SU1327085A2 - Information input device - Google Patents

Abstract

The invention relates to computing, to devices for manual, for example, using keys, input, and is intended to form alphanumeric codes and sequences of these codes with their further input into digital electronic computers and is Fi9. one

Description

additional to a. with. №669350. The purpose of the invention is to expand the scope of application by ensuring the formation of a sequence of codes. Two blocks 10 and 11 of permanent memory, two one-shot 15 and 16, code converter 12, register 9, second counter 13, second element 14 are entered. When pressed, the Invention relates to computing technology, more precisely to devices for manual, for example using keys, input, and is intended to form alphanumeric codes and sequences of these codes with their further entry into digital electronic computers (COMPUTERS) and is complementary to the author. St. No. 669350.

The purpose of the invention is to expand the scope of application by ensuring the possibility of forming a sequence of codes.

FIG. 1 shows a functional diagram of the proposed device j in FIG. 2 shows a code converter circuit. .

The device contains a pulse generator 1, the first counter 2, the decoder 3, multiplexer 4, trigger 5, first element 6 AND, delay element 7, switching element matrix 8, register 9, first 10 and second 11 permanent memory blocks, converter 12 codes , the output of the device, the second counter 13, the second element 14 AND, the first 15 and the second 16 single-oscillators, ele- gon 17 OR and the switch 18.

The device works as follows.

in a way. one

In the initial state, the clock pulses from the output of the generator 1 pulses through the element 6 And open through another input from the output of the trigger 5, arrive at the counter 2. Signals from the outputs of the counter 2 come from the address inputs of the multiplexer 4 and provide the picker element the matrix 8, depending on the state of the switch 18, is either entered the code of the pressed switching element or a sequence of codes constituting the word. The variability of addresses in the first block of 10 memory allows you to enter words of different languages. 2 Il.

processing by the last signals of interrogation of the matrix of 8 switching elements. The signal from the other output of the trigger 5 keeps the counter 13 in the reset state. The switched on switch 18 opens element 14 I and the signal r from the output of the first block of 10 permanent memory through the open element

14and prohibits the operation of the one-shot

15 and allows the operation of the counter 13 at its entrance to stop the account.

When you turn on one of the switching elements of the matrix 8 signal with

5 of the corresponding output of the decoder 3 is fed to the input of the specified matrix and then to the input of multiplexer 4, to whose address inputs are signals from the output of counter 2. From the output of multiplexer 4, the signal goes to the input of trigger 5, which closes element 6 and , prohibiting the arrival of clock pulses at counter 2. Finding at this point in counter 2, the code corresponds to the switched on element. The signal from the other output of the trigger 5 records this code in the register 9 and removes the reset from the counter 13, which starts counting the pulses F of the generator 1. The codes on the outputs of the counter 13 connected to the inputs of the first permanent memory unit 10 change counter with frequency f / 16. When 1 appears at the output of F / 16 of the counter 13, it changes the code on the address inputs of the first permanent memory unit 10 and starts the one-shot 16, the output

0 pulse which through the element 17 OR is fed to the control input trans

razovatel 12 codes. A code consisting of the switched-on switching element code supplied from the outputs of register 9 and the output code of the counter 13 is applied to the address inputs of the first block of permanent memory 10. With this code, the address of the first character of the word is written in the first permanent memory 10, A pulse at the write input of the converter of 12 codes is used to write a parallel character code from the second block 11 of the permanent memory to the converter of 12 codes, and a start bit is formed on its output, which It is a signal to start the transmission of a sequential code. According to the pulse, the converter of 12 codes, synchronized by the pulses of the generator 1, transmits in a sequential form the character code from the output to the computer. In the event of a failure and the occurrence of 1 at the output of F / 16 counter 13, i.e. with continuation of the account, the code on the address inputs of the first block 10 of the permanent memory is changed and the described operation is repeated, the code of the second .character word appears in the computer, and so on, i.e. the codes recorded in the second permanent memory unit 11 are automatically issued by overwriting with the counter 13 the addresses of the characters that make up the word recorded in the first unit 10 of the permanent memory. At the end of the word, at the output of the first block 10 of the permanent memory associated with the input of the element 14 I, a signal appears that closes the element 14 AND, the output signal of which at the same time stops the counting of the counter 13 at its input account stop. The output of pulses from the output of the one to the ibrator 16 to the input of the record of the converter 12 of codes is stopped, and from its output the issuance of character codes to the computer is stopped. This ensures a single issue of the word in the computer with a single switching on of the switching element. When the switching element is turned off, the trigger 5 is reset to its initial state through the delay element 7, which delays the signal by the time of the bounce in the switching element. The signals from the trigger outputs opens AND 6 and reset the counter 13, i.e. return the circuit to its original state.

The information recorded in the first constant memory block 10 by the output associated with the input of the element 14 determines the number, codes in the sequence, or the word length. The information about the character codes is recorded in the second block 11 of the permanent memory, the addresses of the character codes in the first block 10 of the permanent memory and ultimately determined by the user.

When the switch 18 is disconnected, the device generates a specific code corresponding to the switching element that is turned on. The switched off switch 18 closes element 14 I and the signal at its output prohibits the counter from counting 13 at its entrance to stop the account and enables the single-oscillator 15 to operate. When one of the switching elements is turned on, the signal from the output of trigger 5 closes element 6 AND and the counter 2 stops has been described. The code at the output of the counter 2, corresponding to the switched switching element, is written to the register 9 by a signal from another output of the trigger 5. The same signal starts the one-shot 15 pulse from which, through the RSII element 17, enters the recording input of the converter 12 codes, which records the character code From the second block 11 of the permanent memory into the converter 12 codes and a start-bit is formed at its output. According to the pulse, the code is transmitted from the output to the computer. The code at the inputs of the first block 10 of the permanent memory, consisting of the code of the switched switching element and of the output code of the counter 13, in this case zero, since the counter 13 does not produce the count, uniquely determines the address of the character code in the second block 11 constant memory

When the switching element is turned off, the circuit returns to its original state, i.e. The symbol code is issued to the computer only when the switching element is turned on.

When writing information in the second block 11 of the permanent memory, for example, on character codes according to the KOI-8 standard and in the address ROM, about the addresses of characters that make up the programming language, for example PASCAL, the proposed device allows you to enter in a computer, the words and operators of the PASCAL language are shown when the respective switching elements are turned on once, which expands the functionality of the proposed device.

Claims (1)

Invention Formula Device for entering information on the author. St. No. 669350, characterized in that, in order to expand the scope of application by providing the possibility of forming a sequence of codes, two fixed memory blocks, a register, a second counter, two one-oscillator, an OR element, a second AND element, a code converter, are entered into it , outputs per10 15 They are connected to the information inputs of the code converter, the output of the pulse generator is connected to the counting input of the second counter and the shift input of the code converter, the second trigger output is connected to the register recording input, the second input of the second counter, and the second counter outputs are connected to the second group of address inputs of the first block of permanent memory, the output of the lower bit of the second counter is connected to the input of the second one-shot, the outputs of the one-shot are connected to the inputs of the element Ш W, the output of which is connected to the input of the converter of the code converter, the control output of the first block of the permanent memory is connected to the first input of the second counter connected to the information element I, the second input is connected with the first input of the register, the outputs of which are connected to the first group of address inputs of the first block a fixed memory, the information outputs of which are connected to the inputs of the first block of the fixed memory, the outputs of the COVNIIPI Order 3389/44 Random polygons , Uzhgorod, st. Project, 4 Secondly, they are connected to the information inputs of the code converter, the output of the pulse generator is connected to the counting input of the second counter and the shift input of the code converter, the second trigger output is connected to the register recording input, the second single input reset input, and the second counter outputs are connected to the second a group of address inputs of the first block of permanent memory, the output of the lower bit of the second counter is connected to the input of the second one-shot, the outputs of the one-shot are connected to the inputs of the Ш W, the output of which is connected to the input of the converter of the code converter, the control output of the first block of the permanent memory is connected to the first input of the secondary This is the device mode selection input, the output of the second element I is connected to the stop input of the counter and the second one-vibration input, the output of the code converter is the information output of the device. Circulation 672 Subscription