SU1476492A1 - Data input unit - Google Patents

Abstract

The invention relates to the field of automation and computer technology and can be used to manually enter information into control or computer systems. The purpose of the invention is to expand the field of application of the device by providing the ability to edit information from an arbitrary keyboard. The device contains a keyboard 1, a display unit 2, an element OR 3, a demultiplexer 4, the first 5 and second 6 blocks of the buffer memory consisting of serially connected registers 7 and 13, the elements of comparison 9, the block of elements AND 10, the block of elements OR 11, key 12, separation elements 14, 15. When an error is detected, the operator switches the buffer storage units and enters the correct message into the second buffer storage unit 6. The erroneously typed information from the first buffer storage unit 5 is erased, after which the buffer storage blocks are switched again . 1 il.

Description

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The invention relates to automation and computing and can be used to organize manual entry of information into control or computing systems.

The purpose of the invention is to expand the field of application of the device by providing the ability to edit information from an arbitrary keyboard.

The drawing shows the functional diagram of the device.

The device comprises a keyboard 1, an indication unit 2, an OR element 3, a multiplexer 4, the first 5 and the second 6 blocks of the buffer memory, the registers 7 of the second block of the buffer memory connected in series, the compare unit 8 consisting of comparison elements 9 and the block elements And 10, a block of elements And 11, key 12, serially connected registers 13 of the first block of buffer memory and separation elements 14 and 15.

The device works as follows.

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erased, key 12 is closed, there is no information on board 2.

The operator enters an array of information, with an impact on the keys of the keyboard 1. At the information outputs of the keyboard 1, there appear k-bit code combinations of alphanumeric characters (ATS). The received first character is displayed in display unit 2, through the element OR 3 in the form of a single pulse arrives at the shift input of the RAM block 6 and through the closed key 12 enters the 15 shift input of the RAM block 5. The information is shifted by the leading edge of the incoming pulse. Since information

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in blocks 5 and 6 is absent, the state of registers 7 and 13 does not change. In addition, from the outputs of the keyboard 1, through the demultiplexer 4, information is fed to the first register 13 of block 5, where it is recorded in parallel code.

25 When the second ACS is received by the leading edge of the pulse through the element OR 3 and the closed key 12, the first ACS is rewritten into the second register 13, and through the demultiplexer 4 the second ACS, information is entered from the keyboard. If the operator has noticed a perfect mistake, he immediately starts correcting it by pressing the Error key on the keyboard1, and continues entering from the N preceding to the committed error of characters. The number N depends on the degree of correlation of the symbols of the message being transmitted and can range from one symbol to uncorrelated formalized messages to three symbols of the semantic text. This is followed by a continuous process of entering information until the next moment of error, after which the actions of the operator are repeated. After fixing the error, the device analyzes the post-information, repeating N previous symbols, finds the error that follows this group, and corrects it. The invention is applied in the information input console with high correlation properties when after making a noticeable error the operator repeats the three previous ones correctly typed characters and for motor actions after an error can automatically type two characters. In the initial state in blocks 5 and 6 of the RAM

in blocks 5 and 6 is absent, the state of registers 7 and 13 does not change. In addition, from the outputs of the keyboard 1, through the demultiplexer 4, information is fed to the first register 13 of block 5, where it is recorded in parallel code.

When the second ACS is received by the leading edge of the pulse through the OR element 3 and the closed key 12, the first ACS is rewritten into the second register 13, and through the demultiplexer 4 the second ACS is written into the first register 13. In display unit 2, two ACS are displayed. Thus, in block 5, six ACCs are recorded. When the seventh ACS is introduced, the first ACS through the elements OR

1 1 in a parallel code enters the output of the device and is erased in display unit 2. With the introduction of subsequent ACS, the operation of the device elements is repeated,

If the operator has made a noticeable error, he presses the Error key (not shown). At the same time, a signal comes from the second output of keyboard 1, which closes key 12 and switches the outputs of demultiplexer 4.

Suppose, after an erroneously entered character, the operator automatically entered two more characters. Therefore, the erroneously entered character is written in the second register 13. Then the operator enters three characters, the next ones before the error. When this shift information in block 5 does not occur, because the key 12 is open and the shift pulses in the block) 5 does not occur, because the key 12 is open and the shift pulses in block 5 do not arrive. Information entered

in block 6, in block 8, it is compared with the information stored in block 5. After recording the three characters that follow, before the error, the operator enters the corrected character and continues to enter the information. As soon as the three ADCs, the next ones before the error, are rewritten into registers 7 of block 6 and the comparators 9 of comparison block 8 give out | single signals that arrive at the elements AND 10 "The match occurs on the element 10. A single signal from the element I I0 goes to the input

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just have the first register 13, and erasing the information from it is done by pressing the Error key.

After entering the array of information, the operator presses the Space key six times. In this case, the information recorded in the RAM is fed to the output of the device. The operator then turns off the device.

Thus, the proposed device allows editing information from a random keyboard in a parallel code.

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resetting the sixth register 13 and clearing the operator's unrecorded information, through the diode 15 erases the information in the fifth register 13, through the diode 14 in the other registers of block 5, and also closes the key 12 and switches the outputs of the demultiplexer 4.

The next entered ACS is written to the first register 13, zero is written in register 7, and from the output of register 7 through the elements OR 11, the first of three repeated ACS enters the device's output. The following five ACSs are fed to the output of the device from block 6, in which zeros are then written, and then from

ka 5. Further, the operation of all the blocks and elements of the device is carried out as described.

If, after an error, the operator has entered one character (i.e., an erroneous character is written in the second register 13), then three repeated characters are written in registers 7 and 13. Consequently, “o, the match occurs on the element 10. In this case, the information is erased in first-to-fifth registers 13 and when dialing the next ATS the output of the information device comes from the sixth register 1 C. If immediately after the error the operator entered the three previous characters, then a match occurs on the element 10 and the information from the first fourth registers 13. Due to the diodes 14 and 15 and The information recorded in the fifth and sixth registers 13 is not erased. If, when determining the location of the error, it is enough to repeat two correctly typed ADCs, then registers 7 and 13, digital comparator 9, element 10 and diode 15 are excluded from the circuit. To implement an error correction algorithm, at which a correction occurs immediately after it is done,

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that, in order to expand the exchange of the device due to neither the possibility of editing from arbitrary to, it contains an OR element, a plexor, a key, elements of a cp block of OR elements and division elements on the diodes and after the connected registers second information outputs are cladinenes with information in the multiplexer, the inputs of the block and the inputs of the element OR of which is connected to the key input of the key input and the inputs of the second group, the error output of the keyboard is connected to the control input of the key and the national input of the first and second groups of the second dineny with information first registers soot rows but the first and second groups, cha connected to inputs Vo ice giste first group O cerned and all subsequent registration howling and second groups respectively connected to the inputs of the first swarm groups corresponding e

switches off the buffer memory blocks and enters the correct message into the second buffer memory block. Inaccurately, the typed information from the first block of buffer memory is erased. After that, the reverse switching of the buffer memory blocks occurs.

Claims (1)

Invention Formula A device for entering information containing a keyboard, a display unit, a block of elements AND, sequentially connected registers by the first group, five 0 five 0 five that, in order to expand the field of application of the device by providing the ability to edit information from an arbitrary keyboard, it contains an OR element, a demultiplexer, a key, comparison elements, a block of OR elements and diode separation elements and serially connected registers of the second group, information outputs of the keyboard connected to the information inputs of the demultiplexer, the inputs of the display unit and the inputs of the OR element, the output of which is connected to the information input of the key and the inputs of the register entry The second group of the keyboard error error output is connected to the first control input of the key and the first terminal input of the demultiplexer, the outputs of the first and second groups of which are connected to the information inputs of the first registers of the first and second groups respectively, the output of the key is connected to the inputs of the register of the first group, outputs the second and all subsequent registers of the first and second groups are connected respectively to the inputs of the first and second groups of the corresponding elements 514764926 comparison, the outputs of which are connected to the register of the first group, divided by the inputs of the block of elements And, pearlitele elements on the diodes including the output of which is connected to the inputs between the corresponding outputs reset the corresponding registers per-block elements And the outputs of the last group, the second control input registers of the first and second groups, the connection of the key and the second address input, respectively, with the inputs of the perdemultiplexer, the second and each, and the second group of the element block the next output of the AND-OR block, whose outputs are connected to the reset input of the corresponding device.