SU760082A1 - Device for displaying information on crt screen - Google Patents

Description

The invention relates to the field of computer technology and is intended for use in mechanical engineering and instrument making, in design, art and design, defectoscopy, medical electronics, automated control systems and other areas of science and technology.

There are known devices for displaying information, containing an input register connected via an control unit to an injector connected in series with a pulse shaper and a gradation decoder associated with an input register [1].

The closest technical solution to the invention is a device for displaying information, containing an input register connected to a digital-to-analog converter on coordinates X and Ζ and through a pulse shaper with an indicator connected to amplifiers of deviations along coordinates X and 2 [2].

A disadvantage of the known devices are limited functionality, in particular the inability to build2

volumetric images in three coordinates.

The aim of the present invention YaV, wish to set up the expansion of the application device by providing the possibility of constructing three-dimensional images in DYMET ⁵ Rhee on the display screen.

This goal is achieved by the fact that the device is connected in series with a digital-to-analog converter for the y coordinate, associated with an input register Yu, an adder of x, y coordinates, associated with a digital-analog converter for the x coordinate and an amplifier of deviations along the X coordinate, and an adder of coordinates Ζ, Y, associated with the digital-to-analog converter on the coordinate I and an amplifier of ¹⁵ clones on the coordinate Ζ, as well as the fact that a scale reference block is inserted in the device connected to the input register and summators to the coordinates at Χ, ΥηΖ, Υ.

FIG. 1 shows a block diagram _{20 of} a device for displaying information; in fig. 2 - construction of a spatial image in dimetry.

A device for displaying information contains an input register 1, connected760082

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with a digital-to-analog converter 2 on the X coordinate with a digital-analog converter 3 on the coordinate Ζ and through the driver 4 pulses with an indicator 5 in the form of a memorized CRT, which is connected to the amplifier 6 deviations along the Lyck coordinate amplifier 7 deviations along the ⁵ coordinate Ζ.

The digital-to-analog converter 8 along the V coordinate is connected to the input register 1, the adder 9 coordinates Χ, Υ and the adder 10 coordinates, Υ. The adder 9 coordinates X, Υ is connected to the block 11 specifying the scale, digital-to-analog converter 2 along the coordinate X and amplify 6 deviations. The adder 10 on the coordinate Ζ is connected to the block 11 specifying the scales by the digital-to-analog converter 3 and on the coordinate Ζ and the amplifier 7 deviations.

The device works as follows.

The input register 1 of the device comes from the computer in the form of perforation codes about the coordinates X, Υ κΖ, as well as about the presence or absence of illumination pulses. From the output of input register 1, the coordinates X, Υ and Ζ are fed to digital-to-analog converters 2, 8 and 3, respectively. DC voltage from digital-to-analog converter 2, which determines the X coordinate, goes to one of the inputs of the adder 9. Code packages about the scale of the projection come from the input register 1 to the input of block 11 specifies the scale, from two outputs of which the scale factors are fed to the inputs of adders 9 and 10. A constant voltage that determines the coordinate is fed to the first input of the adder 10.

In the absence of a coordinate Υ, the data on the X coordinates through the adders 9 and 10 without any changes go to amplifiers 6 and 7 deviations, respectively, and further to the deflecting systems of the indicator recording section based on the CRT memory (PENT). The illumination pulses from the input register 1 through the pulse shaper 4 of the illumination arrive at the third input of the indicator on the basis of a CRT, providing illumination of a given information point. In this case, an image in the ΧΖ plane is constructed and reproduced on the indicator screen, as shown in FIG. 2 (for example, line 0, obtained by simultaneously receiving, respectively, equal in magnitude of the signals of the coordinates X and Ζ).

Upon receipt of information about the coordinate причем (and the coordinates X and Ζ are missing, i.e., the axis Υ should be built at an angle of 45 ° to the horizontal line on the screen of the indicator 5) with both outputs of the digital-to-analog converter 8 the same voltage goes to the second the inputs of identical adders 9 and 10 and further through the amplifiers 6 and 7 deviations on the deflecting system of the sections of the record indicator on the ZELT. Incoming 4

temporarily with the movement of the recording beam of the CRT memory, the illumination pulses ensure the recording and further reproduction of the line that is the U axis.

To build lines in the ΥΖ plane in the absence of the X coordinate, information comes through digital-to-analog converters 8 and 3 to adders 9 and 10, and to the adder 9, information about the coordinate Υ goes to its second input from the digital-to-analog converter 8, and to the adder 10 to signals from digital-to-analog converters 8 and 0 are fed to two inputs.

The resulting voltages through Υ0Υ are fed to the deflection coil of the V indicator based on the ZELT, providing for the arrival of illumination pulses the construction and display of the line in the plane ΥΖ (for example, the lines ON, as shown in Fig. 2). The greater the voltage coming from the output of the digital-to-analog converter 3, the more abruptly (at a smaller angle to the axis идет) there is a line that is built in the plane. Similarly, lines are constructed in the XX plane with the difference that in this case there is no coordinate Ζ and the adder 10 transmits without changes to the amplifier 7 the voltage deviations from the second output of the digital-to-analog converter 8, while the adder 9 summarizes the voltages coming from the digital-analog converters 2 and 8.

Spatial lines are built with simultaneous receipt of signals about the coordinates Χ, Υ, Ζ. The voltages from the output of the digital-to-analog converter 2 are summed by the adder 9 with the voltage coming from the first output of the digital-to-analog converter 8, and the voltage from the output of the digital-to-analog converter 3 is added by the adder 10 to the voltage from the second output of the digital-analog converter 8. If, for example, the voltages coming from the outputs of digital-to-analog converters 2 and 3, vary from zero along the same law linear in time up to the values that determine the coordinates of points A on o and X and osi2, and the voltage output from the digital to analogue converter 8 varies as defining mark on Υ-axis (in the absence of stresses on channels X) up to a point C, on the display screen is constructed and reproduced OR diagonal of the cube. In this case, from both outputs of the digital-to-analog converter 8, the outputs of the adders 9 and 10 receive the same in magnitude and time-matched voltages.

The more complex laws of voltage variation from digital-to-analog converters 2, 3, and 8 determine the construction and display of curves and surfaces of second order. So for example for

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plotting a circle in the ΧΖ plane of voltage from digital-to-analog converters 2 and 3 in the absence of signals from digital-to-analog converter 8, varying in a sinusoidal law (with a phase shift of 90 °) are received through adders 9 and 10 and then through amplifiers 7 ⁵ and 6 deviations to the system the deviation of the indicator 5 in the form of a memory CRT, providing when building pulses of illumination for displaying a circle (Fig. 2).

The introduction to the device of new nodes - a digital-to-analog converter, a scale setting block 11 and two adders 9 and 10 favorably distinguish the device for displaying information from the specified prototype, since it is possible to construct spatial images and reflections. This is extremely necessary when carrying out design work, computer modeling of complex profiles of curved surfaces in dimetry. In this way, the functionality of the device expands significantly, which makes it possible to use it in new areas of science and technology. The device can be implemented on the basis of the storage CRT with a visible image, in which the functions of the accumulator and the information visualizer are combined, and on the basis of the storage CRT with the electrical representation of the output signal. In the latter case, for visualization of the image used in the KU.

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Claims (2)

Claim 1. A device for displaying information, containing an input register connected to digital-to-analogue converters in X and Ζ coordinates and through a pulse shaper with an indicator connected to amplifiers X and II deviation, characterized in that, in order to expand the scope of the device by providing constructing volumetric images in dimetry on the indicator screen, a serially connected digital-to-analog converter on the coordinate Υ associated with the input register is entered into it, the sums the coordinate coordinate XY associated with the digital-to-analog converter on the X coordinate, and the adder of the coordinates Ζ, Υ associated with the digital-analog converter on the coordinate and the amplifier of the deviations along the coordinate. 2. Device by π. 1, characterized in that a scale reference block is inserted in it, connected to the input register and adders of the coordinates X, ηΖ, Υ.