SU1485300A1 - Data display unit using screen of tv indicator - Google Patents

Description

The invention relates to computing technology and automation and can be used to display symbolic information from a computer. The purpose of the invention is to increase the information capacity of the device. The device contains

1485300

there is a data block I data set, the first 2, the second 33, the third 39, the fourth 40, the fifth 41 and the sixth 35 switches, the operational units 3 and the permanent 17,

18 memory, the first 4, the second 5, the third 23, the fourth 24,. The fifth 25 and sixth 26 decoders, counters of television lines 6,7, elements. expansions 31 ₅ familiarity numbers 32, text lines 33, first 8 and second 9 readers, 10 and 11 strobe drivers, character generators 12. and 13, first 14 and second 15 comparison units, parallel code converting block 16 ;, multiplexers 19 - 22, driver 2 / gates displaying - .. my characters, a block of 28 elements OR,

television indicator 29, pulse generator 30, OR element 34, communication priority control block 42 Through the data input block 1, the device receives the familiarity number, symbol code, 'offset с and remote symbol and priority of neighboring symbols during registration, which are recorded in block 3 of memory. The codes read from block 3 in character generators 12 and 13 are converted into a point representation, and in block 16 video signals of symbols are formed from it, Bloch 42 passes 28 elements of block OR to the inputs of the block according to their priorities when combined, which ensures their undistorted display "! il ”

The invention relates to computing and automation and can be used to display character information from a computer.

The purpose of the invention is to increase the information capacity of the device.

The drawing shows a functional block diagram of the device.

A device for displaying information on the TV screen. The terminal contains the data input unit 1, the first switch 2, the RAM block 3, the first 4 and second 5 decoders, the first 6 I am the second 7 counters of television lines, the first 8 to the second 9 subtractors, the first GO to the second 1? gating pulse shaper., first 12 and second 13 character generators, first 14 and second 15 equalization blocks, block 16 converting a parallel code into a serial one, first 17 and second 18 constant memory blocks, first 19, second 20, third 21, fourth 22 multiplexers, third 23, fourth 24, fifth 25 and sixth 26 decoders, shaper'17 gates of displayed symbols, block 28 elements OR, television indicator 29, 30-pulse generator, counter 31 decomposition elements, counter 32 familiarity numbers, counter 33 lines text, element OR 3 4, the sixth switch 35, informational care 36 'of the device, input 37 of the video message · 5 devices. The driver 27 of the strobes of the displayed characters contains the second 38, the third 39, the fourth 40 and the fifth 41 switches to the priority control unit 42 ”

The device works as follows.

In the input mode, information about the characters to be displayed on the screen of the television indicator -29 from an external computer (not shown) enters the data input unit 1 at input 36 ”This information contains the address part that determines the familiarity number where the output should start

θ of the sign on the screen, the code of the sign itself, the horizontal displacement of the sign 21X and vertical direction, as well as the priority levels in the horizontal and vertical directions for adjacent signs ”

In block 1 of data entry, these codes are divided into

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components: familiarity number, sign code, ΔΧ offset and control and priority levels. The familiarity number determines on which of the familiarity the display of the sign will begin. ”The screen is divided into Μ * Ν familiarity (M is the number of character lines, N is the number of characters in a line), the number of which is defined by the 5 possible number of addressable memory cells of the block 3 drives memory. The width of the memory cells of block 3 is determined by the size of the library

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Theca signs and the accuracy of the installation of the sign Δ X horizontally and / | Υ vertically. Information about familiarity numbers from data entry unit 1 through the first switch 2 comes when information is downloaded to the address inputs of the drives of memory block 3, and information about codes and offsets is received to the information inputs of these drives. Information about the signs that start to be displayed on the even lines of text is entered into one drive of the memory block 3, and the other drive records information about the signs that are beginning to be entered on the screen into odd sign strings „Information about the display priorities of the characters of the familiar acquaintance is entered into software accessible register of data input block 1 from an external computer.

In playback mode, the first switch 2 is connected to the address inputs of memory 3 and the outputs of the counter 32 familiarity numbers and the counter 33 lines of text, which produce a sequential interrogation of the cells of the drives of memory 3, from which information about two characters is simultaneously read, the output of which should begin in two familiarity, located one below the other in even and odd sign lines. Moreover, one drive provides information to the first decoder 4, subtractor 8, driver 10, character generator 12, memory block 17 and comparison unit 14, and the other is functionally connected with decoder 5, subtractor 9, driver 11, character generator 13, comparison block 15, respectively.

The first 6 and second 7 TV line counters have the same conversion factor equal to the number of television systems in two sign lines, but are out of phase when they are counted by one sign line. The numeric equivalents of the vertical characters offset as subtractors are sent to subtractors 8 and 9, for which the numbers recorded in the current TV line are the first 6 and second 7 TV lines counters, respectively. The results of the calculations are sent to the first 10 and second 11 drivers, and are also

the younger address bits of character generators 1 2 and 13, expanding the character vertically, and the high addresses of the character generators determining the displayed character are character codes read from the drives of memory block 3. Shapers 10 and 11 form a signal to allow or prohibit the display of a character on the screen in the current TV line and determine the ordinal number of the line of the displayed character. However, the resolution ^ to the character generators 12 and 13, as well as to the comparison blocks 14 and 15, is issued only if the decoders 4 and 5 indicate non-zero character codes read from the drives of the memory blocks 3. Ta In this way, the vertical alignment is performed within the familiarity of the character with the accuracy of the television line.

Installing the symbol horizontally within familiarity with an accuracy of one raster point is carried out by comparison blocks 14 and 15, which fix the moment of equality of the current value of the counter 31 decomposition elements and horizontal character shifts 4X coming from the drives of memory block 3, from which the parallel code conversion starts from the outputs of character generators 12 and 13 in serial. The successive horizontal scanning codes are removed from the information outputs of conversion unit 16, and if the first accumulator contains information about characters that start to be output in an even sign line, then the * and the first and second information outputs of block 16 remove the sequential codes of characters that start respectively, in the even and odd familiarity of the even character string; similarly, if in the second * 'storage of memory block 3 information is stored about symbols that start to be displayed in an odd sign line, then the third and fourth information outputs of block 16 receive consecutive horizontal scan codes, the output of which begins with an even and odd familiarity odd character string. Each informational output of block 7

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In the 16th transformation, a control output is assigned to the output, from which the strobe pulse is removed for the duration of the output of one line of the displayed symbol. The signals from the information and control unit 16 outputs received respectively by the first and second group of inputs of block 27 gates formers displayed characters where appropriate switches 38-41 is performed boron ήπη ^s You are a display character code or serial string symbol strobe line, depending on whether the transparent character background

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by overlaying a symbol image onto a background graphic image,

¹ or not, as evidenced by the status of the outputs of the decoders 23-26, connected to the control inputs of the switches of the former 27 gates of the displayed characters. The source information for decoders 23-26 .. is the background code produced by the multiplexers 19-22 for the duration of the display of the character string. To a single symbol or group of symbols in blocks 17 and 18 of post-storage, the memory codes correspond to the contour color and the background color of the character, which are selected by the character codes read from the accumulators of memory block 3. The light ratio codes arrive at multiplexers 19-22, and the coloring occurs under the action of consecutive codes from the information outputs of the conversion unit 16, while the outputs of the multiplexers 19-22 sequentially form η-bit (the number · η is determined by the number of displayed colors) parallel codes that are numerical equivalents of the color of each point that arrive at the information inputs of a block of 28 elements OR, where these codes are switched depending on the state of its inputs, to which it is connected enes unit 42 outputs strobe shaper 27 displayable characters.

The priority control block 42 determines the sequence of video signals passing to the block 28 of the elements OR when characters are superimposed.

Signals b come from block 1 and determine the priorities for displaying characters when overlapping horizontally in the character string (b) and vertically between adjacent character

lines (s). So when b = 1 i = 1, preference is displayed in a character string to characters whose output begins in an even familiarity, and between significant lines to characters whose output begins in an even signed string.

The resulting signal in the color codes of the displayed symbols is fed to the first input of the sixth switch 35 of the display channels, to the second input of which codes are supplied from the external, with respect to the claimed, background graphic imaging devices, and the characters have higher priority than the color background graphic image therefore, the control of the switch 35 of the display channels occurs under the action of a control signal from the output of the OR 34 element. From the switch output of the 35 channels of the display, the color codes Received on the video input of the television indicator -29 "

Unit 16 converts parallel codes into consecutive under the action of clock pulses arriving at its clock input from pulse generator 30, the pulse repetition period being equal to the duration of illumination of one image point, and the resolution to output the even or odd character character occurs using a signal the second clock input unit 16 conversion. Line synchronization of the television indicator 29 is carried out from the counter 32 of the familiarity number, and the frame synchronization from the counter of 33 lines of text.

Thus, the invention provides an increase in the information capacity of a device by displaying color symbol information on a color background. In this case, the possibility of non-distorting partial overlapping of characters within the familiarity is provided.

Claims (1)

Claim A device for displaying information on the screen of a television indicator, containing a data input unit, the first switch, the memory block, the first and second counts-1485500 5 o television lines, first to second evaluators, first and second gating pulse shapers,. the first and second character generators, the first and second blocks of comparison, $ parallel code to serial conversion unit, OR block, pulse generator, decomposition element counter, familiarity number counter, text line counter, the first output of which is connected to the control input of the first switch, the outputs of which are connected to the address inputs of the RAM block, information the input of which is connected to the first output of the input unit, the second output of which is connected to the first information input of the first switch, 20 the second information entry which 'connected to the first output of the familiarity number counter, the second output of which is connected to the horizontal sync pulse input of a television ICDI 25, the personnel sync pulse input of which is connected to the second output of the text line counter, the clock input of which is connected to the first output of the second TV row 30 lines, the second the output of which is connected to the first input of the first subtractor, the second input of which is connected to the first output of the operational memory unit, the second output of which is connected 2 ^ to the first input of the second subtract For * whose second input is connected to the output of the first television line counter, the clock input of which and the clock input of the second television line counter are connected to the third output of the familiarity number counter, the clock input of which is connected to the first output of the decomposition element counter, the clock input of which 45 clock input of the parallel code-to-serial conversion unit is connected to the output of the pulse generator, the fourth output of the number counter familiarity is connected to the address input of the pair conversion unit llelnogo code in sequence, a first gate input of which is connected to the output of the first comparator, the first input of which _ss _ connected to the third output of the main memory unit, the fourth output of which is connected to the first input of the second comparator, the output of which is connected to the input of the parallel-to-serial code conversion unit, the first and second information inputs of which are connected to the outputs of the first one and the second character generator, · * the output of the first subtractor is connected to the first address input of the first character generator and to the first; the input of the first gating pulse shaper, the output of which is connected to the control input of the first character generator, the second address input of which is connected to the fifth output of the RAM unit, the sixth output of which is connected to the first address input of the second character generator, the control input of which is connected to the output of the second gating pulse generator, the input of which and the second address input of the second character generator are connected to the output of the second subtractor, the second inputs of the first and second comparison units soy Ina with the second output of the decomposition element counter, the information input of the data input unit is the information input of the device, characterized in that, in order to increase the information capacity of the device, the eye contains the first, second, third, fourth, fifth and sixth decoders, the first and the second blocks of permanent memory, the first, second, third and fourth multiplexers, the gate driver of displayed characters, including the second, third, fourth, fifth and sixth switches and the priority control unit, and the OR element, in The output of which is connected to the control input of the sixth switch, the first information input of which is connected to the output of the block of elements OR, the first, second, third and fourth outputs of the priority control block are connected to the first, respectively. the second, third and fourth inputs of the block of elements OR and the inputs of the element OR, the fifth, sixth, seventh and · .. eighth inputs of the block of elements OR are connected to the first inputs of the first, second, third and fourth multiplexers, the second inputs of which are connected to the inputs of the third the fourth, fifth and sixth decoders, the outputs of which are connected to control 1 ι - 14853001 2 the secondary inputs of the second, third, fourth and fifth switches, the outputs of which are connected respectively to the first, second, third and fourth inputs of the priority control block, the fifth and sixth inputs of which are connected to the third output of the data input unit, the second input of the first driver ^ g strobe pulse connected to the output of the first decoder, the input of which and the address input of the first block, permanent memory connected to the fifth output of the memory block, the sixth output of which is connected to the input of the second encoder and to the address input of the second permanent memory unit, the output of the second decoder connected to the second input of the second. 20 a gate pulse driver, the output of which is connected to the control input of the second comparison unit, the control input of the first comparison unit is connected to the output of the first 25 gate pulse generator, the output of the first block of permanent memory is connected to the control inputs of the first and second multiplexers; the output of the second block of permanent memory is connected to the control inputs of the third and fourth multiplexers, the information inputs of the first, second, third and fourth multiplexers and the first information 'inputs of the second, third, fourth and fifth switches, respectively, are connected to the first, second, third and fourth outputs of the parallel to serial code conversion unit, respectively the sixth, seventh and eighth outputs of which are connected to the second informational inputs of the second, third, fourth and fifth switches, respectively, of the video input of the bodies The evisive indicator is connected to the output of the sixth switch, the second information input of which is the video signal input of the device.