SU983696A1 - Data input device - Google Patents

Description

(54) DEVICE FOR INPUT OF INFORMATION

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This invention relates to computing. technology and automatic control systems and is intended for the input of information.

A device for inputting information containing a keypad encoder, a register, a comparison block, zero code analysis blocks, a one-shot, a trigger, elements I. A device is provided for blocking the readout of the input information j in the event of an error being written to the fault exchange register 1.

The disadvantage of this device is its low speed, due to the fact that in case of failures, when writing to the exchange register, the device returns to its original state by pressing the special button EFFICIENT resetting, which takes the operator’s time.

The closest to the invention to the technical entity is a device for inputting information, comprising a keyboard connected to an encoder, the outputs of which are connected to the inputs of the encoder’s zero code analysis block, informational inputs of the exchange register and the first inputs of the comparison circuit, B% I which is connected to the first input of the first element And, the output of which is connected to the first input of the trigger, the first V1LCOD of which is connected to the first indicator and to the first input of the second element And, the second indicator connected to the output The third element And, the one-shot, the input of which is connected to the output of the fourth element And, and the output - to the first input of the exchange register, the second input of which is connected to the output of the OR element, the outputs are connected to the second inputs of the comparison circuit and the second inputs of the zero code analysis unit the exchange register, the output of which is connected to the second inputs of the AND elements, the inputs of which are. are connected to the output of the zero code analyzer unit of the encoder, the delay element whose output is connected to the first inputs of the third and fourth AND elements, and the input to the input of the OR element and to the second trigger output, the second input of which is not connected to the output of the zero analysis unit cipher code; 23. The disadvantage of this device is its low speed, due to the fact that in case of failures when writing information to the exchange register, the information input must be repeated by pressing the keys, and the device malfunctions can occur repeatedly and each time it is necessary to repeat the information input. until its unmistakable input takes place, all these manipulations take time, which limits the speed of the device as a whole. The aim of the invention is to increase the speed of the device for inputting information by automatically repeating the recording of information in the exchange register in case of failures. The goal is achieved in that the device containing the indicator has a keyboard, the output of which is connected to the input of the encoder, the output of which is connected to the first register input, to the input of the encoder zero code analyzer unit, and to the first input of the comparison circuit, the second input of which is connected to the output register and is the first device of the device, the second input of the register and the output of the element OR through the delay element connected to the first input of the first element AND and the first input of the second element AND, the output of which is connected to the first input of the first the second trigger, the second input of which is the input of the device, the output of the first trigger is the second output of the device, the single pulse generator and the second trigger are entered, the input of the single pulse generator is connected to the output of the encoder zero code analyzer, the output of the single pulse generator is connected with the first input of the OR element and with the first input the second trigger, the output of which is connected to the indicator, the second input of the second trigger is connected to the second input of the first trigger, the second input of the OR element is connected to the output of the first element And, the second inputs of the first and second elements And. are connected to the output of the comparison circuit.

FIG. 1 shows a functional diagram of an information input device; “And FIG. 2 - functional diagram of the zero code analysis block; Fig, 3 - scheme

55 A single pulse from the output of the imaging unit 6 passes through the element OR 7 and arrives at the synchronizing input of the register 3. In this case, information, I have a comparison; in fig. 4 - single pulse shaper. The device comprises a keyboard 1, an encoder 2, a register 3, a zero code analysis block 4, a comparison circuit 5, a single pulse shaper 6, an OR 7 element, a delay element 8, the first element AND 9, the second element AND 10, the first trigger 11, the second trigger 12, indicator 13. The zero code analysis unit 4 (FIG. 2) is intended to generate a control signal when pressing the switching elements of the keyboard 1 and may consist, for example, of a series-connected AND-HE element 14 and a circuit 15 for eliminating contact bounce. The comparison circuit 5 (FIG. 3) is intended for comparing codes from the outputs of the encoder 2 and register 3 and may consist, for example, of series-connected EXCLUSIVE elements and an OR-NOT element 17. The single pulse generator 6 (FIG. 4) is intended to form a short single pulse on the control signal from the output of the zero code analysis unit 4 and may consist, for example, of the second delay element 18 and the third element 19. The device works as follows. In the initial state, all the switching elements of the keyboard 1 are open. The output of block 4 of the zero code analysis is a logical O signal. The first trigger 11 is in the reset state, the second trigger 12 is in the cocked state, while the indicator 13 is on at the operator’s console, which permits information input. When one of the switching elements of the keyboard 1 is closed, the signals corresponding to the key of the pressed element appear at the outputs of the encoder 2. At the output of the zero code analysis unit 4, a logical 1 signal is set, according to which a single pulse is formed at the output of the imaging unit 6, which sets the second trigger 12 to the zero state. The indicator 13 at the same time goes out, which indicates the beginning of the operation of the device. 59836 conductor outputs on the encoder 2 is written to register 3 ,. After a certain period of time, determined by the delay time on element 8, a single impulse: arrives at the second inputs of the first and second elements And 9 and 10. Interrogation of the comparison circuit 5 is performed. It takes some time to complete the transients when writing information to the register 3, which is also taken into account by the delay of the polling pulse on the delay element 8. If at the time of arrival of the interrogating pulse to the second inputs of the first and second elements AND 9 and 10 codes on the signals of the cipher 2 and register 3 are the same, then the output of the comparison circuit 5 contains a logical 1 signal, which allows the interrogating pulse to pass through the second element 10 the first input of the first trigger 11, which in this case is translated into a single state. After the information retrieval is completed, the device receives a Reset signal, by which the first trigger 25 11 is reset and the second trigger 12 is activated, and the permission for information retrieval is removed and the indicator 13 lights up on the operator console, which indicates the completion of the information input process. If the codes at the outputs of the encoder 2 and register 3 "e coincide, the output of the comparison circuit 5 is a logical O signal. In this case, the interrogating pulse passes to the output of the first element AND 9 and then passes through the element OR 7, again goes to sync - the lowering input of register 3. The recording of information in register 3 is repeated. After some time, determined by the delay time on element 8, this impulse is also fed to the second inputs of the first and second elements AND 9 and 10. Again, the state of the comparison circuit 5 is interrogated. The device has a higher speed due to the automatic repetition of recording information in the exchange register in the event of fights. In this case, the operator does not spend time on assessing the situation (Input occurred or Failed while entering information) and in case of 66 failures that occurred - on the keypad with your input keys. Correction of incorrectly entered information occurs automatically and at high speed, limited only by the delay time on element 8, which in turn is determined by the speed of the element base of the device. The invention The device for inputting information, containing an indicator, a key, an output, is directly connected to the input of the transponder (the ator, the output of which is connected to the first input of the register, to the input of the zero code analyzer unit of the encoder, and to the first input of the comparison circuit, the second input of which is connected with the output of the register and is the first output of the device, the second input of the regEutra and the output of the element OR through the delay element connected to the first; the input of the first element I. and the first input of the second element AND, the output of which is connected to the first input of the first The second trigger, the second input of which is the input of the device, the output of the first trigger is the second output of the device, about the fact that, in order to increase the speed of the device, a single pulse shaper and a second trigger are entered into it the input of the single pulse generator connect to the output of the zero code analyzer unit of the encoder, the output of the single pulse generator is connected to the first input of the OR element with the first input of the second trigger whose output is connected to the indicator, the second input of the second trigger The gera is connected to the second input of the first trigger, the second input of the OR element is connected to the output of the first element AND, the second inputs of the first and second elements AND are connected to the output of the comparison circuit. Sources of information taken into account in the examination 1. USSR author's certificate number 415656, cl. G06F 3 / О2, 1971. 2. USSR author's certificate Na 711558, cl. GO6 F 3 / O2, 1977 (prototype).

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Claims (1)

Claim A device for entering information containing an indicator, a keyboard, the output of which is connected to the input of the encoder, the output of which is connected to the first input of the register, to the input of the analysis unit of the zero code of the encoder and to the first input of the comparison circuit, the second input of which is connected to the output of the register and is the first output of the device, the second input of the register and the output of the OR element through a delay element are connected to the first input of the first And element and to the first input of the second And element, the output of which ^; It is connected to the first input of the first trigger, the second input of which is the input of the device, the output of the first trigger is the second output of the device, characterized in that, in order to increase the speed of the device, a single pulse shaper and a second trigger are inserted into it, the input of the single pulse shaper is connected to the output of the block of analysis of the zero code of the encoder, the output of the generator of single pulses is connected to the first input of the OR element with the first input of the second, horn trigger, the output of which is connected to the indicator, the second input of the second trigger is connected to the second input of the first trigger, the second input of the OR element is connected to the output of the first element And, the second inputs of the first and second elements And are connected to the output of the comparison circuit.