SU598257A1 - Double-channel device for selecting uniform signal trains - Google Patents

Description

This invention relates to radio engineering and can be used in automation and computer devices.

A device for selecting frequency signals is known, which contains electromechanical elements that require individual, special manufacturing 1J.

The closest technical solution is a two-channel device for selecting consistently homogeneous signals according to distinctive features, containing isolating elements for a two channels, a delay element, a caiale memory trigger and, respectively, two signal memory trigger, two inverse signal makers and two elements of coincidence in each channel, and in each of the channels the output of the first inverter shaper is connected directly and through the second atel inverse signal to first inputs of first and second coincidence respectively, output of the first flip-flop memory hallmarks of signals connected to the second inputs of the first and second members and through coincidence differentiator element - to the first input flip-flop memory channel state 2.

However, the known devices have a low accuracy of signal selection.

The aim of the invention is to increase the accuracy of selection.

For this, in the proposed device for selecting a sequence of homogeneous signals according to distinctive signs Q each of the channels, the output of the second element of the match through the first junction element is connected to the second input of the channel state memory trigger and through the input additional delay element to the first input of the corresponding the second trigger of the memory of the signals of distinctive features, the output of which through the input of the additional driver of the inverse signals of another channel is connected to the first input of the corresponding entered

15 of the single pulse generator, the output of the first coincidence element is connected through the second element of the distribution to the second inputs of the third modules trigger signals memory of the distinctive features of both channels, as well as to the second input of the additional corresponding inverse signal generator directly, and through sequentially connected tpgtiy the disconnect element and the delay element - to the third input of the memory trigger of the canal, the output of which is connected to the blocking inputs of the channel formers of one 25 (EFFECTIVE pulses, The corresponding inputs of the first and second shaper of the inverse signals and the first triggered memory of the signals of the excellent 1 и irishkop both of them are connected to each other.

In the drawing, the structural diagram of the device is 11) of a unit.

A two-channel device for selecting a sequence of homogeneous signals but distinctive features contains common to two channels (first and second) isolating elements I - 3, delay element 4, trigger 5 of channel memory and c (and two triggers 6, -7 memory signals of distinctive features, two imagers 8, 9 inverse signals and two elements of coincidence 10, 11 in each channel, and in each of the channels the output of the first generator 8 is connected) directly and through the second generator 9 to the first inputs of the first and second The first elements of the match are 10, 11, respectively, the output of the first trigger 6 is connected to the second inputs of the first and second elements I), II and through differentiating element 12 to the first input of the trigger 5, the output of the second match element I1 is connected to the second element trigger input 5, and through an additional delay element 13 - with the first input corresponding to the second trigger of the second trigger 7, the output of which is connected via an additional driver 14 to the inverse signals of another channel to the first input of the corresponding waveforms 15 single pulses, the output of the first element of coincidence 10 is connected through the second element of isolation 2 to the second inputs of the second flip-flops 7 of both channels, and also to the second input of the additional corresponding signal generator 14 HHBepcHfjx signals directly, and through series-connected third isolation switch 3 and delay element 4 - to the third input, trigger 5, the output of the latter is connected to the blocking inputs of the channel formers 5 single pulses, and .5 the corresponding inputs of the first and second formers 8, 9 and the first triggers 6 of both channels are interconnected. Inputs 16-20 are device inputs, and outputs 21-24 are his. exits.

The device works as follows.

Consider two groups of signals X (xi, xg, ... X rt) and Y (YI, Yn). Let each of these two groups have a distinguishing sign A and B, respectively, characteristic of a certain signal characteristic. These characteristics may be frequency, amplitude, code element, code combination, etc. The signals of the indicated groups and of an arbitrary sequence are fed to the inputs 16 and 19 with a frequency of f equal to the frequency of the clock pulses fed to the input 20.

The inputs 17 or 18 receive signals characterizing the presence of the distinctive sign L or B, respectively.

Let the input 17 at time 11 receives a signal characterizing the presence of a distinguisher; This is a sign of the signal of the X group, and leads the first trigger 6 of the first channel, p еди the unit state, and the first trigger 6 of the second channel and the trigger 5 of the state memory. channels - to the initial (“zero”) COCTOJ HHC

flpH this for processing information supplied to the inputs 6 and 9, includes the first channel (n. move 16).

At the subsequent time points, an arbitrary sequence of signals arrives at the input 16, for example,

 B ii i, t ,, 1b ... 1n

i i - “1 Xi Yi Y2 -Vj. ..dg „

i / / / / /

0 0 I I 0 0,

where ti, tz, 1z, t4, is, te .-- are the instants of time determined by the frequency of that sequence of clock pulses;

X |, xj, Хз, ... X ,, - signals of the group X, Yb Y Y3. Y.n signals of the Y group.

 For the first channel, the signals of group X can be characterized as “zero, and the signals of group Y - as“ single. (When processing signals on the second channel, with the entered attribute B, the signals of group X are characterized as "single, and the signals of group Y as" zero ", while the clock pulses should be considered as" zero level "pulses.

So, the input 17 receives a signal of the presence of a sign of the group X. With the arrival of the signal xi on

5, the input 16 at the output of the imaging unit 8 generates a "single pulse Xi, equal in duration to the clock (while maintaining the signal xi in the time interval ta -.- t, at the output of the imaging unit 8, a sequence of pulses xi is formed with a frequency f equal to the frequency of the clock pulses).

Impulse xi through the first element of coincidence 10 of the first channel and through element of isolation 2 leads the second triggers 7 of both channels to the "zero state", which fixes the similarity of the signal to group X, and through the element of coincidence 10 of the first channel and the third element of separation 3 with a certain the delay t, given by the delay element 4, brings the trigger 5 to the "zero state.

The state of the circuit is preserved at the moment of

0 time t. At time t4, input yi is received at input 16.

At the output of the imaging unit 9 of the first channel

The unit impulse yi is normalized. haacter corresponding to impulse x, through the element of coincidence and and the element of isolation i

5, the trigger 5 goes to the “single state” and releases the drivers 15 of both channels. Through the second coincidence element 11 and the additional delay element 13, a pulse YI at the output of the second flip-flop 7 of the first channel detects a signal that characterizes the signal yt to the group W. the second channel, and a single impulse of the Y signal to the group Y is generated at the output 23.

At time ts, the circuit retains its state.

At the moment of time te, the signal Xs arrives at the input 16, which is only through the isolation element 2

° captures the output of the second trigger 7 lane