SU1515190A1 - Device for controlling information retrieval - Google Patents

Abstract

The invention relates to automation and computing, in particular, to devices for controlling information on the display screen. The purpose of the invention — to increase the information content of the device — is achieved by introducing register 4, decoder 5, second, third, and fourth groups of elements 17-17, 20-23, and 24-27, respectively, delay elements 29, 30, and 31, and the corresponding functional links. The invention allows adapting the functions of the information call keys to a specific user. 1 il.

Description

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The invention relates to automation and computing, in particular, to devices for controlling information on the display screen.

The purpose of the invention is to increase the information content of the device.

The drawing shows a block diagram of the proposed device.

The device contains the first memory block 1, the second memory block 2, the first 3 and second 4 registers, the decoder 5, the block of elements OR 6, the group of elements OR 7-9 triggers 10-12, the first group of elements AND 13-16, the second the group of elements And 17-19, the third group of elements And 20-23, the fourth group of elements And 24-27, the first 28, the second 29, the third 30 and the fourth 31 delay elements. Items 32-35 designate the information inputs of the device for connection to information call keys. In addition, the device contains a control input 36, a synchronous input 37, an information output 38, control outputs 39-41 for connection to key backlight circuits.

The device works as follows.

Each user working with this device is assigned a corresponding keyboard field. This could be, for example, the entire field of the keyboard, with which either any part of it, or the right, left part, etc. would be used. Each of the mentioned operators has its own functional pattern, calculated

On the corresponding part of the keyboard floor, on which all the operator’s mnemonic characters are written. Before starting work, any user places his functional pattern on the keyboard field in specially equipped slots and on the numeric keypad located to the right of the keyboard floor, which comes from input 36 to the information input of register 4. Then the operator presses the Enter key, the signal from the output of which goes to input 37 and then to the synchronizing input of register 4, recording to it the stroke 36. This code is decrypted decoder 5, which at one of its outputs sets a high potential corresponding to the input code, and opens one of the elements

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And 17-19. Assume that this element is AND 19, then the pulse from input 37, the delayed element 31 at the time the code is written into register 4 and the decoder 5 is triggered through the open element AND 19, trigger 12 will be set to one, and the remaining triggers 10 and 11 will be reset to zero. A high potential from a single trigger output is given only to those AND elements that are connected to the device inputs connected to the keyboard floor keys assigned to this user. On the same keys from the output 41 of the device, the turn-on voltage of the LEDs is issued, and those keys that correspond to the functional pattern set by the operator will be highlighted.

Thus, a specific set of keys is selected on the keyboard field for the operator-user. Pressing any of the keys on the floor will generate a signal that goes to the inputs 32-35 of the device. Suppose that this signal is fed to input 34 and further to the inputs of elements 15, 21, and 25. However, only one element 15 will be open at the potential input, since it is supplied with a high potential from a single output of trigger 12. Pass through element 15, a pulse with a key pressed, enters the read input of the fixed cell of block 1, where the address of memory block 2 is sewn up, in which there is information to be displayed on the display screen. In addition, the pulse from the output of the AND 15 element, after passing the block of the OR 6 elements, is delayed by the delay element 28 by reading the contents of the fixed memory cell of the 1 block and fed to the synchronizing input of the register 3, writing the address code to it. The address code goes to the address input of memory block 2, to the read control input of which a pulse is output from the delay element 29 delaying the read pulse to the transient time in register 3. The contents of memory block 2 are output 38 and then to the display screen. After reading the data, the read pulse is delayed by the read time of the delay element 30, and, arriving at the Setup input in O register 3, sets it to its original state.

Thus, the use of the proposed device allows the adaptation of the functions defined for each of the keys to the operator-user, which increases the information content of the device.

Claims (1)

Invention Formula A device for controlling call information, containing the first and second memory blocks, the first register, the first delay element, the block of elements OR, the group of elements OR, triggers, the first group of elements AND, the first inputs of which are information inputs of the device, the second inputs of elements AND first the groups are connected to the outputs of the corresponding triggers, which are the control outputs of the device, - the inputs Set to O triggers are connected to the outputs of the corresponding elements OR groups, the outputs of the elements AND the first group of connections There are no addresses with the inputs of the first group of the first memory block and the inputs of the first group of an OR block whose output is connected to the input of the first delay element whose output is connected to the clock input of the first register whose information input is connected to the output of the first memory block, the output of the first register connected to the address input of the second memory block whose output is the information output of the device, about tl and 0 five 0 5 d 0 five In order to increase the information content of the device, it contains the second, third and fourth delay elements, the second, third and fourth groups of AND elements, the decoder, the second register, whose information input is the control input of the device, and the control input The second register is connected to the input of the fourth delay element and is the synchronous input of the device, the output of the second register is connected to the information input of the decoder, the outputs of which are connected to the first inputs of the elements AND of the second group, which are The ports of which are connected to the output of the fourth delay element, the outputs of the elements of the second group are connected to the inputs. Installation of 1 corresponding triggers, the first inputs of the elements of the third and fourth groups are connected to the corresponding information inputs of the device, the second inputs of the elements of the third and fourth groups are connected to the outputs of the corresponding the triggers, the outputs of the elements of the third and fourth groups are connected to the address inputs of the second and third groups of the first memory block and the inputs of the second and third groups of the block in OR, the output of the first delay element is connected to the input of the second delay element, the output of which is connected to the control input by reading the second memory block and the input of the third delay element whose output is connected to the input Setting to O of the first register, the outputs of elements AND of the second group are connected to the inputs corresponding elements OR groups.