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7499058 |
Programmatical access to handwritten electronic ink in a tree-based rendering environment
A system and method for performing ink related operations in a tree-based presentation system is described. Ink-related programmatical interfaces may relate to interactions with a stroke object, a...
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7495674 |
Video generation and capture techniques
Video processing arrangement including a host computer having a monitor, a video asset coupled to the computer for generating video signals and an interface for connecting the video asset to the...
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7446778 |
Dynamically adjusted brush for direct paint systems on parameterized multi-dimensional surfaces
A system that implements a “tangent space brush,” allowing a user to paint directly onto a parameterized object, for example a three dimensional object. A tangent space brush projects...
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7305011 |
Periodic broadcast and location of evolving media content with application to seminar and stroke media
Techniques are provided for broadcasting history or coarse representations or both of stroke media and other media. Levels are created for media, and the levels are periodically broadcast. The...
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7054468 |
Face recognition using kernel fisherfaces
A face recognition system and method project an input face image and a set of reference face images from an input space to a high dimensional feature space in order to obtain more representative...
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6559609 |
Raster center control circuit for CRT-type display device
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...
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6525711 |
Haptic interface including clutch control
A user can selectively engage some part or all of the haptic display of a haptic interface device to produce an enhanced interaction with an environment with which the user interacts using the...
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6435682 |
Laser imaging using a spatial light modulator
An image projection system is provided for generating an energy efficient output representative of a desired input image. The image projection system includes a light source positioning device for...
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5969699 |
Stroke-to-stroke
A digital address filter is provided which converts straight-line and arc analog stroke data into digitized images which comply with Bresenham raster display criteria and can be displayed on a...
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5835086 |
Method and apparatus for digital painting
A method and apparatus for painting a digital picture using strokes of a digital brush is provided. The painting strokes entered by a user is handled using a "lazy" processing approach, in which a...
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5834745 |
Microwave oven with NCAP liquid crystal operation display panel
A heating apparatus such as a microwave oven includes a magnetron and a heating chamber for accommodating food to be heated by microwaves generated by the magnetron. The heating chamber has a front...
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5754433 |
Computer-aided design system
The computer-aided design system of the present invention is characterized in that a grasping force sensor 4 is mounted on that operating bar 3 at the front end of a manipulator 1 which is grasped...
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5317331 |
Symbology display method
In a digital display system including a stroke scanning mechanism, a method which comprises the steps of displaying symbology and increasing or decreasing the number of symbols stroke scanned,...
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5302964 |
Heads-up display (HUD) incorporating cathode-ray tube image generator with digital look-up table for distortion correction
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)...
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RE34559 |
Diagnostic method for analyzing and monitoring the process parameters in the operation of reciprocating equipment
The method of the present invention utilizes a microcomputer in combination with a CRT and a multiplicity of transducers for monitoring process parameters in the operation of a reciprocating device...
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5047756 |
Video compensation apparatus for stroke mode CRT displays
A stroke-mode CRT display having a Z channel (video) compensation circuit is disclosed. The function of the compensation circuit to correct for the lag of the X and Y channels in relation to the Z...
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4808988 |
Digital vector generator for a graphic display system
A graphics display system digital vector generator system includes three position vector generators generating position information for each of three different pixel location dimensions and three...
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4742343 |
Digital stroke generator
A digital stroke generator reads and writes discrete stroke segments in a display memory. The generator comprises principally a line address register, a column address register, a command...
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4697175 |
Lightpen control circuit
A control circuit for a lightpen of a random scanning computer graphics sem (10) enabling the detection of lightpen interrupts or hits on contiguous vectors having drawing periods shorter than the...
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4635050 |
Dynamic stroke priority generator for hybrid display
A cathode ray tube provides a raster can symbol display superimposed on a stroke vector display, with selected regions of the stroke vector display preferentially masked in response to priority...
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4631454 |
Quasi-resonant random access deflection system for a calligraphic display monitor
A quasi-resonant random access deflection system includes a biresonant, bidirectional deflection circuit connected to the deflection yoke of a display monitor picture tube and a control circuit...
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4631532 |
Raster display generator for hybrid display system
A color cathode ray tube has raster scan color zones defined by X and Y positional signals derived from a stroke vector generator and stored in a digital memory. Raster scan and stroke vector...
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4623880 |
Graphics display system and method having improved clipping technique
The invention concerns a graphics display system of the kind having a refresh raster display device, a line clipping mechanism for clipping line primitives for viewing in a selected rectangular...
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4595918 |
Stroke writing character generator with reduced bandwidth
A stroke writing character generator pauses between the generation of vectors, which may meet at sharp corners, so as to reduce deflection bandwidth. A stroke state machine having a plurality of...
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4584574 |
Information display and editing system
A method and system is disclosed for displaying and editing information without flicker. Vector branch commands as well as the vectors comprising the information to be displayed are both divided...
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4535328 |
Digitally controlled vector generator for stroke written CRT displays
A system for developing horizontal and vertical deflection signals for drawing a vector of predetermined length and angle on the face of a cathode ray tube is disclosed. Variable rate integrators...
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4532504 |
Slew length timer
A slew length timer generates a variable time delay to signal the end of slew to a display symbol generator. Two memories, one for each deflection channel, are addressed by the starting and ending...
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4529978 |
Method and apparatus for generating graphic and textual images on a raster scan display
An image of a two-dimensional matrix to be displayed is formed in a refresh memory entirely by the execution of sequences of "pattern modulated" line segments termed "vectors". Two sequences of...
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4511892 |
Variable refresh rate for stroke CRT displays
In a cathode ray tube display system of the type utilizing stroke techniques, the display refresh rate is allowed to decrease from a specified maximum in order to ensure that all stroke information...
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4500879 |
Circuitry for controlling a CRT beam
A CRT beam control apparatus wherein a microprocessor drives the CRT beam for controlling the beam characteristics, including writing speed, slope, position and intensity. The apparatus includes a...
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4496944 |
Graphics display system and method including associative addressing
A graphics display system is disclosed including a memory circuit for storing vector data representing a graphics image, a raster memory circuit for rasterizing the vector data into a second memory...
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4491835 |
Raster and stroke writing deflection amplifier arrangement
A Raster and Stroke Writing Deflection Amplifier Arrangement for a cathode ray tube (CRT) is disclosed which uses a conventional vertical oscillator and vertical deflection amplifier and a...
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4481605 |
Display vector generator utilizing sine/cosine accumulation
The vector generator comprises X and Y digital-to-analog converters providing X and Y deflection voltages to a cathode ray tube display. X and Y digital accumulators provide respective inputs to...
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4449124 |
Precompensated stroke cathode ray tube display system apparatus and method
With a directed beam imaging system, a method is presented employing a low-pass filter in the positional signal path, a time-discrete positional signal, and precompensation of this time-discrete...
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4413323 |
Digital symbol generator with symbol error checking
A digital symbol generator for developing analog deflection voltages to drive a cathode ray tube display forming a plurality of symbols from successive blanked and unblanked vectors rotatable about...
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4369441 |
Display control system
A random refresh vector-generator type display system using a hybrid digital/analog vector generating technique. A digital vector generator decomposes medium length vectors into sub-vectors which...
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4365305 |
Vector generator for computer graphics
A vector generator (11) for a computer graphics system of the type in which the beam (26) of a CRT (13) is deflected by analogue deflexion signals to form an image comprised of a plurality of...
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4310840 |
Text-processing
A text-processing system for presenting input data on a display device such as a cathode ray tube (CRT) and/or a data receiving unit from which the data may be selectively retrieved and presented...
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4241340 |
Apparatus for generating displays of variable size characters
A character display system is disclosed which provides displays of characters of variable size. A diddle raster scanning technique is used to display each character in its entirely before...
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4240073 |
Cathode ray tube display system with display location memory
A cathode ray tube display system apparatus and method in which a memory stores the addresses necessary to cause the electron beam of a cathode ray tube to impinge upon predetermined locations on...
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4237458 |
Stroke expansion apparatus
A stroke expansion technique for use in controlling incremental stroke displays. The technique results in a substantial reduction of the stroke memory required for storage of the stroke sequences...
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4218751 |
Absolute difference generator for use in display systems
An absolute difference generator comprises an adder, an Exclusive-OR, two inverters and a latch. One input number is inverted, then presented to one input of the adder while the other input number...
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4157537 |
Display system utilizing digital-analog vector generation
A system wherein dynamic capability is incorporated into direct view storage tube terminals to provide both refreshed and stored information. More specifically, the system incorporates dynamic...
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4149164 |
Digital plotting system for graphic information
A digital plotting system that receives and stores coded signals depicting raphic information for processing and display. The system processes three basic types of information which are short...
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4095145 |
Display of variable length vectors
A variable length vector display system allows visual indication of the sd and direction of aircraft or moving vehicles, maintaining a constant illumination on the face of a cathode ray tube...
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4090187 |
Television titling system for producing overlapping characters
The invention is applicable to an apparatus which receives a sequence of character-representative signals and which generates stroke signals that are suitable for controlling a scanned display to...
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4074359 |
Vector generator
A high speed vector generating electrical system is provided which provides the deflection voltages required to draw a vector line from one point to another on the screen of a cathode-ray tube. The...
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4056713 |
Display processing unit for drawing vectors
A high speed display processing unit (DPU) for displaying vectors on a cathode ray tube is disclosed. Each vector to be displayed is classified as to whether it is virtual, visible or both. If the...
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4039784 |
Digital minimum/maximum vector CRT display
A vector CRT display apparatus for faithfully reproducing an analog signal having high frequency components include an A-D converter, a digital minimum/maximum circuit and a recirculating shift...
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4032768 |
Constant velocity vector generator
A Constant Velocity Vector Generator is disclosed for connecting X, Y coordinate points of a rectangular coordinate display system. Simultaneous ΔX and ΔY step voltages are converted to ramp...
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