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4779132 |
Video monitor using encoded sync signals
A video terminal is capable of operating with three different vertical formats which are determined by the polarities of the incoming horizontal and vertical sync signals. A PROM is supplied with...
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4766493 |
Device for verifying operational conditions of monitor
A device for verifying the operational conditions of a monitor, to distinguish between a computer malfunction and a monitor malfunction by separating the signal cable of the monitor from the...
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4748444 |
LCD panel CMOS display circuit
An LCD panel display circuit for AC-driving a LCD panel with using a plurality of bias voltages has a display data interrupting circuit and an operation mode switching circuit, and the liquid...
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4727362 |
Digital display system
A digital display system includes a monitor arranged to receive digital display data and synchronizing signals to develop displays on a cathode ray tube. The monitor is switched between different...
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4720803 |
Display control apparatus for performing multicolor display by tiling display
A display control apparatus has a memory for storing luminance data corresponding to a plurality of color elements for color display, the luminance data being used as display data of dots to be...
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4716406 |
Sequential selection circuit
A protective circuit for a sequentially selecting circuit which selects a series of circuit element electrodes one by one with signals which are generated by a shift register. The invention...
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4713691 |
Interface circuit of video signal hard copy apparatus
An interface circuit of video signal hard copy apparatus for optimizing a phase of a sampling clock to an image signal. A delayed signal of a video sync signal is employed for a reference input...
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4707690 |
Video display control method and apparatus having video data storage
To improve data storage efficiency in a video display system having a video data memory (4) data for display is read out from the memory in a time shared manner. Addressing of the memory is...
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4677620 |
Graphical input of timing relationships
A method for adjusting a time delay of a signal with respect to a reference event is achieved by displaying a graphical representation of the delay time on a display terminal, modifying the...
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4631585 |
Apparatus for synchronizing the operation of a microprocessor with a television synchronization signal useful in generating an on-screen character display
A microprocessor embodied in an integrated circuit has a clock signal generator comprising an inverter in the integrated circuit and a frequency determining network external to the integrated...
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4626837 |
Display interface apparatus
An apparatus for interfacing externally generated display data with a display terminal so that the externally generated data can be displayed on the display terminal, the apparatus including means...
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4611228 |
Scan line synchronizer
Disclosed is a synchronizer for establishing synchronism between horizontal and vertical sync pulses of a non-interlaced video signal and those of an interlaced video signal, the number of...
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4580165 |
Graphic video overlay system providing stable computer graphics overlayed with video image
A color graphic overlay system for providing high speed, high resolution color graphics display combined with a video image from a videodisc, videotape or camera. The system includes a video mixing...
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4558315 |
Input apparatus and method for controlling the scanning of a multi-cell display
An apparatus and method are disclosed for adapting a multi-mode scanning technique employed to optically scan the display panel of a scanned display device to provide for the time required by the...
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4556880 |
Liquid crystal display apparatus
The invention is concerned with a liquid crystal display apparatus which displays data by driving a liquid crystal panel in synchronism with horizontal synchronizing signals and vertical...
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4540982 |
Delay compensation method and apparatus for digital display systems
A delay compensation method and apparatus for digital display systems includes a differential clock generator which controls the timing of progenitor digital signals in separate signal-processing...
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4538146 |
Integrated circuit output pins used for input signals
A circuit that monitors the LED driver output pins on an integrated circuit for quiescent moments and then uses those output pins, only during these moments, to strobe keys on a keyboard for input...
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4517598 |
Method and apparatus for electronic publishing
The present invention provides apparatus and methods for formatting and displaying video information having particular application to electronic publishing systems. A video signal which includes a...
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4491925 |
Precision time tracking line generator
A display system line generator network having an error correction feedback loop which achieves high positional accuracy for both plan position indicators PPI and synthetic character and line data....
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4486779 |
Apparatus to display graphic messages transmitted by videotext systems
A TV receiver is adapted to display either the regularly broadcast video signals or videotext information. The video signals contain their own internal synchronization signals. The videotext...
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4475124 |
Synchronizing system for character display
A system is described for synchronizing the display of characters within a character image area on a raster scanned cathode ray tube. The system's input is a composite blanking signal which...
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4468662 |
Display apparatus for displaying characters or graphics on a cathode ray tube
A display apparatus is disclosed comprising a picture memory having memorizing portions which correspond in one-to-one relation to characters or graphics to be displayed on the screen of a cathode...
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4450442 |
Display processor for superimposed-picture display system
A display processor for a raster-display type system comprising a display memory with the capacity of storing at least one page of video information to be displayed over the screen of a cathode-ray...
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4447809 |
High resolution figure displaying device utilizing plural memories for storing edge data of even and odd horizontal scanning lines
In a figure displaying device which generates edge data corresponding to the individual horizontal scanning lines, to display figures on the raster scanning type Braun tube relying upon the edge...
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4431314 |
Presettable digital time-piece display system
A multistage counter 3, 5, 7, 10 normally counts seconds pulses from a frequency divider 2. Counters 5 and 7 are units and tens minutes counters and are set by shifting a counter 21 by button B to...
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4425581 |
System for overlaying a computer generated video signal on an NTSC video signal
A system for overlaying a computer generated video signal on an NTSC video signal includes horizontal and vertical pulse processor circuits for generating a horizontal start signal and a vertical...
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4420750 |
Alphanumeric visual display of the matrix type
An alphanumeric visual display of the matrix type for use in electronic digital wristwatches and similar devices is adapted to display relatively lengthy numerical or character information on a...
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4388621 |
Drive circuit for character and graphic display device
In a φ 2 cycle steal mode, a clock signal is selected such that a time period during which a RAM is connected to a timing signal generator for display is extended and a time period during which...
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4365245 |
Display module for traveling pattern signs
A display module which controls a sequence of lights, for interconnection with other modules of the same kind to form a display system. The module controls the intensity of each light in its...
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4354188 |
Device for dividing a recurrent input signal by a non-integer divisor f, notably by f=N-1/2
A number of dividers for a non-integer divisor f, notably f=N-1/2. The divider comprises a chain of dynamic bistable elements, at least one of which is activated in reaction to the positive-going...
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4352102 |
Liquid crystal display of time dependent signals
A liquid crystal display has a first system of parallel elongated electrodes and a second system of parallel elongated electrodes. The first and second systems are perpendicular to each other. The...
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4348667 |
Automatic line segment generator for use with linear array display devices
An automatic line segment generator is disclosed primarily for use with linear array display devices. Converted analog data is received from a single slope analog to digital converter. This...
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4346407 |
Apparatus for synchronization of a source of computer controlled video to another video source
Synchronization of a source of computer controlled video to another video source is achieved by providing clock pulses for the source of computer controlled video at some multiple of the horizontal...
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4345246 |
Synchronization device for a character-generating circuit and a vertical scanning circuit and television receiver comprising such a device
Devices for displaying a label on a visualization screen. The information display inserted into a background image is provided by a character-generating circuit. The stability of the label requires...
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4344075 |
Timing circuit for the digital generation of composite luminance and chrominance video signal for non-interlaced television raster scan-line pattern
Ragged vertical edges normally displayed by a NTSC color-carrier on a non-interlaced display are effectively eliminated through persistence of vision by altering the duration of a selected single...
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4342989 |
Dual CRT control unit synchronization system
A logic control system in a video display terminal is disclosed for synchronizing the operation of dual, asynchronously operating CRT control unit semiconductor chips to accommodate a substantially...
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4338597 |
Remote monitor interface
A data processing system remote monitor interface includes a first device which transmits different types of time-related information signals along multiple parallel channels to a second device for...
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4291412 |
Portable radio frequency/channel display system
A portable radio frequency/channel display control system for use in a portable radio device or the like which is powered by a battery and of the type which includes a display for indicating the...
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4264963 |
Static latches for storing display segment information
Display information is stored in an array of segment latches, and by addressing these latches with common signals, the number of instructions necessary to operate a calculator in a display mode is...
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4231035 |
Liquid crystal display for large time multiplexing factors
A liquid crystal display screen of the twisted nematic type comprising a liquid crystal having a dielectric relaxation and a high dispersion of ε 11 is used in a display device with a...
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4225847 |
Display circuit
Disclosed is a data display circuit which comprises a shift register circuit including six cascade-connected shift registers shifting serial data to produce parallel data, a decoder circuit...
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4148015 |
Electronic timepiece with an electrochromic display
A driver circuit for an electrochromic display device for an electronic timepiece. In a first preferred embodiment, drive signals are applied through a plurality of source follower first and second...
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4045815 |
System for combining analog and image signals into a standard video format
A system for combining at least one analog signal, such as EKG signal, and an image signal, such as video signal representing a fluoroscopic view of a patient's heart or the like. The system...
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4012592 |
AC line triggered refreshing of CRT displays
The disclosure describes a digitally controlled raster scan display system comprising a video signal generator that is automatically synchronized with the frequency of the a.c. power line from...
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3973254 |
Arrangement for a dynamic display system
A digital display system of the dynamic pulse-lighting type for electronic desk-top calculators and the like, characterized in that a blanking signal having a pulse width large enough to cover each...
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3956744 |
Numeral output system for circulating register
A display (or printing) device is dynamically capable of displaying an output numeral from a register in a time division manner. The display device is controlled by a control circuitry adapted to...
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3946378 |
Dynamic digital pulse display
An arrangement for the dynamic direct display of pulses in the nanosecond range operates without oscilloscopes or other special display apparatus. To display pulse timing or amplitude...
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3944993 |
Non-interlaced 263 TV line character generation system
A character generator system suitable for creating a character display on the screen of a standard TV receiver is disclosed. The character generator system includes a sync generator which generates...
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3941989 |
Reducing power consumption in calculators
Continuous power and a high rate clock are supplied to a calculator while it is in an execute mode and is actually decoding and processing input information, but lower duty cycle power and lower...
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3940755 |
Plasma display driving apparatus
Apparatus for driving a plasma discharge display employs a sustaining voltage pulse train source for quiescently energizing the display electrodes. To modify the display presentation, e.g., to...
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