SU439799A1 - Input device - Google Patents

Description

one

The present invention relates to the field of computing.

In known devices, information is entered into the RAM by a command generated by fixed frequency pulses. The period of this frequency determines the duration of the time interval during which the pulses of the frequency modulated signal are fed to the accumulating counter. Since the fixed frequency and frequency of the signal are not synchronized, the possibility of loss of information is not excluded.

The modulating signal is determined by the frequency deviation of the frequency-modulated signal, to obtain which it is necessary to determine the exact value of the carrier frequency preceding the frequency of the signal. For short durations of the time interval, in order to determine the exact value of the carrier frequency, it is necessary to calculate the number of H1 pulses over a relatively long period of time, which, with the known input methods, requires a significant amount of RAM.

The proposed device is characterized in that in order to increase the accuracy of information input and increase speed, it contains a time counter connected to the control unit and a trigger, and a notional power unit connected to the playback unit, trigger, time counter and start unit.

Functional diagram of the proposed device shown in the drawing.

The device contains a playback unit 1, a trigger 2, a potential forming unit 3, a time counter, a control unit 5, a start unit 6, an accumulating counter 7 and

delay block 8.

The device works as follows.

The first pulse of a fixed frequency

/ F with playback unit 1 prepares

trigger 2 to pass subsequent pulses to counter 4 and starts control unit 5 which permits pulses with a signal frequency to enter accumulation counter 7.

Through a given number of neorodov / f

counter 7 issues a command that bans trigger 2 and control unit 5, and the pulses ff and f c do not pass through counters 4 and 7, respectively. At the same time, counter 4 outputs a detuning potential to

potential forming unit 3. The next pulse / f removes the prohibition from the control unit 5 and starts the potential shaping unit 3, which generates the permitting potential, and supplies it to the start unit 6.

The first impulse / s following the impulse / f triggers the start-up unit 6 and at the same time prohibits the arrival of successive impulses / s to the start-up unit 6. Information read from accumulating counter 7 enters the computer memory. At the same time, a read pulse triggers a delay block 8, which, after a selected delay time, generates a pulse that sets the accumulating counter 7 to the initial state.

Thus, the information about the carrier frequency is located in one cell of the digital memory of the digital computer. Then information is entered from accumulating counter 7 at the command of each successive pulse f, following pulse / f.

Subject invention

A device for inputting information comprising a playback unit connected

a trigger, a nusk unit and a control unit, which is connected to a pulse counter connected to a delay unit, characterized in that, in order to improve the accuracy of information input and increase speed,

it contains a time counter connected to the control unit and a trigger, and a potential shaping unit connected to the playback unit, a trigger, a time counter, and a start block.