SU1661750A2 - Device for data display on crt screens - Google Patents

Abstract

The invention relates to automation and computing and can be used in devices for outputting alphanumeric and graphic information on a screen of a cathode ray tube (CRT). The purpose of the invention — an increase in the device speed — is achieved by introducing registers 120 and 121, groups 122 and 123 of elements AND, element NOT 124, groups 125 of elements OR, and corresponding functional connections. For automatic character type coloring and the background of the images in the "window" in different colors, the register 120 records the input code 116 color code for the characters in the "window", and the register 121-input 118 writes the background color code for the image in the "window". The color codes in registers 120 and 121 form a command that is issued by the information system once. The signals from the outputs of the registers 120 and 121 control the passage of the video signal from the output of the modulation unit 7 to the modulators (color inputs) of the CRT 8 using the elements AND groups 122 and 123 and the elements OR group 125. Using one command allows you not to generate color codes for all elements of the image and in the "window", and the device eliminates the need to accept and store these codes. 4 il.

Description

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The invention relates to automation and computing, can be used in devices for outputting alphanumeric and graphical information to the screen of an electron beam tube (CRT) and is an improvement of the device according to the author. St. No. 1476521.

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

FIG. 1 shows the structural {: device heme} in FIG. 2 a block diagram of the control unit} in FIG. 3 and 4 is the block diagram of the device.

The device contains the first 1 and second 2 memory blocks, the first 3 register, 4 character generator, block 5 of the permanent memory, shaper line shaper 6 20, modulation block 7, cathode ray tube (CRT) 8, control block 9, from the first 10 to the third 12 groups of elements I, the first group of 13 elements OR, the second register 25 registrar 14, the first 15 and the second 16 groups of prohibition elements and the third 17 register, information input 18 and output 19 of the device, outputs 20-30 and output 31 of control block 9 .30

The control unit 9 contains a generator of 32 synchronization pulses, a counter 33 of the number of decomposition elements on the X coordinate, a counter 34 of the number

eighth register 96, third element 97, first element NOT 98, twelfth register 99, ninth register 100 fourth element AND 101, second element NOT 102, third element OR 103 information inputs 104–112, output 113 of modulation unit 7 , m trolleys 114 CRT 8, the output 115 of the element And 81 and the information inputs 116-119 devices.

The device also contains the twentieth 120 and fourteenth 121 registers, the eighth 122 and the ninth 123 groups of elements AND, the third element NOT 124 and the second group 125 elements OR, and from the first 126 to the fourth 129 through registers 3.

The device works as follows.

A generator of 32 synchronization pulses produces pulses that synchronize the operation of the entire device. From its output, pulses arrive at the inputs of unit 7 (output 68) and counter 3. The transfer pulses from the second output of counter 33 go to the first input of counter 34, and the transfer pulses from the second output of counter 35 go to the first input of counter 36.

The status codes of the device from the first outputs of the counters 33 and 35 (output 69 and 72), the second outputs of the counters 34 and 36 (outputs 71 and 74) and output

 characters in the lines of the displayed sim, s register 14 (input 31) are served on

free information, a counter 35 of the number of elements of the expansion of characters along the Y coordinate, a counter 36 of the number of lines of displayed symbolic information, a decoder 37 and a block of 38 permanent memory of microinstructions.

The device also includes the outputs 39-67 of the unit 38, the output 68 of the generator 32, the outputs 69-74 of the control unit meters and the outputs 75 and 76 of the device. In addition, the device contains the fourth group of 77 And elements, the fourth register 78, the first comparison block 79, the tenth register 80, the first And 81 element, the fifth And group of 82 elements And, the fifth register 83, the second comparison block 84, the first the element OR 85, the sixth group 86 of the elements AND, the sixth register 87, the third comparison block 88, the eleventh register 891 the seventh group of 90 AND elements, the seventh register 91, the fourth comparison block 92, the second element AND 93, the second OR element 94, the decoder 95 ,

the inputs of the decoder 37, connected to block 38.

Using block 38, in which codes of microinstructions are written, they form

40

bot device.

At the first output 39 of block 38, a signal is written to Block 2, output 40 is a signal Read block 2 45 at output 41 is a signal Read block 1, and output 43 is a signal Record of the fourth subregister 129 register 3 (register 3 consists of four registers) , output 44 - signal Reset the fourth sub-register, output 45 - signal Record the third sub-register 128, exit 46 - sial Reset the third sub-register, output 47-signal Record the second sub-register 127, exit 48 - the Reset signal. the second sub-register 127, output 49 - signal Record the first sub-register 126, output 50 - signal Reset first sub 50

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the eighth register 96, the third element AND 97, the first element NOT 98, the twelfth register 99, the ninth register 100, the fourth element AND 101, the second element NOT 102, the third element OR 103, the information inputs 104-112 of the device, the output 113 of the unit 7 module tion, modulators 114 CRT 8, the output 115 of the element And 81 and information inputs 116-119 device.

The device also contains the thirteenth 120 and fourteenth 121 registers, the eighth 122 and the ninth 123 groups of elements AND, the third element NOT 124 and the second group 125 elements OR, and from the first 126 to the fourth 129 sub-registers of register 3.

The device works as follows.

The generator 32 synchronization pulses produces pulses that synchronize the operation of the entire device. From its output, the pulses are fed to the inputs of block 7 (output 68) and counter 33. The pulses of transfers from the second output of counter 33 arrive at the first input of counter 34, and the pulses of carries from the second output of counter 35 to the first input of counter 36.

The status codes of the device from the first outputs of the counters 33 and 35 (outputs 69 and 72), the second outputs of the counters 34 and 36 (outputs 71 and 74) and the output

register 14 (input 31) is served on

the inputs of the decoder 37 connected to block 38.

With the help of block 38, in which the codes of microinstructions are recorded,

bot device.

At the first output 39 of block 38, a signal is written by Block 2, output 40 is a signal of Block 2, output 41 is a signal of Block 1, output 43 is a signal of the fourth subregister 129 of register 3 (register 3 consists of four subregisters ), output 44 - signal Reset the fourth sub-register, output 45 - signal Record the third sub-register 128, output 46 - signal Reset the third sub-register, output 47-signal Record the second sub-register 127, output 48 - Reset signal. the second sub-register 127, output 49 —signal Record of the first sub-register 126, output 50 — signal Reset the first sub-signal

gistra, at output 51 - signal General reset of register 3, at output 52 - signal Read unit 5, at output 53 - signal Record unit 6, at output 54 - signal Beginning line, at output 55 - signal Beginning of frame, at output 56 - return backtrace signal, output 57 - backward traverse signal output, output 58 - signal to block 7, output 59 - ready signal to receive a code, output 60 - signal to transfer to block 35, output 61 to reset signal counters of block 9, output 62 is the control signal of block 10, output 63 is the control signal of block 11, output 64 is the control signal b lock 12, output 65 - signal Reset unit 17, output 66 - signal Record to first digit of block 17, output 67 - signal Record to second digit of block 17.

The counters 34 and 36 form the addresses of the first memory block 1 (character memory) outputs 70 and 73, the counters 35 and 36 form the addresses of the second memory block 2 (raster memory) outputs 72 and 73. Additionally, the addresses generated by the counters 34 and 35, are used to control the blocks 5 and 6 of the generator 4 characters (outputs 70 and 72).

From the outputs of block 38, additional control pulses of the first 10, second 11 and third 1-2 groups of elements I (outputs 62-64), control pulses of the third register (outputs 66 and 67) are output.

Block. 9 implements four basic modes of operation of the device and additional modes - erasing and masking in the window.

The mode number that is currently being implemented is recorded from the device information input T11 to the register 14 at its first input. The reset of register 14 is effected by a signal from the information input 112 of the device at its second input each time it switches to a new mode of operation.

Through register 3 (the first sub-register) and block 16, the character codes in the exchange mode with the information system (input 18) are fed to the input of the first memory block 1. Here they are recorded in successive cells in the order of arrival at its input. According to the signals from the outputs of the control block 9 in the raster generation mode, they are selected from block 1 and, through the second sub-register of block 3, alternately pass into the 4-character generator.

From the output of block 5 of permanent memory

0 codes corresponding to the raster lines of the television decomposition of symbols are fed to the raster line shaper 6 and through it, the third group of 12 elements AND and the register 3 (third sub 5 register), the first group of 15 prohibition elements in the second memory block 2. At this moment, the register 17 is cleared and the information through the groups 16 and 15 of the prohibition elements in the memory blocks passes

0 without change, since at their second prohibiting inputs the signals from the outputs of register 17 are zero.

In the raster regeneration mode, information words with the length KHM bit through register 3 (fourth sub-register), the first group of 10 elements AND and the group of 13 elements OR arrive at block .7 (K is the number of characters per line, M 0 is the length of the inline video code of one character).

At this time, the second group 11 of elements AND with a signal from the output of control block 9 resets registers 96 and 100 (input 110) and units are set at the inputs of groups 10 and 11 of elements AND.

An image is displayed on the CRT 8 screen.

With the help of groups 11 and 12 elements AND and group 13 elements OR of the device, the fourth mode of operation is realized.

In this mode, using the third group of 12 elements, AND, the connection between the output of the 4-character generator with register 3 and then with memory block 2 is broken.

I

0 Using the second group of 11 elements And and a group of 13 elements OR, a direct connection of the 4-character generator with block 7 is established to display the variable component

5 images. Due to this, with the simultaneous implementation of the third and fourth modes, one should combine the constant and variable components of the image.

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In memory block 1, the information may change many times with the same -containing block 2.

If necessary, erase the image on the CRT 8 device. The device is transferred to the first additional image erase mode, which1 is implemented by commands from input 111 of the Device, which enters the input of the register 14, previously reset on input 112, in the form of Iodification signs of the main mode numbers additional Kodo bits: c).

The modified codes of the numbers of the Main modes translate the addresses of the block 38 into the cell area, where the micro-commands are stored with units in the code-bits, which correspond to the coziness of the outputs connected via pins 66 and 67 to the second input of the register | The reset of register 17 is effected from the output of block 38 connected to its first input through Johod 65.

This allows you to lime one or both register 17 triggers at the right time and to prevent the S-signals from their Outputs from passing codes through the first 15 or second 16 groups of prohibition elements or both at once depending on what is erased - Content of the first memory block, the contents of the second memory block or both blocks simultaneously.

The device, using blocks 77- 103, implements a second additional mode of operation — masking the image in the window. The window is part of a rectangular image.

Masked as part of the image stored in block 1 symbolic / mt, giving zero to the third input of the second group of 11 elements AND, and part of the image in block 2 of raster memory, giving zero to the third input of the first group of 16 elements And

. tag and both memories simultaneously. Zeros are supplied from the outputs of the elements HE 98 and 102 with units at the outputs of the elements AND 97 and 101. These elements switch the signal from the output of the element. And 81 depending on the state of registers 96 and 100, which are cocked individually or together

 signals from the information system at inputs 108 and 109 after resetting at input 110.

The signal at the output of the element And 81 is equal to one only within the window. The size and position of the window are given by the coordinates of the upper left and lower right corners.

The coordinates of the corners of the window are entered. in four steps in registers 78, 83,

87 and 91 at input 104 from the information system after applying a pulse to input 107 Total reset from the information system.

The first is the code XI of the upper left corner of the window. In this case, the coordinate code is input to the input 104, and the register number in which the coordinate is recorded is input to the input 105. The register number is fed to the first input of the register 99 and through it to the input Q of the decoder 95.

The signal from the first output of the decoder 95 enters the second input of the fourth group 77 of the elements And, and opens it to pass the coordinate code to the register 78.

After recording the information in the register 78, the codes at the inputs 104 and 105 are removed, the register 99 is impulse from the information system at the input 106 through 0, the OR element 103 is reset and the new information is set at the inputs 104 and 105.

The second is the X2 coordinate code of the lower right corner of the window. The signal from the second output of the decoder 95 through the fifth group of elements And 82 it is written in the fifth register 83.

The third is the Y1 coordinate code of the upper left corner of the window. By the Q signal from the third output of the decoder 95 via the input 104 and the sixth group of .86 elements, the code is written into the sixth register 87.

The fourth is the coordinate code Y2 of the lower left corner of the window. The signal from the fourth output of the decoder 95 through the input 104 and the seventh group of 90 elements And it is recorded in the seventh register 91.

After each entry, the register 99 is reset by a pulse from the output of the information system, coming through the first input of the third element i OR 103 to the second input of the register 99,

Codes from the outputs of registers 78, 83, 87 and 91 are received respectively at the second inputs of blocks 79, 84, 88 and 92 of the comparison.

When the device operates, signals from the outputs of block 9 are fed to the first inputs of blocks 79, 84, 88 and 92. At the output of block 79, the signal 1 appears when the coordinate X1 coincides with the current contents of counters 33 and 34, and at the output of block 84 the coincidence of the x2 coordinates with the current contents of the same counters.

At the output of block 88, the signal appears when the coordinate Y1 coincides with the current contents of the counters 35 and 36; at the output of block 92, the signal appears when the coordinate Y2 coincides with the contents of the same counters.

The signal from block 79 each time sets the tenth register 80 at its first input, the signal from block 84 through the first element OR 8 resets register 80 at its second input.

The active state of register 80 corresponds to the left and right edges of the window and its contents along the lines of the image decomposition.

The signal from the output of block 88 cocks the eleventh register 89 at its first input, the signal from the output of block 9 resets the register 89 at its second input through the second element AND 93 and the second element OR 94.

The signal from the output of the block 88 corresponds to the upper edge of the window, the signal from the output of block 92 to the lower edge of the window, and the signal from the output of the AND 93 element to the lower right corner of the window. The signals from the outputs of the registers 80 and 89 are fed to the inputs of the element And 81.

Upon completion of the cycle of operation of the device in the second additional mode, registers 78, 83, 87, 91, 99, 80, 89, 96, 100 and 14 are reset all together or in groups depending on the mode specified in the next stage of operation of the device.

The signal at the output of the element And 81 is equal to 1 within the window. Window mask

part of image 1 contained in one block

ru with

wives,

memory, you can take his place on

screen image from another memory

and vice versa.

In order to perform masking with a known window size, just one command from the information system is sufficient.

0

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five

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five

0

five

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To implement automatic monochromatic coloring of the characters and background of images in the window in different colors, the thirteenth 120 and fourteenth 121 registers are pre-reset, respectively, through the inputs 117 and 119 with signals from the outputs of the information system. Then, at the input 116 to the register 120, the code color of the image of characters in the window is recorded from the output of the information system. At the same time, if necessary, the code of the background color of the image in the window is written to the register 118. Together, the color codes in registers 120 and 121 form a command that is issued by the information system once for the duration of the action. The time of action depends on the problem being solved by the system.

The signals from the outputs of registers 120 and 121 control the passage of the video signal from the output of block 7 to the modulators (color inputs) of the CRT 8 using the eighth 122 and ninth 123 groups of I elements, the first inputs of which receive a signal of being in the window from the output 113 block 81.

To the inputs of elements AND of group 122, the video signal nocfynaeT is in direct form, to the inputs of elements of AND of group 123, inverse through the element HE 124.

A group of 122 elements And forms the components of the video signal for the corresponding colors in the window for symbols, and a group 123 for the background of the image in the window.

From the outputs of the elements AND groups 122 and 123, the components of the video signal through the elements OR of the group arrive at the modulators (color inputs) of the CRT 8 (output 114).

Each of the elements of the groups 122.1 23 and 125 forms only one color each.

When the situation changes, one of the registers 120 and 121, or both, is reset by signals from the outputs of the information system, after which a new command is written in them (the color code of the characters and the background image in the window).

Using a single command frees the information system from the need to generate color codes for all elements of the image in the window, and the device from the need to receive and store these codes. At this time, the information system may

used for other purposes not related to the formation of the color codes of the image elements.

Claims (1)

The invention of the device for displaying information on the screen of the electron-beam j-cabin by ed. St. No. 1476521, due to the fact that, to increase the device speed, it contains the thirteenth and fourteenth registers, the eighth and ninth groups of elements AND, the third element NOT and the second group of elements OR whose outputs are connected to CRT Modulators, inputs elements OR five the groups are connected to the outputs of the elements AND respectively the eighth and ninth groups, the first inputs of the elements AND of which are connected to the output of the first element AND, the second inputs of the elements AND of the eighth group and the input of the third element are NOT connected to the output of the modulation unit, the output of the third element is NOT connected to the second the inputs of elements AND of the ninth group, the third inputs of elements of both the eighth and ninth rpyijn are connected to the outputs of the thirteenth and fourteenth registers, respectively, whose inputs are the information inputs of the device.