SU824181A1 - Information input arrangement - Google Patents

Description

one

The invention relates to computing and can be used to enter information into digital computers and systems.

The closest in technical essence to the invention is a device for inputting information, comprising a keyboard, a register, a pulse generator, three one-shot, AND elements, OR elements (If (If) elements).

However, this device is different from the correctness of information input.

The purpose of the invention is to increase the reliability of the device.

The goal is achieved in that the device contains a decoder, the fourth element OR, the trigger, the signal element, the second And element and the third And element, the first input of which is connected to the output of the second And element and to the first input of the alarm element, the second input to the third one-vibrator and with the second input of the alarm element, the output of the third element And is the second output of the device and is connected to the first input of the trigger, the other input of which is connected to the output of the first one-vibrator, the output -

to the first input of the second element AND, the second input of which is connected to the output of the fourth element OR, the inputs of the fourth element OR are connected to the outputs of the decoder, the inputs of which are connected to the outputs of the register and the first outputs of the device.

The drawing shows the functional diagram of the device.

The device contains a block of 1 switching elements, a group of 2 elements AND, a register 3, a decipher 4, a fourth element 5 OR, a generator of 6 pulses, a first element 7 OR, a first single-oscillator 8, a trigger 9, a third one-vibrator 10, a second element 11 AND, an element 12 signaling, the third element 13 AND, the second one-shot 14, the second element 15 OR, the first element 16 AND, the third element 17 OR, the first information outputs 18 of the device and the second control output 19 of the device.

The device works as follows.

Claims (1)

The input characters of information are encoded by simultaneously turning on a certain combination of switching elements of the block 1 of switching elements. Before entering the next character, you must turn off all switching elements. When switching elements from the generator of 6 pulses are turned on, the signal through the corresponding elements AND of group 2 sets the bits of register 3 to the unit state, thereby writing down in the register the code dialed on the block of switching elements. At the same time, it is impossible to switch on all switching elements from the combination and, therefore, with the inclusion of the first switching element through the first element 7 OR, the first one-shot 8, which, with a pulse of 100–200 ms duration, covers this non-simultaneity, is started. At the moment of the end of the pulse, the third one-shot is started, which produces a sync pulse for the paired equipment, allowing reading the dialed code. This clock pulse passes through the third element 13 And to the second output 19 of the device only if the code recorded in the register satisfies the output control of the device. The output control of the device consists in checking with the help of the decimator 4 recorded in the code register for compliance with one of some permitted combination of switched on and off switching elements. If it does, then the signal “1 from the output of the decoder corresponding to this code is passed through the fourth element 5 OR to the second input of the second element 11 AND, the first input of which already has the signal“ 1 from the output of trigger 9, which was previously set by the pulse of the first one-shot. The signal "1" at the output of the second element I arrives at the first input of the third element And, thus, prepares the third element AND for passing a clock pulse from the output of the third one-oscillator to the second output of the device. The information is read into the interfaced hardware from the first outputs 18 of the device. If the operator either failed to dial a switching element, or two characters were typed in the interval 100–200 ms, the output of the signal decoder “1 will not occur, and therefore there will be no signal“ 1 other the output of the fourth element OR, at the output of the second element, AND, and at the first input of the third element I. The sync pulse to the second output of the device does not pass and incorrect information is not received to the associated equipment. The operator will know about this with the help of the alarm element 12, which is turned on at that moment. At its first input there is a signal “O, and on the second -“ 1. The device provides for blocking the dialing code at the time of entering information into the adjoining equipment, as well as using the second one-shot 14, generating a pulse of about 5 ms after the appearance of the signal "O at the output of the first OR element, for about 5 ms after turning off the last switching element. A second lock is provided to eliminate the bounce effect of the switching elements. The blocking signals “I are fed to the inputs of the third element 17 OR, from the inverse output of which the signal“ O is fed to the second inputs of the elements AND of the group. The code recorded in the register is erased by the signal "1 from the output of the first element 16 I, provided that at its second inverse input there is a signal" O (all switching elements are turned off) and at the first inverse input also the signal O from the output of the second element 15 OR ( impulses of the first and third one-shot were finished). The proposed device virtually eliminates the input of incorrect information in the associated equipment. The device for input of information containing a block of switching elements, a register, a group of elements AND, a pulse generator, the first, second and third one-oscillators, the first, second and third elements OR and the first element AND whose output is connected to the register setup input, the first inverse input - with the output of the second element OR, the second inverse input - with the inputs of the first and second single-shot and with the output of the first element OR, whose inputs are connected to the installation inputs of the register bits and to the outputs element And the groups, the first inputs of which are connected to the outputs of the switching elements block, the second inputs - with the inverse output of the third OR element, the first input of which is connected to the output of the second one-vibrator, the second input - to the output of the third one-vibrator and to the first input of the second element OR, the second input which is connected to the output of the first one-shot and to the input of the third one-shot, the inputs of the switching elements block are connected to the output of the pulse generator, characterized in that, in order to increase the reliability of the device, it The decoder, the fourth OR element, the trigger, the alarm element, the second AND element and the third AND element, the first input of which is connected to the output of the second And element and to the first input of the alarm element, the second input to the third one-vibrator and the second input of the alarm element, the output of the third element I is the second output of the device and is connected to the first input of the trigger, the second input of which is connected to the output of the first one-vibrator, the output to the first input of the second element I, the second input of which is connected to the output the fourth element OR, the inputs of the fourth element OR are connected to the outputs of the decoder, the inputs of which are connected to the outputs of the register and are the first outputs of the device. Sources of information taken into account during the examination 1. USSR author's certificate No. 612237, cl. G.06 F 3/04, 1976 (prototype).