Abstract: A liquid crystal display device includes a source device that outputs image data and a sink device that performs a displaying operation based on the image data. The source device changes a frame rate of an image frame composing the image data while the displaying operation is performed. The sink device changes a frame rate of a panel driving frame for the displaying operation by adjusting a vertical blank period of the panel driving frame as the frame rate of the image frame is changed. Here, the sink device adjusts a common voltage applied to a display panel included in the sink device during a display operation of an individual frame, in accordance with the frame rate of the panel driving frame.

Abstract: A method or system can be used with an aircraft or other vehicle. The system can include or the method can use a head up display for integrating views of conformally mapped symbols and a first image from at least one image source in an environment. The head up display includes a computer and a combiner configured to provide a second image in response to the computer. The second image includes the conformally mapped symbols and a window for viewing the first image on the image source.

Abstract: A method or system can be used with an aircraft or other vehicle. The system can include or the method can use a head up display for integrating views of conformally mapped symbols and a first image from at least one image source in an environment. The head up display includes a computer and a combiner configured to provide a second image in response to the computer. The second image includes the conformally mapped symbols and a window for viewing the first image on the image source.

Abstract: A substantially self-contained digital instrumentation module (30) for fixed and rotary wing aircraft provides flight and other situational information, such as attitude, altitude, airspeed, and slip information, during normal aircraft operation or during emergencies, such as a failure of the aircraft's primary instrumentation. The module (30) can be mounted in any of various possible orientations. It includes redundant memories (38,40,50,52) to preserve back-up copies of software and settings during upgrades and changes. It partitions certified software from non-certified software. It can receive software upgrades and settings changes via a common portable memory device. It can automatically calculate and synchronize barometric pressure with the aircraft's primary instrumentation. It also allows for creating a customizable dimming curve (220,222), and for creating customizable range markings (114).

Abstract: Integrated pulse shaping biasing circuitry for a radio frequency (RF) power amplifier includes a square wave signal generator and an inverted ramp signal generator. The square wave signal generator and the inverted ramp signal generator are coupled in parallel between an input node and current summation circuitry. The square wave signal generator generates a square wave signal. The inverted ramp signal generator generates an inverted ramp signal. The current summation circuitry receives the generated square wave signal and the inverted ramp signal, and combines the signals to generate a pulse shaped biasing signal for an RF power amplifier. The square wave signal generator, the inverted ramp signal generator, and the current summation circuitry are monolithically integrated on a single semiconductor die.

Abstract: A method for controlling a micro-mirror, having the following: generating a first control signal which encodes a tilting motion of the micro-mirror about a first tilt axis, at a first frequency; generating a second control signal which encodes a tilting motion of the micro-mirror about a second tilt axis which is perpendicular to the first tilt axis, at a second frequency which is lower than the first frequency; modulating the second control signal by binary modulation of the second control signal, at the first frequency; and controlling force coupling elements of the micro-mirror, using the modulated second control signal and the first control signal.

Abstract: Methods of performing stroke-to-raster video conversion having leading-edge error correction and/or falling-edge error correction are provided. Incoming data is pipelined before being written into a frame buffer. This allows each sample of data to be manipulated based on information obtained in samples that occur both before and after it. Highly accurate digital conversion of stroke video into a raster format having significantly reduced or eliminated noise and stray pixels from the video is therefore achieved.

Abstract: An LCD display design system and method are disclosed. The method includes performing operations by a variety of operation modules after initial parameters are input and an operation type is selected, so as to generate operation results and transfer the operation results to an integration module; integrating the operation results by an integration module to generate a correspondence relation such as an operation window, a compare-table or an equation, and further transferring the operation results and the correspondence relation to an output module such that the output module can display performance variations of a variety of designs corresponding to the different initial parameters. Therefore, the present invention provides a user with a convenient way to obtain optimal design parameters for designing a display pixel circuit.

Abstract: Method and arrangement for capturing and automatically formatting video signals in both synchronized and deflection driven forms in which a single real-time capture module is provided including three input channels for receiving the video signals, three analog to digital converters for processing the video signals and three dynamic memories. Data from the converters is stored in the three dynamic memories. A line location look-up table is generated during the storage of data which holds the starting address of the stored lines of synchronized video. A video signal is then generated by addressing the line location look-up table.

Abstract: A method of compensating for distortion errors within a head-up display by mapping default pixel locations within a control environment, storing the default pixel locations to a storing means, recalling the stored default pixel locations while the head-up display is operational, and adjusting the head-up display unit to achieve the default pixel locations.

Abstract: An apparatus for adjusting a horizontal position of a video display appliance in which a display image is put in the center of a monitor screen. The apparatus includes a comparative circuit, a horizontal correction circuit and a deflection circuit. The comparative circuit detects an overlap signal representing that a horizontal flyback pulse and a video signal are overlapped. The horizontal correction circuit calculates a mean value of first and second horizontal values and transmits the mean value to the deflection circuit. The deflection circuit adjusts the horizontal position using the mean value as an adjustment value to put the display image in the middle of the monitor screen.

Abstract: A monitor interface cable for transmitting display data and command data between a computer system and a display monitor preferably including a microcontroller. The monitor interface cable enables both display and command data to be transmitted simultaneously from the computer system to the display monitor.

Abstract: A raster center control circuit for a CRT-type display device that automatically determines a correct horizontal center position of a raster, regardless of a horizontal sync frequency input from a video card. The raster center control circuit includes a horizontal deflection circuit, electrically connected to a horizontal deflection yoke, to supply the horizontal deflection yoke with a parabolic wave signal used to determine a horizontal center position of the raster. A memory device stores predetermined values for raster control according to horizontal sync signal frequencies. A microprocessor determines a frequency of a horizontal sync signal and generates a raster control signal by converting one of the predetermined values stored in the memory device into a raster control signal according to the predetermined frequency.

Abstract: An apparatus for converting analog stroke display signals representing electron beam generated stroke traces into raster display information for producing a raster-scan image display. The apparatus includes a sampling circuit for sampling the analog stroke display signals to produce pixel data representing sub-pixel locations covered by the stroke traces. A frame buffer is coupled to the sampling circuit to temporarily store pixel data. A filter is coupled to the frame buffer for calculating brightness of pixels based upon the amount of coverage of the pixels by a stroke trace. In addition, a raster-scan display device is coupled to the filter for receiving the pixel data from the filter to produce a raster-scan image.

Abstract: An apparatus and a method for correcting a distorted image is capable of correcting an optical distortion of an image and misconvergence by prewarping an inputted image without using a convergence yoke, and an image displayer using the same. The apparatus for correcting an image distortion for an image displayer in which an image signal is inputted to display an image on a screen and an image distortion is corrected, includes: a reference image generator for generating a predetermined reference image; a camera for inputting the reference image and photographing an image outputted on the screen; and a distortion information extracting unit for comparing the photographed image outputted from the camera and the reference image outputted from the reference image generator, and generating distortion correction information to correct a distortion of the photographed image in case that the image has been distorted.

Abstract: A stabilizing circuit for stabilizing a horizontal transistor of a video display device. The stabilizing circuit includes a transient state detector for detecting a transient state of a phase locked loop circuit in a horizontal drive circuit due to a change in an operation mode of a video card in a computer system. A micro-computer outputs vertical and horizontal synchronous signals with frequencies before the change in the operation mode of the video card when the transient state detector detects the transient state of the phase locked loop circuit. The transient state detector detects the transient state of the phase locked loop circuit according to a direct current level variation based on a phase difference between a horizontal synchronous signal from the micro-computer and a horizontal drive signal from the phase locked loop circuit.

Abstract: An interactive video computer system with a light sensitive peripheral device having a photosensitive transducer operating in conjunction with a personal computer platform. The gun or pen-shaped light-sensitive device is connected to a peripheral adapter coupled between the computer and a video monitor. The peripheral adapter captures the horizontal and vertical synchronization signals from the video adapter card in the computer and sends them to the light sensitive peripheral device so that processing circuitry therein can generate a peripheral position signal indicative of the position of the field of view of the photosensitive transducer relative to the screen. The light sensitive peripheral device also has means for transmitting the peripheral position signal to the computer means for further processing. This allows a light gun or pen to be used with a conventional personal computer without having to modify the computer with additional circuit boards and operating system changes.

Abstract: A device and method for protecting a recording head in an ink jet recording apparatus. If no print command is detected at an idle state in which a power source of the ink jet recording apparatus is turned on, a head driving voltage for driving the recording head is cut off. Moreover, if there is no print data upon receiving a print command, the head driving voltage is cut off.

Abstract: A device for synchronizing a power drive signal of a monitor, and a method therefor.

Abstract: A sound control circuit in a display device includes a microcomputer for generating variable signals corresponding to the amount changed in duty cycle of pulse width modulation output when a sound function key is selected. A sound amplifier control circuit is for controlling sound output through a speaker based on control signals such as voice signal output level and sound mute generated by the microcomputer. A sound output unit generates sound after changing input sound based on the output signal generated by the sound amplifier control circuit. A multiplexer turns on a light emitting diode and switching a microphone according to the control signal generated by the microcomputer.

Abstract: A monitor control device for use in a CRT-type of monitor which receives video signals and synchronizing signals from a host computer and provides a visual display of information on a screen.

Abstract: A method of calculating beam landing errors in an electronic display device having color phosphor elements and electron guns to generate electron beams to impinge on corresponding phosphor elements require a magnetic field to be generated to deflect an electron beam relative to the corresponding phosphor element on which the electron beam is to impinge. The intensity of light emitted by the phosphor elements in the measurement area is measured as the electron beam impinges thereon. The polarity of the magnetic field is reversed and the above step is repeated. Thereafter, the magnitude of the magnetic field is changed and the above two steps are repeated thereby to measure at least two different light intensities resulting from electron beam influenced by each polarity magnetic field. The at least two different light intensities resulting from electron beams influenced by each polarity magnetic field are then approximated with straight lines and an intersection point of the straight lines is determined.

Abstract: In a display monitor, a horizontal synchronization signal having a horizontal scanning frequency is received by a first circuit. A vertical synchronization signal having a vertical scanning frequency is received by a second circuit. A moire correction signal that is proportional to a horizontal resolution of the displayed image is generated by dividing the horizontal scanning frequency by the vertical scanning frequency.

Abstract: Improved methods and apparatus for monitoring the delivery of radio frequency (RF) energy from electrodes disposed in tissue for inducing hyperthermia and other purposes. In one form, an impedance display of a power supply comprises an array of discrete light elements, where the number of light elements illuminated increases in response to a percentage increase in calculated impedance. The array of light elements is typically arranged in a non-linear pattern where a left hand portion of the array extends horizontally while a right hand portion extends upwardly. The display allows an operator to visually monitor abrupt increases in impedance between an RF instrument and a target tissue. Such increases are used to determine acceptable power ranges to achieve a maximum sustainable delivery of radio frequency energy to the tissue consistent with complete, rapid, and uniform heating of the tissue.

Abstract: A color display device including a shadow mask and a correction deflection system for correcting landing-errors. The correction deflection system comprises first and second correction deflection devices which are arranged one behind the other in the direction of the electron beams and are energizable in opposite senses so that the first correction deflection device generates a dipole field deflecting the three electron beams away from the longitudinal tube axis, and the second correction deflection device generates a dipole field deflecting the three electron beams towards the longitudinal tube axis, or conversely.

Abstract: In order to compensate for currents which are induced in a convergence yoke (16) by a deflection yoke (14), a pulse of current is injected into an amplifier (26) which receives the convergence waveform (from 28) so as to correct or compensate for the induced current. One way of generating the compensating pulse is by delaying a horizontal retrace pulse (36).

Abstract: An image signal display device includes a program data readout circuit by which at least one second adjustment data, not to be adjusted, takes a proper value relative to a first adjustment data, to be adjusted, in accordance with a predetermined relational expression. A data calculating circuit calculates the second adjustment data, and a data changing circuit changes the second adjustment data together with the first adjustment data. A memory stores coefficient data of the relational expression and a digital-to-analog convertor converts an output signal read out from the memory into an analog signal that is fed to a display device for display as an image.

Abstract: An image signal display device includes program data readout circuitry by which at least one second adjustment data not to be adjusted takes a proper value relative to a first adjustment data to be adjusted, in accordance with a predetermined relational expression. Data calculating circuitry is provided to calculate the second adjustment data in accordance with the predetermined relational expression, in response to a change in the first adjustment data. Data changing circuitry is provided to change the second adjustment data together with the first adjustment data. A memory is provided to store at least a coefficient data of the relational expression, wherein the memory can be read out from and written to. A digital/analog conversion circuit is provided to convert an output signal from the memory into an analog signal. Additionally, a display is provided to represent an output signal from the digital/analog conversion circuit as an image.

Abstract: A sound image display apparatus displays a sound image waveform representing a sound image produced by a multi-channel surround audio signal in a readily visible form. The sound image display apparatus includes a scaling section which has a variable gain calculator. The calculator determines the variable gain commonly applied to the X-axis and Y-axis components for displaying a sound image on a limited space of the screen of a display.

Abstract: Transmitting via color signals or vertical signals to control a computer's display monitor using software adjustments of the display parameters. A user can vary the display parameters including, for example, the contrast, brightness, horizontal and vertical size and position, inter alia, and transmit other commands and other data using codes transmitted with the color codes, or alternatively, with the vertical synchronization pulses.

Abstract: A monolithically integrated, micro-fabricated optical device for use in photonic applications has at least one waveguide surface configuration which cannot be fabricated by binary processing. The optical device comprises a plurality of layers of substrate materials. The material in at least one layer has an index of refraction different from the index of retraction of the material in an adjacent layer. A waveguide surface is formed at an interface between the layers and has a configuration fabricated by use of a gray scale mask.

Abstract: A method and apparatus of calibrating electronic scales for the horizontal axis of an oscilloscope is provided. For each of two electronic scales or cursors, output voltages of a horizontal deflection circuit are generated. A measurement is made to determine a time interval in which the voltage of a sweep waveform, generated by a sweep waveform generator and appearing at the output of the horizontal deflection circuit, passes the two output voltages. The slope of the sweep waveform generated by the sweep waveform generator is adjusted such that the time interval coincides with a target time interval.

Abstract: An adaptive crosshatch signal generator includes a frequency detector for detecting a horizontal scanning frequency, a square calculator supplied with the detected output of the frequency detector, and a variable pulse width multivibrator controlled to have an output pulse width substantially in inverse proportion to the squared output. Longitudinal lines of a crosshatch signal are formed by the output pulses of the multivibrator. The crosshatch signal has a longitudinal line width which is always substantially equivalent to the distance between adjacent scanning lines and is generated by using a simplified configuration irrespective of input signal format.

Abstract: Cathode ray tube display apparatus comprises a cathode ray tube display screen for displaying successive frames of a non-interlaced video image in response to excitation by at least one raster-scanned electron beam. A line timebase circuit sequentially addresses each electron beam to successive pixels on the screen in a line of a raster in response to a line timebase sync signal. A frame timebase circuit sequentially addresses each electron beam to successive lines of the raster in response to a frame timebase sync signal. The frame timebase circuit comprises means for offsetting successive frames of the video image in a direction transverse of the lines of the raster by a distance less than the spacing of adjacent lines of the raster. Gaps between adjacent pixels on successive lines of the raster are made invisible to the viewer because the persistence of viewer's eye effectively integrates the image content of successive frames.

Abstract: A heads-up display (50) for an aircraft includes a digital image generator (52), a cathode ray tube (CRT) (54) and an optical system (56) which projects an image (58) formed on the CRT screen (54a) indicating the status of the aircraft operation onto a holographic mirror combiner (60) at a slant angle. The combiner (60) is transparent to the pilot's direct view through the aircraft windshield, but produces a reflected image of the CRT screen (54a) which is superimposed on the direct view. Pincushion distortion in the CRT (54) and geometric distortion caused by the slant projection angle are corrected by a digital look-up table memory (82, 84) which alters the initially orthogonal CRT horizontal and vertical deflection signals (Vh,Vv) in a manner which is the inverse of the distortion such that the image (58) on the combiner (60) as viewed by the pilot appears undistorted.

Abstract: A self-diagnostic arrangement for a video display apparatus and method effectuating the same is disclosed. The apparatus according to the present invention includes a cable connector, amplifiers and a cathode ray tube and comprises a microprocessor storing information on a display status, for selectively switching signals to generate horizontal and vertical sync signals for displaying a variety of self-diagnostic displays, an on screen display IC for supplying a blanking signal and a video signal correspondingly responsive to information supplied from the microprocessor and a H/V deflection circuit for supplying on screen display video. signals to the CRT. There is also provided a method of self-diagnosis, which comprises the steps of generating internal horizontal and vertical sync.signals sync signals of predetermined frequency levels and displaying self-diagnostic screens representing video component colors and a display status.