SU1108434A1 - Device for displaying information onto crt screen - Google Patents

Abstract

1. DEVICE FOR DISPLAYING INFORMATION ON SCREEN OF ELECTRON-BEAM PIPE containing a control unit connected to a interface unit whose inputs are device inputs, a coordinate register whose inputs are connected to the interface unit outputs and one output of the control unit, the first converter code-voltage, whose porassd1o inputs are connected to the corresponding outputs of the coordinate register, an amplifier unit, one input of which is connected to the output of the code-voltage converter, a deflector system E LT is connected to an amplifier unit, a decoder, a counter, a backlight amplifier, the output of which is connected to a CRT modulator, characterized in that, in order to improve device performance, it contains a second code converter, a character code register, a character end driver, a backlight pulse driver , the driver of the character scan code, the trigger, the AND element, the OR element, the first inputs of which are so-ins with the corresponding outputs of the control unit, the output of the trigger is connected to another input of the AND element whose output is soy dinene with the first input of the counter, the second input of which is connected to the output of the OR element, the output of the driver of the end of the character is connected to the input of the control unit, the input of the trigger and the second input of the OR element, the output of the backlight pulse former is connected to the input of the second amplifier, the bit voltage is connected to the codes of the driver of the character sweep code, the other inputs are bitwise connected to the corresponding outputs of the control unit, and the output is connected to another input of the amplifier unit, s (L of the digit code register is connected to the outputs of the interface unit and one of the outputs of the control unit, and the outputs are connected to the inputs of the decoder, one input of the end of the character former, the pulse generator of the backlight, the former of the character scanner of the character scanner are connected to the corresponding decoder outputs, and the other inputs are connected in series 00 4 with the corresponding outputs of the counter. 2. The device according to claim 1, wherein the control unit comprises a series-connected quartz oscillator, a frequency divider, a pulse distributor and a readiness command generator, a sign position code generator, a sign code switch signal generator, the inputs of which are connected to the corresponding pulse distributor inputs and a readiness command driver, pulse distributor outputs, a splitter often

Description

you, the readiness command generator, the character position code generator and the sign code switch signal generator are the outputs of the block, the pulse distributor and the sign position generator 15

are inputs to the block, one of the inputs of the character position code generator is connected to one of the pulse distributor inputs, and the output is connected to the input of the readiness command.

The invention relates to the field of radio engineering, in particular, to sign indicator devices of radar systems, and can be used to display information on the screen of a cathode ray tube (CRT) separated from an electronic computing card.

The device for displaying information on the CRT screen, containing column and row counters, row and column decoders, address register with address decoder, memory block symbol (5c, control unit-1, CRT, comparators, 11J character string registers) is known.

However, the presence of switches does not allow for high speed display of information, in addition, the device is difficult to perform,

The closest technical solution to the present invention is a device for displaying information on a CRT screen containing a CRT, b: control current connected to the input unit by the light pen pulse shaping unit, the amplifier for the backlight, 6JTOKOM counterpart and the memory unit, the amplifier the illumination of the sign, connected to the CRT modulator, the memory unit connected to the character generator, the coordinate register and the matching unit, disabling the cathode ray tube system, connected to the amplifier unit, connected to the digital-analogue1 1m photoelectret, coordinate register connected to the adder kooodinat connected to the digital-to-analog converter and the character generator, znakopegerator connected to the control unit and amplifier illumination mark. The sign generator contains a serially connected counter

points of illumination of the sign, the decoder and the register of coordinates of points, containing ti rows. A pairing device through the cuts is connected to the computer 2.

A disadvantage of this device is that the sign display time is determined by the time of the most complex sign, i.e. simple characters, such as the number 1, the letter G, and complex,

for example, the letters Yu, F, are mapped at the same time. This leads to an increase in the display time of characters. In addition, since the succession of all the pulses from which the sign is formed to the illumination amplifier, the sign contour is constructed in such a way that the beam always moves along the visible part of the contour of the sign (see Fig. 2a). - icasaiio arrow), and this increases the display time of the sign, i.e. when the letter K is displayed, the beam passes the same contour sections twice,

 which reduces performance i This device is difficult to build.

The purpose of the invention is to increase the display speed in | |)).

The goal is achieved by the fact that a device for displaying p-1 information on the screen of an E10-ray tube containing a control unit connected to a interface unit whose inputs are device inputs, a coordinate register, inputs

which bit is connected to the outputs of the interface unit and to one output of the control unit, the first code-voltage converter, the inputs of which are bit-connected) with the corresponding outputs P1 of the Coordinator, the amplifier unit, whose input is connected to the output; The CRT bias system is connected to an amplifier unit, a decoder, a counter, a backlight amplifier, the output of which is connected to a CRT modulator, contains a second code-voltage converter, a character code register, an end driver ka, backlight pulse backlight shaper, character scan code driver, trigger, AND element, OR element, the first inputs of which are connected to the corresponding outputs of the control unit, the trigger output is connected to another input of the AND element, the output of which is connected to the first counter input, the second input of which is connected to the output of the OR element, you, the driver of the end of the character is connected to the input of the control unit with the trigger input and the second input of the OR element, the output of the backlight pulse former is connected to the input of the backlight body, The inputs of the second code-voltage converter are randomly connected to the outputs of the form of the body of the character scan code, the other inputs are connected bit-wise to the corresponding outputs of the control unit, and the output is connected to another input of the amplifier unit, the characters of the character code register are connected to the outputs of the interface unit and one of the outputs of the control unit, and the outputs are connected in series with the inputs of the decoder, one input of the end of the character shaper, the backlight pulse shaper, the character of the sweep code of the characters are connected respective outputs of the decoder, and the other inputs of bitwise connected to respective counter outputs. The control unit contains a series connected quartz generator, a frequency divider, a pulse distributor and a driver for the readiness command, a driver for the sign position code, a driver for the switch for the sign code, whose inputs are connected to the corresponding inputs of the pulse distributor and the driver for the readiness command, distributor outputs pulses, frequency divider, readiness command generator, sign position code generator, and () sign code switch signal generator are you the block moves, the inputs of the pulse distributor and the formator of the position code of the symbol н т n) are the blocks of the block. One of the inputs of the character positioner is connected to one of the inputs of the pulse distributor, and the output is connected to the input of the readiness command. FIG. 1 is a block diagram of a device for displaying information on a CRT screen; FIG. 2 - the display of the letters K, F, in FIG. 3 is a functional block diagram of the control unit; FIG. 4 - oscillograms of control signals for displaying a single character and text. The device for displaying information on the screen of a CRT contains an interface unit 1 associated with the control unit 2 and the coordinate register 3, the first code-voltage converter 4, the amplifier unit 5, the deflecting system 6, the decoder 7, the counter 8, the backlight amplifier 9 connected to the modulator CRT 10, the register of the character code 11, the driver of the end of the sign 12, the pulse shaper illumination 13, the driver of the scan code of characters 14, the second converter code-voltage 15, trigger 16, element And 17, element of the INR 18. In block controls 2 enter quartz generator 19 torr, a frequency divider 20, pulse distributor 21, the position of the sign code generator 22, driver 23 commands readiness, the switching signal generator 24. The code mark device operates as follows. From an external source of information through the interface unit 1, the control unit 2 is supplied with a sign of the type of information Coordinate (Fig. 4b) or Signs (Fig. 4i) and the code of the number of characters; Upon receipt of the Coordinate feature in the pulse distributor 21, the first negative clock sequence differential coincides with the Coordinate feature, and the coordinate register record (Fig. 4e) goes to the coordinate register 3 along the bus. Coordinate feature 3 coordinates through the matching register 1, the coordinate code arrives, which is written to the coordinate register 3 by the write pulse, and is sent to the first code-voltage converter 4. In accordance with the code in the code-code e 4 produces a voltage applied to the power amplifier 5. Under the action of this power, and on the power amplifier 5, a current is generated, and then amplifies, c, and arrives at the retracting system 6 of the CRT 10, deflects ;; screen corresponding to the coordinate code. After the beam has been tapped into the given screen mt, i.e. after 20 clock pulses, after the first readiness command (fig. 4c), a readiness command is generated in the control unit and is sent to an external source of information. This command from an external source of information sends the indicator 1 naki (Fig. 4-2.) And the number of characters code to the control unit 2. On the basis of the Signs coming to the pulse distributor 21, in Gs: there is produced a pulse of writing the register of the sign code (Fig. 4), which coincides with the Sign of the Signs (Fig. 4) and the negative sequence of the clock i-pulses (Fig. 4a) and the pulse of the beginning of the sign (fig. 4z). The pulse of the register of the register of the code of the sign writes the code of the sign received simultaneously with the npi 3pack Signs in the register of the code of signs 11, and the impulse the beginning of the sign arrives through the element OR 18 on the sc ((: -: tchik 8, setting it to zero | State, and on trigger 16, transfer It is in this state, when the output signal of the trigger 16 is received at input element 17 and passes through it the sequence of clock pulses from control unit 2 to counter 8. Counter 8 converts the sequence of clock pulses into a binary code. The code from register 11 enters Signs from the output of the degas 11) of the recorder 7 enter the generator of the end of the sign 12, the pulse shaper of the illumination 13 and the shaper of the scan code of the sign 14, and through the signals OR Teles 12-14 - for informational buses of multiplexer shapers 12-14. The address busses of these multiplexers come in the binary code from the output of counter 8. The outputs of counter 8 are addressed to the address buses of multiplexers of drivers 12-14 so that when counter 8 reads a sequence of clock pulses, starting from a pulse the beginning of the sign, the first clock switches to the output of multiplexers first information bus, second clock - second information bus, etc. Depending on which voltage levels (O or G) are on the pgforming tires, the voltage at the output of the multiplexers also varies. The patterns of the driver of the end of the sign 12, the pulse driver of the illumination 13, the driver of the sweep code of the mark 14 are composed in accordance with the program for each displayed sign, the same as for the letters K and F (Fig. 4) when developing the device. The sign of the sign coming from the decoder 7 through the elements I.PI (1) of the drivers 12-14 is fed to those information buses of the multi 1 Lexors, when enabled, the binary code of the clock pulse sequence received at the output of the counter 8, in accordance with the program for this sign 1–1 for example, for example, on the first (-1 multiplexer of the driver of the character sweep code 4 (in Fig. 26 the 1st XI is marked), the sign of the letter K is fed through: ILR elements of the formwriter 14 lia information buses D5, D7, D9, and the sign of the letter W -} ia information shi1n, 1 D1, W, D5, D11, D13 and D15, and on the second cartoon, 1plexer (in FIG. 2, the progeny X2) reads the letters K on D6, D10, the sign of the letter Ж — on D2, LZ, D5 - D13, D14, and so on. As a result, when marking multiplexers on busses of an adpecia .jx 14, a binary code removed from counter 8, and if there is a sign of the sign coming from decoder 7, at the outputs of the imager of the sign scan code 14 with a clock pulse of the clock pulse sequence: The code sweep code changes. Under the action of the code in the converter, the code —the voltage — 1–15 forms a voltage sweep of the sign (Fig. 2b shows the forcing voltage X – Y) that goes to the amplifier unit 5. In the amplifier unit 5, current is generated, amplified and , projected on the deflecting system 6, the beam is ejected on the CRT screen along the contour of the starting point mark oTHOcnTejn Ho. 71 where the beam was introduced by the coordinate voltage. In the pulse generator of the illumination 13, similarly to the generator of the sweep code of characters 14, counting pulses are generated. In the pulses of illumination, arriving at the amplifier of the illumination 9, for the letter K the 5th and 6th cycles from the pulse of the beginning of the sign are absent. When the beam on the screen of the CRT 10 passes a portion a5 and a6 (Fig. 2b), the outlines of the letter K are not highlighted. The shaper of the end of the sign 12 for the letter K selects the last Yu-th cycle (in Fig. 2, d is indicated by aH), and for the letter G the last 16th cycle, which are delayed on the delay line of the shaper 13 and delayed upon entering the trigger 16. to a state in which the sequence of clock pulses to the counter 8 through the element I does not arrive. The end of the sign (Fig. 4c), arriving at the counter 8 through the element OR 18, transfers it to the zero state. If the code of the number of characters corresponds to one character, then during the impulse of the end of the character, the impulse is terminated in the shaper of the position code of the character 22 End of the text (FIG. 4 |) upon receipt of which a readiness command is sent to the shaper readiness command 23 and the external command is received a source of information. When the readiness command is received from an external source, the Coordinate feature (Fig. 4i) is sent to the control unit 2, and the coordinate register will receive the coordinate code and the display device will repeat. If the code of the number of characters does not correspond to one, then after the first attribute is displayed and the pulse arrives. The end of the character in the shaper of the character position is 22 pulse. The end of the text is not formed. At the outputs of the sign body formation, the sign position code, which, arriving at the higher bits of the code-voltage converter 15, is converted into a voltage, according to which the beam on the CRT screen moves to a new familiarity. At the same time, 4 in the symbol-signal switching signal generator, a character-code switching signal (Fig. 4e) is generated, which through the interface unit 1 is fed to an external information source. At the inputs of the register of the character code 11, the code of the new character appears, and the impulse to write the character code (Fig. 4g), coming from the control unit 2 from the pulse distributor 21, writes this code to the register. After two cycles after the arrival of a pulse. The end of the sign on the pulse distributor there is formed a pulse of the beginning of the sign and the display of the next sign begins. Thus, the characters are displayed according to the character number code. After the last pulse arrives at the control unit 2, the end of the character in the control unit 2, a command is prepared to receive the following information from an external source of information. 1 The use of the invention will make it possible to increase the speed in comparison with the prototype, since all the signs in the prototype are written at the same time, determined by the most complex sign. Such signs are the letters Yu, F, etc., which are displayed, as seen in FIG. 2a, 20-clock pulses. At the same time, simple signs are displayed, for example, the letter G, the number 1, etc., which reduces the average display time of each character. In this device, simple characters are displayed with 6-clock pulses, and complex ones, like the letter W with 16-clock pulses. The average number of Clock pulses, of which the signs consist, will be 16 + 6 number of clock pulses in a complex sign; KG, P - the number of clock pulses in a simple sign. Therefore, characters are displayed 20 1.8 times faster.

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Claims (2)

1. A device for displaying information on the screen of an electron beam tube containing a control unit connected to an interface unit, the inputs of which are device inputs, a coordinate register whose inputs are bitwise connected to the outputs of the interface unit and to one output of the control unit, a first code-voltage converter, the inputs of which are bitwise connected to the corresponding outputs of the coordinate register, an amplifier block, one input of which is connected to the output of the code-voltage converter, a rejecting CRT system dinena with amplifier unit, decoder, counter, illumination amplifier whose output is connected to the modulator CRT, characterized in that, in order to improve device performance, it comprises a second transducer kodnapryazhenie, code register marks, generator end plate, shaper illumination pulse shaper ^g character sweep code, trigger, AND element, OR element, the first inputs of which are connected to the corresponding outputs of the control unit, the trigger output is connected to another input of the AND element, the output of which is connected to the counter input, the second input of which is connected to the output of the OR element, the output of the end-of-character driver is connected to the input of the control unit, with the input of the trigger and the second input of the OR element, the output of the backlight pulse former is connected to the input of the backlight amplifier, one input of the second code-voltage converter is bitwise connected to the outputs of the character sweep code generator, other inputs are bitwise connected to the corresponding outputs of the control unit, and the output is connected to another input of the amplifier unit, code register inputs are NAK is bitwise connected to the outputs of the interface unit and one of the outputs of the control unit, and the outputs are bitwise connected to the inputs of the decoder, one of the inputs of the driver of the end of the sign, driver of illumination pulses, driver 3 (L G of the character sweep code is connected to the corresponding outputs of the decoder, and the other inputs are bitwise connected to the corresponding outputs of the counter. '2. The device according to claim 1, characterized in that the control unit comprises a crystal oscillator, a frequency divider, a pulse distributor and a ready command shaper, a sign position code shaper, a sign code switching signal shaper, the inputs of which are connected to the corresponding inputs of the pulse distributor and shaper ready commands, output outputs 1108434> pulse divider, often divider 1108434 you, readiness command shaper, sign position shaper and sign code switching shaper are block outputs, the pulse distributor and sign position shaper are block inputs, one of the inputs of the sign position code shaper is connected to one of the distributor inputs pulses, and the output is connected to the input of the readiness command shaper.