SU481894A1 - Input device - Google Patents

Description

(54) DEVICE FOR INPUT OF INFORMATION

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The invention relates to the input of information into the computers from the user consoles.

Information input devices are known, including serially connected data transmission unit, first OR circuit, delay unit, resetting unit, register triggers, first and second coincidence circuits, user consoles, and calculator.

However, the known devices do not provide the ability to quickly assign and change the priorities of user consoles.

In order to increase the speed of the device, a priority block, a control block, a second OR circuit and a data analysis block connected to the triggers of registers and a priority block connected via a second OR circuit to the computer and control block are entered into it.

The drawing is a block diagram of the device

The proposed device for inputting information includes: computer 1, user consoles 2, data transfer unit 3, register 4 triggers 4 and register 7 triggers 6, first and second matching circuits 8 and 9, data analysis block 10, priority block 11, first 12 and the second 13 OR circuit, the control unit 14, the delay unit 15 and the reset unit 16.

The information input device operates as follows.

When accessing the calculator 1 of the console, 2 users issue a Request signal, which goes to the corresponding triggers 4 of register 5 and sets them to the state. The signals from the outputs of the triggers 4 of the register 5 enter the data analysis block 10 and, depending on the priority ranks of the user consoles 2, the data analysis unit 1O sets that trigger in register 7 to one, which corresponds to 2 users having the highest priority among consoles 2 users, currently requesting a vychmstel 1. When 1 cng condition coincides with the outputs of the flip-flops 4 registers 5

and the flip-flops 6 of the register 7, the corresponding second matching circuit 9 outputs a signal to the input of the data transmission unit 3. Then the information from the selected user console 2 goes through the data transfer unit 3 to the calculator 1. After the data transfer is completed, the data transfer unit 3 outputs a signal through the first circuit 12 OR the delay unit 15 and the first match circuit 8 sets the corresponding trigger 4 of the register 5 to the state O. At the same time, the signal from the 15 delay unit through the installation unit 16 brings the corresponding trigger 6 of register 7 to the O state. In this case, the user console 2 cycle to the calculator 1 is considered complete.

Next, the data analysis unit 10 again sets the trigger 6 of register 7 to the state corresponding to the user’s console 2, which has the highest priority among the consoles 2, which are currently requesting the calculator 1. The priority ranks of the consoles 2 users can

be promptly replaced by j of priority block 11 both by commands from calculator 1 and by control block 14. The control signals from the calculator 1 and from the control block 14 enter the priority block 11 via the second OR circuit 13.

Subject invention

A device for entering information, containing serially connected data transfer unit, first circuit OR delay unit, initial setting unit. state, register triggers, first and I second coincidence circuits, user consoles and calculator, characterized in that, in order to improve device performance, a priority block, control block, second OR circuit and data analysis block connected to register triggers are entered into it and a priority block connected via a second OR circuit to the computer and the control unit.