SU955190A1 - Device for displaying data on cathode-ray tube screen (its versions) - Google Patents

Description

This invention relates to automation and computing. More specifically, it relates to an information display technique and can be used to visually represent information.

A device for displaying information comprising a converter of a code of symbols into a series of backlight pulses, a control unit and along each of the axes of beam deflection of the cathode ray tube, three controllable keys connected to the deflection coil of this axis and the control unit are known. One of the keys is connected to the source of the positive voltage of the other - to the source of the negative voltage, the third to the zero potential bus 1.

The drawbacks of the device are the limited set of reproduced symbols, the impossibility of displaying symbols of complex configuration.

Closest to the present invention is a device for displaying information on the screen of a cathode ray tube, comprising a control unit, the output of which is connected to the input of the backlight pulse generator, the output of which is connected

with the modulator of the cathode-ray tube, and to the inputs of the deflecting voltage formers in coordinates X and Y, the output of the deflector voltage generator along the coordinate X is connected to the horizontal deflection coil of the electron-conductor tube / switch, inverter and trigger, the input connected to the output of the control unit, and the output with the first input of the switch, the second input of which is connected to the output of the deflector voltage former along the Y coordinate and the input

t5 inverter g whose output is connected to the third input of the switch. The switch output is connected to a vertically deflecting coil of a cathode ray tube 2}.

The drawback of the device is that (the width of the character defined by the character code and the width of the inter-character space, determined by the sequence of characters, have a variable value, i.e. the character location in the row is not fixed, therefore it is impossible to display columns consisting of any characters 30 of this alphabet. The purpose of the invention is to expand the field of application of the device by fixing the familiarity in a row. The goal according to the first embodiment is achieved by the fact that the device containing the control unit backlight pulses / deflecting voltage generator along X and Y coordinates, the first switch, the inverter and the first trigger, the first input of the backlight pulse generator being the first input of the device, the output of the control unit connected to the first input of the first trigger, deflecting voltage driver inputs X and Y coordinates and the second input of the backlight pulse generator, the output of which is connected to the modulator, and the output of the first switchboard to the vertically deflecting coil of the cathode-ray tube, the output of the first the trigger is connected to the first input of the first switch to the second and third inputs of which the inverter input and output are connected, the control signal driver is entered, the amplifier, the second switch and the second trigger, the first output of the control signal generator is connected to the second trigger input, the output which is connected to the first input of the second commutator and to the first input of the amplifier, the output of which is connected to the horizontally deflecting coil of the CRT; the output of the deflecting voltage generator along the X coordinate of the connection It is connected to the second input of the amplifier; the second and third outputs of the driver of control signals are connected to the second and third inputs of the second switch, the output of which is connected to the input of the control unit. In the second embodiment, the device containing the control unit, the backlight pulse driver, the deflecting voltage formers in coordinates X and Y, the first trigger, the first switch and the inverter, where the first input of the backlight pulse former is the first input of the device, the output of the control unit is connected to the first the input of the first trigger, the inputs of the shaper voltage generators on coordinates 1; am X and Y and the second input of the backlight pulse former; the output of the latter is connected to the modulator and the output of the first switch to The vertically deflecting coil of the electron-beam tube, the output of the first trigger is connected to the first input of the first switch, the second and third inputs of which are connected respectively to the input and output of the inverter, a shaper is inserted. control signals, the amplifier and the second switch and the trigger, the first output of the driver of the control signals is connected to the input of the second trigger, the output of which is connected to the first input of the second switch and to the first input of the amplifier, the output of which is connected to the input of the inverter, the output of the voltage deflection generator coordinate Y is connected to the second input of the amplifier, the second and third outputs of the driver control signals are connected to the second and third inputs of the second switch, the output of which is connected to the input of the control unit no. The second variant of the device differs from the first in that; ITO the second input of the amplifier is connected to the output of the deflection voltage driver along the Y coordinate, rather than to the output of the deflection voltage driver along the X coordinate. The output of the amplifier is connected to the inverter input and not to the horizontal deflection tube coil. The output of the deflecting voltage generator along the X coordinate is connected to the horizontal deflection coil of the CRT. To reduce the display time of character gaps, i.e. In order to accomplish the additional purpose of improving the speed of the device proposed, the fourth output of the driver of the control signals is connected to the input of the first trigger, i.e. The starting coordinate of the sign mapping is forced. The driver of the control signals is made in the form of the first and second registers, the first and second elements of AND, and the first and second elements of OR, the first and second outputs of the first register are connected to the first inputs of the first and second elements AND, the second inputs of which are connected to the first and second outputs of the second the register, the other outputs of which are connected to the inputs of the first element OR, the first group of outputs of the second register is connected to the inputs of the second element OR, the output of the first element AND is the first output of the driver, the outputs The first and second OR elements are the second and third shafts of the driver, the output of the second element is the fourth output of the driver, the inputs of the first and second registers are the input of the driver, In the first version of the device, the driver of the control signals is constructed in such a way that the first group of outputs of the second the register is formed from the outputs of the bits of the second register, taken another.

In the second embodiment of the device, the first group of outputs of the second register of the driver of control signals is formed from the outputs of the bits of the second register taken through one.

The positive effect and the realization of the goal is achieved by the fact that on one familiarity both a 9-segment and an 18-segment polygram are displayed, for which it is necessary to change the speed of the ray along one of the coordinates, i.e. change the value of the deflecting voltage along this coordinate. In the first embodiment, the device contains an amplifier with a controlled transmission coefficient {equal to either 1 or 2) Deviation voltage along the X coordinate. In the second variant, the device contains an amplifier with controlled transmission factors (equal to either 1 or 0.5) voltage according to the W coordinate. The driver of the control signals determines the gain of the amplifier.

Figure 1 shows the structural diagram of the first variant of the device; figure 2 - structural diagram of the second version of the device; FIG. 3 is a block diagram of a driver control signals.

The device (Figures 1 and 2) contains a control unit 1, a backlight pulse shaper 2, a deflecting voltage shaper 3 on the X coordinate, a deflecting voltage shaper 4 on the Y coordinate, the first trigger 5, the first switch 6, the inverter 7, the electron beam a tube 8 with a modulator 9, a horizontally deflecting coil 10 and a vertical deflecting coil 11, a driver 12 of the control 7 (the signals, the second trigger 13, the second switch 14 and the amplifier 15.

 In the first embodiment of the device, the second input of the amplifier 15 is connected to the output of the deflection voltage generator 3 at the X coordinate. The output of the amplifier 15 is connected to the horizontal deflection coil 10 of the CRT 8. The deflection voltage generator 4 output at the Y coordinate is connected to the input of the inverter 7 (figure 1).

In the second variant of the device, the second input of the amplifier 15 is connected to the output of the deflection voltage generator 4 at the Y coordinate. The output of the amplifier 15 is connected to the input of the inverter 7. The output of the deflection voltage generator 3 at the X coordinate is connected to the horizontal deflection coil .10 electron beam tube 8 (Figure 2).

To reduce the time to display the inter-character gaps, i.e.

to increase the speed of the device, the fourth output of the driver 12 of the control signals is connected to the second input of the first trigger 5

(The driver 12 of the control signals (FIG. 3) contains the first 16 and second 17 registers, the first 18 and second 19 elements AND, the first 20 and second 21 elements OR.

0

In the first embodiment of the device, the first group of outputs of the second register 17 is formed from the outputs 18 of the bits of the register 17, taken first.

In the second version of the device

5, the first group of outputs of the second register 17 is formed from the outputs 18 of the bits of the second register 17 taken through one.

Control block 1 is intended

0 to generate signals that control the driver of the 2 light pulses, the driver of the 3 deflecting voltage on the X coordinate, the driver of the 4 deflecting voltage of

5 to the Y coordinate, the first trigger 5. The shaper of the 2 light pulses converts the signals arriving from the external device into a form sufficient to control through the modulator 9 the current of the illumination of the beam of the cathode ray tube 8 Shaper

3 declining voltage along the X coordinate generates deflection signals of the cathode ray tube

5 8 on the horizontal coordinate of the incoming signals at its input

from unit 1 control. Shaper

4 deflection voltage along the Y coordinate is intended to form the deflection signal of the cathode ray tube 8 in the vertical coordinate from the incoming signals from the control unit 1. The first trigger 5 controls the nepsHivi switch b.

five

In the first version of the device (Fig. 1), the inverter 7 inverts the deflection signal arriving at its input from the deflector phosmotor 4 along the U coordinate. The first switch 6 is intended to be connected to the vertical deflection coil 11 of the electron-beam signal tube 8 or the output of the shaper 4 of the deflecting voltage 5 along the Y coordinate, or from the output of the inverter 7 via the control signal from the first trigger 5. The shaper 12 of the control signals forms, from the code of the character coming from the external device, the signals ravl pervm guides 5 and second flip-flops 13, and signals supplied through the second switch 14 to the input of the control unit 1. The second trigger 13 controls the operation of the second comm5.

14 and the transfer ratio of the amplifier 15. The second switch 14 is designed to transmit to the control unit 1 signals from the driver 12 control signals depending on the signal of the second trigger 13 The amplifier 15 is designed to change the voltage from the deflection voltage generator 3 along the X coordinate along control signal from the second trigger 13.

In the second version of the device (FIG. 2), the inverter 7 inverts the signal,. coming to its input from amplifier 15. First switch 6 is designed to connect 8 vertically deflection coils 11 of a cathode ray tube 8 signals either from the output of amplifier 15 or from the output of inverter 7 via a control signal from the first trigger 5. Amplifier 15 is designed to change the voltage from the driver 4 of the deflection voltage on the Y coordinate on the control signal from the second trigger 13.

The first 16 and second 17 registers, which are part of the control signal generator 12 (Fig. 3), are intended for receiving, storing and transmitting code signals, controlling the sign received at their inputs. The first 18 element AND is designed to generate a control signal for the second trigger 13. The second 19 element AND is designed to generate a control signal for the first trigger 5. The first 20 OR gate is designed to form a sequence of eighteen pulses needed to display 18-segment polygrams The second 21 OR elements are designed to form a sequence of nine pulses needed to display 9-segment polygrams.

The device works as follows.

The signal from the external device determines the mode of operation of the driver 12 of the control signals. The signal from the first output of the shaping body 12 control signals recorded in the second trigger 13 ,. determines the number selection (Segments in the polygram: 9 or 18. gji depending on the state of the second trigger 13 (signal at the first input of the second switch 14) to the input of the control unit 1 receives either a sequence of eighteen pulses fed to the second input of the second switch 14, or a sequence of nine pulses applied to the third input of the second switch 14. The control unit 1 generates signals for controlling the backlight pulse shaper

the shaper 3 of the deflecting voltage on the X coordinate and the shaper 4 of the deflecting voltage on the Y coordinate, and the first trigger 5 on the first (counting) input. The state of the first trigger 5 controls the first switch by influencing the signal on its first input. A signal from the output of the inverter 7 is supplied to the third input of the first switch. The voltage from the output of the first switch 6 is fed to a vertically deflecting coil of the 11-conduit tube 8. To the first input of the driver, 2 backlight pulses are received from an external device, a character code 2 lights - signals from control unit 1. The illumination signals arrive at the modulator 9 of the electron-beam tube 8.

In order to display both 9-segment and 18-segment polygrams on one familiarity, it is necessary to change the scale of the speed of movement of the beam along one of the coordinates, i.e. change the value of the deflecting voltage along this coordinate.

In the first embodiment, this is achieved by switching on the amplifier 15 between the deflecting voltage generator 3 at the X coordinate and the horizontal deflection coil 10 of the electron-receiving tube 8. The signal from the deflection voltage shaper 4 at the Y coordinate through the first switch 6 is fed to the vertical deflection coil 11 electron beam tube (figure 1). The presence of a signal at the output of the second trigger determines the transfer voltage of the deflecting voltage along the X coordinate, equal to 2, the absence of a signal equals 1. The second register 17 is in shift mode — the signals at all its outputs appear alternately. Combining the first and second groups of outputs of the second register at the inputs of the element 20 OR allows to obtain a sequence of eighteen pulses at the second output of the driver 12 control signals. Combining the first group of outputs of the second register 17, representing the outputs of the bits of the second register 17 (out of 18 bits), taken separately, on the OR 21 element, allows to obtain a sequence of nine pulses at the third output of the driver 12 control signals .

In the second embodiment, the amplifier 15 is connected between the deflection voltage generator 4 along the coordinate Y and the input of the inverter 7 (the second input of the first switch b). The signal from the deflection voltage generator 3 along the X coordinate is fed to the horizontal deflection coil 10 of the electron-beam tube 8 (Fig. 2). The presence of a signal at the output of the second flip-flop 13 determines the transfer coefficient of the deflecting voltage on the Y coordinate, equal to 0.5, the absence of a signal equal to 1. Combining the first and second output groups of the second register 17 on element 20 OR forms a sequence of eighteen pulses at the second output driver 12 control signals. Combining the first group of outputs of the second register 17, representing the outputs of the second register bits (from among the 18 bits), one after another, on the OR 21 element, allows to obtain a sequence of nine pulses on the third output of the driver 12 signals.

The sequence of polygrams, intended both for displaying characters and inter-character spaces, is determined by character codes, i.e. The next character code determines the selection of the polygram to display the inter-character space and the polygram to display its own character. The initial state of the first trigger 5 determines the coordinates of the beginning of the display of the sign: the upper or lower left corner of the polygram. To reduce the time for displaying the inter-character spaces, the fourth output of the control signal generator 12 can be connected to the second input (setting) of the first trigger 5, i.e. the first trigger 5 can be forced into the state defining the coordinates of the beginning of the sign display and there is no need to form one or another polygram for the inter-character space, which increases the overall speed of the device.

The proposed device can be used in various information display systems. The version of the device with a controlled transfer ratio of the deflecting voltage along the X coordinate (option 1) is advisable to use in coordinate-sign indicators, since by reducing the average time for displaying signs, you can increase the amount of displayed coordinate information (diagrams, vectors, arcs, etc.) .

A variant of the device with a controlled transfer ratio of the deflecting voltage along the Y coordinate (option 2) is advisable to use in tabular-sign indicators, since the display time of any enac and inter-character space is the same (constant), which allows to simplify synchronization processes, make easier editing algorithms.

Claims (2)

1. A device for displaying information on a screen of a cathode ray tube (CRT), containing a control unit, the output of which is connected to the inputs of the backlight pulse former and the deflectors of deflection voltage along the X coordinates and, and with the first input of the first trigger, the output is connected to the first the input of the first switch, the second input of which is connected to the output of the deflecting voltage driver along the Y coordinate and the input of the inverter whose output is connected to the third input of the first switch, the output of which is connected to CRT vertically deflecting, the output of the backlight pulse generator is connected to a CRT modulator, characterized in that, in order to expand the field of application of the device by fixing the familiarity in the line, a second trigger, a second switch, an amplifier and a driver of control signals are inserted into it, the first output of which is connected to the input of the second trigger, the output of which is connected to the first input of the second KONwyTaTopa and to the first input of the amplifier, the output of which is connected to the horizontal deflection coil of a CRT, the output of the forcing device deflection voltage to the coordinate X is connected to the second input of the amplifier, second and third output of the control signals are connected to second and third input of the second switch, whose output is connected to the input of the control unit. 2. A device for displaying information on a CRT screen according to claim 1, comprising a control unit, the output of which is connected to the inputs of the backlight pulse former, the deflecting voltage former along the X and Y coordinates and the first input of the first trigger, the output of which is connected to the first input first switch 1, the second input of which is connected to the input of the inverter, the output of which is connected to the third input of the first switch, the output of which is connected to a vertically deflecting coil of a CRT, with a horizontal deflecting coil of which the deflection voltage driver's output is not in the X coordinate and the modulator of which is connected to the output of the backlight pulse driver, due to the fact that a second trigger, a second switch, an amplifier and a control former are connected to the device, the first output of which is connected to the second trigger input / output of which is connected to the first input of the second KONwyTaTOpa and to the first input of the amplifier, the output of which is connected to the input of the inverter, the output of the deflecting voltage generator, in the Y coordinate, is connected to the second input The second and third outputs of the driver of the control signals are connected to the secondary and the third inputs of the second switch, the output of which is connected to the input of the control unit. 3, the Device in PP. 1 and 2, characterized in that the fourth output of the driver of the control signals is connected to the second input of the first trigger, 4, the device according to claims 1 and 2, characterized in that the driver of the control signals contains first and second registers. The first and second elements are AND, the first and second elements are OR, the first and second outputs of the first register are connected to the first inputs of the first and second elements AND, the second inputs of which are connected to the first and second outputs of the second register, the other outputs of which are connected to the inputs of the first element OR , the first group of outputs of the second register is connected to the inputs of the second element OR, the output of the first element AND is the first output of the driver, and the outputs of the first and second elements OR are the second and third outputs of the driver The output of the second element AND is the quarter output of the driver, the inputs of the first and second registers are the input of the driver. Sources of information taken into account in the examination 1, USSR Author's Certificate 302713, cl. G About F 3/14, 1969. 2. Authors certificate of the USSR 746621, cl. G 06 K 15/20, 1977.