SU1037328A1 - Graphic data display device - Google Patents

Abstract

1. A DEVICE FOR DISPLAYING GRAPHIC INFORMATION, containing a series-connected buffer storage unit, a first register, a line generation unit, the output of which is connected to the inputs of the buffer memory unit and the first register, in order to increase the informativeness of the image by displaying lines with a set of symbols of the alphabet Mrse. it contains serially connected second register, decoder, symbol generation block. And the element whose input is connected to the output of the line generation block whose output is connected to the input of the character generation block and the first input of the second register of the second and third input of which is connected So, the output of the symbol generation block is connected to the input of the buffer block block and to the fourth input of the second register.

Description

fi9.1

2. A device according to claim 1, characterized in that the symbol generation block contains six OR elements, a counter, nine AND elements, four waiting generators, the first input of the first element, OR is the first input of the block, and the output is connected to one From the counter inputs, the first output of which is connected to the first input of the first element I, the second output of the counter is connected to the first inputs of the second, fifth and seventh elements And, the third output of the counter is connected to the first inputs of the third and eighth elements And, the fourth output of the counter is connected with pen the input of the seventh element And the second

the inputs of the first, second, third and first inputs of the fourth and sixth

AND elements are the second input, the second inputs of the fourth and fifth AND elements are the third input of the block, the second inputs of the sixth, seventh, eighth and ninth elements of AND are the fourth input block, the output of the first AND element is associated with nepBfc a input of the second element OR, the output of the second element AND is connected through the first standby generator, to the second input of the second element OR ,;

the output of the third element AND is connected to the third input of the second element OR, and to the first input of the fifth element OR, the output of the fourth element AND through the second waiting generator is connected to the first input of the third element OR, the second input of which is connected to the output of the fourth element AND to the second input of the fifth element OR, the output of the sixth and seventh elements AND through the third and fourth generators are connected respectively with the first and second inputs of the fourth element. OR, the third input of which is connected to the output of the eighth AND element, and the fourth input is connected to the output of the ninth AND element, to the third input of the fifth OR element, the output of which is connected to the second input of the first OR element and is the first output of the block, the fourth output the OR element is connected to the third input of the sixth OR element, the output of which is connected to the counter inputs and is the second output of the block.

one

The invention relates to aBTOMaTH ke and computing technology and can be used to display various curves on a screen of a cathode ray tube (CRT) on incoming data in a computer code.

A device is known that consists of a buffer memory block, a register, a full-format raster generator, and blocks for converting a full-pixel-1 raster code to a CRT illumination pulse Cl,

The disadvantages of this device are its complexity, the low quality of the curves depicted due to the insufficient number of decomposition elements in them, as well as the fact that they contain only the information contained in their shape and location,.

The closest technical solution to the invention is a device for displaying graphic information consisting of a buffer memory block, a first register and a curve generating block, the inputs of which are connected to the buffer memory output of the first buffer through the first register and one of the outputs to the block input buffer memory and one of the inputs of the first register 12.

A disadvantage of the known device is that the displayed curves contain information which is enclosed in their shape and location. In the practice of shipbloods, the trajectories of ships should contain additional information, which, as a rule. displayed as simplified formulas.

This leads to a decrease in the frequency of regeneration of the picture displayed on the CRT screen, and to a deterioration in the quality of the displayed situation. Moreover, because of the need for oToj6pi "e-, no formulas for curves do not always succeed in displaying the necessary information in this part (other events that are necessary for making a decision taking into account the information of the displayed curve). All this reduces the effectiveness of ship conditions. x cpelacTB displays information on incoming data in machine code.

The purpose of the invention is to improve the information content of the image by

display lines with a set of Morse code characters.

The goal is achieved by the fact that the first register, the line generation block, the output of which is connected to the inputs of the buffer memory block and the first register, are connected in series to the device, the output of which is connected to the inputs of the buffer memory block and the first register are connected in series — the second register, the decoder, the block character generation and the element AND whose input is connected to the output of the line generation unit, the output of which is connected to the input of the character generation unit and the first input of the second register, the second and third inputs of which are connected to the outputs of the buffer memory block; the output of the symbol generation block is connected to the input of the buffer memory block and the fourth input of the second register. In addition, the symbol generation block contains six OR elements, a counter, nine AND elements, four waiting generators, the first input of the first OR input is the input of the block, and the output is connected to one of the inputs of the counter, the first output of which is connected to the first input the first element of the I, the second output of the counter is connected to the first inputs of the second, fifth and seventh elements And, the third output of the counter is connected to the first inputs of the third and eighth elements And, the fourth output of the counter I with the first input of the seventh element And, the second inputs The first, BTopioro, third and first inputs of the fourth and sixth And elements are the second input of the block, the second inputs of the fourth and fifth And elements are the third input of the block, the second inputs of the sixth, seventh, eighth and ninth And elements are the fourth input block, the output of the first element AND is connected with the first input of the second element OR, the output of the second element AND is connected via the first waiting generator to the second input of the second element OR, the output of the third element AND is connected to the third input of the second element OR and to the first input of the fifth el OR, the output of the fourth element AND through the second waiting generator is connected to the first input of the third element OR, the second input of which is connected to the output of the fourth AND element and to the second input of the fifth OR element, the output of the sixth and seventh AND elements through the third and fourth waiting the generators are connected respectively to the first and second inputs of the fourth OR element, the third input of which is connected to the output of the eighth AND element, and the fourth input is connected to the output of the ninth AND element, to the third input of the fifth OR element, the output of which is connected to the second input of the first OR element and is the first output of the block, the output of the fourth OR element is connected to the third input of the sixth OR element, the output of which is connected to the counter inputs and is the second output of the block. FIG. 1 is a structural diagram of p in FIG. 2 is a functional diagram of the symbol generation block / in FIG. 3 is a block diagram of the line generation block. The device contains a buffer memory unit 1, the first 2 and second 3 registers, the character generation unit 4, the decoder b generation unit 5, and the element 7. The character generation unit 4 contains the first element OR 8, the counter 9, from the first to the ninth elements And 10-18, first through fourth. waiting generators 19-22, from the second to the sixth elements OR 23-27. The line generation unit 5 contains a code converter — time interval 28, first and second converters code to voltage 29 and 30, differentiating element 31, first and second drivers 32 and 33. The device works as follows. Under the influence of the signal coming over the bus a from the buffer 1 memory block, the first 2 and second 3 registers are reset to zero, and the symbol generation unit 4 is reset to the initial state. Then from block 1 to register 2 is sent the code of the displayed curve, and in register 3 - the code of the Morse code symbol. Under the influence of the code, which is located in register 2, the line generation block 5 generates voltages Un Ct and U) (Y, which are supplied to the deflecting system EM (not shown in Fig. 1). Under the influence of these voltages moves in the plane of the CRT screen along the line of the displayed curve. Under the influence of the code in register 3, one of the output busbars of the decoder is selected b. The number of these tires is equal to the number of alphabet characters provided for using or in parts of the forming curves. The selected output bus of the decoder provides for the formation of 4 rectangular pulses of duration T and 3 G in the block, where f- corresponds to the display of a point in the Morse code symbol, and 3 T - a dash (. The pause between these symbols). The block diagram of block 4 is suitable below. Square pulses from the output of block 4 arrive at one of the inputs. ; Dov element AND 7. At the second input of this element, a signal comes from the light UT: an electron beam formed in block 5. This is achieved by forming the backlight pulses Of. g which are removed from the output of the I 7 and are supplied to the control electrode of a CRT. (Fig. 1 is not shown; after the formation of a sequence of pulses for one letter of Morse code in block 4, a pulse is generated that arrives at register 3, which achieves a reset of this register to zero. In addition, this pulse goes to block 1, than the next code of the Morse code is sent to register 3. At the moment when the voltage Ox (t) and Ov (t) are finished forming, for the entire displayed curve or for its part in block 5 a signal is generated that resets the registers 2 and 3 to zero and informing unit 1 about the end of the process displaying the curve or its part. The unit works (Fig. 2) in the following sequence. The signal coming over the bus a from block 1 (Fig. 1) passes through the first element OR 8 (Fig. 2) and sets counter 9 to the initial state in which the signal, equivalent to one, is removed from its first output bus. In the case that the first output bus of the decoder 6 is selected, then the signal is removed from the output of the first element And 10, if the second output bus of the decoder b is selected, this signal is removed from the output of the fourth element, And 13, if a third is selected The output bus of the decoder b, then the signal is removed from the output of the sixth element I 15. We assume that the first output bus of the decoder 6 is selected (Fig. 1. In this case, the signal taken from the output of the element AND 10 passes through the second element OR 23 and through the sixth element 27 transfers the counter 9 to the second steady state, at which the signal equivalent to one is removed from the second output bus of this counter. The transient time in the collector 9 and elements 10, 23 and 27 determines the duration T of the pulse O h from the output of the element OR 27 This pulse goes to the element AND 7 (Fig. 1, which achieves the display of a point in the generator curve displayed on screen of a CRT. A signal taken from the 1st of the second element 11 and starts the first waiting generator 19 / which generates a rectangular pulse with a duration of 3 t. This pulse passes through the elements 23 and 27, which results in the transfer of the counter 9 to the third steady state and mapping in generatively The dash curve displayed on the CRT screen. The noted transient time determines the distance between adjacent elements of a single Morse code symbol.Likewise, the signal taken from the output of the third element And 12 causes the point on the CRT screen to display a reproducible curve. The first Morse code symbol, which forms part of the generatrix of the displayed curve, has the following form (.-). Since the signal taken from the output of the And 12 element, displays the last element of the Morse code symbol, t But it passes through the fifth element OR 26 and sets the counting 9 through the element OR 8 to the initial state and resets the second register 3 (FIG. 1) to zero. In addition, this signal informs block 1 (Fig. 1) of the end of the process of displaying the first symbol in the crypto generator. howl From block 1 to register 3 (Fig. 1, the code of the second character of the alphabet is delayed, Morse. The noted delay determines the distance between the characters in the generator curve. It is easy to see that elements 13 and 14 together with the waiting generator 20 provide the display ( -.), And 15-18 elements, waiting generators 21 and allow to display (-) Increasing the size of the displayed alpha BijiTa Morse code characters causes an increase in the number of output buses of the decoder b (Fig. 1) generators. Block diagram 5 when using the method of forming the functional voltages 0 () and U) Ct) may be any. Example. The block structure for piecewise linear approximation of & unraveling curves (Fig. 3. The operation of the circuit proceeds in the following sequence. From block 1 to the corresponding bits of register 2 is sent the code equivalent of LR of the i -th section of the curve, - the projection codes of this segment on axis of the rectangular coordinate system. The code equivalent of J L J in the converter code - the time interval 28 is converted into a rectangular pulse, the duration of which is proportional to the length of this segment.

Code equivalents are converted in the first 29 and in the second 30 converter, respectively, the code is the time interval into voltages proportional to iX and amp respectively.

At the moment of termination of the pulse removed from the output of the converter 28 from the output of the differentiating element 31, a short pulse is removed, which resets the register 2 (FIG. 1) to zero. This results in the formation of not the voltages taken from the outputs of the converters 29. and 30, but pulses , the duration of k6. the second is proportional to the length of the displayed segment of the curve, and

Strfe Mt / t imiMtifeaia- yxtmefof ffinTf)

amplitudes are proportional, respectively). Under the influence of these pulses from the output of the first 32 and second 33 drivers, the voltages Ox (tt) and U) (i) vary, linearly varying, and under the influence of the sequence of these pulses, piecewise linearity.

The signal from the output of element 31 goes to block 1f, its information about

0 completion of the process of displaying this part of the curve. From block 1 to register 2, the code of the next section of the displayed curve is sent.

Technical and economic effectiveness of the invention is to increase the information content of the displayed information.

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fCfjoKy f and case 2 Pfttti.)

Claims (2)

1. DEVICE FOR DISPLAYING GRAPHIC INFORMATION, containing a series-connected buffer memory block, a first register, a line generation block, the output of which is connected to the inputs of the buffer block, FIG! memory and the first register, characterized in that, · in order to increase the information content of the image · by displaying lines with a combination of characters of Мрр guarantee. it contains a second register, a decoder, a character generation unit connected in series. And an AND element, the input of which is connected to the output of the line generation unit, the output of which is connected to the input of the character generation unit and the first input of the second register, the second and third inputs of which are connected to the outputs of the buffer unit memory, the output of the character generation unit is connected to the input of the buffer memory unit and the fourth input of the second register. > 2. The device according to π. 1, about t l and - ^! characterized in that the symbol generating unit contains six OR elements, a counter, nine AND elements, four waiting generators, the first input of the first element. OR is the first input of the block, and the output is connected to one of the inputs of the counter, the first output of which is connected to the first input of the first element AND, the second output of the counter is connected to the first inputs of the second, fifth and seventh elements AND, the third output of the counter is connected to the first inputs of the third and eighth elements And, the fourth output of the counter is connected to the first input of the seventh element And, the second 'inputs of the first, second, third and first inputs of the fourth and sixth elements And are the second input of the block, the second inputs of the fourth and fifth element And - the third input of the block, the second inputs of the sixth, seventh, eighth and ninth elements are the fourth input of the block, the output of the first element And is connected to the first input of the second OR element, the output of the second element And is connected through the first waiting generator ^ to the second input of the second element OR ;; the output of the third AND element is connected to the third input of the second OR element and to the first input of the fifth OR element, the output of the fourth AND element * through the second standby generator is connected to the first input of the third OR element, the second input of which is connected to the output of the fourth AND element and the second input of the fifth element OR, the output of the sixth and seventh elements And through the third and fourth generators are connected respectively with the first and second inputs of the fourth element. OR, the third input of which is connected to the output of the eighth AND element, and the fourth input is connected to the output of the ninth AND element, to the third input of the fifth OR element, whose output is connected to the second input of the first OR element and is the first output of the block, the output of the fourth OR element is connected to the third input of the sixth OR element, the output of which is connected to the inputs of the counter and is the second output of the block. A disadvantage of the known device is that the displayed curves contain information that is enclosed in their shape and location. In the practice of navigation, ship trajectories should contain additional information, which, as a rule, is displayed in the form of simplified forms. This leads to a decrease in the frequency of regeneration of the picture displayed _; on the CRT screen, and to a deterioration in the quality of the displayed environment. Creme. d) because of the need to display forms for curves, it is not always possible to display the information needed in this part about other events necessary for making a decision taking into account the information of the displayed curve. All this reduces the effectiveness of the means used in the ship’s conditions for displaying information on data received in machine code. The purpose of the invention is to increase the in 25 formatability of the image by displaying lines as a combination of Morse code symbols. This goal is achieved. That is, in a device containing 30 series-connected block used farm memory, first register, block