SU1695372A1 - Device for display of information on screen of tv indicator - Google Patents

Abstract

The invention relates to computing and can be used to display information about the course of technological processes and when displaying multi-dimensional images. The purpose of the invention is to increase the speed of the device. The device contains a mapping unit 1, the first 2, second 3, third 4, fourth 7 and fifth 16 RAM blocks, television indicator 5, first b and second 8 switches, calculator 9 increments of coordinates, shaper 10 Freeman codes, first decoder 11, shaper 12 coordinates of fragment boundaries, shaper 13 sweep coordinates, coordinate conversion unit 14, pulse shaper 15, control block 17 with corresponding links. Image information via bl-1 mapping is recorded in

Description

The invention relates to computing and can be used to display information about the course of technological processes and when displaying multi-dimensional images.

The purpose of the invention is to increase the speed of the device.

- Figure 1 shows the block diagram of the device; Fig. 2 is a functional block diagram of the control unit; FIG. 3 is a functional diagram of a shaper of the coordinates of fragment boundaries; figure 4 is a functional diagram of the pulse generator; Fig. 5 is a functional diagram of a coordinate conversion unit; Fig. 6 is a functional diagram of a fourth memory block; Fig. 7 is a functional diagram of the fifth memory block; on Fig - functional diagram of the calculator increments of coordinates; Fig. 9 is a functional diagram of the conjugation block.

The device contains a block 1 of the interface, the first 2, the second 3 and the third 4 blocks of RAM, the television indicator 5, the first switch 6, the fourth block 7 of RAM, the second switch 8, the calculator 9 coordinate increments, the driver 10 the Freeman codes, the first decoder 11, the shaper of 12 coordinates of the fragment boundaries, the shaper of 13 sweep coordinates, the coordinate conversion unit 14, the shaper of 15 pulses, the fifth operating memory block 16 and the control block 17.

The control unit 17 contains the sixth memory block 18, the first to the fifth triggers 19-23, the first counter 24 and the third switch 25, the first 26 and second 27 registers, the distributor 28 pulses, the first 29 and second 30 elements OR, the first element I31 .

The shaper 12 fragment boundaries coordinates contains the third 32 and fourth 33 registers. And the seventh memory block 34,

Shaper 15 pulses contains eighth 35 and ninth 36 memory blocks, fourth switch 37.

The coordinate transformation unit 14 contains a fifth register 38 and a first adder 39.

Block 7 contains three identical channels, each of which consists of the second element I 40, the tenth memory block 41, and the sixth register 42.

4 Block 16 also consists of three identical channels and contains the eleventh memory block 43, the seventh 44 and eighth 45 buffer registers, the group of elements OR 46, the third element AND 47, the third element OR 48, the fifth switch 49, the comparator 50, and the second decoder 51.

The calculator 9 increments of coordinates contains the second adder 52, the ninth register 53, the twelfth memory blocks 54, the tenth registers 55, the third adders 56, the twelfth registers 57, the third decoders 58, the second counters 59.

Block 1 of the interface contains the third 60 and fourth 61 counters, the thirteenth register 62, the sixth switch 63, the fourth 64 and fifth fifth decoders.

The device works as follows.

The device has four modes of operation: Loading, Shaping, Reading and Regeneration.

In the Downloading mode, information from the device input through the mapping unit 1 enters and records into the first 2 and second 3 blocks of RAM, the eighth register 45 of the fifth block 16 of RAM, block 4 of the RAM, fifth register 38 of the transform block 14 coordinates, the second register 27, the fifth trigger 23 of the control block 17, and the thirteenth register 62 of the gate 1 block. A description of the curves as a list of directions is loaded into the first RAM block 2. With

this includes data on the directions, on the values of the boundaries of the surfaces to be painted, the numbers of the directions in the list, which are the cell addresses of block 2, as well as the number of repetitions (direction records). Block 3 records signs of transformations of the displayed curves (change of scale, rotation angle, coordinates of the initial point of formation, as well as the number and attributes of the curve (color, blinking). The addresses of block 3 are the number codes of the curve. In the eighth block register 45

16, the image priority information that is generated in block 16 is recorded.

When displaying, the configurations (curves) are represented as separate planes, which are formed, respectively, in the fourth 7 and fifth 16 RAM blocks. To obtain undistorted multifaceted images, priority overlap of the planes is used one upon another. The imposition of planes occurs shaper 15 pulses. Block 4 receives information on color, scale for alphanumeric information and image flickering. Block 4 addresses are curve number codes. In the fifth register 38 of the coordinate conversion unit 14, information on the displacement of the image from the origin of coordinates along the X and Y coordinates is recorded. In the second register 27 of the block

17, the corresponding command is written, and the fifth trigger 23 is reset.

In the thirteenth register 62 of the interface 1, the word-state of the information display device, its operation mode and data in accordance with the operation mode are recorded. The loading of the first memory unit 2 is carried out sequentially. After each transmission and recording of the next data from the computer, the state of the fourth counter 61 of the conjugation unit 1 is increased by one. The loading of the second 3 and third 4 blocks of RAM is made similarly.

Thus, in the first memory block 2, a full curve description is stored with an end marker placed at the end of the description to recognize the end of the curve. The recognition is the first decoder 11 in the Formation mode. Control signals for the first 2, second 3 and third 4 operational blocks are received from the first conjugate block. After transferring information from the computer (not shown) to the first 2, second 3, and third 4 RAM blocks and registers of the conjugation block 1, the device is transferred to the mode of formation of the digital image. by setting the fifth trigger 23 to the state of a logical unit. In this case, from the block 3 of the operational memory, coordinates Xn, YH of the point of origin of the formation, scale values, rotation are received from the information inputs of the calculator 9 coordinate increments, and 9 information increments from the first block of the RAM 2 - data about directions. The same data on the directions, as well as data on the values of the boundaries of the painted surfaces, go to a group of information inputs.

5 shaper 12. At the other group of shaper inputs 12 from the calculator 9 coordinate increments data is received about the directions after conversion, the third - the curve number codes and attributes

0 curve. The calculated increments of coordinate are X + 1, X-1.Y + 1. Y-1 through the shaper 10 of the Freeman code is fed to the control block 17. From the former 12 coordinates of the boundaries of the fragment codes the number of the curve and

5, the calculated boundary values, as well as other attributes, are fed to the inputs of the fifth RAM memory unit 16. The calculator 9 coordinate increments according to the signals from the control block 17 and

0 coordinates ХН, YH generates addresses for the fourth 7 and fifth 16 RAM blocks. The control unit 17 organizes the operation of the device in the imaging mode, ensures the functioning of the calculator 9 of coordinates and the imager 12, and also records information in the fourth 7 and fifth 16 blocks of RAM. Since the image of a curve (configuration) on the screen contains a number of points, much smaller than the total number of raster points, it is advisable to form a curve only in the zones along which this curve passes. At the same time, the number of zones along which the curve passes is much less than the total number of screen zones represented by familiarity signs, the numbers of which are recorded by control unit 17 in the fourth RAM block 7.

0 In the proposed device, characters of the displayed information are programmed in the fifth block of 16 memory. The control unit 17 forms (records the curve) a symbol in the fifth block 19 of the RAM, organizes the recording of the symbol number in the fourth block 7 of the RAM, which is the random access memory of the configurations of the symbols. The configuration of the control unit 17 is completed by the signal from the decoder 11. The same signal sets the control unit 17 to the initial state and modifies the state of the counter 61 of the interface 1 unit. The code of the next curve number is selected (the address of the operational memory 3) and sets the number of the first direction of the curve pattern (addresses of the first RAM unit 2).

When all the configurations have been built, the signal control unit 17 from the conjugation unit 1 goes into standby mode, the fifth trigger 23 is reset and the ready signal is issued.

The image formation occurs in the mode in which the formation and regeneration of the image are separated in time, and the data necessary for the display are placed in the buffer register. The switching of the modes is performed by the imaging unit 13 of the scan coordinates. The imaging unit 13 controls the operation of the device in the regeneration mode, generating the addresses of the memory cells corresponding to the coordinates of the raster points. The coordinate conversion unit 14, in accordance with the information recorded in its register 38 in the load mode, calculates the absolute coordinates of the image points, which are then passed through the switches b and 8 to the main memory blocks 7 and 16.

In the regeneration mode, the addresses formed by the coordinate conversion unit 14 are passed through the switch 6 to the address inputs of the RAM block 7. At these addresses, from the block 7 of the operational memory, character codes are read out, which through the switch 8 arrive at the address inputs of the side 16 of the operational memory. Through the switch 8, the addresses that are generated by the coordinate conversion unit 14 also arrive at the address inputs of the fifth memory unit 16. At these addresses in memory block 16, point information is read into buffer register 44. In this case, in accordance with the contents of the register 45, a signal for display is put on the priority bus. Each block of memory 16 exposes these signals. The use of several blocks of image memory using a pulse former makes it possible to form (record) images. nor independently of each other, and when displaying, impose one on another, tadawa i from them or another priority, without distorting the foreground image

Thus, it is possible to display complex multi-aspect images, in which each individual image is formed in a separate memory block and, when displayed, is represented as a separate, display plane. The signals set by the RAM blocks 16 are analyzed by the pulse shaper 15, which determines

0 is the highest priority in accordance with the applications from RAM blocks 16 and forms its code on group i of outputs. That block 16 of RAM, in which the priority generated by the driver

5 15 pulses, and the own priority of the memory block are the same, it receives permission to transfer information to the color memory block 4,

The memory unit 4 generates video signals in accordance with the information loaded into it, using the data received at its input. From the output of block 4 RAM, the video signals are fed to the television indicator 5.

5 Device sync occurs

shaper 13 coordinate sweep.

 The memory block 16 is a programmable character generator of graphic symbols and is intended

0 for recording, storing and issuing graphical information in accordance with the character codes received via the switch 8 from the RAM block 7, as well as the addresses of the coordinates of familiarity points, coming from the coordinate conversion unit 14.

In the load mode, the register 45 records the priority information of the RAM block 16 at the subsequent display. This information enters the group of inputs of register 45 from block 1 of the co. The information is recorded by the control signal, which is supplied from the interface 1 to the input of the block 16 on

5, the input of register 45, and in the presence of a resolution signal, arriving at the input of the RAM block 16 to the input of register 45. In the imaging mode of the imager 12, data is transferred to

0 group of entries of the eleventh memory block 43 of the memory memory block 16. This data is written to a cell address that corresponds to the character code and is read from block 7 by a 5-memory memory. The addresses pass through the switch 8, which, depending on the operating modes of the device, switches the addresses to the output of the switch 8.

Switch 8 receives information from the tenth memory block 41. Register 42 provides for the separation in time of image formation and regeneration. The addresses are received from the inputs of the switch 8 according to the fifth group of inputs of the fifth memory block 16 to the group of inputs of the eleventh memory block 43. The recording in the memory block 43 occurs according to the control signal, which is fed through the AND 47 element through the group of inputs to the input of the memory block 43. The signals to the group of inputs of the fifth memory block 16 come from the imaging unit 13. When reading, the control signal to the fifth memory block 16 is fed from the control block 17 to the fourth input of the memory block 43. In this case, the permissive signal is supplied from the interface 1 block to the input of the element 47, to the input of the fifth memory block 16. The reset signal of the write enable to the input of the control unit 17 is fed to the first output of the memory unit 43. In the mode of regeneration of the image in accordance with the character code and addresses of character points received through the switch 8 according to the group of inputs of the RAM 16, the information is read from memory 43 and goes to the group of inputs of the register 44. Codes and addresses come from the fourth block 7 RAM and coordinate conversion unit 14. The recording in register 44 is effected by a control signal coming from the imaging unit 13. The signal in the register 44 arrives at a group of inputs of the fifth memory block 16 and enters the input of the register 44. Information from the group of outputs of the register 44 enters the group of inputs of the switch 49. At the other input of the latter is fed to the control signal from the OR 48 element. The first input of the element 48, which is the input of the fifth RAM memory unit 16, is connected to the coordinate conversion unit 14, to the second input of the OR element 48 via the group of inputs of the fifth block 16 It enters the memory strobe signal from chrominance block synchronization shaper 13. The third input of the element OR 48 is connected to the output of the comparator 50. The first group of inputs of the comparator 50 receives information about the priority of the RAM block 16 during mapping, and the second group of inputs through the group of inputs of the fifth RAM block 16 of the driver 15 collision pulses highest priority. The priority information to the pulse shaper 15 comes from the decoder 51 of the fifth RAM memory unit 16. From the group of outputs of the pulse former 15, the code of the highest plane priority at mapping arrives at a group of inputs of the comparator 50. When the priority from the pulse former 15 coincides and the contents of the register 45, the comparator 50 outputs a control signal that switches the switch 49. the point with the group of outputs of the switch 49 according to the group of outputs of the RAM block 16 is fed to the group of inputs of block 4. The RAM block 7 is intended for recording, storing and retrieving the character codes of the fourth block of 7 operas tive memory at the addresses corresponding to coordinates familiarity characters on the screen.

B-mode image formation

15, the address inputs of the tenth memory block 41 through the switch 6 over the third group of inputs of the RAM block 7 receive the coordinate values from the calculator 9 coordinate increments. On

0 data inputs of the tenth memory block 41, by a group of inputs from the control block 17, a character code is received, which is written into the corresponding memory cell of the ten memory block 41. The control signal is transmitted from the imaging unit 13 through the group of inputs of the operational memory block 7 to the first input of the element I 40, to the second input of which, at the input of the operational memory 7 from the interface 1, the operation resolution of the operational memory unit 7 is received. In the presence of these two signals at the output of the element 40, a signal is input to the recording resolution input of the memory block 41. Record in the seventh block 34

5 memory occurs when there is a signal on the fifth input that comes from the control unit 17. This signal also controls the write-read modes of the tenth memory block 41,

0

In the regeneration mode, the coordinate conversion unit 14 through the switch 6 receives the addresses corresponding to the group of inputs to the operational memory block 7.

5 coordinates familiarity on the screen. At these addresses, a character code is read from the tenth memory block 41, which is fed to the output group of the operational memory block 7 and written to the register 42. The write control signal to the register 42 comes from the imaging unit 13 through the input group of the operational memory unit 7 ti from the group of outputs of the register 42. The symbol code goes to the group of outputs of the fourth block 7 of the operative mti.

The coordinate conversion unit 14 is for dynamically moving an image in a screen field. The coordinate conversion unit 14 operates in the loading and regeneration modes. In mode

the load in the register 38 is recorded information about the displacement of the image along the coordinates X and Y relative to the initial position. This information enters the first group of inputs of the coordinate conversion unit 14 and is recorded upon receipt of a control signal from the interface 1,

In the regeneration mode, the offset recorded in register 38 and the addresses generated by shaper 13 arriving at a group of inputs of the coordinate conversion unit 14 are added to the adder 39. The addresses of the memory cells corresponding to the coordinates of the points with respect to the shift are formed on the group of outputs of the latter the initial position, the Addresses are fed to the output group of the coordinate conversion unit 14, the overflow signal of the adder 39 for gating. the image and control of the switch 49 is removed from the output of the coordinate conversion unit 14.

The pulse former 15 memorizes the facts of the collision of moving objects on the screen field and determines the highest priority for display requests coming from the RAM block 16.

In the regeneration mode, information about the priorities of each channel of the RAM block 16 is fed to the address inputs of the memory block 35 of the driver 15 pulses. In memory block 35, a table is written about the highest priorities for any combinations of priority applications received from each channel of the RAM block 16,

v In accordance with the priority information received at the inputs of the memory block 35 from its outputs, the corresponding code of the highest priority is read, which is fed to the group of inputs of the RAM 16. The priority information coming from the RAM block 16 makes it possible to determine which memory blocks of each channel have submitted the display requests, i.e. intersections of images formed in different channels of the operative memory 16 block. This information also goes through the switch 37 to the memory block 36, where all combinations of the patterns of each of the 16 memory blocks for the forward frame run are recorded by the control signal, arriving at the input of memory block 36. The control signal comes from the imager 13

Thus, a collision table is formed in the forward run of a frame in memory block 36. Switching the pulse shaper 15 to the read mode is performed by the control signal received from the conjugation block 1. This signal switches the memory unit 36 and the switch 37 to the read mode, while the addresses generated by the interface unit 1 according to the group of inputs of the forwarder 15 pulses go through the switch 37 to the address inputs of the ninth memory unit 36. Collision information, read out from memory block 36, is fed to match 1 block.

5 Shaper 12 coordinates of the boundaries of the fragment is designed to calculate / Shadows of the boundaries of the painted surfaces bounded by a closed curve, as well as to organize the conveyor buffer necessary for matching the output information of the shaper 12 and the calculator 9 coordinate increments.

In the imaging mode of the first block 2 RAM on

5, the group of address inputs of the memory block 34, along the group of inputs of the imaging unit 12, boundary codes and direction codes are received. The group of address inputs of the seventh memory block 34 from the computer 9 coordinate increments

0 Receive direction codes. In memory block 34, a table of boundary values is recorded for all possible combinations of communication codes with regard to rotation. According to information received at the address inputs of the block 34

5 of the memory, new values of the boundaries of the painted surfaces are formed at its outputs. In the regeneration mode of the image, the bits of the left border are read from the fourth block 7 of the RAM.

0 sets the prohibition of writing to the seventh register 44. At the same time, the information in register 44 is retained until then. until the bit of the right border is read, which will allow register register 44 to be overwritten.

5 Thus, the space between the left and right boundaries of the contour is filled with dots, the attributes of which are determined by the contents of the fourth RAM block 7. In this case, it forms a surface bounded by a contour. Thus, the shaper of 12 coordinates of the boundaries of the fragment generates new values of the boundaries, which vary depending on the angle of rotation of the image. New

The 5 values of the boundaries are written to the buffer register 32. We are also recorded the number and attributes of the curve coming from the second block 3 of the working memory along the group of inputs of the driver 12, and the bit at the end of the array, which comes from the descriptor

torus 11. Then the information is overwritten into register 33, and from its outputs the information about the curve is fed by a group of outputs of the former 12 coordinates of the fragment boundaries to the fifth block .16 of the operating memory. The writing and rewriting to the registers 32 and 33 is effected by a control signal received at the input of the driver 12 from the control block 17. The calculator 9 increments of coordinates is intended for processing graphic information coming from the second 3 and third 4 blocks of RAM. It translates the associated description, in which the graphic image is specified, into a coordinate description necessary to display the object. The calculator 9 increments of coordinates transforms the image by scaling (M) and rotating (G). The adder 52 realizes the transformations of the rotation type, forming the direction codes forming the curve, taking into account the rotation code. The direction codes (Si) are fed to the adder 52 through the second group of inputs of the subtractor 9 increments, and the turn code (G) through the first group of inputs. The resulting directional code (Si + G) is written to the buffer register 53, and also fed to the imaging unit 12. Conversion of directional codes (Si + G) to increments of the coordinates AX and AY is implemented in tabular form using memory blocks 54. The table is defined taking into account the scale factors on the X and Y coordinates, arriving at the first group of address inputs of the memory sides 54, to the second group of inputs of which the direction code {Si + G) is fed. The table values corresponding to the input direction codes and the scale factors are increments of the coordinates of the DCs and DS, calculated by the formulas:

/ AXi Mx-cos (Si + G);

LAYi My-sln (Si + G), (1)

where D Xi and D Yi are the current increments of the coordinates, respectively.

MX, Mu-scale coefficients by coordinates;

Si is the current direction;

G is the angle of rotation.

The increments of the coordinates are written into the buffer registers 55. From the outputs of the latter, the increments of the coordinates arrive at accumulating adders 56, which accumulate the error of the rounding of coordinates and correct the values of the coordinates in accordance with their increments. In the third adders 56 of the evaluator 9, the values of the sum of the increments of the coordinates are added to the current values of the increments of the coordinates. The latter come from the tenth registers 55, and the sum of the increments of the coordinates are stored in the registers 57. After each addition and record in the registers 57 of the result of the summation, the values of the sum of the increments of the coordinates are updated. The current values of the increment sums and their previous values are analyzed by third decoders 58. The latter, by the values of the increment sums, round off: the coordinate increment values to the nearest integer raster lattice node and generate correction signals that arrive at the second group of outputs of the calculator 9 coordinate increments on the shaper 10 Freeman code. The generated Freeman code enters the control block 17, which, in accordance with this code, generates signals for modifying the state of the counters 59 coordinates of the calculator 9 coordinate increments. At the beginning of formation, information about the coordinates of the point of the beginning of construction is recorded in the counters 59. Thus, the calculator 9 coordinate increments calculates the coordinate values by the formulas:

GC (Xn + Ј Mx-cos (Si + G);

 one

 n + i

My-sln (Si + G),

(2)

where Xi, YI are current coordinate values;

ХН, YH - coordinates of the beginning point along: the structure;

K - the number of directions.

At the end of the formation, the counters 59 are reset to zero by the end of the array signal coming from the calculator 12 bounds.

 In the download mode, information is fed through the device input to the buffer register 62, as well as to the group of inputs of the decoder 65. The latter generates control signals by which the information recorded in the thirteenth register 62 is overwritten into the corresponding registers or memory cells of the device. When loaded into the first block 2 of the RAM of the description of the curve images, the counter 61 receives a control signal from the thirteenth register 62. The fourth counter 61 forms the addresses of the cells of block 2, these addresses are the numbers of directions whose codes go to the first block 2 of the RAM register 62. In addition to the direction codes, the values of the grains of the painted surfaces, as well as the number of direction repeats and the array end marker are recorded in the first RAM block 2.

When the second memory unit 3 is loaded, information from register 62 is recorded in cells, the addresses of which are generated by the third counter 60 of the curve number code. The information contains the curve code and transformation codes. Similarly, block 4 of the operational memory of chromaticity is loaded. At the same time at its inputs from the register 62 receives the code of the curve and its color. In the imaging mode, the selection of blocks 7 and 16 of the RAM, as well as the unit 14 of the coordinate conversion unit for recording information about the image displacement is performed by the decoder 64 of the interface 1. The counter 60 forms the sequence number of the curve to be formed, and the counter 61 forms the sequence numbers of the directions in the list of Curves. In this case, the curve number code goes to the address inputs of block 3, and the code of the direction number goes to the address inputs of block 2. Counter 61 is controlled by a signal received from control block 17. Upon completion of the formation of the curve, the counter 61 is reset to zero by the signal at the end of the array, coming from the shaper of the 12 coordinates of the fragment boundaries. The same signal changes the state of the counter 60, which then forms the following curve code. When the curves are formed, the counter 60 generates a signal that goes through the eighth output of the interface 1 to the second input of the control unit 17, resetting the trigger. env., 1

In the read mode, the decoder 64, according to the information recorded in register 62, generates a control signal fed to the switch 63, as well as to the driver 15 pulses. At the same time, the latter is transferred to the reading mode, and the counter 61 forms the addresses of the memory cells of the ninth memory block 36.

The control unit 17 is designed to control the operation in the imaging mode in one of the channels. It generates control signals for operation of blocks 9, 12, 1, 7, 16.

The initial data for the operation of the control block 17 is the information recorded in registers 26 and 27, as well as the Information coming from the calculator 9 coordinate increments and the driver 10 of the Freeman code. The operation of block 17 is synchronized by the sync signals from the imaging unit 13 of the scan coordinates.

In the load mode, the command code is entered into the second register 27, which arrives in the mz of the conjugation block 1. B, the register 27 records the codes of the following commands necessary for the formation of the image; access to blocks 7 or 16 of RAM; reading (writing, cleaning, shaping selectively, resetting to the initial state).

0 Transition of the control unit 17 to the image forming mode is performed by setting the fifth trigger 23 to the state of logical one.

The installation of the fifth flip-flop 23 takes place according to the signal coming from the block 1 of the conjugation. The fifth trigger 23 enables the operation of the signal control unit 17 inputted from its output to the sixth memory unit 18. The same signal goes to block 1.

0 mates, signaling the readiness of the formation of the image by the control unit 17.

In the imaging mode, the first register 26 records information about the number of repetitions of the direction that comes from the first RAM block 2. The recording takes place on a signal that is generated by the RAM unit 2. The first register 26 forms

0 signal that the number of repetitions of the direction is not zero. This signal enters memory block 18. In the formation of the image for blocks 7 and 16 of the RAM, the following information 5 addresses are used, which are synchronized from the pulse distributor 28; the Freeman code from the shaper 10 of the Freeman code; command code; state of the first 19 and fourth

0 22 triggers. The trigger 19 stores information about the previous directional zone (the value of the Freeman code), the trigger 22 determines the transfer state, and the trigger 20 determines the write resolution.

5 Pulse distributor 28 with the help of sync signals from the 13 sweep coordinate generator, generates the signals controlling the operation of the first register 26, the sixth block 18 point, the second register 20, as well as the signals controlling the operation of the calculator 9 coordinate increments and the imager 12 coordinates of the boundaries of the fragment. The pulse distributor 28 is controlled by signals that are read from the sixth memory block 18. The installation of the distributor 28 by a pulse to the initial state is made by a signal from the driver 12. This signal sets the first counter 24 to the initial state.

The control unit 17 operates as follows.

When forming the image, the instruction code from register 27, the signal from microcommand register 26, the transfer flag from fourth trigger 22, the information from trigger 19, the Freeman code coming from generator 10 of Freeman, and control signals from the pulse distributor 28. In accordance with the Freeman code, the sixth memory block 18 determines, according to the table recorded in it, the cursor movement area and transitions the cursor from one movement area to another according to the order of change in the state of the coordinate counters of the calculator 9 coordinate increments. In this case, the sixth memory block 18 generates signals of a change in the state of the counters 59 coordinates. The older nibbles of the counters 59 coordinates of the calculator 9 increments of the coordinates indicate the zone into which the information is to be currently recorded, i.e. The coordinates of the symbol (zone) are formed at the outputs of the counters 59, the lower nibbles indicate the coordinates of the recorded point in this symbol (zone). Thus, the senior nibbles of the counters 59 form the addresses of the memory cells of the fourth RAM block 7, the lower nibbles are the addresses of the cells of the fifth RAM memory 16;

The addresses of the fourth RAM block 7 read the contents of the corresponding memory cell, which is the character code. The contents of the memory cell are fed to the inputs of the AND element 31, which, when it receives the control signal from the sixth memory block 18, arrives at another input, analyzes the contents of this cell to zero and, if it is equal to zero, generates a signal that sets the trigger 21 to unity. From the output of the trigger 21, the signal enters the sixth memory block 18, and also sets the trigger 20 to the state enabling the recording. In accordance with the state of the flip-flop 21, the sixth memory block 18 issues a change signal of the content counter 24. The content of the latter is incremented by one. The sixth memory block 18, according to the signal received from the output of the trigger 20, generates a signal that prohibits the operation of the distributor 28 pulses during recording. In addition, the sixth memory block 18 generates a write signal to the fourth RAM block 7. The character code enters the fourth RAM block 7 and is recorded therein at the corresponding addresses. When recording information, the fourth RAM block 7 issues a reset signal for the write resolution, which comes through the OR element 295 to the trigger 20. By this signal, the latter is reset to zero and sixth memory block 18 enable the operation of the pulse distributor 28. This signal also resets trigger 21 and trigger 22, which is set to one when the cursor moves from one familiarity zone to another. The signals of transition to another zone are formed by counters 59 coordinates of the calculator 9 increments of coordinates and arrive at the element

5 OR 30. The sixth memory block 18 puts the fourth RAM block 7 into read mode. The information on the group of outputs of the fourth RAM block 7 contains the symbol code of the fifth block.

0 16 operating memory, in which the generator is recorded, Information is recorded in the fifth operating memory unit 16 by means of control unit 17, while the cursor moves from the zone of one familiarity to another zone. The control is carried out by the element OR 30 and the trigger 22, which is set to one when moving from one zone to another. This changes

0 contents of high nibbles counters 59 coordinates calculator 9 coordinate increments, i.e. The addresses of the fourth block 7 of the RAM are changed. An analysis of the familiarity zone to zero occurs. If there is already a character code written there, the state of the counter 24 does not change, and the formation of the image in the memory block 16 is performed through the switch 8 by the character code read from

0 of the fourth block 7 of the RAM. In this case, the trigger 20 is set by a signal from the distributor 28 pulses, and the sixth memory block 18 generates a write enable signal to the fifth operational memory block 16. At the same time, a signal for disabling the operation of the distributor 28 impulses is generated. When writing, the fifth RAM block 16 generates a reset signal for the recording resolution, which is received through AND 29 on trigger 20 and resets the last one. The fifth memory block 18, analyzing the state of the trigger 20, allows further operation of the pulse distributor 28. After each entry in the fifth

5 main memory unit 16; pulse distributor 28 generates a signal for changing the contents of register 26. With the number of repetitions equal to zero, the first register 26 generates a signal arriving at the input of the sixth memory block 18

The sixth memory block 18 generates signals, on the basis of which the pulse distributor 28 generates a control signal for the calculator 9 coordinate increments and the shaper of the fragment boundaries 12, as well as a signal for changing the state of the counter 61 of the interface 1. The counter 61 forms the addresses of the first memory unit 2, in which the directions describing the curve are recorded. After this, the next direction is read.

In the regeneration mode, the distributor 28 pulses in accordance with the clock signals from the generator 13 of the scan coordinates switches the control unit 17 to the regeneration mode, in which the control unit 17 stores its state without generating any control signals.

Upon completion of the formation of the curve, the first decoder 11 generates a signal at the end of the array, arriving through the buffer registers, the generator 12 to the calculator 9 coordinate increments v, the control block 17, setting them to the initial state, and changing the contents of the counter 60 to the block 1 which thus forms the number of the next curve, which is the address of the second RAM block 3.

After all the curves have been plotted, the conjugation block 1 generates a signal that resets the trigger 23 to zero. The trigger 23 forms at its output a signal that prohibits the operation of the control unit 17 and signals that the device is ready to form a new image. This signal enters the conjugation block 1. Thus, in the fourth memory block 7, the configuration of symbols is written, the information about which is formed in the fifth memory block 16.

Thus, the invention provides an increase in speed due to the fact that, as compared with the known device, the operation of displacing the image fragments 1 is not performed by reprogramming the configurations, but by calculating the coordinates taking into account the displacement in the regeneration mode.

Claims (1)

Invention Formula A device for displaying information on a television indicator screen, comprising an interface unit, first, second, third and fourth blocks of RAM, first and second switches, calculator of increments of coordinates, Freeman code generator, first decoder, first and second outputs of the block the interfaces are connected respectively to the control and information inputs of the first memory block, the address input of which is connected to the first output of the second memory block, the control and information inputs of which are connected respectively to the third and fourth outputs of the interface block, the first output of the first block memory connected to the information input of the first decoder and the first information input of the coordinate increment calculator, the second information input of which is connected to the second The first output of the coordinate increment calculator is connected to the input of the Freeman code generator, the second output of the coordinate increment calculator is connected to the first information input of the second switch, the fifth and sixth outputs of the interface block are connected respectively to the control and information inputs of the third a memory unit, the output of which is connected to the video inputs of the television indicator, the input-output of the interface unit is an input-output device, characterized in that what. In order to improve device speed, it contains a control unit, a fragment boundary coordinate generator, a fifth RAM memory unit, a pulse generator, a coordinate conversion unit, a sweep coordinate generator, the output of which is connected to the control input of the first switch , the first information input of the control unit, the first address input of the fourth memory unit, the control input of the second switch, the synchronous input of the television zionic indicator, the synchronous input of the pulse former and the first address input of the fifth random access memory block, the second address input of which is connected to the output of the second switch, the second information input of which and the second information input of the control unit are connected to the first output of the fourth random access memory, the second output of which is connected to the third information input of the second switch, the fourth information input of which and the first information input of the first switch are connected to the first the output of the coordinate conversion unit, the second output of which is connected to the third address input of the fifth RAM block, the fourth address input of which, the second address input of the fourth RAM block and the second information input of the coordinate conversion block are connected to the seventh output of the interface block, eighth my output is connected to the control input of the coordinate conversion unit, the third information input of which, the information input of the fifth RAM block and the third information input the control locator is connected to the ninth output of the interface unit, the tenth output of which is connected to the start input of the control unit, the first output of which is connected to the input of the record management of the interface unit, the input control input of which and the input of the control input of the control unit and the first control input of the calculator increments of coordinates are connected to the first output of the fragment coordinates generator, the second output of which is connected to the fifth address input of the fifth RAM block, the first control input of which connected to the second output of the control unit, the clock input of which is connected to the first output of the fifth RAM block, the second output of which is connected to the address input of the third RAM block, the first output of the pulse shaper is connected to the sixth address input of the fifth RAM memory block ti, the third output of which is connected to the first information input of the pulse generator, the second information and control inputs of which are connected respectively to the eleventh and twelfth outputs of the Wife, the thirteenth exit of which is connected to the second manager the first information input of the interface block is connected to the second output of the pulse generator, the clock input of the interface block is connected to the third output of the control unit, the fourth and fifth outputs of which are connected respectively to the information and control inputs of the fourth block RAM, the third address input of which is connected to the output of the first switch, the second information input of which is connected to the second output of the coordinate increment calculator, the third output of which connected to the fourth information input of the control unit, the sixth output of which is connected to the third information input of the coordinate increment calculator, the fourth output of which is connected to the first information input of the fragment boundary coordinates generator, the second information input of which is connected to the third output of the second memory block, output the first decoder is connected to the control input of reading the imager of the coordinates of the boundaries of the fragment, the third information input of which is connected to the first at the output of the first RAM block, the second and third outputs of which are connected respectively to the fifth information input and the synchronization stroke of the control unit, the seventh output of which is connected to the second control input of the calculator of the coordinate increments and the clock input of the imager of the coordinate of the fragment boundaries, the third output the fourth memory block is connected to the reset input of the control unit, the sixth information input of which is connected to the output of the Freeman code generator, but Fig f