SU834691A1 - Information input device - Google Patents

Description

The invention relates to computer technology and can be used in automated control systems operating in the time-sharing mode. ⁵

A device for controlling the transmission of information is known, consisting of a clock generator, a clock generator, microoperation triggers and information registers, ^{and a} ditch, the clock generator being connected to a clock generator and microoperation triggers that are connected to information registers [1 ^.

Closest to the proposal by technical nature is an information input device containing reHepaiop clock pulses, an information register, a shift generation unit, a code output unit, five AND elements, three OR elements, a counter and four triggers [2].

A disadvantage of the known devices is the complexity of the design.

The purpose of the invention is to simplify the device.

This goal is achieved by the fact that in a device containing a clock generator, a register, first, second, second, third and fourth elements and, OR element, counter, first and second triggers, and the first inputs of the first and second elements And are connected respectively with the outputs of the register, the second inputs - with the output of the clock generator, the third inputs - with the output of the first trigger, the first input of the register is connected to the first input of the device, the second input is connected to the input of the counter and to the output of the OR element, the first input of which is connected to the outputs to the second element And, the first input of the third element And is connected to the first input of the fourth element In the input of the second trigger, the output of the first element And is connected to the first input of the fourth element And, the output of the third element And is connected to the first output of the device, the output of the first element And is connected to the first input of the third element And, the first input of the first trigger is connected to the output of the counter, and 25 _; the second input is connected to the second input.

to the device, the first input of the second trigger is connected to the fourth input of the second element And and with the second input of the third element And, the output of the fourth element And is connected to the second input of the OR element, the second output of the second trigger is connected to the second input of the fourth element And) the output of the OR element is connected to the second output of the device.

The drawing shows a structural diagram of a device for entering information.

The device for inputting information contains a clock generator 1, information register 2, elements Y '' 3-6, element OR 7, counter 8, first and second triggers 9 and 10, inputs 11 and 12 and outputs 13 and 14 are also shown in the drawing devices.

The apparatus operates as follows formed _(Zoom.

Information by a serial code at input 11 is written to the register

2. After one clock cycle, input 12 receives a signal to start inputting information. With this signal, the first trigger 9 is set to a single state and from its output to the tritium, the inputs of the first and second elements 3 and 4 receive a resolving potential. At the first inputs of elements And 3 and 4, respectively, the unit and zero potentials from the output of register 2 are supplied. These potentials control the transmission of a single and zero bit of information. In the case of transmitting a single bit of information to the first input of the FR element, the enable potential comes from the output of register 2, and to the first input of And 4 the inhibit potential.

The clock pulse from the output of the generator 1 through the And 3 element goes to the first inputs of the third and fourth elements And 5 and 6 and the second trigger 10. The initial state of the trigger 10 is such that from its ¹ first exit to the second input of the And 5 element and the fourth input of And 4 element permissive, and inhibitory potentials are supplied to the second input of the And 6 element.

The pulse from the output of the And 3 element passes through the And 5 element to the output 13. At the same time, this pulse sets the trigger 10 at the first input to the opposite state, i.e. the inhibitory potential is issued to And 5 and the And 4 and .6- resolving potential.

The code of a single bit of information is transmitted in the device by two pulses: a pulse by output 13, and then by a pulse by output 14. The code of a zero bit of information is transmitted by one pulse by output 14, and this output is common for transmitting a code of zero and single bits of information.

The second pulse from the output of the clock generator through the element And goes to the inputs of the elements And 5 and the first input of the tribrach 10. Element 4 is closed at this time, prohibiting .1 and

potential from the output of the register 2. The pulse through the Ibi element OR element 7 goes to output 14, to the input ^{1 of the} counter 8 and the second input of the register 2. According to this pulse, the information in the register 2 is shifted by one bit.

The transmission of each single bit of information is carried out similarly.

When transmitting a zero bit of information (the resolving potential is fed to the first input of the AND 4 element), the pulse from the output of the clock generator 1 through the And 4 and OR 7 elements arrives ^! output 14 as a code of a zero bit of information and to the inputs of the counter 8 and. register 2 as a shift pulse. Information in register 2 is shifted one more bit.

Counter 8 counts the incoming shear pulses and upon receipt * of the last (n-th) gives an overflow signal to the second input of trigger 9, setting it to its original state. From the output of trigger 9, the inhibitory potential enters the inputs of the elements And 3 and 4, prohibiting the passage of pulses from the generator. 1.

This ends the transmission of one word of information. The remaining words are transmitted in a similar way.

Using the proposed device can reduce the amount of equipment used.

Claims (2)

1. USSR author's certificate 432484, cl. G 06 F 5/00, 1971. 1 2. USSR author's certificate, 2644542 / 18-24 cl. G 06 F 3/04, 1978 (prototype).  7