SU930363A1 - Indication device - Google Patents

Description

(5) DEVICE FOR INDICATION

one

The invention relates to automation and computing, in particular, to systems for displaying sign information on a gas discharge display panel.

A display device is known, comprising a gas-discharge display panel, whose vertical tires are connected via keys, memory and shift registers, a character generator with a memory unit, horizontal panel buses through a block of power amplifiers and a matrix distributor are connected to a fragment number counter and the count -, chick number of rows fl.

This device is complicated because it contains a control and clocking unit, which has a large number of links with other units. In addition, the device is characterized by a low reliability of displaying information, as there is a long period of time between the connection of neighboring fragments of familiarity, equal to the product of connecting the fragment to the number of familiarity in the column. The pause between adjacent fragments is due to the fact that the sweep is carried out by the successive capturing of the cells of the first fragments in all familiarities, then the second, and so on. During the time between connecting adjacent fragments, the initial ionization decreases to a low level.

The closest technical solution is a device for displaying information containing serially connected code converter, memory block, character generator, shift register, information register, high voltage keys that are connected to horizontal panel buses, vertical panel buses through serially connected high voltage keys and fragment decoders and more familiar- fragment counters and familiarity are connected. The fragment estimator is also connected to the familiarity counter and the line estimator, which is connected to the information register, the memory block and the clock frequency generator, and the clock frequency generator is connected to the shift register. The device also contains an address counter connected to the code converter and the memory unit to which the familiarity counter 2 is connected. The disadvantage of this device is low reliability at the first, initial and new ignition. The first ignition is the ignition of the cells after a long interruption in the operation of the device. The initial one is the ignition of checks that have not yet been disturbed in their work. New — Ignition of the cells that did not participate in the previous scan cycle, but were in familiarity, where part of the cells burned in the previous scan cycle. The ignition delay time at the first ignition is maximum, it is longer than the initial ignition delay time, which is longer than the new ignition delay time. The minimum delay is re-ignition — ignition of cells that participated in the previous scan cycle. Due to the low initial ionization level, the ignition delay for cells with high ignition voltage is comparable to the connection time. Therefore, the device has a low reliability of cell ignition after a long interruption in the device operation, after several gaps in the text and familiarity that are not yet involved in displaying information . The purpose of the invention is to increase the reliability of the device. To achieve this goal, a display device containing serially connected code converter, first counter, memory block, character generator, two registers and first block of keys, whose outputs are connected to horizontal buses of the display panel, second counter connected to the input of the first decrypt the torus, the outputs of which are connected to one input of the second key block, the third counter, the first output of which is connected to the second estimator, and the second output to the input of the second decoder of the torus connected to the character generator with other inputs of the second block of 3 keys, the outputs of which are connected to the vertical tires of the indicator panel, the output of the second counter is connected to the second input of the memory unit, a clock pulse generator connected to the inputs of the first register and the fourth counter, the first output of which is connected to the input of the Third counter , and the second output with the third input of the memory block, the fourth input of the memory block connected to the second output of the code converter, the fifth input to the first output of the input block, the input of which is connected to the output of the first counters, fifth and sixth counters connected in series and an element I, the inputs of which are connected to the outputs of the second, fourth, fifth and sixth counters, and the output to the corresponding input of the character generator, the sixth input of the memory block connected to the output of the sixth counter, and the seventh the input from the output of the fifth counter, the first input of which is connected to the second output of the input unit, and the second input to the third output of the converter. The drawing shows a block diagram of the proposed device. The device comprises a converter T of codes, connected to the first counter 2 addresses and block 3 of memory. The memory unit 3 through the character generator k, the first shift register 5, the second information register 6 and the first key block 7 are connected to horizontal buses of the gas-discharge display panel 8. The clock generator 9 is connected to the shift register 5 and the fourth counter of 10 lines that is connected to block 3 of memory. A third counter of 11 fragments is connected to a second decoder of 12 fragments and to a second counter 13 familiarity connected to the memory block 3 and the first decoder 1 familiarity. The decoders of the fragments 12 and familiarity 1 are connected to the inputs of the second key 15 keys connected to the vertical tires of the gas discharge indicator panel 8. The device also contains an input unit 16 connected to the memory unit 3 and to the fifth counter 17 familiarity connected to the sixth a counter of 18 lines, an AND 19 element connected to a generator of k characters, the outputs of counters of familiarity 17 and lines 18 are connected to block 3 of memory. The device works as follows. The first and second / counters of rows 10 and 18 and familiarity 13 and 17 are in the initial state, and the counters of address -2 and fragments 11 are reset. In block 3 of memory, codes of gaps are recorded, information in shift registers 5 and information 6 are not recorded. The control inputs of the generator C characters from the output of the decoder of 12 fragments are signaled on the first fragment. Since the codes of the counters of rows 10 and 18 and the familiarity counters and 17, respectively, coincide, the output of element AND 19 to the character generator k receives a signal strobe its outputs so that the outputs establish a code corresponding to the burning of all cells of the fragment. In accordance with the codes from the counters frag. cops 11 and familiarity 13, the exciting potential enters through fragments decoders 12 and familiarity 13 and the second key block 15 to the last bus of panel 8. Since the information register 6 and shift register 5 are not recorded, then through the first block 7 keys on The excitation potentials of the horizontal buses of the panel 8 do not arrive, so the last fragments are Not hot. The address inputs of the memory block 3 from the counters of lines 10 and sign 13 receive the address codes corresponding to the first familiarity of the first row. With the arrival of the next pulse from the 9 clock generator, the code of the fully burning fragment from the output of the alternator 4 is rewritten into shift register 5. The row counter 10 is set to a state whose address corresponds to the second row. The codes of the first and second row counters no longer coincide, and from the output of character generator 4, the strobe signal from element I 19 is removed. The first familiarity address codes are sent to memory block 3, since the memory block 3 contains codes of spaces, the code from its output transformed by character generator k into a fragment code in which not a single cell is lit. When the next pulse arrives from the clock generator 9, the shift code 5 in the shift register is shifted up by one line, code 9 3 is written in its place by spaces from the character generator output. The counter of 10 lines on memory block 3 receives the address code of the third line . The next pulse from generator 9 shifts the contents of shift register 5 one line up and writes the code of the first fragment of the third line. Thus, the shift register 5 is filled with the codes of the first fragments of the first familiarity of all rows. After filling in the pulse shift register 5 from the generator 9, the 10 line counter is reset, the codes from the shift register 5 are rewritten into the information register 6. The fragment counter 11 is set to the state whose code corresponds to the second fragment. From the second block of keys, the excitation potential is applied to the first vertical electrode of the panel 8. The horizontal busses through the first block 7 of keys, the exciting potential, goes only to the tires of the right row, since there are gaps in the other rows. The panel displays the first fragment in the first line. The codes of row counters and familiarity again coincide and the element AND 19 generates a signal, strobe generator 4, so that at its output is the code of a completely burning fragment. The next impulse from the 9-clock generator writes this code to the shift register, changing the state of the 10-row counter, as a result of which the signal from AND 19, which gates the outputs of the character-generator k, disappears. The first line of familiarity of the second line arrives at memory block 3, but since there is no information recording, a space code is output at the output of the memory bhük 3 of memory. This code is converted by the character generator k to a fragment code in which not a single cell is lit. With the arrival of the following pulses from the generator 9, the shift register 5 is filled with the codes of the second fragments of the first places of all lines. After filling the shift register 5, the counter 10 is. the rows are reset, with a signal from its output, the counter of 11 fragments is set to the state corresponding to the third fragment, and the codes from register 5 are shifted to the information register. Excitatory potentials are applied to all horizontal tires of the first row and to the second vertical Inu. The burned first fragment of the first line goes out, the second fraction is ignited. During the burning of the second step, the cycle of filling the shift register 5 with codes of the third fraction is repeated, but since in the memory block 3 only spaces are written, the code of the third fragment of the first line will be displayed when the next vertical bus is connected. The remaining fragments of the first familiarity of the first line are displayed similarly. When the fragment counter 11 is reset, the signal from its output switches the familiarity counter 13 to the state whose code corresponds to the second familiarity. Since the familiarity counters 17 and build 18 are set to zero, their codes do not coincide with the codes of row counters 10 and familiarity 13 until the latter is reset to the initial state. The signal gating the outputs of the character generator will not be available when switching the fragment counters 11 and familiarity 13, although the exciting potential is successively fed to the next vertical busbars of the panel 8, but since the memory block 3 recorded the blanks, the horizontal buses do not receive control signals, the second and subsequent familiarities of all the lines do not burn a single cell. The connection cycle of each column of fragments occurs with a frequency higher than the frequency range of the flicker; therefore, the first familiarity can be seen as constantly burning, the cells of this familiarity prepare the initial ionization level necessary for reliably burning the mark. When recording the device works as follows. The information is recorded into the device through the converter 1 of codes, at the address from familiarity counters 17 and lines 18. In the initial state, this is the address of the first familiarity of the first line. The marker burning in this place prepares a sufficient level of ionization. By the recording signal received through the code converter 1, the character code is recorded in memory block 3, and the familiarity counter 17 sets c to the state whose code corresponds to the second familiarity. Element And 19 gates the outputs of the character generator t during the formation of fragments of the second familiarity. On the horizontal display panel 8, the sign on the first line of the first row and the marker on the second light up. After recording the second character, counters 18 and 17 receive the address of the third familiarity on memory block 3. The outputs of character generator 4 are gated during the formation of fragments of the third familiarity of the first line. When writing character codes to the following familiar places, the marker advances along the line in front of the recorded characters, preparing the initial ionization level for reliable ignition. After the first row is filled, the familiarity counter 17 is reset, and the 18 row counter is set to a state whose code corresponds to the second row. Now, when the row counters 10 and familiarity 13. as well as the 11 fragments counter are reset, at the output of memory block 3, the character code written in the first familiarity of the first line is converted by the character generator to the code of the first fragment in accordance with the style. The next pulse from the 9-clock generator writes this code to shift register 5 and switches the counter 1 O lines to the state, the code of which corresponds to the second line, since now the codes of the row counters are the same, the element 19 And gates .. the output of the character generator and the input shift register 5 receives a fully burning fragment code. Since the information is not yet written to the remaining lines, the remaining pulses from generator 9 rewrite the fragment codes into the shift register, and which are not lit by any cells. When the 10 line counter is set to 8 the initial state, the codes from shift register 5 are rewritten to information register 6, the fragment counter is set to the state, the code of which corresponds to the second fragment, the exciting potential is applied to the first vertical bus. The signals of the first segment of the first line of the first line are sent to the horizontal busbars, the signals of the fully burning fragment are sent to the buses of the second line, and no control signals are received to the remaining horizontal buses. On the gas discharge display panel 8, fragments of the symbol in the first row and a marker fragment in the second are displayed. When the next vertical bus is connected,

the second fragment of the sign in the first line and the second fragment of the marker in the second. In the course of further recording, the advancement of the marker is carried out similarly. The marker can be used to edit the recorded information. Suppose that in block 3 of the memory information is recorded, one of the signs of which must be corrected. From the block

16 pulses are applied, successively changing the state of the counter

17, the marker is advanced along the first line. When counter 17 is overflowed, the address of the counter 18 lines changes and the marker moves along the second line. Since there are no recording pulses,

then the information in memory block 3 does not change. Combining the marker with the sign that needs to be corrected in this way, we obtain at the outputs of counters familiarity 17 and lines 18 the code of the address of this sign. Thereafter, a character code and a write command are supplied from the input unit 16 to the memory unit 3.

Counter 2 of the address remembers the code of the address of the line and familiarity, to which the record was made before editing. This code is set through the input block 16 in the familiarity counters 17 and lines 18 to continue recording after editing, and the marker is moved to the point where the recording continues. Cachet

18 lines has one more state than the first, for example, if the 10 line count has 10 states, then the 18 line count is 11 states. When the last character code is written to the memory block 3, the row counter 18 is set to the Fifth state. Since the row counter codes cannot now be matched, the image: the marker disappears. For the next use of the marker, the second counters are set to zero state of signals from the input block.

Claims (2)

1. USSR author's certificate №, cl. G 06 K 15/18, 197. 2. USSR author's certificate according to application no. 2582168, cl. G WK 15/1 1978 f PROTOTYPE.