SU612237A1 - Information input arrangement - Google Patents

Description

i

The invention relates to the field of information technology, and can be used by the operator to enter sign information into any electronic system with an input in binary code (electronic digital computers, communication channels, etc.). in particular, it is most expedient to use it in systems that require blind (i.e., not mainly a governing body) operator’s work, as well as in systems where the operator must move when entering character information, i.e. transfer the input device.

A device for entering information containing a keyboard is known.

The disadvantage of such a device is the large size, weight, inability to work without blindness.

The closest technical solution to the invention is a device for entering information, comprising a keyboard and a register, the output of which is connected to the output of the device.

The disadvantage of the device is a large amount of equipment, large device dimensions and weight.

The purpose of the invention is to simplify the device.

This is achieved in that the device contains a group of AND elements, the first OR element, whose inputs are connected to the installation inputs of the register bits, are connected to the outputs of the AND group elements, three single-oscillators, the second and third OR elements, the pulse generator, and the AND element whose output is connected to the input of the initial setup of the register, the first input to the output of the second element OR, and the second input to the inputs of the first and second odiovibrators and the output of the first element OR; the output of the first one-vibrator is connected to the input of the third one-channel ora and the first input of the second OR, the second input of which is connected to the output of the third one-shot, corresponding to the device and the first input of the third OR, the second input of which is connected to the output of the second one-shot, and output to the control inputs of the AND group, information the inputs of which are connected to the corresponding outputs of the keyboard, the signal input of which is connected to the output of the pulse generator.

Claims (1)

The drawing shows the functional diagram of the device. The device includes a keyboard 1, a generator of 2 pulses, a group of elements And 3, register 4, the first element OR 5 the second element OR 6, the third element OR 7, the first one-shot 8, the second one-shot 9, the third one-shot 10, the item 11. in a way. When the device is running, the characters are copied by simultaneously pressing a certain key combination. Before encoding the next character, you must release all the keys. A synchronous pulse determining the instant of reading information by an external technical system is generated with a delay (100–200 ms) with respect to the first keystroke. Thus, the simultaneous keystrokes are specified when encoding a character. The device allows you to work with a short key press, i.e. the keys do not need to be held down until the readout of information into the technical system is completed; it is enough to hit them with your fingers. When you press the key. keypads with a generator of 2 impulses are fed to the corresponding elements of group 3, from their output, a signal (logical) is fed to the first element OR 5 and to the installation inputs of register bits 4. Thus, the code typed on the keyboard is written to the register. From the output of the speaker, a signal is output to the device. If at least one key is pressed, the signal at the output of the first element OR 5 is logical 1; if all the keys are off, the logic is O. When you press the first key, the first key starts. 8. A one-shot vibrator cancels a pulse, the duration of which {100-200 ms determines the non-simultaneous dialing (keystroke). At the moment of the end of the pulse, the third one-shot 10 is started, and a synchronous pulse is generated. It is fed to the output of the device and the KScMetff is determined to read the character code from register 4 into the wide technical system. A syshronimpulse is supplied, additionally to the third element OR 7, a signal from its output (a logical 0 to scan the code change, recorded in register 4. This signal is sent to control the inputs of the AND elements of group 3. Locking is also performed when the last key is released A logical O appears on the output of the first element 5. The second odonovibrator 9 starts up. A pulse from its output of about 5 msec through the third element OR 7 oxidizes the AND elements of group 3 in a manner that eliminates the impact of the keyboard contact lights. Register 4 is erased if all clays are released (a logical zero at the output of the first element OR 5, the pulses of the first one-shot 8 and a synchro-pulse have expired. Erasing is done by the logical signal of the element 11). If the keys are sent (logical O, the output of the first element OR 5), the logical H at the output of the AND 11 element appears under the condition that the output of the second element OR b is logical O, i.e., the pulses of the one-shot 8 and 10 have ended. The device has a compact keyboard. In combination with a simple electronic circuit, which is easily implemented on serial chips, this provides, with the same alphabet of input characters, small dimensions and weight. Good overall weight characteristics make it possible to use this input device in the onboard systems of aircraft, in universal, saturated controls, operator consoles. Its application In such systems gives not only technical, but also economic effect. The device allows you to enter information blindly. In systems where the operator’s visual analyzer is loaded (for example, by observing a changing external environment), blind work on entering double sign information reduces the number of vision switches, thereby reducing the likelihood of missing an extreme situation and increasing the overall productivity of the operator. If the keyboard of the device is made structurally autonomously, then the operator can easily transfer it. If it is necessary to move in the course of work, then this allows an increase in labor productivity, since movements for inputting sign information are eliminated. Claim 1. An input device comprising a keyboard and a register, the output of which is connected to the output of the device, characterized in that, in order to simplify the device, it holds & a group of elements AND, the first element OR, whose inputs are connected to the installation inputs Dov register, connected to the output of the elements of AND groups, three odiovibrator, the second and third elements OR, a pulse generator and the element And, the output of which is connected to the input of the initial setup of the register, the first the input to the output of the second OR element, and the second input to the inputs of the first and second single vibrators and the output of the first OR element, the output of the first single vibrator is connected to the input of the third single vibrator and the first input of the second OR element, the second input of which is connected to the output of the third single vibrator; the device and the first input of the third element OR, the second input of which is connected to the output of the second one-vibrator, and the output to the control inputs of the AND elements of the group, the information inputs of the ksuor are connected to the corresponding There are keyboard outputs, the signal input of which is connected to the output of the pulse generator.