SU708519A1 - Arrangement for measuring residual attenuation in duplex occupied telephone communication channels - Google Patents

Description

37085194

at the same time, the output of the second is that it is possible in case of interruption and

cut after the postparallely sodepannye four-dimensional um compensating for the signal {the return key, the second input of which is the connections and /: and at the mismatch of the gai generators

pg; n with the release apalizatorv pauses, and analy-4 (4) and 9 (9), the analyzer 11 (i)

the congestion of the presence of the measuring signal.

keys to the second input of the second key generates a signal that closes the keys to the first input of the third key, the second hectare 12 (12) and .3 (3), which, first

the input and output of which is connected correspondingly closes the circuit with compensation generator with the output of the generator measuring signal on the adder 8 (8), and the second signal and the second input of the first sum, interrupts the flow of the measuring signal to the communication channel 5 (S) On the reverse, the schematic diagram shows the direction of transmission of the speech sielectrical circuit of the proposed device, causing at its output the appearance of an uncompensated signal from the generator

Device on each terminal pun, 5th 9 (9) and analyzer operation

Who are the measuring channel of communication contains the pieces (c) and OP: thus the whole

subscribers 1 (1), respectively, of the measurement scheme. Feature of the work

and reverse communication channels, the first sum of the anashator 11 (11) the presence of a signal

The torus 2 (2), the key 3 (3), the generation of HF 4, the measuring frequency is that.

(4) measure the l-ns signal, the cannon is 20 at first, after it has triggered 5 (5), the analyzer is 6 (6) pauses, the key is locked until the fault disappears,

7 (7), second adder 8 (8), com- that can be provided by

sashok generator 9 (90, key 10 as keys 3 (h) and 12 (12)

(10), the analyzer 11 (11) the presence of the trigger-type key cascades, a,

measuring signal, key 12 (12) and second and second, analyzer triggering

Meter 13 (13) level. C (c) with support, providing

The device works as follows, the occurrence of the top generator 9 9) to 4 (4)

Claims (1)

1. For the number of years № 2530485 / 18-09, cl. H 04 B 3/48, 04.10.77, according to which a neiueirae was received on the extradition of the author's witness: the cres (prototype).