SU826375A1 - Device for reading-out and checking information - Google Patents

Description

The invention relates to an automatic machine and computer technology, in particular to devices for reading and controlling information, and can be used to write information in a computer memory. A device for reading and monitoring information is known, which contains a tablet, a synchronization unit, a code sensor, a register connected to the code converter. However, such a device has limited functionality. It is also known a device containing a tablet, a code sensor connected to a code converter, the outputs of which are connected to the information outputs of the device, the first inputs of the first register, the display unit and the synchronization unit, the first outputs of which are connected to the tablet, the second outputs to the synchronization inputs of the code converter , the third outputs to the first inputs of the generator of single pulses, the second inputs of which are connected to the first inputs of the external control, and the outputs to the control 1 outputs of the device and the second inputs of the first th register, the outputs of which are connected to the second inputs of the display unit I2l. However, this device also has limited functionality and does not allow control of the serial-parallel code. It is also known a device comprising a tablet, a code sensor, a synchronization unit connected to a pulse distributor, a display unit, registers, triggers, counters, OR elements, delays, and a decoder Sz}. Its disadvantage is the low reliability of the device. The purpose of the invention is to increase the reliability of the device. The goal is achieved by the fact that in a known device comprising a synchronization unit connected to a pulse generator, a plate and a pulse distributor, a code converter connected to the synchronization unit, a code sensor, an indication unit and the first and second registers whose inputs connected to the pulse generator, and the output of the first register is connected to the display unit, the first trigger, connected to the pulse distributor, the second counter connected to the first trigger, to the pulse distributor, About the second trigger connected to the pulse distributor and to the third trigger, with the decoder and with the OR element, the switch connected to the second register is entered into the third register, whose inputs are connected to the pulse distributor and to the third trigger connected to the first trigger and to the pulse distributor , and the output of the third register is connected to the switch, the fourth trigger, connected to the second counter, to the third register, to the first trigger and to the pulse distributor, unit compares w connected to the second register and counter, the fourth register, the inputs of which are connected to the first and third triggers, to the pulse distributor, to the comparison unit, to the switch and to the decoder, and the output is connected to the display unit, and the And element connected to the second and third triggers and to the element OR whose input is connected to the first trigger.

The drawing shows the block diagram of the device.

The device contains a tablet 1, block 2 synchronization, 3 codes of codes, 4 codes converter, pulse generator 5, first, second, third and fourth registers 6, 7, 8 and 9, pulse distributor 10, first and second counters li and 12, first , second, third, and fourth triggers 13, 14, 15, and 16, block 17. compare, decoder 18, switch 19, element AND 20, element OR 21, block and creations 22. Positions 23-27 denote the inputs of external signals incoming respectively, in nodes 5, 10, 11, 8, and 22, the positions 28-45 designate the links between the outputs and inputs of the device nodes, 46 and 47, with responsibly information and control outputs of the device. On the coordinate field of the tablet

1 can be overlaid with stencils with different 1P11M and coordinate grids. The coordinate grid, which is used for working with RAM, is divided into two zones: a byte reading zone and a mode setting zone. The coordinate grid intended for controlling successive codes contains horizontal lines according to the number of consecutive codes that enter the device 26 at the same time. The corresponding groups of bits of consecutive codes are indicated in the squares of horizontal lines.

The device works as follows.

At the input 24 of the device, the sync signals continuously trigger the distributor 10 pulses. At the outputs 31-36 of the distributor 10 pulses, six consecutive pulses are input to the synchronization inputs of counters 11 and 12, triggers 13 14 15 and 16, and registers 8 and 9.

To receive serial codes, a packet of pulses is applied to the input 25 of the device, affecting the counting input of the first counter 11. After receiving all the pulses, the code at the output 28 of the first counter 11 when the 1 O pulses distributor is working sets the trigger 13 to the O position, and then translates it to state 1. The signal generated at the inverse output, 29 of the first flip-flop 13, sets the 0 to flip-flops 15 and 16 of the register 9, and through the OR 21 element - the second counter 12.

Claims (3)

In the absence of at least one pulse at the input .25, the first counter 1 1 is set to the O position, however, the first trigger 13 remains at position 1 until the next batch of pulses arrives at the input 25, causing the second counter 12 to work. Counter 12 operates under the influence of actuating pulses generated at the outlet 34 of the distributor 10. The counter code 12 increases to. the moment of setting the second trigger 14, and then the third trigger 15 to position 1. At this point, the signals from the outputs of the trigger 14 and 15 through the elements AND 20 and OR 21 are set to O of the second counter 12. The second trigger 14 when the next start pulse arrives To the input 5 24 the distributor 10 pulses is set to the O position and after that cannot be set to the I position, since the signal from the output 43 of the trigger 15 acts on its input of the blocking 43. After the third trigger 15 is set to the position 1 from its output 44 signal on input One register 8, allowing the recording of signals of sequential codes at each operation of a distributor of 10 pulses. The register 8 is reset only by the signal generated at the output 3 of the distributor 10. Only one of all the successive codes entering the register 8 passes through the switch 19. The switching is performed using the coordinate code Y formed at the output 38 of the second register 7. Selected sequential code with the switch output goes to the fourth register 9, where it is converted into a parallel code using a decoder 18 connected to the outputs 39 of the lower bits of the second counter 12. However, writing the code to register 9 can only occur at the time when the codes on the outputs of the compare block 17 are equal, which generates an enable signal in the fourth register 9 only at those times when the code of the higher bits of the second counter 12 is compared with the coordinate code X at the output 37 of the register 7. The operation of the second counter 12 ends when a certain value is reached code, causing setting 1 of the fourth trigger 16. At the same time, the prohibition signal from its inverse output |; and 45 enters the counting input 45 of the second counter 12, as well as the input of the register 8 lock. The code recorded in register 9 enters the display unit 22. The operator's work in the control mode of successive codes arriving at input 24 of the device consists in reading the coordinate code of the corresponding square grid of the tablet 1, which indicates the number of bits of the sequential code written to the fourth register 9 for visas cial observation Introduction of new nodes and blocks, as well as new structural bonds 5 allows substantially enhance device reliability. Apparatus for reading and monitoring information, comprising a synchronization unit connected to a pulse generator, a tablet and a pulse distributor, a code converter connected to the synchronization unit, a code sensor, a display unit and with the first and second registers, inputs which are connected to the pulse generator, and the output of the first register is connected to the display unit, the first trigger connected to the pulse distributor, to the first counter connected to the pulse distributor, the second the counter connected to the first trigger, to the pulse distributor, to the second trigger connected to the pulse distributor and to the third trigger, to the decoder and to the OR element, the switch connected to the second register, characterized in that, in order to increase the reliability of the device, it. the third register, whose inputs are connected to the pulse distributor and to the third trigger connected to the first trigger and to the pulse distributor, and the output of the third register connected to the switch, the fourth trigger connected to the second counter, to the third register, to the first trigger and to the pulse distributor , the comparison unit, connected to the second register and the ohm counter, the fourth register, the inputs of which are connected to the first and third triggers, to the pulse distributor, to the comparison unit, to the switch and decrypt Oru, and the output is connected to the display unit, and the element And connected to the second and third triggers and the element SH, the input of which is connected to the first trigger. Sources of information taken into account during the examination 1. USSR author's certificate No. 386415, class 06 KI / 00, 1973. 2. USSR author's certificate number 516097, cl. G & C 7/00, 1976. 3. US patent No. 3975592, cl. 17818, published. 1976.