SU1571571A1 - Device for information input - Google Patents

Abstract

The invention relates to computing and can be used in systems for manual entry of information. The aim of the invention is to expand the field of application of the device by increasing the amount of input information before entering it into a computer. The device for entering information contains a block of 6 switching elements, a pulse generator 1, a BAN 2 element, a counter 3, a decoder 4, a multiplexer 5, a first memory block 7, an EXCLUSIVE OR 8 element, and a trigger 13. Elements I 9 are introduced into the device, group 10 triggers, the second element BANGE 12 and the second memory block 11, designed to convert the positional code, as well as its modifications depending on the possible simultaneous operation of service switching elements, and issuing a code to the computer. In this case, the service switching elements enter the common block 6, which makes it possible to locate these elements anywhere in the block 6 without changing the connections. 2 Il.

Description

1

The invention relates to computing technology and can be used in systems for manual entry of information into computers.

The aim of the invention is to expand the field of application of the device by increasing the amount of input information.

FIG. 1 is a functional diagram of the device, and FIG. 2 - diagrams on the operation of the device.

The device for inputting information (Fig. 1) includes a pulse generator 1, a BAN 2S counter, a counter 38, a decoder 49 multiplexer 5, a switching unit 6 (CE), a first memory block 7, an EXCLUSIVE OR 8 element, AND 9 elements, a group 10 triggers, second memory block 11, second BANGE 12 and trigger 13. Pulse generator 1, counter 3, decoder 4, multiplexer 5, block 6 are designed to form, at the output of multiplexer 5, the signal and output of the counter 3 of the code at the time interrogation of the counter 3 of the decoder 4 and multiplexer 5 triggered K Block 6. Elements 9 and a group of 10 flip-flops are designed to generate a trigger signal for one or more service CIs, block 6- and issue it to modify the information code to the second group of inputs of block 11. Block 11 is designed to convert the position code from the counter output 3 in the type required for a computer, as well as its modification depending on the possible simultaneous actuation of one or more service CIs and issuing a code to the computer.

The device works as follows.

Pulses from the output of generator 1 are fed through the element BANNER 2 to the input of counter 3 (Fig. 2a), polling unit 6 using a decoder 4 and multiplexer 5 "The poll emitter signals (Fig. 26) appear at the output of multiplexer 5 and arrive at the first input of the EXCLUSIVE OR element. 8. At the second input of the EXCLUSIVE OR element 8, signals from the output of memory block 7 are received, storing information about the previous state of EC. In this case, the extraction of information from block 7 of the memory of

five

0

S

0

five

0

five

0

by feeding to its address inputs the code of the number of the polled CI coming from the output of counter 3. When the signal from the output of multiplexer 5 and memory block 7 coincides, the circuit does not change its state and the polling continues. If the signals from the output of multiplexer 5 and the signal at the output of memory block 7 do not match, the EXCLUSIVE OR 8 element is triggered. The output signal from the EXCLUSIVE OR element 8 (Fig. 2b) goes to the control input of the memory block 7 and sets it to the recording mode. At the same time, the current address from the output of the counter 3, which enters the input of the memory block 7, records information about the current state of the CE received from the output of the multiplexer 5 to the information input of the memory block 7. At the same time, at the current address coming from the output of counter 3 to the first group of inputs of memory block 11, to the second group of outputs of which information is found, it is necessary to enter into a computer corresponding to the selected CI of block 6, information about which is pressed from the output of group 10 of the trigger On the second group of inputs of the memory block 11 in the first group of outputs of the block 11, the signal (c2g2d) appears only at the time of polling the corresponding service CE of block 6 regardless of the signal at the inputs of the second group, and at each output the signal It is only at the time of polling of the service KE unit 6 corresponding to this output, at the third output the signal appears during the polling of any service KE unit 6 (Fig. 2d).

The device works in two modes,

If the service CE of block 6 (Fig. 2, O) triggered, the signal about the change in the state of the 7 ° memory cell from the output of the EXCLUSIVE OR 8 element (Fig. 2b) is fed to the first input of one of the AND 9 elements and to the first input the BANNER element. The signal at the output of the AND 9 elements appears only at the output of that element AND, at the second input of which there is a signal from the output of the first group of outputs of the memory block 11 (FIG. 2d), respectively, to the selected service CE of block 6, the signal from the output of the elements 9 is fed to the synchronization input of the corresponding selected the trigger block 6 of the trigger group of trigger 10, the information input of which receives a signal from the output of multiplexer 5 (fig. 2b). The trigger is triggered, remember this state until it releases the trigger that triggered it, or before exposing the computer willingness to accept the following information if the release of the specified CE occurred earlier (Figure 2e).

When releasing the corresponding QE (Fig. 2z), as well as when it is triggered, a signal is generated at the output of the EXCLUSIVE OR 8 element, which also passes to the output of the corresponding element AND 9, however, the current value of the signal from the output of multiplexer 5 is copied to the corresponding trigger (Fig. 2 , 3), and the corresponding trigger of a group of 10 flip-flops is reset. Thus, at the output of a trigger of a group

10, the pulse duration is equal to or exceeds the response time of the corresponding service CE unit 6.

In the event that an inelorial CI of block 6 (Fig. 2.2) worked during its demand, none of the outputs of the first group of outputs of the block

11pami, as well as at the third output, the signal is not present, the pulse from the output of the EXCLUSIVE OR 8 element does not pass to the output of the corresponding AND element of group 9, but passes to the output of the BAN 12 element and to the trigger input of trigger 13, to the information input of which a signal arrives from the output of the multiplexer 5. If the signal from the output of the element BAN

When the trigger 13 arrives at the trigger input 13 at the moment when the corresponding information block 6 is triggered (Fig. 2.2), then the signal is present at the output of multiplexer 5;

At the same time, the signal from the output of the trigger 13 is fed to the second input of the element BANGE 2 and stops polling unit 6.

The computer receives the code from the output of memory block 11 and reports the readiness to receive the following code as a pulse at the input of the trigger setup 13.

If the signal from the output of the BANGE 12 element is received at the trigger input of trigger 13 at the time of release of the corresponding information block 6, then the output of multiplexer 5 does not signal, and the trigger 13 does not work and does not expose the program to interrupt the computer.

Thus, the device allows the conversion of a positional code into a machine code, for example, KOI-; not to cause an interruption of the computer program during the operation of the hard-hitch ECs; do not cause an interruption of the computer program during the release of the CE, which reduces the cost of computer time and memory of the computer. In addition, the functional capabilities of the device have been expanded due to the possibility of including in the CI of a service purpose, the ability to attach different values (code) to the same information CI depending on

5 from simultaneously working (triggered) KE service appointments.

Claims (1)

Invention Formula i 0 A device for entering information containing a pulse generator, the first element BAN, counter, decoder, multiplexer, block of switching elements, the first and second blocks 5 memory, the EXCLUSIVE OR element, the trigger, the output of which is connected to the first input of the BANNER element and is the device ready output, the output of the pulse generator is connected to 0 the second input of the element BANGE, the output of which is connected to the input of the counter, the outputs of the first group of which are connected to the inputs of the decoder, the outputs of the second group of the counter are connected to 5 address inputs of the multiplexer, and the outputs of the first and second groups of the counter are connected to the address inputs of the first memory block and the address inputs of the first group of the second memory block, the outputs of the decoder are connected to the inputs of the switching elements block whose outputs are connected to the information inputs of the multiplexer whose output connected to the first input of the EXCLUSIVE OR element and the information input of the first memory block, the output of which is connected to the second input of the EXCLUSIVE OR element, the output of which is connected to the input five control of the first memory block, the trigger reset input is the device installation input, characterized in that, in order to expand the application area of the device by increasing the amount of input information, the second BAN element, the AND elements, the group of triggers, whose outputs are connected to address inputs of the second corpus of the second memory block, the outputs of the first | group of which are connected to the first inputs of the corresponding elements I, the outputs of the second group of the second the memory block are information outputs of the device, the output of the second memory block is connected to the first input of the second BAN element, the output of which is connected to the trigger input of the trigger, the output of the EXCLUSIVE OR element is connected to the second input of the second BANNER element, the information input of the trigger and the second inputs of the AND elements The outputs of which are connected to the clock inputs of the corresponding group triggers, the information inputs of which are connected to the output of the multiplexer. FIG. 2