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US 4,291,306 AGranted
Figure displaying device
AssigneeHitachi, Ltd.
InventorsKazuyuki Kodama, Kunihiro Okada, Takakazu Huno, Takeyuki Endo, Yasutaka Shibuya
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AssigneeHitachi, Ltd.
InventorsKazuyuki Kodama, Kunihiro Okada, Takakazu Huno, Takeyuki Endo, Yasutaka Shibuya
Estimating the term…
Herein disclosed is a figure displaying device for producing and displaying a figure on a raster scan television. The figure displaying device includes first memory means for storing the vertical and horizontal coordinate values of the stop information of one frame to be displayed and second memory means for storing preset information. Further inclusive is control means for locating such dot information having a vertical coordinate value corresponding to the vertical scan of the television from the first memory means so that the dot information may be stored at the address of the second memory means corresponding to the horizontal coordinate value of the dot information located.
A figure displaying device for displaying a figure on the screen of a raster scan television in accordance with a plurality of dots, comprising:
A figure displaying device for displaying a figure on the screen of a raster scan television in accordance with a plurality of dots, comprising:
Dependencies are inferred from the claim text.
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Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators: characterised by the…
By computer-processed or -generated image: the image being transformed by computer processing, e.g. updating the image to correspond to the…
Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators: characterised by the way…
Arrangements or circuits for control of indicating devices using static means to
USPTO file history isn’t available for this patent, so only indexed dates are shown.
Term ended 23 Nov 1999 (estimated)
1. Field of the Invention
The present invention relates to a figure displaying device for displaying dot information in a raster scan television on the basis of the data fed out of a computer, and more particularly to a visual scene display to be attached to a simulator for pilot training by computer generated imagery (CGI) technology.
2. Description of the Prior Art
FIGS. 1 to 3 are block diagrams showing one embodiment of a figure displaying device according to the present invention;
FIG. 4 is also a block diagram but shows the construction of a random access memory of FIG. 2;
FIG. 5 is also a block diagram but shows the control unit of another embodiment of the figure displaying device according to the present invention;
With reference to FIGS. 1 to 4 showing one embodiment of a figure displaying device according to the present invention, description will now be made of the example, by which 512 dots, at the maximum, having four separate colors are displayed by television (shown in FIG. 7) having a resolution of 1024 (in the horizontal direction).times.512 (in the vertical direction).
In FIGS. 1 to 4, letters RAM indicate a random access memory, SEL a data selector, CNT a binary counter, CMP a comparator, LAT a latch register, TFF a T type flip-flop, DEC a decoder, SR a shift register, PE a priority encoder, DAC a digital-to-analog converter (or DA converter), NAND a NAND gate, AND an AND gate, NOR a NOR gate, OR an OR gate, and INV an inverter.
The random access memory RAM is made operative to perform both a writing operation by receiving at its input terminal DI the data to be written, by designating at its address terminal ADR the address to be written or read and by receiving the value "0" at its chip select terminal CS and at its write enable terminal WE and a reading operation of the data from its data output terminal D0 by receiving the value "0" at its chip select terminal CS and the value "1" at its write enable terminal WE.