Abstract: High-amplitude-resolution graphics for raster-scanned television systems are generated beginning with relatively low-amplitude-resolution sampled data from image memory affording spatial resolution approximately the same as that of the television signal, generally at least as large as that afforded by the number of lines per field and by the video bandwidth used in the television system. The sample-data raster scan used in the television system is converted to the coordinate system used for memory addressing. The whole-number portions of the memory address are used to access addressable sample data at points surrounding the point specified by the complete address including whole-number and fractional portions; and the fractional portions of the address are used to perform an interpolation between or among the accessed sample data.

Abstract: The present invention relates to a novel and unique activated work such as a child's book or a greeting card having at least two turnable pages in juxtaposed relationship and which is formed having a portion thereof that is essentially invisible in a first state but visible in a second state. Electrical signals are coupled to the second portion for selectively and reversibly changing the second portion from the invisible to the visible state when the pages are moved from their juxtaposed relationship.

Abstract: A device for visually displaying alphanumeric characters by means of segments which are individually and selectively switchable between two operating states, one of which corresponds to visual perceptability of the segments themselves.

Abstract: In a display device, a picture element capacitor is connected to a light emitting element provided in each picture element. This picture element capacitor is connected to a signal source through a switching element. The picture element is charged, by the signal source, with a signal charge corresponding to an input signal, through the closure of the switching element during some period of time. The signal charge charged into the picture element capacitor is supplied to the light emitting element, whereby the element emits lights.

Abstract: A device and method for providing a smooth scroll of a display on a cathode ray tube display device having a display area, horizontal deflecting means receiving horizontal drive pulses for effecting horizontal scans, vertical deflecting means receiving vertical drive pulses for moving said video display vertically, and a video input for receiving a video input signal. The device includes a microprocessor having an input and an output. The microprocessor counts, and places on its output, digital signals corresponding to its count. A digital-to-analog converter converts the digital signals to an analog signal. A summing device is connected between the digital-to-analog converter output and the vertical deflecting means of the cathode ray tube display device for summing a vertical deflection pulse and the analog signal output of said digital-to-analog converter, thereby vertically displacing the video input signal of the cathode ray tube display device.

Abstract: A driving system for a display panel wherein a large number of data lines and scan lines are arranged in matrix fashion and wherein a display cell is disposed at each crossing point includes a row drive for supplying a first voltage to row side electrodes through the scan lines, a column drive for supplying a second or a third voltage to column side electrodes through the data lines, and a refreshing drive for supplying a reverse polarity voltage between the electrodes of each display cell after scanning of all the scan lines. The column drive performs a modulation drive by applying the voltages from the data lines selectively to the display cells according to an intended luminescence or non-luminescence of the cells. The row drive performs a write drive by sequentially applying the first voltage to the scan lines. The refreshing drive performs a refreshing operation by applying a predetermined refreshing voltage to the display cells after completion of the modulation and write drives.

Abstract: An X-Y input device comprises a rotatable ball, a first driven roller held in contact with the rotatable ball and rotatable in response to rotation of the rotatable ball, a second driven roller held in contact with the rotatable ball and rotatable in response to rotation of the rotatable ball, the second driven roller having an axis of rotation extending substantially perpendicularly to that of the first driven roller, first rotation detector means for detecting an amount of rotation of the first driven roller, and second rotation detector means for detecting an amount of rotation of the second driven roller.

Abstract: A multiple window display system is provided for displaying data from different applications in a multi-tasking environment. The display system includes plural screen buffers (12.sub.1 to 12.sub.n) for storing character codes and attribute codes of data which may be displayed on the display screen. Task selection means (26) selectively couples the output of a single selected one of the plural screen buffers to the character generator (16) and attribute logic (18) at any given time. Address modification means (20.sub.1 to 20.sub.n, 22.sub.1 to 22.sub.n) permits changes to be made in the display windows. The software driver includes screen control blocks (32), window control blocks (34), presentation space control blocks (36), presentation spaces (38), and a screen matrix (40) in system memory. The presentation spaces (38) receive application data for plural windows of the displayable area. Each window defines the whole or a subset of a corresponding presentation space.

Abstract: A device for setting a numeric display (11) comprises a continuously turnable potentiometer (12) by which the setting area can be repeatedly passed through by turning in the same direction. The potentiometer and the display are connected to a computer (10), preferably a microcomputer. The computer is arranged to repeatedly sense the instantaneous resistance value of the potentiometer or a parameter representing said value. Further, the computer is arranged to store the first one (T.sub.1 high) of a series of measurement values and for each subsequent measurement value (T.sub.2 high) in the series to determine if the difference between the present and the first measurement value exceeds a reference value (T.sub.diff), in which case the display (11) is operated to increase or decrease its value by one step of a predetermined magnitude.

Abstract: A method of oculo-encephalographic communication in which a plurality of optical stimuli provide unique code which can be identified from the EEG of viewer. The code is preferably an M-sequence binary code whereby simultaneous testing can be employed to identify the viewed optical stimulus.A special binary sequence, or M-sequence, is utilized from which a viewed element be identified through use of a response template or sample response as predetermined from the user's encephalogram.

Abstract: A method of driving a matrix type liquid crystal display device which compensates for the distortion of scanning signal and data waveforms caused by resistance and capacitance of the display device electrodes. In one embodiment of this method the timing of the scanning signal is advanced with respect to the timing of the data switching signal by a time determined by the resistor-capacitor time constant of the electrodes and display elements. In another embodiment of this method the switching timing of the scanning signal is delayed with respect to the leading edge of the data signal and the switching timing of the scanning signal is advanced with respect to the trailing edge of the data signal. The delay of the leading edge and the advance of the trailing edge are determined by the resistor-capacitor time constant of the electrode and display elements and the capacitance of the display element, respectively.

Abstract: A display device wherein display is carried out by scanning and a display screen is handled as an aggregation of a plurality of blocks. A display data memory for storing a data to be displayed and a control memory for defining a plurality of split images each comprising one or more blocks are provided in the display device. The display data memory is accessed by an address corresponding to the split image to which the block being scanned belongs, in accordance with the control memory.

Abstract: A data display control arrangement in which apparatus for scrolling lines of data relative to a display area of a data display apparatus (1) comprises means (2) for producing a selectively controllable scrolling action, the means (2) including a transducer device (16) comprising two groups (18A, 18B) respectively including two sets (20,21) (24,25) of elctrical contact tracks 19 and an elastomeric pad which includes a non conductive member 27 is loaded with conductive material, whereby pressure on the member (27) changes the conductivity thereof and in so doing progressively interconnects the tracks of the sets (20,21) (24,25) to produce analogue signals related to extent of pressure. A converter 9 converts the analogue signals to digital signals which are used to control said scrolling.

Abstract: A display device having a display array of m.times.n display elements driven by a static shift register having m.times.n stages respectively corresponding to row and column designations of the display elements. The column lines of the display element array are driven by a first output of the m stages. At the same time, pixel data are supplied to the shift register in accordance with a binary level of an externally supplied select signal. Alternatively, the shift register is shifted in a recursive manner. The row lines of the display element array are scanned in accordance with a count of a clock signal. Select signal lines and clock signal lines are respectively aligned along the row and column directions of a unit panel when plural display arrays as described above are arranged in a matrix form to provide a large-screen display unit. The lines of each display array are sequentially driven in accordance with the supply pattern of the select and clock signals from a corresponding unit driver.

Abstract: An electronic data processing pipeline system and method for processing encoded control points representing graphical illustrations. The pipeline comprises a number of separate micro-programmed circuit cards, each of which are programmed to perform a specific processing operation.A command is first sent to a matrix maker card defining a geometrical transformation to be performed on the graphical illustration. The matrix maker card, together with a matrix multiplier card, then calculates a transformation matrix representing the desired transformation.Electronic representations of control data points are then transmitted to the pipeline for processing. These control points are 3D points comprising both the vertices which terminate linear edges of the illustration and the control points corresponding to curved edges of the illustration. Each of the points is encoded to indicate whether it represents a vertex or a control point for a curved edge.

Abstract: A method and apparatus for performing high speed graphics fill is provided. Any closed line geometric shape or polygon that can be defined by pixel position is stored in memory. The memory pixel positions are stored in address locations corresponding to row and column positions. A first sequential examination of the data is made in reverse raster scan order to make a preliminary determination of the pixel positions inside the closed polygon. A second sequential examination of the data is made in forward or regular raster scan order and a final determination is made whether the pixel positions are inside the polygon and shall be filled. The final determination of pixel positions to be filled is stored shortly before the graphics fill operation is performed so that the fill operation is performed in raster scan time at high speed.

Abstract: Scan lines of characters designating the name and address of a facsimile transmitting station or the like are stored in a read only memory (54). The scan lines are read out of the memory (54) and transmitted by a microcomputer (41) prior to facsimile transmission for reproduction on the top of a sheet of facsimile reproduction at a facsimile receiving station.

Abstract: A liquid crystal cell comprises a liquid crystal sealed between a pair of confronting transparent substrates. A multiplicity of semiconductor driver elements are substantially uniformly distributed over an inner surface of one of the substrates. The semiconductor driver elements have output electrodes connected respectively to matrix element electrodes formed on the inner surface of said one of the substrates. A driver circuit is formed as a semiconductor integrated circuit on an extension of the inner surface of said one of the substrates for selectively driving the semiconductor driver elements.

Abstract: A photoelectric sensing system, the adjustment of which is facilitated by the incorporation therein of a contrast indicator with a display in the form of an array of light emitting diodes (LEDs) controlled by a driver circuit which is arranged for successive illumination of the LEDs, preferably on a one-to-one basis. This bargraph type instrument is also effective in photoelectric sensing tasks involving variations of the detected light between "light" and "dark" at a rapid rate, in which case the range of LEDs between these two extremes appears dimly lit at a steady glow.

Abstract: A hand held paper pager is disclosed in which a transmitted message is displayed in alpha/numeric form by a precessing display which moves the received message across the display in a continuous fashion so that the display need be only large enough to present a relatively small portion of the total message at any given time. In one embodiment a dot matrix LED display is used and is driven by a recirculating shift register memory to provide the precession of the message as a result of the recirculation. In another embodiment the pager may also include a message entry section in which the precessing display is used to present and edit the message prior to transmission either via an acoustic telephone link to a remote transmitter, or directly from a transmitter carried in the pager/encoder package.