SU1723662A1 - Method of recording of changing signals and device to implement it - Google Patents

Abstract

The invention relates to a pulse technique and can be used to construct devices for recording incoming data. The purpose of the invention is to expand the scope and increase noise immunity. The device for registering changing signals contains an adder 1, a generator 2 with a varying following frequency, an element OR 3, a generator 4 of pulses, a block 5 of delay, a driver of 6 pulses, a recording block 7, an input bus 8 and an additional bus 9 of the input signal. Introducing adder 1 allows clocking of input signals not only by them, but also by more complex characteristic. The clocking control is performed using a signal supplied to the auxiliary bus 9 of the input signal. The separation in time of the acquisition time and the moment the noise appears at the input signal eliminates the effect of interference. 2 sec. f-ly, 1 ill. WITH S

Description

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The invention relates to a pulse technique and can be used to construct devices for recording incoming data.

The aim of the invention is to expand the field of application due to the additional modulation of the input signal by an additional external signal, i.e. providing an intermittent signal with an external signal, and improving noise immunity by eliminating registration at the time of occurrence of interference on the input bus.

The drawing shows a block diagram of a device for detecting changing signals.

The device for registering changing signals contains an adder 1, a generator 2 with a varying following frequency, an element OR 3, a generator 4 of pulses, a block 5 of delay, a driver of 6 pulses, a recording block 7, an input signal bus 8, an additional bus 9 of the input signal, the information input of the registering unit 7 is connected to the input signal bus 8, the first input of the adder 1 is connected to the input signal bus 8, the second input is connected to the additional input signal bus 9, and the output through the generator 2 with a variable tracking frequency - to the first input of the element OR 3, the input of which is connected to the output of the 4-pulse generator, and the output is connected to the control input of the generator 2 with a variable tracking frequency and through serially connected delay unit 5 and driver 6 of the pulses to the clock input of the recording unit 7.

The device works as follows.

The input signal is summed with an additional signal (for example, an interfering signal) arriving at the additional bus 9 of the input signal at adder 1, and is fed to the first input of generator 2 with a variable tracking frequency, the pulses at the output of which are summed at the element OR 3 with the generator 4 pulses pulses and are fed to its input, leading to the memorization of the last value of the input quantity. The delay unit 5 generates the required delay, and the driver 6 pulses clocks the recording unit 7 with its output signal. Under the action of the clock pulses

the recording unit 7 records the input signal.

The introduction of adder 1 allows the registration of input signals to be clocked not only by them (this is not always optimal), but by some more complex characteristic.

The clocking control is performed using an additional signal supplied to the additional bus 9 of the input signal.

The separation in time of the occurrence of interference on the input signal and the moment of recording allows increasing the noise immunity of the device.

Claims (2)

1. Method of registering changing signals, including the formation of the main clock sequence of a given frequency and ensuring registration at the time of arrival of a clock sequence, characterized in that, in order to expand the scope and increase noise immunity, an additional clock sequence is formed when the resultant signal obtained by summing input signal and additional formed, required level, summarize the main and additional clock e sequences and delay the resulting clock sequence. 2. A device for registering changing signals, comprising a recording unit, the information input of which is connected to the input signal bus, a pulse generator, characterized in that, in order to expand the field of application and increase the noise immunity, an additional input signal bus is inserted into it, a delay block generator, with varying frequency, pulse generator, element OR and the adder, the first input of which is connected to the input signal bus, the second input - to the additional input signal bus, and the output through the generator with a variable follow frequency - to the first input of the element OR, the second input of which is connected to the output of the pulse generator, and the output is connected to the control input of the generator with a varying tracking frequency and through the series-connected delay unit and pulse shaper - with clocking input of the recording unit.