SU842933A1 - Device for displaying information on crt screen - Google Patents

Description

(5) DEVICE FOR DISPLAYING INFORMATION ON THE SCREEN OF A TELEVISION RECEIVER

one

The invention relates to computing and can be used in digital data output devices on a cathode ray tube screen for displaying graphical information, in particular, in simulators to simulate on-screen real situations and all kinds of training situations when training pilots, athletes, operators of automated controls, and so on. d.

Devices for reproducing the first and second order curves are known, which include adders of sine and cosine function increments, transfer gates, reversible counter-recorders, addition-subtraction control circuits, angle counters, quarter control circuit, correction counter and integration circuit pj.

The specified device is used to reproduce arcs of circles on the screen of the electron beam

tubes with coordinate deviation of the beam and cannot be used to reproduce arcs of circles on a raster-type screen, and even more so in a segment of a television raster.

The closest in technical essence to the present invention is a device that contains six comparison units, position counters in X and Y coordinates, a control unit, a television receiver, a video amplifier, a backlight driver, a vector end point code register in a Y coordinate, memory box , X increment code register, cumulative adder, first, second and third X code registers, control block, logic block, trigger, decoder and delay block. The first, second, fifth, and sixth comparison blocks are connected to a position counter along the Y coordinate associated with the sync generator. The synchronous generator is connected to the control unit, with a position counter along the X coordinate and a television receiver connected to the video amplifier. The video amplifier is connected to a signal shaper under the light connected to the third and fourth comparison blocks connected to the position counter by the X coordinate. The vector end point code register by coordinate Y is associated with the second, sixth comparison blocks and memory block. The memory unit is connected to the serially connected register of the increment code along the X coordinate, on the saving adder and on the first register of the code on the X coordinate associated with the control unit. The logic block is connected to the first, second, fifth and sixth comparison blocks, with, control blocks and a cumulative adder. A position counter at the Y coordinate, intersecting a vector, is connected to the first and fifth comparison units, to the memory unit and the logic unit. The second code register for the X coordinate is associated with the first code register for the X coordinate and the third unit of comparison. The third code register for the X coordinate is connected to the cumulative adder and the fourth comparison block. The trigger is connected to the register code of the increments along the X coordinate and to the illuminator signal generator. The decoder is connected to the position counter along the X coordinate and the control unit. The delay unit is connected to the deflector, the trigger, the first, second, and third code registers on the X coordinate, to the cumulative adder and the increment code register on the X coordinate, to the position counter on the Y coordinate intersecting the vector, and to the vector end point code register on the coordinate At T2. The drawback of the device is that it does not allow reproducing a curved line between any two points of the segments of the television raster. The purpose of the invention is to expand the functional capabilities of the device by providing a display of the first and second order curves. The goal is achieved by introducing the second quadrant quadratic increment code register into the device, the first inputs of which are connected to the output of the first delay unit, the second inputs to the fifth and sixth outputs of the memory unit, the third input of the second adder is connected to the output of the register linear increment code, the fourth input - with the output of the register of quadratic atic-. Fifth input - with the output of the first decoder, the first and second output - with the six input of the first adder and the third input of the first trigger, the third output with the input of the second decoder, the first input of the second trigger connected to the output of the second decoder, the second input to the output the first delay block, the third input to the output of the first decoder, and the output to the fourth input of the illumination signal generator, and the second delay block, the input of which is connected to the first output of the Logic block, and the output to the seventh input of the first and fifth input to orogo adders respectively. The drawing shows a block diagram of the proposed device. The device contains a counter 1 of the positions on the Y coordinate, the first block 2 of the comparison, the second block 3 of the comparison, the register 4 of the code of the end point of the curve, the coordinate Y, the block 5 of memory, the register 6 of the linear increment code the first adder 7, the first register 8 of the code of X, control unit 9, fifth comparison unit 10, sixth comparison unit 11, backlight generator 12, position counter 13 in the X coordinate, video amplifier 14, television receiver 15, synchronizer 16, third comparison unit 17, fourth comparison unit 18, logic unit 19, counter 20 pos y, intersecting the curve, the Y coordinate, the second register 21 codes on the X coordinate, the third register 22 codes on the X coordinate, the first trigger 23, the first decoder 24 and the first delay block 25, the register 26 quadratic increment code, the second adder 27, the second block 28 delays, the second decoder 29 and the second trigger 30. The counter 1 positions, along the Y coordinate, is intended for counting pulses, following with the frequency of television lines, during each macro line of one frame. The first and fifth blocks 2 and 17 of the comparison compare the codes received from the counters 1 and 20, the first block 2 of the comparison determines the equality in the codes, and the third block 17 compares the inequality (more or less codes. The second and fourth blocks 3 , 18 comparisons are intended to determine the equality and inequality of the codes of the current TV lines from counter 1, and of course the curve curve point coordinates in the Y coordinate from register 4. Register 4 code of the curve end point along the coordinate -Y stores the coordinate code U at the end point of the curve Block 5 ti stores data on all cr the output of the first and second threshold displayed on the screen of the television receiver for one frame.The register of the linear gain code is for storing the linear increment code with the sign for the segment preceding the current one. The first adder 7 serves to obtain codes for the X coordinate corresponding to curve on the current body of the viewing line. At the beginning of each segment, the first adder 7 records from memory block 5 a code along the X coordinate of the starting point of the curve. The first register 8 of the code along the X coordinate is intended for storage codes for the X coordinate corresponding to the curve for the preceding television line. The control unit 9 generates polling signals of the logic unit 19 and the signals for performing code rewriting from the first adder 7, and the first register 8 of the code according to the coordinates of the third and sixth blocks 10 and 11 compare the moments of coincidence of the codes stored in the second and third registers. and 22, with the current position code along the X coordinate. The illuminator driver 12 generates a video signal corresponding to a curve on the current television line. The counter 13 of the positions on the X coordinate is intended for counting the pulses corresponding to the positions on the X coordinate. The counter width corresponds to the segment size. X coordinate. At the end of each segment, when the television line is scanned, counter 13 is reset to zero. Video amplifier 14 serves to amplify the signal coming from the 3 generator of the 12 signal of the high frequency,; The television receiver 15 reproduces on the screen video pulses corresponding to the curves of the first and second order. The clock generator 16 generates standard synchronization signals, which include frame and line scan pulses, damping and synchronizing pulses. A mixture of these signals is fed to the television receiver 15. In addition, the clock generator generates signals corresponding to the positions along the coordinates. X. Logic block 19 is designed to generate signals corresponding to certain signals t of outputs of the first, second, third and fourth blocks of comparison. The counter of the 20 positions representing the curve, according to the Y coordinate, serves to store the coordinate Y of the starting point of the curve and counting the pulses following them with the frequency of the television lines, starting from the starting point of the curve and ending at the end. The second and third registers 21 and 22 codes on the X coordinate are used to store codes corresponding to the beginning and end of the curve on the current TV line during the current segment. The first trigger 23 serves to store the sign of the code of the total increment of the X coordinate in the current segment. The first decoder 24 is designed to form a signal corresponding to the segment size along the X coordinate. This signal is used in control block 9 as the beginning of the current segment and serves to set the second and third registers to zero and 22 codes on the X coordinate and trigger 23. Delay 25 generates a signal delayed by a half period of pulses, following from the output of the decoder 24. This signal serves to copy the data calculated in the previous segment from. , first adder 7, first register. 8 codes for the X coordinate and the sign of the second adder 27 for the third and second codes registers for the coordinate and first trigger 23, respectively, for the l playback in the current segment. The same signal is required for recording data from memory block 5, which correspond to the curve of the next segment.

Register 26 of the quadratic increment code serves to store the quadratic increment code of the signed string for one segment.

The second adder 27 is designed to obtain a total quadratic increment for reproducing a curve corresponding to a particular television line. At the beginning of each segment, the code of the initial condition with a sign is written from the memory block 5 to the second adder 27. The second delay bikey 28 serves to generate a signal delayed by half a period of pulses from the first output of the logic unit. The second decoder 29 is designed to form a signal corresponding to the zero state of the three most significant bits of the second adder 27. The second trigger 30 serves to control the formation of the backlight signals.

The principle of forming circular arcs is as follows.

The values of the coordinates X of the points of intersection of the curve with the rows of the television raster can be read using the equation of a circle (X-Xy) + + (Y-VO) H, specifying values of the radius R and coordinates of the center X, YQ of the circle. Such calculations are simply implemented in a computer and are very complex instrumental. However, if the points are calculated in a computer, then a large buffer memory is needed to ensure the regeneration mode on the CRT screen. The segmentation method of the television screen, adopted as the basis for reproducing graphic information, requires dividing the displayed curves into micro-arcs related to the specific segments through which they pass. At the same time, in the computer, using the segmentation algorithm, the starting and ending points of each micro-arc in the segment are calculated, and additional data required for hardware reproduction of the micro-arc on the television screen. Additional data include linear and quadratic increment codes, as well as the initial condition code.

Thus, using the segmentation method, it remains hardware to calculate intermediate points

intersections with the lines in the segment of the television raster. It is proposed to calculate the intermediate points of the micro-arc using a mathematical algorithm arising from the following transformations.

By decomposing the equation of a circle in the Taylor series, we obtain the expression

X () - VR -Y X + xi / Xn,

H DU41x% / HnLnL -.

The required accuracy of reproduction of circular arcs on a television screen allows it to be limited to the first two members of a power series.

. Substitute the values of the derivatives V - Y V к х - -I,, XY

the equation

- (X (Y)

Transform the equation using finite-difference apparatus

  Do

Do

Yn - y,

m where d

distance between adjacent TV lines;

n is the number of TV lines between the starting point (Hz, Uz) and the designated point (X, Yn) p2

, -v (-) - CG - This expression is valid for a circle whose center is located at the origin of coordinates. In all other cases, the equation is

 X -Y GH-Jn,

-4 -) (v | The last equation shows that at the point with the coordinate (j, there is uncertainty. Therefore, any point can be chosen as the starting point of reference, except for the upper and lower points of the circles. We denote the coefficients at

via UJ and D, j, respectively

n and n i

 XH-XO

XH-XO equation takes the form

D1-n D2-na.

Xh

Xh +

However, instrumental squaring is very difficult, so it is proposed to replace squaring by summing odd numbers using the well-known formula (2i-1). Thus, the final expression for calculating the points of intersection of the curve with the rows of the television raster is Hnch- (01) -n - (- (02) (25-1). (The expression obtained is implemented in the device for reproducing the curves of the first and second order in the segment of the television raster. The multiplication operations are replaced by n-fold summation of the linear (O) and quadratic (2D2) codes during the calculations calculated in the computer. The operation of the obtained algorithm is analyzed by example. Suppose that you need to reproduce the semicircle from point () to point (,)., Value xjj is written into the cumulative adder. The X value of the intersection point of the curve with the television line (Y-,) is calculated by the formula in accordance with the expression X Xp + 01 -I-D2. Consequently, to get such an amount, in the additional cumulative adder there must be a D2 value, and in the linear increment code register the value is 01. The D2 value in this case is the initial condition code L-1, which is calculated each time in a computer. The value of the X coordinate of the point of intersection of the arc with the line Y-2 according to the formula (X2 Xo + 2D1 + 4D2 is equal to the X coordinate of the previous one or through the points X + D1 h-3D2. From the last expression it is seen that to get Xxj, you need to have a value of 302. And in order to get 3D2, it is necessary to add 2D2 to the value 0 (b) in the previous cycle. Therefore, the value 202 needs to be stored in code register 202 and rewritten into an additional cumulative adder at the moment when the cumulative adder is added linear magnitude 01. The 2D2 value is calculated in a computer and is called a quadratic increment. To confirm the correctness of the conclusions, we find two more intersection points with the following lines: He Ho + ZOI-902 X2 +01 502, X4 XQM01 + .j + 01 + 7D2. the value in the additional cumulative sum of the torus is increased by the value of the quadratic increments 5 202, and this value is obtained by calculating the coordinate of the point of intersection of the curve with the previous television line. To eliminate uncertainties with. When calculating the coefficients 01 and 02, the arc point with any X coordinate, except for X, is selected as the reference point. For example, we select the point with the X-j coordinate as the starting point. In this case, the Xp coordinate is written through X as follows: (the signs 01 and 02 are not taken into account while considering the algorithm). The value calculated in the computer is recorded in the cumulative adder. Let us write the expression of the coordinates X of the points of intersection of the curve with several following lines, + 01 + 02 Xs-301-902 + 01 + 02 "X-, X2, -201-802. The initial condition L 1 is equal to 02. In the additional cumulative adder after the first cycle: 302, X, j X + Dl + 302 X2, -201-802- -01 + 302 Ho, -01-502. In the additional adder 302 + 202 + 502,, -01-502 + 01 + 502 Xa, j + 01 702 In the additional adder X4.X + 01 + 702. In the additional adder 902 4 + 01 + 902 Х + 01 + 702 + 01 + 902 Хз + 201 + 1602. additional adder 1KD2, etc. Thus, it is possible to obtain the coordinate X of the intersection point of a curve by any line in the segment of the television raster. If it is necessary to recreate the arc, which begins, for example, from point Xd, and the calculation leads relative to the initial point X, the coorinate code Xd is written to the adder, and the additional summer, as the initial condition L1, is written to the code 9D2 X4. If the beginning of the arc is a point, then the code L) 1 11372 with the corresponding sign is written into the additional adder. In general, if the arc starts at point X, then 11 (2n + l) -D2. Using the considered algorithm, one can calculate the coordinates of X points of intersection of a curve with rows of a television raster either for the left or for the right semicircles. Two devices are necessary for reproducing the circle, calculating separately the points of the left and right semicircles. Naturally, for the left semicircle the point belonging to the left semicircle P3 is chosen as a reference point, and for the right semicircle it is the point lying on the right semicircle. Depending on the selected reference point, the signs of codes 1 and 2 change, For the right semicircle, and for the left -. The sign of D1 changes with the transition to each subsequent quarter of the circle: in 1 and 111 quarters x in 11 and 1U quarters x JCE. The considered algorithm is implemented in a device for reproducing the curves of the first and second order in a segment of a television raster. The device works as follows. At the beginning of each segment, when developing any television line passing through the segment in question, data is recorded in the device from memory block 5: the code of the initial point of the curve (V) along the Y coordinate, which is recorded into the counter 20 positions intersecting the vector along the coordinate W; the code of the end point of the curve (Y |) along the Y coordinate, which is written into register 4 of the code of the end point along the Y coordinate; the code of the starting point of the curve (Xp) on the X coordinate, which is written to the first adder 7 and to the first register 8 of the code on the X coordinate; linear increment code on signed line (tDl), which is written to linear increment code register 6; a quadratic increment code with the sign (t202), which is written into register 26 of the quadratic increment code; the initial condition code with the sign (, i L1), which is recorded in the second adder 27. Each segment (familiarity) of a television raster contains the same number of positions along the Y coordinate (television lines) and along the X coordinate. With the help of the proposed device, you can display in each segment only one curve connecting any two points in a segment. If two or more curves pass through a segment, then it is necessary to supply the corresponding number of devices in question to be displayed. One device allows you to display on the screen the number of curves corresponding to the number of segments of the television raster. During each macro string corresponding to one horizontal row of segments, the counter I of the positions along the Y coordinate counts the pulses corresponding to the frequency of the television lines coming from the clock generator 16. When switching to a new macro string, the pulse count starts from the beginning. During the sweep of each TV line, pulses (period T) with a frequency corresponding to the positions in the X coordinate are received from the clock generator 16 in the control unit 9. The counter 13 positions along the X coordinate counts the horizontal positions of each segment at each TV line, i.e. included at the beginning of each segment and triggered to zero at the end of the segment. The number of positions on the X coordinate corresponding to the segment is decrypted using the decoder 24. The signal from the output of the decoder 24 enters the control unit 9 and permits the passage of the queue, / j signal L from the output of the clock 16 to the logic unit 19. In addition, the signal from the output of the decoder 24 sets to zero the second and third registers 21 and 22 of the coordinate codes, two triggers 23 and 30 are delayed by half the period T with the help of the delay block 25. The signal from the output 25 of the delay rewrites the information from the adder 7 in the register

13

22, from register 8 to register 21, from the sign bit of the second adder 27 to the trigger 23, and from the output of the second decoder 29 to the second trigger 30. Thus, the information calculated in the previous segment is rewritten to play in the current segment.

At the same time, the signal from the output of the first delay block 25 is fed to the sync inputs of the input blocks 4, 6, 7, 8j 20, 26, and 27, and rewrites the initial data from memory block 5 to calculate the X coordinates required to reproduce the curve on the current television line in the next segment. .ment The code from the output of the counter 1 positions along the Y coordinate (supplied to the first, second, third and fourth blocks 2 and 3 of the comparisons 17 and 18. The second inputs of the first and third blocks 2 and J 7 compare the code from the outputs of the bits of the counter 20, positions corresponding to the curve, according to the coordinate Y. Let's call this code. Initially 0 - The second inputs of the second and fourth blocks 3 and 18 of the comparison receive the code from the outputs of the bits of register 4 of the code of the end point of the curve along the coordinate Y (UP). The comparison blocks form one of three possible signals are greater, equal or less. The drives from the outputs of Comparative Blocks 2, 3, 17, and 18 go to logical block 19 where they are polled by the signal T received from control block 9. First, the outputs of the first and fifth blocks 2, 17 are polled, and three situations are possible.

. USR UO or If US.-GR UO then from the output of logic block 19 the signal (4) will go to control block 9 and close the output for signals. Thus, until the television scan reaches the beginning of a curve in this segment, the device immediately stops all work.

If O then, from the output of logic block 19, Vits (2), which goes to the synchronous inputs of adder 7, the information inputs of which receive a code from the outputs of the bits of the second adder 27, into which the initial condition code (tU) is written at the beginning of the segment

42933.14

Thus, the code (tljl) is added to the contents of the adder 7 (X0) and the sum (Xd ± - i) is obtained in the adder. Thus, the code (-Ll) is added to the contents of adder 7 (XQ) and the sum is obtained in the adder

(XO ± LI).

In addition, the signal t in the logic block 19, delayed by 1 / 2t, 10 is Wits at the output (G) and is sent to the second synchronous inputs of the first ammeter 7. The second information inputs of the last are supplied with a code from the output of the bits of the code register of the 15th increments 6 ( ± D1). Now in sum 7, a sum is formed (XjjKltOl).

In addition, simultaneously with the signal (G) at the output of the logical block 19, the signal (4), which

20 will stop the flow of signals f

from the output of control block 9. At the end of the sweep line of this segment, the signal from the output 25 of the delay will overwrite the code of their adder 7 into register 22 and the code

25 from register 8 to register. 21 to display these values when a line is being scanned in the current segment. Thus, Xj codes arrive at playback; and (X (j ± liltDl). The signal from the output of the first delay block 25 will also overwrite the next data from memory block 3 into the input blocks.

Now consider the case when the expandable line crosses

5 curve, i.e. The signal f in the logical block 19 simultaneously polls the outputs of the second and fourth blocks 3 and 18 of the comparison. In this case, it is necessary to determine the position

0 the current line relative to the end point of the curve.

If, then the operation of the device stops, as the expanding line in this case passes

5 below the end of the curve and nothing is required.

If the logical block 19 generates a signal (1), which, firstly, enters the input of the counter 20 positions, the intersecting curve, along the Y coordinate, and adds one. Thus, a VCTP ° Secondary code will be generated on the counter, this signal will set the first register's 8 register to zero in the X coordinate. The same signal from the output (2) of the logic unit 19 will overwrite the code from the second adder 27 to the first adder 7, and the signal from the output (K) rewrite the code

from register 6 of the linear increment code also into adder 7, in the sum of matrix 7, a zhzmma is formed (X tLltDy

In addition, the signal (l) from the output of the logic block 19, delayed for 12 s. using the delay block 28, it enters the synchronous inputs of the second adder 27, the information inputs of which are connected to the outputs of the bits of the register 26 of the quadratic increment code. As a result, the sum (tl, l ± 2D2) is formed in the second adder. In this case, the signal (“ i) at the output of logic block 19, therefore, the next signal t will pass through control block 9, which, first, will overwrite the content of the first adder 7 into the first register 8 of the code along the X coordinate. Second, the T signal will again be sent to the logical block dp of the poll all comparison schemes.

Now codes Usgr and YCTP YQ. + 1 are compared. There are two options for USGR + YO + 1 or Y (YO + 1). If YO H the code from the second adder 27 (2D2) and the code from the linear increment code register (tDl) are added to the contents of adder 7 (XotLlt fDl). As a result, the sum (X (j ± 2Ll ± 2D2t2Dl)) is formed in the combinator 7. The code (± L 1 ± 202) will remain in the second adder 27.

In the case of Yj, (Yo + l), the same sum is formed in the first adder 7, and a new sum (ptLl ± 2D2) ± 202 is formed in the second adder, i.e. quadratic increment will be added again.

At the counter 20 positions crossing the curve, one more impulse will arrive at the Y coordinate. Now on the counter 20 there will be a code of the number {Y0 + 2). The same impulse will set the zero first register 8 of the code along the X coordinate, and the third impulse will overwrite the contents of the adder 7 into the register 8, etc. as long as in counter 20, the code Y is not equal to the code of the current line.

Then, from the output of the C4) logic block, a signal that prevents the passage of the next signal G is passed, and the register obtained in the previous calculations is stored in register 8.

At the end of the segment, in addition to the calculated data being rewritten into registers 21 and 22 for reproduction, the code (± 01) from the linear increment krda register will be overwritten into the second adder 27 using a signal from the output of the decoder 24. Thus, in the second adder a full the sum of linear and quadratic increments (and

If, then the three most significant bits of the second adder 27 will be in the zero state. If t, then at least one of the three most significant bits will be in state 1. The decoder is connected to the three most senior bits of the second adder.

29.If in the three indicated bits, ul, then at the output of the decoder 29 a signal is received which will be overwritten at the end of the segment into the second trigger

30.So, the second trigger 30 will be in a single state during playback.

if the total increment is less than or equal to the discrete count of the string.

Consider the operation of the reproduction scheme. The outputs of the bits of the second and third registers of codes 21 and 22 on the coordinate J are supplied respectively to the inputs of the fifth and sixth blocks 10 and P comparison, the second inputs of which are connected to the outputs of the bits of the counter 13 positions along the X coordinate. Once in the counter there are 13 positions along the X coordinate A code equal to the code recorded in one of the registers 21 or 22 is set to the output of the corresponding comparator block. In the case of T, the signal is outputted at the output of the sixth comparison unit 11, passes through the signal conditioner 12, since the second trigger 30 is in the one state, and through the video amplifier 14 will go to the television inverter 15, where it will be displayed as a speaker line corresponding to the coordinate code written in register 22.

In the case of (i T the codes in the registers 21 and 22 of the reproduction will differ by the amount of the total increment. In this case it is necessary to display the line segment between the points whose codes are recorded in the registers 21 and 22 of the reproduction.

Claims (1)

In this case, two cases are possible which depend on the direction of the curve. which is determined by the sign of the total increment cb. At the end of each segment, the value of the sign bit of the second adder 27 (sign 6) is rewritten to the first trigger 23 which controls the jjHBT shaper 12 of the backlight signals in the playback mode; Depending on the sign (at the shaper 12, the backlight signal is generated by the strobe either from the coordinate. (-6) t or from to (X + 6). The illumination strobe from the output of the driver 12 will pass through the video amplifier 4 to the television receiver 15 5 where The second input of the television receiver I5 receives a sync mixture from the output of the clock generator 16. The use of such a device requires a preliminary splitting of the curve displayed on the screen into left and right curves relative to the vertical axis passing through .25 center of the screen, as well as splitting into segments. Such splitting is carried out in a computer according to a specially developed algorithm. If earlier, to display the computer curves, it calculated all the intersection points of the curves with the lines and transferred them to the display, now for the product, for example The circumference needs to transmit only the center and the radius. From the given center and arc radius and coordinates of the reference point, the display microcomputer calculates the initial conditions (UO, V „, X., tDl, t 2D2, tLl) to reproduce the curve in the television segment ion raster. The invention The device for displaying information on the screen of a television receiver, containing six blocks of warping, the first inputs of the first, second, third and fourth connected to the output of the counter along the coordinate Yj connected to the clock generator, the outputs to the logical block, the second inputs of the first and third blocks comparison with the counter outputs of the intersection positions of the curve along the Y coordinate, and the second inputs of the second and fourth blocks of the comparison .3 with the outputs of the end point register along the Y coordinate, the first inputs of the counter position The intersection of the curve along the Y coordinate and the endpoint register along the Y coordinate is connected to the first and second outputs of the memory block, respectively, the third output of which is connected to the first inputs of the first adder and the first code register on the X coordinate, respectively, the fourth output of the memory block is connected to the first the input of the linear increment code register, the second input of which is connected to the output of the first delay unit, to the second inputs of the counter of the intersection positions of the curves along the Y coordinate, the register of end points along the Y coordinate of the first the adder, the first, the code register for the X coordinate and the first inputs of the second register of codes for the X coordinate, the third register of codes for the X coordinate and the first trigger, the second input of which is connected to the output of the first decoder, the first input of the control unit, the second inputs of the second and third code registers on the X coordinate and the input of the first delay unit, the second input of the second register of codes on the X coordinate is connected to the output of the first register of the code on the X coordinate, the third input of which is connected to the output of the first adder and the third input t of the second register of codes on the X coordinate, the fourth input of the first register of the code on the X coordinate — with the first output of the control unit; the fifth input — with the first output of the logic block and the third input of the counter of curve intersection positions along the Y coordinate; the second and third outputs of the logic block — the third and fourth inputs of the first adder, the fifth input of which is connected to the output of the linear increment code register, a fourth output to the second input of the control unit, the second output of which is connected to the seventh input of the logic unit, the third the control unit's stroke — with the second output of the synchro generator, the counter input of the X coordinate, the output of which is connected to the input of the first decoder, the first inputs of the fifth and sixth comparison blocks, the second inputs of which are connected to the outputs of the second and third coordinate registers by coordinate X, the outputs The fifth and sixth comparison blocks are connected to the inputs of the