SU1068981A1 - Device for displaying information on crt screen - Google Patents

Abstract

A DEVICE FOR DISPLAYING INFORMATION ON THE SCREEN OF ELECTRON-BEAM PIPE, containing the first and second registers, the sine-cosine converter r whose inputs are the corresponding inputs of the device; and exits; they are connected to the inputs of the computing unit, the output of which is connected to the input of the synchronizer, a logical driver and a static image generator, in order to improve the quality of information display by forming complex dynamic shapes. It contains the third and fourth registers, the four Torahs accumulating the sum and the quasi-volume driver (gi, the inputs of the Third and the fourth registers are connected to the outputs of the computing unit, the inputs of the first accumulating adder are connected to the second output of the sine-cosine converter, the output of the third register and the first synchronizer output, the inputs of the second accumulating adder connected to the first output of the sine-cosine converter, the output of the fourth register and the first output of the synchronizer, the inputs of the third its accumulator connected to the first output transducer sinusnokosinusnogo, Yield first accumulator and the second output of the synchronizer, the inputs of the fourth accumulator connected to vto1zh m sinusnokosinusnogo output transducer, the output of the second nakaplivakntsego Summaya torus and second output sinhroniza35 EO torus, the outputs of the third and fourth accumulating adders are connected to the inputs of the logic driver,: o the output of which is connected to one of the inputs of the driver of the quasi-volume 0 0, the other inputs of which are connected to the outputs of the static image generator.

Description

The invention relates to radio engineering, in particular, to electronic synthesis of complex dynamic images on a television screen, and can be used when built situational displays, television gaming machines and simulators, when building specialized information display devices, in which it is necessary to create an dynamic image on the background. static image. A device for displaying information on a television screen, comprising a computing unit, a buffer memory, a character generator, a graphic element generator, a keyboard, a modem, and a printing unit SI are known. A disadvantage of this device is that it does not allow the formation of complex quasi-volume figures, which reduces its quality. The closest to the invention of the technical entity is a device for displaying information, comprising sequentially connected registers, a computing unit, a switch, a summing counter and a standby generator, a calculating unit connected to a synchronizer connected to the line frequency bus, a coordinate converting unit line frequencies and field frequencies and the input of the computing unit; line frequency buses are connected to the inputs of the switch and the waiting generator; the digital threshold inputs element is connected to the outputs of the summing and reversing counters, the input of the reversible counter is connected to the output of the position code switch of the L2l figure. However, the known device allows only an oblique displacement shape (NFV) to be formed and does not allow for the formation of complex dynamic images. formations. The aim of the invention is to improve the quality of the display of information by forming complex dynamic shapes. The goal is achieved by the fact that the information display device on the screen of a cathode ray tube containing the first and second registers, a sine-cosine transducer, whose inputs are the device inputs and the outputs are connected to the inputs of the computing unit whose output is connected to the synchronizer input, a logic driver and static image generator, the third and fourth registers are entered, four accumulating adders and quasi-volume generator, the inputs of the third and fourth registers with Connected to the outputs of the computing unit, the inputs of the first accumulating adder € € Shineny with the second output of the sine-cosine converter, the output of the third register and the first output of the synchronizer, the inputs of the second accumulating adder are connected to the first output of the sine-cosine converter, the output of the fourth register and the first output of the synchronizer, inputs the third accumulating adder connected to the first output of the sine-cosine transducer, the output of the first accumulating adder and the second output meters of the synchronizer, the inputs of the fourth accumulating adder are connected to the second output of the sine-cosine converter, the output of the second accumulating adder and the second output of the synchronizer, the outputs of the third and fourth accumulating adders are connected to the inputs of the logic driver, the output of which is connected to one of the inputs of the former, quarazability. connected to the outputs of the imaging unit static images. Figure 1 shows the functional diagram of the device in FIG. 2, the conventional view of the converted digital scanning discretization functions. The device contains the first 1 and second 2 registers, the outputs of which are connected respectively to the first and second inputs of the computing unit 3, the synchronizer 4, the first output of which is connected to the third input of the computing unit, the sine-cosine converter 5, the third b and fourth 7 registers, the first 8 , the second 9, the third 10 and the fourth 11 accumulate accumulators, a logic driver 12, a quasi-volume generator 13 and a static image generator 14. The device works in the following way. The formation of rotating images, possessing three degrees of freedom on a television raster, is carried out with the help of two digital scanning functions (CRF) transformed by location and control in relation to the Cartesian axes of the television (TV) scan. In this case, the direction of increase of the transformed CRPs should be a right angle. The process of modeling the transformed CRP is carried out by choosing the normal direct equation and the quality of the simulated one. For this purpose, the normal equations of forward hooa are P, o i co & Ф 4 tf - а О,; for KOTopf-Tx, the angle of inclination to the axis 2+ 9 (f is expressed as XSirup- "COUlp-P, O; H0051 / +1 & Gf-P2 0C2) in these equations, y - current coordinates, and p and p are the shortest distances from the origin to the selected direct (normal). To determine the values of p and p, the last expressions are presented as direct, passing through a certain point M (x, y), namely X 4 sin cf - t, costp - (1 O, (p - «- 4 P o CsJ: From these equations, one obtains p ,, and Pj., Cp-y, cos (fs, OS) (f vl -lStWf- .i Considering that x p-dx, where n is 1,2, 3,4, ..., as well as the discretization condition / d X L at cinst., We obtain from the expression (2) vixsmvp C - 0 i flKC st -vw jSlMCp- Q Similarly from formula (4) p - Pu,. Cf - COS cf i Px..P1, .. feV Equations (5) and (6) allow us to make modeling equations. In this case, using the method of direct analogy, we have MlS MLS brs-Meb) c08f-Nafc Njt- fc N Ctycostp - Wa in -Nj О) where N, (t) and digital razlivayushchie funktsal horizontal vertical creations. Mfyj, (pN, OOStp% - NX "COStP a coordinate is located in the lower left corner of the TV raster. As can be seen from the obtained, the transformed CRP is provided by performing p mathematical operations that differ significantly in speed. These include operations that are performed at a negligible rate (the calculation of the Md and Np values, as well as the selection of the parameters S1pf and cos ".p) f of the operation of the Medium type (calculation of the values of Ni (fc) N (t) sinf). fast races (calculation of N (t) sin Tiji. (t) cos-4) and final summation). In addition, the nature of the operations performed is essential. Thus, for example, operations performed at a negligible rate are performed asynchronously with the aid of a microprocessor or microcomputer and are entered into a digital synthesizer during the flyback of a personnel sweep. Medium-speed operations are also performed using a microprocessor system in synchronization with line speeds. However, performing a large number of operations that are repeated from line to line produces an unjustifiably large load on the microprocessor system, which in turn prevents it from doing other work. Therefore, medium speed operations are performed with the help of specialized computing devices. Of particular difficulty is the implementation of high-speed mathematical operations, since during the playback of one TV element (100-200 ns) the computing device must perform a large number of operations with multi-digit numbers. For this case, a specialized computing device with a very high speed is used. At the same time, the simplification of the type of mathematical operations leads not only to simplifying the computing device and reducing the power consumption, but also to improving the quality parameters of the generated images, since it allows ensuring their high resolution. A significant simplification of the nature of mathematical operations is provided if, in the process of formation of CRFs, we take into account the correlation of the formed images both horizontally and the vertical of the raster. At the same time, mathematical operations are performed with digital sweep functions of horizontal and vertical sampling, and with differences between the current value and the predicted (calculated) value. This variant has found application in various difference (differential) methods of signal coding. Indeed, the expression (7) can be represented as) l Jfeift.)) - Z cosf t tpv NjCt N and ... ft, y ,,, .j "" "r-- tHn ,, The first 1 and the second 2. The registers (Figure 1) are blocks for receiving, interim storage and issuing multi-bit layers that uniquely define the point code M (Nnj (J NI)) and reflecting the coordinates of the rotation center. Registers 1 and 2 work as transmission units with a parallel method of receiving and transmitting information and are performed on integral low-trigger triggers. Sine-cosine converter 5 is a block for converting the binary code of the angle jp in its function sif & p and cos4 Depending on the value of the required angular accuracy, the code for the angle if is expressed by one or another discreteness in binary degrees (one binary degree is equal to BdO / 25b 1.40635). Thus, the angle code, (, to provide the required angular accuracy of 1 or 0.5 binary degrees, is expressed by an 8-9 digit code. Directly converting this code to the binary code of the SVM function ;; So-5f is provided with the aid of read-only memory (ROM). At the same time, the code of the angle 4 is fed to the address inputs: ROM, as a result of which a particular memory cell is polled and the result is output to the ROM output. For the ROM to function as a generator of functions, the information is not recorded for the function svo and for each discrete angle code F. This information is also expressed as parallel binary codes. Computing unit 3 is a specialized state machine designed to compute NP, j and NRi / o values in accordance with equation (b). The calculation unit gives the result of the calculation no more than once for two sexes, i.e. at a rate of 25 times per second. The third 6 and fourth 7 registers are designed for receiving, intermediate storage and issuing multi-bit layers, uniquely identifying codes for the NU / 6 and NPi / o values, the first 8 and second 9 accumulating adders provide summation of the input to the codes of codes and N (with function codes The co and if and Stn соответственно, respectively. In accordance with equation (8), the functions ccsg: perform the role of those differences that should be entered into accumulating adders 8 and 9 during the return stroke along the line. For this purpose, the inputs of the accumulator 8 and 9 are supplied with horizontal sync pulses (FID) from the second output of synchronizer 4. The final formation of the transformed CRP in accordance with expression (9) is performed by accumulating adders 10 and 11. Clock pulses (TI) are used as clocking pulses for these adders. ) horizontal sampling generated by the synchronizer 4. Logic driver 12 is a block forming the complex dynamic is depicted. SRI. Input variables are converted digital sweep functions. FIG. 2tf shows the conditional view of the converted digital sampling scanning functions generated by accumulative adders 10 and 11, respectively, and FIG. 2d shows an example of the formation of a rotating image for a financed tilt angle value. Depending on the type of image being formed, the logical shaper performs certain logical transformations, as a result of K01 on the output of block 12, an image video signal is formed, the angle of which to the coordinate axis x, y is determined by the value of the angle vp. Static imaging unit 14 and logical imaging unit 12 are logical synthesis units operating according to a certain program C31 and. The quasi-volume generator 13 is a logic synthesis unit that provides priority to foreground signals (images) tSl. The illusions of quasi-volume on a flat-screen TV are always enhanced when in Multi-Iso. There are mobile elements. For example, if a static image generator generates (The foreground image signal XD, in the background is the dynamic image Xj generated by block 12, and the electrical sial of the surrounding background formed by block 14 is displayed as variable X. In a complex image, the foreground configuration does not undergo so that it can be washed down. The background image is closed by the foreground image. Therefore, in the complex image, the Xj t Image remains open. s ambient background image E closes both the front m second plan, i.e. Xs -)

The complex image is

 4, v4j4, XiX2X The proposed device allows the formation of virtually any image with three degrees of freedom. At the same time, the generated images are not subject to distortion.

forms.

FIG g

,, L X / sin

 to

AX / CCfSf

Claims (1)

- A DEVICE FOR DISPLAYING INFORMATION ON THE ELECTRON BEAM TUBE SCREEN, containing the first and second registers, a sine-cosine converter, the inputs of which are the corresponding inputs of the device; and the outputs, they are connected to the inputs of the computing unit, the output of which is connected to the synchronizer input, a logical shaper and a static image shaper, characterized in that in order to improve the quality of information display due to the formation of complex dynamic shapes, it contains the third and fourth registers, four accumulating adders and a quasi-volume shaper: <and, the inputs of the third and fourth registers are connected to the outputs of the computing unit, the inputs of the first accumulating adder are connected to the second the output of the sine-cosine converter, the output of the third register and the first output of the synchronizer, the inputs of the second accumulating adder are connected to the first output of the sine-cosine converter, the output of the fourth register and the first output of the synchronizer, the inputs of the third accumulating adder are connected to the first output of the sine-cosine converter, the output the first accumulating adder and the second output of the synchronizer, the inputs of the fourth accumulating adder are connected to the second output sinus a different converter, the output of the second accumulating adder and the second output of the synchronizer, the outputs of the third and fourth accumulating adders are connected to the inputs of the logical shaper ^ whose output is connected to one of the inputs of the quasi-volume shaper, the other inputs of which are connected to the outputs of the static imager.