SU1043833A1 - Device for measuring telegraph signal distortions - Google Patents

Abstract

A DEVICE FOR MEASURING A LEGAL TELEGRAPH SIGNAL, containing a pulse generator, sequentially connected to a binary counter, a matching unit, an element AND. And a fixation unit of results, characterized in that, in order to reduce the idle time by eliminating an intermediate coa transform, a binary adder and the binary counter is made in the vice reversible counter, while the outputs of the reversible counter are connected to the inputs of the binary adder, the output of the matching unit is connected to another input down counter and to the first input of the AND, the second input kotorogosoedinen yield binary adder transfer, and the output of AND through block fixation results connected to the control unit, wherein on adjusting inputs binary adder filed code tolerance distortion (A telegraph signals. Stock 00 00 00

Description

The invention relates to communication technology, in particular to telegraphy.

A device for measuring telegraph signal distortion (TLG), a co-pulse generator, a counter, a matching unit, an AND-OR trigger element, a comparison unit, and a fixing unit of results ij is known.

However, this device has a low measurement accuracy.

Closest to the invention is a device for measuring distortion. no telegraph signal, social generator of pulses, successively connected to a binary counter, matching unit, AND element, fixation unit 2J.

However, the known device requires a large amount of equipment, and this object increases with increasing measurement accuracy, as a result of which the measurement time increases.

The purpose of the invention is to reduce the measurement time by eliminating the intermediate code conversion.

The goal is achieved by the fact that a known device for measuring telegraph signal distortions, containing a pulse generator, a matching unit, an And element, a fixation unit, is sequentially connected to a binary counter, and a binary counter is made in the form of a reversible counter, with In this case, the outputs of the reversible counter are connected to the inputs of the binary adder, the output of the matching unit is connected to another input of the reversible counter and to the first input of the And element, the second input of which union of a transfer output binary adder and the AND v1hod through fixing unit results connected to the control unit, wherein on adjusting the inputs of the binary adder access code filed distortion telegraph signals.

FIG. Figure 1 shows the structural electrical circuit of the proposed yciw solution; in fig. 2 - time diagrams of his work.

A device for measuring distortions | Telegra 4 signal contains a generator fop 1 pulses, a reversible counter 2, a matching block 3, a binary adder 4, an AND 5 element, a block 6 of fixing the results.

A device for measuring telegraph distortion works as follows.

At the time of arrival of the clock pulses (Fig. 2a), corresponding to the wiring speed and measurement accuracy, counter 2 is started.

The cycle of the counter 2 is determined by the duration of the elementary parcel, with the first half of the parcel the counter 2 counts in the forward direction, then reversed, and the second half of the parcel counts in the opposite direction.

The state code of counter 2 is fed to the inputs of the binary adder 4. The other inputs of the same adder from the device: control receive the binary code of the tolerance of telegraph distortion.

The reference measurement zone is formed when a transfer signal appears from the output of binary adder 4 (Fig. 2) at the input of the And 5 element.

The measured telegraph parcels arrive at the matching unit 3 (Fig. 25, e), which converts the incoming right impulses into a sequence of short pulses corresponding to the characteristic moments of the incoming substep (Fig. 22, f).

These pulses arrive at the first input of the element 5. And if there is a transfer signal at the other input of the element AND S., then it turns off and the signal fixation unit 6 receives a signal corresponding to the distortions that exceed the set measurement area (Fig 2b).

In block 6 of fixation of the results, the signal is fixed. From the output of block 6, results fixation, the signal is fed to the control unit.

The reduction of the measurement time in the proposed device occurs through a 3ia elimination of intermediate code conversion.

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Claims (1)

DEVICE FOR MEASURING DISTORTIONS OF A TELEGRAPH SIGNAL, comprising a pulse generator, connected in series with a binary counter, a matching unit, an And i element and a block for fixing results, which means that, in order to reduce the measurement time by eliminating the intermediate conversion of the code into it the binary adder is entered, and the binary counter is made into a vice reversible counter, while the outputs of the reverse counter are connected to the inputs of the binary adder, the output of the matching unit is connected to another input of the rever -intensity counter and to the first input of the AND, the second input of which is · connected to the output of the binary adder transfer, and output the AND results through fixing unit connected to the control unit, wherein on adjusting the inputs of the binary adder access code filed distortion telegraph signals. 1 1043833 2