting period, an impedance of the connecting paths to an impedance of lower value.

Abstract: In a flat display, an address current detecting unit detects a value of address current consumed during each display frame, a comparator compares the address current value detected by the address current detecting unit with a given reference value, and an address-frequency control unit controls address frequencies related to the display frame in response to the output of the comparator.

Abstract: A method for deleting objects displayed on the screen of a display assembly of a pointer based computer system is described. The method includes the steps of detecting a pointer created stroke and processing the stroke for gesture recognition. Thereafter, the processed stroke is checked to determine whether it meets the path definition requirements of a scrub gesture. In another step, a determination is made as to whether an object displayed on the screen has been selected. If an object is selected and the processed stroke meets the requirements of a scrub gesture, the selected object is deleted. In a preferred embodiment of the invention, the selected object determining step includes the substep of determining whether any objects were preselected at the time the scrub gesture was made. When no suitable objects are preselected, a determination is made as to whether the scrub gesture substantially overlaps a displayed object. If a displayed object is substantially overlapped, it is selected for deletion.