SU1762418A1 - Device for transmitting and receiving binary signals - Google Patents

Abstract

The invention relates to communication technology and can be used to create digital information transmission systems. The aim of the invention is to increase speed. The device contains on the transmitting side of digital signal source 1, clock source 2, block 3 matches, counting triggers 4 and 5, exclusive OR 6, matching block 7, and on receiving side matching block 8, filter 9, latch 10 transitions, block 11 coincidence, one-shot 12, triggers 13 and 14, digital information consumer 15, and sync consumer 16. The purpose of the invention is achieved by introducing a second counting trigger and an exclusive OR element on the transmitting side, and a second trigger on the receiving side, which eliminates the influence of the element base on the speed of the device. 2 Il.

Description

The invention relates to communication technology and can be used to create digital information transmission systems.

The aim of the invention is to increase speed.

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

The device contains on the transmitting side a digital signal source 1, a clock source 2, a block 3 of coincidence, a second and first counting triggers 4 and 5, an Exclusive OR 6 element, a matching block 7, and on the receiving side a matching block 8, a filter 9, a latch 10 transitions, block 11 matches, one-shot 12, second and first triggers 13 and 14, consumer 15 of digital information and consumer 16 clock.

The device for transmitting and receiving binary signals works as follows.

The digital signal (Fig. 2.1) of source 1 is fed to one of the inputs of block 3 of coincidence, performed on the NAND element. The clock signal (Fig.2.2) of the source 2 is fed through block 3 (Fig.2.3) to the input of the counting trigger 5 and to the input of the library trigger 4. The output signals of the counting trigger (Fig 2.4, 2.5) are fed to the inputs of the element 6 exclusive OR, at the output which produces a relative bi-pulse signal (Fig. 2.6). In the JTOM signal, transmission 1 is saved, and transmission O modifies the sequence of alternation of the polarities of the pulses at the next clock interval compared to the previous one,

The relative bi-pulse butt signal passed through the butt cable, the matching unit 8 and the filter 9, enters the

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latch 10 transitions. In the latter, the transitions between the levels are converted into a pulse sequence (Fig. 2.7), from which the sync signal is restored in the one-shot 12 (Fig. 2.8). To restore the bounds of the clock intervals directly from the transitions of the butt signal, the inverse signal of the one-shot 12 (figure 2.9) prohibits random pulses from the latch of 10 transitions, which allows obtaining a periodic sequence of pulses at the output of block 11 (figure 2.10).

The D-flip-flop 13 is synchronized with a set of impulses from the release of the 10-junction switch. The periodic component of the pulse sequence zeroes the D-flip-flop 13 on the trailing edge, because at this moment O comes to its D-input from the output of the one-shot 12. The random component switches the D-flip-flop 13 to 1. Thus, the information on the presence of a random the component is stored in the D-trigger 13 half period (Fig. 11.11). On the leading edge of a periodic sequence from the output of block 11 of coincidence, D-flip-flop 14 remembers the state of D-flip-flop 13 for the entire clock interval (Fig. 2-12), therefore, a digital junction signal is generated at its output, which goes to digital information receiver 15 . The consumer 16 clock signal receives the recovered signal from the direct output of one-shot 12 (FIG. 2-8).

Claims (1)

Invention Formula A device for transmitting and receiving binary signals containing a serially connected digital signal source and a coincidence unit, a clock source, a first counting trigger and a matching unit whose output is the output of the transmitting part of the device, and on the receiving side a serially connected matching unit whose input is the input of the receiving part of the device, filter, clamp transitions, a match block and a one-shot, the first output of which is connected to the second input of the match block, are connected in series to the first trigger and a consumer of digital information of the clock signal, the output of the coincidence unit is connected to the first input of the first trigger, and the second one-shot output is connected to the input of the sync consumer, characterized in that, in order to improve speed, the second counting trigger and the EXCLUSIVE OR element are entered on the transmitting side which is connected to the input of the matching unit, the output of the first counting trigger is connected to the second input of the EXCLUSIVE OR element, and the output of the clock source is connected to the input of the second of the second trigger and to the second input of the coincidence unit, the output of which is connected to the input of the first counting trigger, and on the receiving side, the second trigger, the output of which is connected to the second input of the first trigger, the output of the transition clamp, is connected to the second output of the single vibrator with the second input of the second trigger. 1 P P EP ABOUT FIG. 2 P P P.