SU1606991A1 - Device for displaying information on crt screen - Google Patents

Abstract

The invention relates to automation and computer technology and can be used in computer output devices and automated control and monitoring systems in which a cathode ray tube is used as an indicator. The purpose of the invention is to increase the speed of the device by introducing a second trigger 11, an element OR 23, a second group of elements AND 22, a converter 7 of codes, keys 19 and 18, adders 20 and 21, a driver 15 for the bias voltage and the corresponding functional connections. When the occurrence of a fault, the invention allows not repeating a contour of a micropigram from the beginning of the first moment, and, using an algorithm, detects and promptly eliminates the effect of multiple failures. The technical advantages of the invention are that the increase in the speed of the device is achieved through the introduction of technical tools for the analysis and accelerated processing of the micro polygram's illumination code, while the increase in speed is achieved by reducing the time of formation and correction of the image. 3 hp f-ly, 7 ill.

Description

35

;about

A cathode ray tube is used as an indicator. The purpose of the invention is to increase the speed of the device by introducing the second trigger 11, the element OR 23, the second group of elements AND 22, the converter 7 code, the keys DE and 18, adders 20 and 21, the bias voltage generator 15 and the corresponding functional connections. The invention allows, in the event of a failure, not to repeat the contour of a micro-program from the beginning of the first moment, and

Algorithm to detect and quickly eliminate the effect of multiple failures. The technical advantages of the invention are that the increase in the speed of the device is achieved through the introduction of technical means of analysis and accelerated processing of the micro-polygam illumination code and, at the same time, by increasing the speed, the formation time and image correction are reduced, 3 hp, f-ly, 7 .

The invention relates to automation and computing and can be used in computer output devices and automated control and monitoring systems in which a cathode ray tube is used as an indicator.

The purpose of the invention is to increase the speed.

Figure 1 presents the functional diagram of the device ;, in Fig, 2 -. functional diagram of shaper 1Y (illumination pulses; 4ig, 3 - functional diagram of the synchronization unit; figure 4 - functional diagram of the bias voltage shaper; figure 5 - functional diagram of a programmable logic matrix (CLM); figure 6 (a, b) - diagrams of deflecting voltages in the X and Y coordinates for

a set of micropolygramms and a generalized figure -.polygram; FIG. 7 shows the irregular diagrams of the operation of the device during the formation of. Symbol A,

The device for displaying information contains a pulse generator 1, a pulse distributor 2, a switching unit 3, a micro-selection block 4, a decoder 5, a register 6, a code converter 7, a control block 8, a backlight pulse former 9, Tpijrrepbj 10 and 11, a block 12 synchronization, the formers 13 and 14 of the deflecting voltages at the coordinates X and Y, respectively, the shaper 15 offset displacements, the delay element 16, the first group of elements And 17, the keys 18 and 19, the adders 20

-

0

five

d

five

and 21, the second group of elements And 22 element SH 23.

Converter 7 codes consists of a register 24 and CLM 25,

Positions 26-31 denote the Start signal input, the Symbol code input, the highlight pulse output Z (t), the signal input the End of the symbol, the deflection outputs of the unit voltage Uy (t) and and, (t) of the device.

The illumination pulse generator 9 (FIG. 2) contains a decoder 32, multiplexers 33 and 34, shift registers 35-37, elements OR-NOT 38-40, 2-2-SH-41, AND 42-48, OR 49-51, NOT 52, delays 53, counter 54, positions 9.1–9; 5 and 9.6–9.12 designate the inputs and outputs of the imager.

Synchronization unit 12 (FIG. 3) contains elements 3-3-ZI-ShSh 55, 2-2I-OR 56, OR 57-59, AND 60 and 61, delays 62, distributor 63 pulses, and positions 12.1-12, 9 and 12.10-12.12 marked its inputs and outputs.

Shaper 16 of the bias voltage (Fig. 4) contains switches 64-68, inverter 69, elements OR 70 and 71, load element 72 in the form of a resistor and trigger 73, positions 16.1-: 16.3 and 16.4-16.5 denote its inputs and exits.

The formation of symbols is implicit from a particular polygram defined for each symbol, of a wave, each of KOTopbix, in turn, is formed from a fixed number of RH, J, micrograms. In each micropigram n "elements of its components. In the sentence, n 5. The beginning and end of the micropigram coincide with the origin of the dating, i.e. microgroups have a closed structure. The set of micropolygramms R and the individual polygrams M formed from them is chosen so as to ensure the formation and display of a given alphabet of symbols. The number of elements in a micro-program and the possible set of micro-games is determined by the complexity of the images that make up the displayed alphabet. The complexity of the images is determined by the required accuracy, or by the very structure of the images.

Pulse generator 1 generates a periodic sequence with

period

-in s

where t is the time of formation - 20

per element of microspoligram, S is a coefficient. The time t is chosen from the condition of ensuring the return of the electron beam of a CRT from any point of familiarity to the origin of its coordinates. The input of generator 1 is connected to the input 25 of the Start signal, and the output is c. input 12.2 block 12 synchronization.

The pulse distributor 2 operates in such a way that only one of its outputs can be consistently in the excited state. The number of outputs of the distributor 2 pulses is determined by the number of familiarity (n) constituting a micropolygram, i.e. - to each output of the distributor 2, a well-defined element of the micropigram is matched. In the initial state, none of the outputs of the distributor 2 is energized. It is transferred to this state by the action of an incoming signal to its input, the O setting of the output 9.8 of the driver 9, the backlight pulses. This signal is the signal of the end of the formation of the last of the necessary elements of each formed micropigram and transfers the distributor 2 to the original cofc regardless of the state in which it was before the arrival of this signal. The time of excitation of each output of the distributor 2 pulses is determined by the value of the illumination code of the formed element of the micropigram. This is taken into account in block 12, which, from its output 12.P, supplies a signal of the corresponding frequency to the control input of the distributor 2 and 20

pulses. If the illumination code is O, then the change in the state of the distributor 2 pulses occurs with the frequency of the pulse generator 1. If the highlight code is 1, then this change occurs after time t.

Switching unit 3 is designed so that, depending on the state of the outputs of block 4, the choice of micro-polygrams, the outputs of the And 22 elements, and through them the outputs of the distributor 2

the pulses were switched through elements AND 17 to the inputs of the corresponding formers 13 and 14 so that the output voltage of the last voltage was removed, necessary for the formation of only that micropigram, which corresponds to the excited output of block 4.

The register 24 is the input register-g, the strom of the code converter 7 and is intended for joint storage of the unitary code generated at the output of block 4, and the unitary code formed at the second - fifth outputs of the distributor 2 pulses. For this, register 24 is the first information input. D1 is associated with the outputs (from the second 30th to the fifth) of the distributor 2 pulses, and the second information input 02 with the output of block 4. The change of information in the register 24 occurs on a signal. The permission at the control input is 25, which is formed depending on the state no triggers 10 and 11.

The illuminator pulse driver 9 serves to control the illumination of a CRT electron beam (not shown). For this, its output -9.6, the corresponding control signals are output to the output 28 of the illumination pulse. The shift registers 35-37, when the symbol code is fed into the device, record the illumination codes 5 necessary for the formation of micro-polygrams. The control inputs, which are used to shift information in the registers 35-37, are connected respectively via elements AND 42-44 to the outputs of the decoder 32, as well as to the input 9.4 of the block 9. This allows control of the sequence of the registers 35-37 the shift to the input 9.4, which is connected to the output 12.10 of block 12. In the initial state (before the arrival of the signal, start at input 26) the pulse counter 54 and the shift registers 35-37 are in O. The counter 54 changes its

0

five

the state of the Start signal and the signal of the end of the processing of the illumination code of the next micro-polygram. The last form 1 is output at the output of the corresponding element OR-NE, 38 or 39 and through the elements 2-2-OR 41, OR 51 and delay 53 is input +1 counter 54. Element 53 serves to delay the signal, which determines the beginning of the next micro-program, by setting the 2 distributor pulses in O (after the previous Micro-Digram has completed forming). After the last Micro-Digger has completed forming the output element and OR-NOT 40; through the element. And 45 produces setting O of registers 35-37 of shift, counter 54 and through input 9.7 of register 7, moreover, the element OR 50 is cut. And output 9.8 sets to O, block 4, the distributor 2 pulses and, arriving at input 12.8 of block 12, through the element OR 57 sets to O. distributor 63 pulses Multiplexers 33 and 34 are used for switching to the outputs. 9ii9-9,11 shaper 9 signals corresponding to the values of the youngest and the next after it bits of the micro illumination code. Supplied to the address inputs of multiplexers 33 and 34, the address of the switching register and shift offset is removed from the outputs 1 and 2 of counter 54. The output of multiplexer 33 is connected via the And 46 element to the output 28 of the device's backlight pulse.

The device operates in the modes of formation and image correction,

Trigger 10 for setting the operating modes of the device. The single input of this trigger is connected to the output of the control unit 8. In the initial state, the trigger 10 is in O,

Trigger 11 (O-flip-flop enabled by T-flip-flop) is designed to disable pulse output 28. illumination and driver outputs (via keys 17, 18 and adders 21–20), respectively, from the modulator and deflecting CRT systems (not shown). In the initial state, the trigger 11 is in O, and the signal from the zero output keeps the element 13 and 14 through the element OR 23 in the initial state and allows writing information to the register 24, In the imaging mode, when the code for the illuminator is

0 5

YU

five

0

The micropigram element being matched is Cr%; this state of trigger 11 does not change. A zero signal is removed from the inputs and outputs 28, 30, 31 of the device. In this case, an accelerated (with the frequency of the pulse generator 1) shift of the illumination code in the driver 9. Well, the trigger output 11 connects, besides, to the reverse inputs of the AND elements 22 "This allows shutting off the outputs of the distributor 2 pulses from block 3" Trigger 11 is switched to one state when the illumination code of the formed element micropig-1m.o1 becomes equal. In this case, the illumination code is shifted with the frequency of the overflow pulses to spread Aeji HTCJTH 63 pulses, from the output 28, a single signal is removed, enabling the CRT electron beam, and the required deflection voltages are removed from the outputs 30, 31.

Block 12 provides the synchronization of the elements and units of the entire device, it generates control signals to transfer the pulse distributor 2 and the trigger 11 from one state to another and to shift the code of the micropigram backlight in the driver 9. 12.2 unit 12 is connected to the output of the pulse generator 1, with one output of elements 2-2И-ИЛИ 56 And 61 and. With three inputs of elements 3-3-ZI-OR 55, The distributor 63 of pulses is designed to divide the pulse frequency arriving at input 12.2 from the output z pulse 1, at S () t St, where is the time required to form one element of micropolygram- Mbij cycle time of the distributor 63 pulses S is the coefficient of proportionality; t is the period of specialization of the impulses of the generator of the pulses 1, is determined from the condition of providing the return time of the electron beam of a CRT from any point of familiarity to the beginning of its coordinates. The pulse distributor 63 functions in such a way that only one of its parallel outputs, (not shown), can be in series in an excited state. In the initial state, none of the outputs of the distributor 63 is excited. In addition, under the influence of the signals coming from the output 9.8 of the driver 9 on

ten

20

25

1606991

input 12.8 and from a single output (Error signal) trigger 10 to input 12.1, valve 63 through the element OR 57 is reset to the initial state regardless of what state it was in before. Block 12 produces at its outputs 12.10- 12.12 control signals depending on the values of the low order and the next bits of the illumination code of the formed micro polygram. Moreover, if these values are the same (not the same), then the control signal at output 12.12 is equal to zero (one) and the trigger 11 retains (changes) its state during the transition to the formation of the next element of the micro polygram. 3 at the same time, if the contents of the low-order bit of the current shift register of the imaging unit 9 is 0, then the backlight code is shifted and the state of the pulse distributor 2 is changed at the pulse generator frequency 1, or at the frequency of the distributor overflow pulse 63 pulses. For this purpose, output 12.11 of unit 12 connected to the control input of the distributor 2 pulses through elements AND 61, OR 58, And 60, OR 59 is connected to input 12.2 connected to the output of generator 1 pulses, and through the second input of element 58 58 the output of the pulse distributor 63, on which its overflow signal is generated. In addition, the output of the element OR 58 (output 12.10) is connected to the input 9.4 of the generator 9, which provides control of the shift of the code of the backlight of the microgram. Thus, the distributors 2 and 63 of the pulses and their connections provide accelerated processing for the micro illumination code. The delay element 62 delays the signal from the output of the delayer element 53 of the transmitter 9 until the signal appears at the output of the HE element 52 (output 9.9, input 12.7), corresponding to JQ inverse of the code of the signal of the first element of the next generated micro-polygram. By its output, a delay element 62 is connected to a single input of a 2-2-OR 56 element.

PLA 25 is designed to convert a twelve-bit code written into a register 24 into a four-spark code, the bits of which are determined by .35

15 - l

nnm l you el ca cha el mi in

in but

thirty

what

40

in the meantime (for 45 mic inputs

otk ot and 1 fla

out

55

ten

20

25

06991

Q

five

ten

the values of the control signals for the bias voltage generator 15 are divided. The PLA 25 shown in FIG. 5 determines its configuration for the implementation of the following logical expression system:

Y, x3x5Vx5Vx1x6 / x2x6 / x1 x7 L4x81 / Vx3x9Vk4x9t 1x10i.-k2x10 x2x1 1s / x3x11v Vx2x12 / x3x12; (g)

UL x1 x5v x4x6v x3x7Vx4x7 / x1x8 / x2x8V Vx1x9Vx4x10; (9)

Y, x1 x5 x2x5 / x3x5 / x2x8 x3x8vl {4x8vx x2x9vx3x9Vx1x1 1Vx2x1 1v / x1x12; (10) 15 x2x6vx3x6vx4x6 c1x7v x2x7- / x3x7v / - x2x10 x3x1 Ov x4x1 1 / x3x12, x4x12. (11) The above expressions are given by the correspondence table.

The bias voltage generator 15 is designed to generate reference voltages that, depending on the values of the control signals at its inputs 15.3, associated with the output of the PLA 25, shift the electron beam of the CRT in a jumpwise manner relative to the origin of the familiarity of the place to start any necessary element of the micropigram . The outputs of the imaging unit 15 are connected to the same inputs of the keys 18 and 19, respectively. Input 15.1 is connected to input 26, and input 15.2 is connected to input 29.

The delay element 16 in the image correction mode sets the trigger 10 to the state O

thirty

through time t required for

return electron beam CRT to the origin of familiarity. For this, the BELOW input is a delay element 16 connected to a single output of trigger 10, and an output to the zero input of the same trigger. In this way, it is ensured that the outputs of the unit 3 (for the re-formation of the micropigram element) are connected to the corresponding inputs of the formers 13 and 14 through the elements And 17.

Elements 17 are designed to disconnect the outputs of block 3 from the corresponding inputs of the formers 13 and 14 of the deflecting voltages when an error occurs at the output of the control block 8 and put the device into image correction mode (trigger 10 in state 1). To do this, the other inputs of the elements And 17 are connected to the zero output of the trigger 10.

The keys 19,18 serve to disable the outputs of the former 15 from the corresponding

n16

corresponding adders 21, 20 to those intervals of the device operation time when the illumination code of the element of a micropigram is 0, ie when the trigger 11 is in the state O, this other inputs of the keys 19, 18 are connected to a single output of the trigger 11.

The adders 21 and 20 are designed to add the reference voltages of the driver 15 to the voltages at the outputs of the respective drivers 13 and 14 of the deflection voltages. The outputs of the adders 21 and 20 are connected respectively through the outputs 30 and 31 to the deviation to the CRT CRT systems.

The element OR 23 provides, in case the trigger 11 is in the state O or the trigger 10 in the state 1, the formation at its output of a signal permitting the recording of information in the register 24, as well as setting the shaper 13v and 14 This input is connected to the one output of trigger 10 by one input, the second input to zero output of trigger 11, and the output to control input of register 24 and installation inputs O of drivers 1 3 and 14.

The device works as follows.

: At input 27, the symbol code, the signal is recorded. In registers 6 and 35-37 in such a way that in registers 35-37 the p-code of the illumination code is stored (in the proposed device the number of registers K / "in 3, in each register 35-37 the illumination code is stored in one of the micro-polygrams being formed) and in the bit register. code for my polypigram, which is converted by decoder 5 into K-: element code, preparing block 4 for operation. Block 3 is connected to the first excited output of block 4, corresponding to the formation of a micropigram with the minor number. The Start on input signal; og 26 starts the pulse generator 1, sets the trigger 73 of the driver 15 to the state 1, thus preparing it for operation. The key 64 is opened, and the reference voltages, + U, and through the inverter 69-U are supplied to the same inputs of the keys 65, 66 and 67, 68, respectively, which are opened

one

12

depending on the values arriving at their other inputs of control signals from 1SM 25 at input 15.3. In addition, the Start signal is fed to input 9.2 of the driver 9 and, having passed through the OR 51 and delay 53 elements, puts counter 54 into state 01. This state of counter 54 corresponds to a single signal at output 1 of the decoder 32, as well as the address at which multiplexers 33 and 34 commute the values of the lower and the next bits of the shift register 35, where the illumination code of the first generated micro-polygram is written. The low-order bit is fed from the output of multiplexer 33 to output 9.10 of the driver directly, and through the element HE 52 to output 9.9. the inverse low-order value is supplied. The value of the next bit is supplied from the output of multiplexer 34 to output 9.11 of the OR 49 element. At the same time, the signal from the output of the delay element 53 through the OR 59 element of the block 12 sets the distributor 2 pulses to the state when its first output is excited.

Consider the first case when the code value of the illumination of the first element of the formed micropigram (the contents of the low-order register 35 of the shift of the former 9) is 1. Then a single signal is removed from output 9.10, and zero from output 9.9. Trigger 1Gv of the initial state, i.e. in state O. In this case, a single signal from the output prevents the pulse 2 from the outputs of the distributor to pass through the group of elements AND 22 and block 3, as well as through the element OR 23, the same signal shapers 13 and 14 of deflection voltages are kept in the initial state and recording from the outputs of block 4 and the distributor 2 pulses to the register 24 is permitted. The state of the distributor 2 pulses, when only the first output is energized, corresponds to a zero bias voltage at the output of the bias voltage generator 15. The first pulse from the output of the generator 1 through the element. AND 61 of the block 12 does not pass, but after passing through the element 2-2-OR 56, the distributor 63 of pulses is transferred to the state when its first parallel output is excited (parallel

13

the outputs of the distributor 63 pulses are not shown in FIG. 3), and through element 3-3-ZI-OR 55 translates trigger 11 into one state (into the average group of AND connected through elements of elements 3-3-ZI-55 55 simultaneously single signals are given at the input 12.3 from the zero output of the trigger 11, at the input 12.6 - from the output 9.10 and at the output 12.2 - from the output of the pulse generator 1). At the same time, the signal at the inverted inputs of a group of elements And 22, equal to O, of the drivers Shaper 13 and 14 of the deflecting voltage and the write enable signal to the register 24 becomes equal. The signal from the single output of trigger II releases keys 18 and 19. Block 3

160699 14

a limiter 63 pulses appears overflow signal, which, having passed through the elements OR 58, AND 6.0 and OR 59, puts the distributor 2 pulses into a state when its second output is excited. This means that the formation of the first element of the micropigram ends and the device goes

10 forming the second element. Simultaneously, the signal from the output of the element OR 58 enters the driver at input 9.4 and through the element 42 produces a shift of the micro illumination code of the micro polygram.

, in shift register 35. Thus, the lowlight code of the second element of the micro-polygram generated by the device is rewritten in time to the low-order bit of the shift register 35. At the same time, it begins to function in accordance with the analysis of the code of the illumination of the first

VII with the described algorithm, i.e. On each clock cycle of the distributor 2 pulses, a four-element code is formed at the outputs of block 3, the device is controlled by the device's south element and under the backlight of the second element of the micro polygram, the value of which is removed from the output through the multiplexer -15 and 17 through the OR 49 element

l mi 13 and. 14. The trigger 10 is in the initial state (state O) and determines the mode of operation of the device) formation of the image. From the outputs of the formers 13, 14, the voltages are removed, providing through the adders 21, 20 and the deflecting systems of the CRT (not shown) moving within the familiarity of the electron beam of the CRT relative to the point corresponding to the offset voltages removed from the outputs of the former 15. The signal O (1) from the zero output of the trigger 11, arriving at input 9.5 of the imager .9, enables (prohibits) the supply of a highlight signal through element And 46 from the output of multiplexer 33 to output 9.6 and output 28 Z (t). The second impulse through -.element 3-3-ZI-OR 55 of block 12 is already

fed to a driver output 9.11. 9. There are two options.

If the highlight code value of the second element of the micropigram is 1,

30 I o the fourth pulse from the output of generator 1 through element 3-3-ZI-OR 55 of block 12 does not pass, since in the howl (according to the scheme of FIG. 3) the group of I and its inputs combined signal is 12.7 from output 9.9, equals oh in

the average group of inputs is equal to O signal at the input 12.3 from the zero output of the trigger 11, in the left group of inputs a single signal at the input 12.5 from the output

dd 9.11 is fed to the inverse input,

trigger 11 remains in a single state.

If the highlight code value of the second micropigram is O,

If the highlight code value of the second micropigram is O,

50

does not pass, since the signal from zero-45 ° fourth pulse from the output of the generator 1 passes through the element 3-3-ZI-OR 55 of the block 12 (simultaneously on the left group of the combined inputs AND of the element 3-3-3 ZI-55 55 - respectively, an overflow signal from the output of the distributor 63 pulses, a zero signal to input 12.5 from output 9.11 and a pulse from the output of generator 1 to input 12.2) and switches trigger 11 from one to zero, a single signal from zero output of trigger 11 goes to inverse the inputs of the elements And 25 and prohibits the filing of signals from predelitel 2.

The first output of the trigger 11 is equal to O. This impulse, passed through element 2-2 and -56 (zero to the group grouped by AND of the inputs of this element), simultaneously with the arrival of the second pulse from the output of generator 1, is fed to input 12.6, and a single signal From output 9.10, the distributor 63 pulses are transferred to a new state. The rest of the circuit works as in the first measure. Upon receipt of the third pulse, the device operates as in the second cycle. On the fourth pulse at the exit ra55

a limiter 63 pulses appears overflow signal, which, having passed through the elements OR 58, AND 6.0 and OR 59, puts the distributor 2 pulses into a state when its second output is excited. This means that the formation of the first element of the micropigram ends and the device goes

10 forming the second element. At the same time, the signal from the output of the element OR 58 enters the driver at input 9.4 and through the element 42 produces a shift of the micro illumination code.

, in shift register 35. Thus, the lowlight code of the second element of the micro-polygram generated by the device is rewritten in time to the low-order bit of the shift register 35. Simultaneously with the analysis of the code for highlighting the first

about the analysis of the highlighting code

The first element of a micropigram is analyzed by the device and under the backlight of the second element of the micropigram, the value of which is removed from the output of multiplexer 34 and through the element OR 49

fed to a driver output 9.11. 9. There are two options.

If the highlight code value of the second element of the micropigram is 1,

I o the fourth pulse from the output of the generator 1 through the element 3-3-ZI-OR 55 of block 12 does not pass, since in the howl (according to the diagram of FIG. 3) the group combined by AND of its inputs, the signal at input 12.7 from output 9.9 is equal to O , at

the average group of inputs is equal to O signal at the input 12.3 from the zero output of the trigger 11, in the left group of inputs a single signal at the input 12.5 from the output

9.11 is fed to the inverse input,

trigger 11 remains in a single state.

If the highlight code value of the second micropigram is O,

pulses in block 3, the same signal through the element ShZh 23 is fed to the input of the installation O of the formers 13 and 14 of the deflecting voltages and to the control input of the register 24, the keys 18 and 19 are closed, the single signal from the zero output of the trigger 11 comes in Moreover, the inverter input element And 46 of the imager and prohibits the filing of the code of the highlight on the output of the device.

Consider the second case, when the value of the illumination code of the first eigen element of the formed micro polygram is equal to O. Then, from output 9.10 of the former 9, the zero signal is removed, and from output 9.9 - a single signal. Therefore, the first pulse from the output of the pulse generator 1, which arrives at the input 12.2 of the block 12, does not pass through element 2-2AND-56 (the zero signal from the output 9.10 comes to the input 12.6). Element 2-2I-YLI 56 passes a Start signal, delayed by delay element 62 (input 12.7 receives a single signal from output 9.9) and switches the distributor 63 pulses from the initial state to the state when its first parallel output is energized. At the same time, the delay time of element 62 must be such that the occurrence of a signal at its output coincides in time with the instant of a signal at output 9.9 (input 12.7 of block 12). At the same time, the first pulse, passing through the elements AND 61, OR 58, AND 60, OR 59 to output 12.11, translates the distributor 2 pulses into a state when its second output is excited, and also from the output of the element OR 58 (output 12, 10) this pulse arrives at input 9.4 and through element I 42 shifts the micro illumination code in the shift register 35. Thus, the illumination code of the second element of the micro polygram is rewritten in the low-order bit of the shift register 35. Simultaneously with the analysis of the illumination code of the first element of the micropigram, the device analyzes the code of the illumination of the second element of the micropigram, the value of which is removed from the output of multiplexer 34 and through the OR 49 element is fed to output 9.11 of the fororizer 9, two options are possible.

. If the illumination code value of the second element of the micropigram is 1, then the first pulse from the output of the generator 1 of the pulses, entering input 12.2 of block 12, passes through element 3-3-ZI-ShSh 55, affecting the right group of inputs (single signals are also fed to inputs 12.7 and 12., 5, respectively, from outputs 9.9 and 9.11) and translates trigger 11 into a single state, as a result of which a single signal from inverse inputs is turned off

elements 23, from control register 24, from the inputs of the installation O of the formers 13 and 14 of the deflecting voltages and the input of the element 46 of the former 9, the keys 18 are opened

and 19. Moreover, the code from the outputs of the distributor 2 pulses has time to rewrite to register 24 before the recording permission signal is disconnected from it, since the input of the element OR 23 is executed

the detainee, while from the outputs of the block 15 of the formation of bias voltages through the keys 18 and 19 to the inputs of the corresponding adders 21 and 20 are applied to the reference voltage, corresponding to

the starting point of the formation of the second

micropigram element. Thus, with the first pulse, the second element of the micropigram begins to form, the operation of the device at the same time

similar to the work described above.

If the value of the illumination code of the second element of the micropigram is O, then the first pulse from the generator output

1 does not pass through element 3-3-ZI-OR 55, since in the right-winged according to the scheme the group combined by AND of its inputs, the signal at input 12.5 from output 9.11 is equal to O, in the middle group of inputs

equal O signal at input T2.7 from output 9, 10, in the left group of inputs there is no overflow signal from the output of the distributor 63 pulses, trigger i; i rises in the zero state of the scientific research institute, with the arrival of the second and subsequent pulses from the output of the generator 1 distributor 2 pulses switches to the next state, and otherwise the operation of the device is similar to the considered second case, while the code

the illumination of the formed element of the microt, the polygrams will not be equal to T, To and the device will work according to the algorithm of the first case.

The operation of devices in the formation of all the other elements of the micro-program is similar to the two cases described above. The only difference is that when forming the fifth element of the micropigram for the low-order bit of the shift register 35 of the former 9, the device does not consider the second bit as the next bit. d register 35, and the least significant bit of shift register 36. Its value is taken into account in the transition to the formation of the second mi1: poligram. For this, in addition to the low-order bit of register 36, single inputs from the fifth output of the distributor 2 pulses and from output 1 of the decoder 32 are sent to the inputs of the And 47. Thus, from the output of the And 47, the signal corresponding to the low-order bits of the register 36, through the element OR 49 is fed to the output 9.11. If the code value of the illumination of the fifth element of the micropigram is equal to H, then the operation of the device during its formation is similar to the operation in the described first case. The difference is that the overflow signal from the output of the distributor 63 pulses of the block 12, after passing through the element OR 58, does not flow through the elements AND 60, OR 59, to the output 12.11 and further to the control input of the distributor 2 pulses, since the inverse input element 60 at input 12.9 is supplied with a single signal from the fifth output of the distributor 2 pulses. At the same time, the signal from the output of the element OR 58 goes to output 12.10, to the input 9.4, through element 42 translates the illumination code in register 35 and thereby zeroed em its contents. A single signal appears at the output of the element OR-NOT 38, which passes through elements 2-2 and 41, OR 50, goes to output 9.8, sets it to its initial state. The distributors 2 and 63 (via input 12.8). unit 12), and. also transfers to the next state block 4. In addition, the signal from the output of element 2-2 and-41 41 enters through the elements OR 51, the delay 53 to the input +1 of the counter 54. The delay time in element 53 is chosen so as to ensure the appearance the signal at its output, and, therefore, at the control inputs of the distributors 2 and 63 pulses, only after they have been reset. Signal

from the output of the delay element 53, the distributors 2 and 63 pulses from the initial state to the state when the first parallel output is excited in them, and the counter 54 to the state 10. The decoder 32 enters the next state in which the single signal appears at its output 2. As a result, instead of the AND 42 element, the AND 43 element is prepared for passing the shift pulses, and the multiplexers 33 and 34 switch to outputs 9.6-9.11 the contents of the shift register 36, where the illumination code of the second form is written micropigram. If the code value of the illumination of the first micropigram element is O (if during the formation of any element of the micropigram it turned out that O are the codes for the illumination of all subsequent elements of this micropigram), then at the end of the formation cycle of the previous element of the micropigram the overflow pulse from the distributor output The 63 pulses of the block 12 pass through the OR 58 element to the input 9.4, and the pulse from the output of the generator 1 transfers the trigger 11 to the state O. As a result, the signals to the light 28 output are rejected, The voltages at the outputs 29, 30 and 31 through the AND 23 elements in the block 3, the illumination code in the register 35 is shifted and the output signal of the OR-NOT 38 element appears, which leads, as described above, to the initial state distributors 2 and 63 pulses and the transition to the formation of the next micropigram. The operation of the device during the formation of the elements of this i-micropigram, as well as during the transition from one micropigram to another, is similar to the described work when forming the element of the first micropigram. The difference is that during the formation of the third micro-polygram, the counter 54 of the driver 9 is in the state of a single signal appears at the output 3 of the decoder 32 and the backlight code, recorded in the shift register 37, is processed. In addition, the termination signal of the formation of the third micro polygram is removed from the output of the AND 45 element and is fed to output 9.7 and through the element OR 50 to output 9.8. From output 9.7, this signal is applied to the input

installation of register 24, while block 4 on the signal from output 9.8 generates a signal to input 29 end of the character.

If in the process of forming the symbol, the control unit 8 detects an error, the device switches to the Correction mode. On the Error signal, taken from the output of control unit 8, trigger 10 goes to state 1, And 17 elements are blocked. The signal G of the single output of the trigger 10 through the element 23 permits the recording of information in the register 24 and sets the drivers 13 and 14 in -15 O and sets the distributor 63 of pulses to the initial state at input 12.1. In this case, the register 24 records the code from the outputs of the distributor 2 pulses and block 4, which correspond to the bias voltage at the outputs of the driver 15, which set the CRT beam to the point of the micropigram element, during the formation of which 25 failed. After a time sufficient to establish the g initial state of the formers 13 and 14 and to establish the CRT beam at the above-mentioned familiarity point, the DL signal from the output of the delay element 16 transfers the trigger 10 to the state O, unlocking the AND elements 17, and with the arrival of the next the pulse from the output of the pulse generator 1; the pulse distributor 63 is brought to the state when its first parallel output is energized. The device begins to recycle the formation of the element of the micropigram, on which it happened before the failure.

Thus, when a fault occurs, the device does not repeat the bypass of the micro-polygram outline from the beginning of the first element. According to the described algorithm, the device can detect and quickly eliminate the effect of multiple failures.

To illustrate the described, the Q-algorithm of the device operation in Fig. 7 shows the device operation diagrams when forming the letter A. The particular polygram from which this symbol is derived consists of the second and the third and the fifth (fig.b) micro-polygrams set. The code for the highlighting of a symbol is 111110-100000010 (the youngest bit on the right).

- The application of the invention allows to increase the speed of the device due to the introduction of technical means of the anachrism and accelerated processing of the micro illumination code, while reducing the time of formation and correction of the image.

Claims (2)

1. A device for displaying information on the screen of a cathode ray tube containing a pulse generator whose input is an input M: a device start signal, a pulse distributor whose outputs are connected to control inputs of the control unit, information inputs of which are connected to the outputs of the unit connected to the first inputs of the elements of the first group, the second inputs of which are connected to the inverted output of the first trigger, the direct output of which is connected to the input of the delay element whose output is connected n with the input of the setting of the first trigger, the input of installation 1 of which is connected to the output of the control unit, the information inputs of the switching unit are connected to the outputs of the group of the micropigram selection unit, the output of which is the output of the signal of the end of the device symbol, the information inputs of the micropolation selection unit are connected to the outputs the decoder, the inputs of which are connected to the outputs of the register, whose information inputs and information outputs of the backlight pulse generator are the input of the symbol code of the device, the outputs element The first group of the first group is connected to the informational inputs of the deflecting voltage formers at coordinates X and Y, respectively, the output of the backlight pulse generator is the output of the device's backlight pulse, and the synchronization unit, which is different from the fact that, in order to increase the speed of the device, it contains the second trigger element is OR, the second group, of the elements OR, two keys, two adders, the voltage driver —shift — AND trans. code breaker, the outputs of which are connected to the control inputs of the bias voltage driver, the outputs of which are connected to the information inputs of the corresponding keys. the control inputs of which are connected to the direct output of the second trigger, and the outputs with the first inputs of the corresponding adders, the second inputs of which are connected to the outputs of the deflecting voltage generators in the X and Y coordinates, respectively, the outputs of the adders are the outputs of the deflection voltages of the device , the information input of the bias voltage forcing device is connected to the output of the micropigram selection unit, and the Installation 1 input is connected to the device start signal input which is connected to the Input of the 1 formatizer pulse generator the illumination, the output of the OR element is connected to the control inputs of the code converter and the deflection voltage formers in the X and Y coordinates, the reset input, the code converter is connected to the second output of the phantom, the backlitter of the light pulses, the outputs of the pulse distributor, except the first, are connected to information the inputs of the first group of converter codes, the outputs of the pulse distributor are connected to the first inputs of the elements AND of the second group, the outputs of which are connected to the information inputs of the switching unit, information moves the second group codes transducer connected to the outputs mikropoligramm selecting unit, the second inputs of AND gates of the second group are connected to the inverted output of the second flip-flop, connected to the first input of the OR gate, to the data input of the second flip-flop, first control input pulse generator illuminated This and the first control input of the block synchronization, the first output of which is connected to the reset input of the second trigger, the second output — to the information input of the pulse distributor, and the third output — to the second control input of the backlight pulse former, the second input of the OR element, and the second control input of the synchronization unit are connected to the forward the output of the fiepBoro trigger, the third output of the backlight pulse generator is connected to the input of the Installation O of the micro-polygram selector unit, the synchronization unit and the pulse distributor, the syncro input of the synchronization unit is connected to the output pulse generator, blocking inputs of the synchronization unit and the backlight pulse shaper -, d a 25 h , „ 4U 35 50 five dinene with the last output of the pulse distributor, the outputs of the group of the pulse shaper light are connected to the information inputs of the synchronization unit, 2. The device according to claim 1, wherein the backlight pulse generator comprises three OR elements, the first input of the first OR element is an input of the 1st generator 1, and the output is connected to the input of a delay element whose output is connected to summed input the counter, the outputs of which are connected to the inputs of the decoder and the address inputs of the first and second multiplexers, seven And elements, three shift registers, information inputs which are information IEDs of the former, and the shift control inputs are connected to the outputs of the first, second and third elements AND, the first inputs of which are the second control input of the generator, and the reset inputs of the shift registers and the counter are connected to the output of the fourth element And, which is the second output of the driver and is connected to the first input of the second OR element, the output of which is the third output of the driver, the outputs of the first, second and third shift registers are connected to the input am, respectively, of the first, second, and third elements of the NAND, the outputs of the first and second elements of the NAND are connected to the first and second inputs of the 2-2I-OR element, the output of which is connected to the second inputs of the first and second elements OR, the penultimate outputs the three shift registers are connected from the first to the third information inputs of the first multiplexer, and the outputs of the last bits from the first to the third information inputs of the second multiplexer, the output of which is connected to the input of the element NOT and the first input of the fifth element AND, The second input of which is the first control input of the former, the first output of which is the output of the fifth AND element, the output of the first multiplexer is connected to the first input of the third OR element, the second and third inputs of which are connected to the outputs of the sixth and seventh AND elements, respectively whose inputs are the input blocking the driver, the second inputs - respectively with the first and second outputs of the decoder, the third inputs - with the outputs of the last bits of the second and third shift registers, respectively, the outputs of the delay element. The third AND element, the second multiplexer and the NOT element are the outputs of the shaper group, the third input of the 2-2 and-OR element and the second input of the first AND element are connected to the first output of the decoder, the fourth input of the 2-2Y-OR element and the second input of the second AND element with the second output of the decoder, the second input of the third and the first input of the fourth And elements are connected to the third output of the decoder, the second input of the fourth And element is connected to the output of the third element NAND, 3, the device according to claim 1, characterized in that the synchronization unit contains the first OR element, the first input of which is the third control input of the unit, and the output is connected to the information slot of the pulse distributor whose control input is connected to the output of the 2-2I element OR, and the output — with the first inputs of the W-N-ZI-OR element and the second OR element, the output of which is the third output of the block and connected to the direct input of the first element AND, the inverse input of which is the input of blocking block, and the output is connected to the first three input of the OR element, the output of which is the second output of the block, the second input of the second element OR is connected to the output of the second element AND, the first input of which, the first input of element 2-2 and -S1I, and the inputs of the group of the element Z-ZZ-OR-are sync block, the output of the element 3-3 the first output of the block, and the second input of the first control input of the block, the information inputs of the block of which are the second input of the first OR element, the second input of the third OR element, connected to the input of the delay element, the second input of the second And element, connected to the second input of the 2- element 2I-OR and the third input of the element Z-Z-ZI-OR, the third input of the element 2-2I-OR, connected to the fourth input of the element Z-Z-ZI-OR or interconnected inverse and fifth inputs: element Z-Z- ZI-OR, the fourth input element 2-2 and OR is connected to the output element delay-coagulant, A. The device according to claim 1, which is plugged by the fact that the bias voltage driver contains a trigger, the input of which is input Installation 1, the driver, and its input information input, the output of the trigger is connected to the control input of the first key. the input of which is the reference voltage bus, the output of the first switch is connected to one of the outputs of the load element, the other output of which is connected to the zero potential bus and the input of the inverter whose output is connected to the information inputs of the second and; the third keys, the output of the first key is connected to the information inputs of the fourth and fifth keys, the control inputs from the second to the fifth keys are the corresponding control inputs of the driver, the outputs of the second and fourth keys are connected to the inputs of the first OR element, the outputs of the third and fifth keys are connected to the inputs of the second OR element, the outputs of the OR elements are respectively the first and second outputs of the imaging unit. from 2 omZ5 Table continuation from№ anfZ Ofnff d7 kg , ig. -f-f o X / xa xs Yff 5 6 x xg xg) (u // x / -Se-o -CDFIG j four{ t VL Y2 U4Fi .2. 6 five