SU1529436A1 - Pulse pair selector - Google Patents

Abstract

The invention relates to a pulse technique and can be used in automatic devices for selecting combinations of pairs of pulses of equal durations with a fixed number of pulses between them from a sequence of pulses with a random front phase. The purpose of the invention is to enable the selection of pairs of pulses with a fixed number of pulses between them. The selector contains triggers 1 and 2, the elements And 3-6, latch 7 time intervals, shaper 8 front of the pulse, shapers 9-11 trailing edge of the pulse, the tire 15 reset, input bus 16, output bus 17. The goal is achieved as a result of the introduction of the counter 12 pulses, the decoder 13 zero, the element OR 14 and the formation of new functional connections. 2 Il.

Description

fig1

The invention relates to a pulse technique and can be used in automatic devices for the Selection of combinations of pairs of pulses of equal durations with a fixed number of pulses between them from a sequence of pulses with a random front phase.

The purpose of the invention is to provide the possibility of selecting pulse pairs with a fixed number and number of pulses between them.

Figure 1 shows the structural electrical circuit of the device; 2 shows timing diagrams for his work.

The device contains the first trigger 1, the R input of which is connected to the R input of the second trigger 2, the first 3 and the second 4 elements AND, the first inputs of which are combined, the third element AND 5. The first input of element 3 and 3 is connected to the first input of the fourth element And 6, and the output with the first input of the latch 7 time intervals, the second input of which is connected to the output of the imaging unit 8 of the leading edge of the pulse. The first input of the element 5 is connected to the S-BXO house of the trigger 1 and the output of the first backward edge driver 9, and the second CARE to the output of the second back of the front edge of the pulse. The R-input of the trigger 2 is connected to the output of the third generator 11 of the trailing edge of the pulse and the second input of the pulse counter 12 whose outputs are bitwise connected to the inputs of the decoder 13 zero. The input of the imaging unit 11 is connected to the output of the OR 14, the first input of which is connected to the reset bus 15, the input of the imaging unit 9 is connected to the input bus 16 and the first input of the And 3 element. The output of the And 5 element is connected to the output bus 17, The inverse output of the trigger 1 is connected to the second the input element And 3, and the direct output - with the second input element And 4, the output of which is connected to the first input of the counter 12, and the third input - to the inverse output of the trigger 2, the S-input of which is connected to the output of the decoder of the torus 13, and output - with the second input element And 6, the output of which is connected to the input m shaper 8 and the second input element 14 OR. Out

the latch 7 is connected to, the input of the shaper 10,

The device works as follows.

In advance, an impulse is supplied to the reset bus 15, which, through the element 1 14, and the back edge generator 11, sets the counter 12 and the triggers and the two to zero states. The first input pulse from the input sequence (FIG. 2 a) enters through the trigger 1 element 1 3 at the first input (record input) of the latch 7, which remembers its duration. After the end of the input pulse, the shaper 9 forms a pulse corresponding to the falling edge of the input signal (Fig. 2d), which enters the 5th input of the I trigger and switches it (Fig. 2b, c). The following input pulses are received through an open element with triggers 1 and 2, AND 4 pa. The first input of the counter 12 pulses that starts to account for the prom 1:; 4; refined pulses. After the pulse counter 12 counts a predetermined number of intermediate cons, for example, three, as shown in the VIG, 2a, decoder 13 entails a pulse (Lig.2d) that switches trigger 2 (Fig. 2e, g). At the same time, at the third input of the element 4, the deciding potential potential (Fig. 2e), the inverting output of the trigger 2 ceases to act, the resolving potential begins to flow to the second input of the element 6 (fi7, 2e, f), as a result of which the input sequence, following the specified number of intermediate pulses, passes through the element And b on the PIC. Shaper 8. The leading edge of the pulse. The signal corresponding to the leading edge of this pulse arrives at the second input of the latch 7, while recording the duration of the pulse. played Oig1Bodits (Fig. 2h) and is fed to the input of the imaging unit 10, from the output of which the signal corresponding to the falling edge of the reproduced pulse (Fig. 2i), is fed to the first input of the element And 5, At the same time, the signals of the imaging devices 9 and 11 are formed. 9 enters the second input of the element And 5, and at the same time acting on the signals at the inputs of the element 5, the latter produces a selection pulse (Fig. 2k), which indicates the presence of the desired combination of a pair of pulses equal to the duration with a fixed number of pulses owls between them.

Simultaneously, the signal of the imaging unit 11 (Fig. 2d) switches the triggers 1 and 2 and the pulse counter 12 to the initial states (Fig. 2b, as a result of which the device switches to the standby state by the next desired combination.

If the forward pulse is combined with 1 and is not injured by the duration of the first pulse of the combination, then the signals at the inputs of the And 5 element do not coincide in time, and the Selection signal is not generated.

Thus, the introduction of new elements and connections provides additional information from the information presented in the form of an array of pulse sequences.

Claims (1)

Invention Formula The selector of pairs of pulses containing the input bus, which is connected to the First inputs of the first and second elements I and through the first driver of the falling edge of the pulse, to the first input of the third element And, the second input of which through the second driver of the falling edge of the pulse , the first input of which is connected to the output of the first element And, the second input of which is soy), 5294366 dnen with the inverse output of the first trigger, the R-input of which is connected to the R-input of the second trigger, and pr -, my output - with the second input of the second element And, the second input of the latch time intervals connected to the output of the front of the pulse, and four The third element And, the third shaper of the pulse edge, the dump bus and the output bus, are distinguished so that, in order to enable the selection of pairs of pulses 15 with a fixed number of pulses between them, an OR element and a serially connected pulse counter and a zero decoder are entered into it, the decoder zero output being connected20 to the S input of the second trigger, the inverse output of which is connected to the third input of the second element I, whose output is connected to the first input of the pulse counter, the second 25 input of which is connected to the R-input of the first trigger and the output of the third shaper of the rear edge of the pulse, the input of which is connected to the output of the OR element, the first input 30 of which is connected to the reset bus, and the second input is connected to the input of the leading edge of the pulse and the output of the fourth element I, the first input of which is connected to the input bus and the second input is connected to the direct output of the second trigger, and the output of the First forming front of the front edge of the pulse is connected with the S-input of the first trigger, and the output of the third element And is connected to the output 35 40 by bus. but LJUUl 0 e d in JLJUUl P silt (rig 2 L P