SU1119000A1 - Information input device - Google Patents

Abstract

1. DEVICE FOR INPUT OF INFORMATION, containing group photoreceivers, group amplifiers, elements AND groups, photoreceiver, voltage detector, first AND element, first OR element, shaper and first trigger, group photoreceiver outputs through group amplifiers are connected to the first inputs of the AND group elements and to the inputs of the first element OR, the output of which is connected to the reset input of the first trigger, the output of the photodetector through the amplifier is connected to the input of the imaging device, the output of which is connected to the first input of the first alement. It is connected with a counting trigger input, inverting, the output of which is connected to the second input of the first element AND, characterized in that, in order to increase the reliability of the device by controlling the input information, a modulo-two control unit, a sync-signal control unit, a second trigger, the second OR element and the sync driver, the outputs of the amplifiers of the group are connected to the inputs of the control unit modulo two, the output of which is connected to the data input of the second trigger, the input "Reset which and the input" Reset control unit sync signals are input "Reset device, the output of the second trigger is connected to the first input of the second element OR, the output of which is connected to the first installation input of the clock generator, the second installation input of which is connected to the output of the first element AND, the first synchronization output of the clock signal generator is connected to the second inputs of the AND element groups, the second sync output - with the sync input of the second trigger and with the first installation input of the clock control unit, the second installation input of which is connected To the output of the first element OR, and the output to the second input of the second element OR.

Description

2. The apparatus of claim 1, wherein the sync driver includes third and fourth triggers, a clock, a counter, a first one-shot, a third OR element, and first to fourth decoders, the first input of the third OR element, and the input of the first single-oscillator are the first and second installation inputs of the imaging device, respectively, the outputs of the first odiovibrator and the third OR element are respectively the installation inputs in "1 and" O of the third trigger, the inverting output of which is connected to the input "Reset the counter, the counting input of which is connected to the output of the clock, and the outputs to the corresponding inputs of the first to fourth decoders, the outputs of the first and second decoders are connected respectively to the installation inputs in" 1 and "On the fourth trigger, the output of which is first and the output of the third decoder by the second synchronizing output of the imaging unit, the output of the fourth decoder is connected to the second input of the third element OR.

3. The device according to claim 1, characterized in that the clock control unit includes second and third one-shot, fifth and sixth triggers and the second element I, the installation input to the "About the fifth trigger" is the first installation input of the unit, the installation input to 1 fifth trigger is connected to the output of the second one-shot, the output of the fifth trigger is connected to the first input of the second element I, the second input of which is connected to the output of the second single-vibration, the input of which is combined with the input of the second single-vibration, is the second setting input b Loka, the output of the second element And is connected to the installation input to "1 of the sixth trigger, the installation input to" O and the output of which are the input "Reset and output of the block, respectively.

one

The invention relates to computing and can be used to enter information from a punched tape into a digital computer.

A device for inputting information is known, which contains informational photodetectors connected to the first inputs of amplifiers and a synchronization photodetector connected to the inputs of the synchronization amplifier and summing amplifier, the output of which is connected to the second inputs of amplifiers 1.,

The disadvantage of such a device is low reliability, since the device is not protected from re-reading in the start-stop input mode.

Closest to the invention is a device for entering information, adopted as a prototype and containing information photo detectors connected to amplifiers, the outputs of which are connected to the first inputs of the AND elements and the inputs of the OR element, a photodetector of the sync track signals, connected to the sync amplifier, the output of which is connected through the driver with the first input of the first additional element And, the second input of which is connected to the inverse output of the trigger, and the output of the first additional element And is connected to the account the trigger input and the second inputs of the AND elements, and the input of the zero setting of the trigger is connected to the output of the OR element.

A disadvantage of this device is the low reliability associated with read errors.

The purpose of the invention is to increase the reliability of the device by controlling the input information.

This goal is achieved by the fact that in a device for inputting information containing photodetectors of the group, amplifiers

groups, elements AND groups, photodetector, amplifier, first element AND, first element OR, shaper and first trigger, outputs of photodetectors of the group are connected to the first, inputs of AND elements of the group and to the inputs of the first element OR, the output of which is connected to the input reset the first trigger, the output of the photodetector through the amplifier is connected to the input of the imaging unit, the output of which is connected to the first input of the first element, And the output of which is connected to the counting input of the trigger, which inverts the output of which is connected to V To the input of the first element I, a control unit modulo two, a clock control unit, a second trigger, a second IL element, and a sync driver, the outputs of the group amplifiers are connected to the inputs of the control unit modulo two, the output of which is connected to the data input of the second trigger, the "Reset of which and input" input of the Reset of the clock control unit are the input of the "Reset device, output of the second

the trigger is connected to the first input of the second OR element, the output of which is connected to the first installation input of the sync driver, the second installation input of which is connected to the output of the first And element, the first sync output of the sync driver, is connected to the second inputs of the I group, the second sync output is synchronized to the second trigger and the first installation input of the sync control unit, the second installation input of which is connected to the output of the first OR element, and the output to the second input of the second element that OR.

In addition, the sync driver contains the third and fourth triggers, a clock generator, a counter, a first one-shot, a third OR element and first to fourth decoders, the first input of the third element OR, and the input of the first one-shot are the first and second setting inputs of the driver, respectively, the outputs the first one-shot and the third element OR are the respective inputs of the installation in the "1 and" About the third trigger, the inverting output of which is connected to the input "Reset counter, counting input which is connected to the output of the clock generator, and the outputs to the corresponding inputs of the first to fourth decoders, the outputs of the first and second decoders are connected respectively to the installation inputs in "1 and" On the fourth trigger, whose output is first, and the output of the third decoder is the second sync output of the driver, the output of the fourth decoder is connected to the second input of the third element OR.

At the same time, the sync control unit contains the second and third one-shot, fifth and sixth triggers and the second element I, the installation input to the “About the fifth trigger is the first installation input of the block, the installation input to the“ 1st fifth trigger, the output of the fifth trigger is connected to the first input of the second element, the second input of which is connected to the output of the second one-shot, the input of which is combined with the input of the second one-shot, is the second installation input of the block, the output of the second element There is a dinene with the setup input at "1 of the sixth trigger, the setup input at zero and the output of which are input" Reset and output of the block, respectively.

FIG. 1 shows a functional diagram of the device; in fig. 2 - functional pattern of the sync driver; in fig. 3 - timing diagrams explaining the principle of operation of the sync signal generator; in fig. 4 - functional diagram of the clock signal control unit;

in fig. 5 - timing diagrams explaining the principle of operation of the sync signal control unit.

On the figures marked photodetectors.

1 groups, amplifiers 2 groups, elements AND 3 groups, first element OR 4, photodetector 5, amplifier 6, shaping device 7, first element AND 8, first trigger 9, control unit 10 modulo two, second trigger 11, first indicator 12, second element

0 OR 13, second indicator 14, block 15 control of clock signals, driver 16 clock signals, first) 1Y one-shot 17, third trigger 18, counter 19, generator 20 clock pulses, decoders from the first but fourth 21-24, fourth trigger 25, third the element OR 26, the second and third one-shot 27 and 28, the fifth trigger 29, the second element And 30, the sixth trigger 31.

The device works as follows.

When passing in the readout position of the information and synchronizing holes of the punched tape, first amplifiers

The 2 groups and the amplifier 6 are in the locked state, and the trigger 9 is under the

5, the null potential from the output of the element OR 4. After the photoreceivers of the first group of the leading edge of the information punch are perceived, the nulling signal from the trigger 9 is removed. After perception

0 by the photoreceiver 5 of the front edge of the synchro-opening, the signal from it through the amplifier 6, the driver 7 is fed to the input of the element AND 8, since a second level is fed to the second input from the inverse output of the trigger 9, the signal recording the logical unit in the output of the element 8 comes from trigger 9. At the same time, the signal from the output of the And 8 element is fed to the second input of the clock signal generator 16, after which the first and second outputs of the Ford worlds 16 are formed, respectively, a clock pulse and a strobe signal from the 1st pulse quick passage of the information read. to the output of the elements and group 3.

From the first output shaper 16

5 sync signals are sent to the clock input of the trigger 11, which stores the signal from the output of the control unit 10 modulo 2. If the number of information signals is even, then at the output of the control unit modulo 2 a logical unit that is written to the trigger 11 and c its output goes to the indicator 12 and to the first input of the OR element 13. In addition, the control clock from the first generator 16 sync signals is fed to the first input of the clock control unit 15, and the second input of this block information from the output of the element OR 4. If there is a synchronization signal at the output of the synchronization control unit 15, the logic level is zero, and if at least one sync signal disappears, the output of the synchronization control unit 15 is the logical unit that goes to the indicator 14 and to the second input of the element OR 13. The signal from the output of the element OR 13 is a signal to stop the punched tape and at the same time it is fed to the first input of the shaper 16 clock pulses, prohibiting the formation of obrabatogo sync pulse, with the result that erroneous information on the output of elements And group 3 does not pass. After stopping the punched tape due to a failed re-entry or continuation of the input is possible only after a signal is issued, resetting. The shaper 16 clock signals (Fig. 2) works as follows. A sync signal is received at the input of the one-vibrator 17 (Fig. 3a) from the output of the element 8. At the output of the one-vibrator 17 a short pulse (Fig. 36) is fed to the input of the trigger 18, resulting in the inverse output of the trigger 18 a signal of the logical unit appears (Fig ZB), which permits the counting of the counter 19. Counter 19 counts the pulses coming from the generator output 20 clock pulses (FIG. 3g) to its counting input C, and the outputs of the counter 19 are connected to the inputs of the decoders 21-24. At the output of the decoder 23, an information control clock (Fig. 3d) is generated, and the pulses from the outputs of the decoder 21 (Fig. Ze) and the decoder 22 (Fig. ЗЖ) are fed to the inputs, installations in the unit and zero of the trigger 25, the output of which is formed, respectively a gating clock pulse (FIG. Зы) allowing the information to pass to the output of the elements 3. At the output of the decimator 24, a zeroing pulse is formed (Fig. 3k), which enters the first input of the element OR 26 and zeroes the trigger 18, i.e. the circuit is reset. At the second input of the OR element 26 from the output of the OR element 13 (Fig. 1), in the presence of a read error, a signal is received, which also flushes trigger 18 (Fig. 3L). The sync signal control unit 15, the functional diagram of which is shown in FIG. 4, works as follows. The information signal (Fig. 5a), from the output of the element OR 4, is fed to the input of the one-shot 27 and to the input of the one-shot 28, from the outputs of which the pulses shown respectively in FIG. 56 and 5c. From the output of the one-shot 27, a pulse arrives at a single input of the trigger 29, as a result of which a logical unit (Fig. 5d) appears at the output of the trigger 29, which arrives at the first input of the element 30. And if a sync pulse is received at the zeroing input of the trigger ( Fig. 5 (3) from the first output of the clock signal generator 16, then the trigger 29 is set to zero (Fig. 5d) and the signal coming from the output of the one-shot 28 does not pass through the element 30 to the single input of the trigger 31 (Fig. 5e). the case of the arrival of the information signal (Fig. 5a) and the absence of si A second signal (Fig. 5d) at the output of the trigger 31 appears a pulse, which writes a logical unit into it, which serves as a signal for the stopping and stopping of a punched tape (Fig. 5g). The proposed device for reading information in comparison with the known one as a result of inserting a sync signal generator, the control unit modulo 2, the control unit for synchronization signals, the second trigger with the corresponding connections, allows to increase the reliability of the input of information read from the punched tape into the digital computer, by controlling it modulo 2 and by synchronization. Modulo 2 control allows detecting the absence of one of the information signals if there is an odd-ness on the tape, and the clock control circuit allows detecting cases when there are information signals, but the sync signal is not counted. If any of these errors is detected, the punched tape stops, the input to the DVR is stopped and the reason for the failure is indicated.

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Claims (3)

1. DEVICE FOR INFORMATION INPUT, containing group photodetectors, group amplifiers, AND group elements, a photodetector, Extender, first AND element, first OR element, shaper and first trigger, group photodetector outputs through group amplifiers are connected to the first inputs of elements of the And group and with the inputs of the first OR element, the output of which is connected to the reset input of the first trigger, the output of the photodetector through an amplifier is connected to the input of the former, the output of which is connected to the first input of the first AND element, the output of which is connected n with a counter input of the trigger, which inverts. The output of which is connected to the second input of the first element And, characterized in that, in order to increase the reliability of the device by controlling the input information, a module two is introduced into it, a clock control unit, a second trigger, and a second OR element and a clock driver, the outputs of the amplifiers of the group are connected to the inputs of the control unit modulo two, the output of which is connected to the data input of the second trigger, the “Reset” input of which and the “Reset” input of the clock control unit s are the “Reset” input of the device, the output of the second trigger is connected to the first input of the second OR element, the output of which is connected to the first installation input of the clock driver, the second installation input of which is connected to the output of the first AND element, the first clock output of the clock driver is connected to the second inputs of the AND elements groups, the second sync output - with the sync input of the second trigger and with the first installation input of the clock control unit, the second installation input of which is connected to the output of the first of the OR, and the output - to the second input of the second OR. Figure 1 SU ₍₁₁ , 1119000 2. The device according to π. 1, characterized in that the shaper of the clock contains the third and fourth triggers, a clock, counter, first one-shot, the third OR element and the first to fourth decoders, the first input of the third OR and the input of the first one-shot are the first and second installation inputs of the shaper, respectively , the outputs of the first one-shot and the third element OR are respectively the inputs of the installation in "1" and "0" of the third trigger, the inverting output of which is connected to the input "Reset" of the counter, the counting input of which is connected to the output of the clock generator, and the outputs are connected to the corresponding inputs of the decoders from the first to the fourth, the outputs of the first and second decoders are connected respectively to the installation inputs in the “1” and “0” of the fourth trigger, the output of which is the first, and the output of the third decoder by the second synchro moves of the former, the output of the fourth decoder is connected to the second input of the third OR element. 3. The device according to π. 1, characterized in that the control unit of the clock contains the second and third single vibrators, the fifth and sixth triggers and the second element AND, the installation input at “0” of the fifth trigger is the first installation input of the unit, the installation input at “1” of the fifth trigger is connected to the output of the second one-shot, the output of the fifth trigger is connected to the first input of the second element And, the second input of which is connected to the output of the second one-shot, the input of which, combined with the input of the second one-shot, is the second installation input of the block, the output is second AND means coupled to the input for setting to "1" of the sixth flip-flop set input to "0" and the output of which is input the "Reset" and the output unit respectively.