SU1619405A1 - Device for compacting code batch form - Google Patents

Abstract

The invention relates to computing and data transmission, can be used to compact the t-code packet form (). The purpose of the invention is to expand the scope by compacting the t-code packet form (). This goal is achieved by introducing into the shift register the blocks of input logic, the block of output logic, (t + 1) input elements AND, the mode setting input and the corresponding links. The proposed device can be used to compact the t-code packet form in multichannel communication systems. 2 Il.

Description

The invention relates to computing and data transmission and can be used to compact a t-code packet form.

The purpose of the invention is to expand the scope due to the possibility

... 0 11 ... 1 00 ... O 11 ... 1 00 ... U H ... 1 00 ... O, (1)

compaction of the t-code packet form ().

Fig, 1 shows a block diagram of the device; figure 2 - block diagram of the input G output) logic.

The general form of the number A in the packet form of the t-code is:

V)

. 1 00 ... U H ... 1 00 ... O, (1)

05 WITH

t,

p1

where, n (n is the code depth); r t + 1j

m 1, n, K is the number of packets in the code. From this form it can be seen that it is characterized by the presence of packets from (t + 1) units, separated by at least one zero character. The essence of the device operation is based on the omission of t units of lower bits of packets and one zero when sequentially reading a code combination from a register.

mk

ra. This makes it possible to increase the capacity of the communication channel by compacting the code combination.

The device contains a group of flip-flops 1.1-l.n, a group of elements AND 2.1-2.P-4, a group of information inputs 3.1-Z.p for parallel input of information, input 4 for sequential recording of information, input 5 for resetting the device, input 6 for setting the setting mode J161

functions, clock input 7 of the device, a group of 8.1-S.n blocks of the input logic and block 9 of the output logic.

Figure 2 shows the block diagram of the input logic blocks of the trigger 1.1-l.n register. The input logic block contains a D-trigger 10, a two-input element And 11, a two-input element And 12, a three-input element OR 13, a synchronous input 14, inputs 15-18 of the block, an output 19, while the input 14 is connected to the synchronous input of the D-trigger 10, the input 16 and the output of the D-flip-flop 10 are connected to the inputs of the AND 11 logic element, the input 17 and the inverting output of the D-flip-flop 10 are connected to the inputs of the And 12 logic element, the input 18 and the outputs of the And 11 and 12 logic elements are connected to the inputs logical element OR 13, the output of logical element OR 13 is connected to the output of the input logic block. The block diagram of the output logic block coincides with the circuit of the input logic block, except for the fact that there is no input 18 for parallel recording of information.

The device operates as follows: The proposed device allows an increase in the capacity of the communication channel to a maximum of

at once0

In the triggers 1,1-l.n of the group records 30 () times, the t-code (let) the sequential input of information is able to be paralleled, and it is detected through the input 4 of the device or the code-conversion parallel

via inputs 3.1-3, p. For the t-co-delay of the D-flip-flop circuit, the presence of their (t + 1) ditch 10 packets and the I 12 elements, i.e. device units, separated in the general case, not estest has great speed

Reducing the t-code transmission time reduces the number of channels in a multi-channel communication system while reducing the same transmission time. 40 The device has the peculiarity that the reading of information takes place in the lower order. If reading to the other side is necessary, a register with a reverse shift is used.

less than one zero value. In this case, it is necessary to exclude from the package t the units of the least significant bits and one zero.

The t-code is entered by the lower-order bit ahead (respectively, the highest bit is located in trigger 1.1). Information is also counted by the younger ones. Decreasing the transfer time of the t-code reduces the number of channels in the multi-channel communication system while reducing the same transmission time. 40 The device has the peculiarity that the reading of information takes place in the first place ahead. If reading to the other side is necessary, a register with a reverse shift is used.

Nearly forward, after entering the code

combinations in triggers 1.1-l.n registers of input logic can be applied

to input 6 an impulse is applied, which in all such cases, when after

passes to the inputs of D-flip-flops 10 in some units worth a certain

blocks of input logic, the number of zeros.

Suppose, in bits 1.1,, 1.3 — the unit values of G (Fig. 1), when at the output of the logic element AND 2.1 there is a unit and a unit value recorded in the D-flip-flop 10, this flip-flop includes the information transmission channel 1.1- 1.5, turning off the triggers 1,2 ,, 1,3, 1. 4 from the work, i.e. they stop participating in the code shift.

In the general case, the code shift control is carried out as follows. The D-flip-flop 10 in the zero state causes the code to move in the usual way, through the channel: input 17 of the block, element AND 12, element OR 13, output 19 (Fig. 2), If the D-flip-flop 10 is in the single state, the code moves through the channel: input 16 of the block, element 11, element OR 13, output 19 (figure 2). The output logic block works in a similar way, and the information, which appeared on its output 19, is abbreviated, intended for further transmission.

So, due to the transition immediately through (t + 1) triggers, its length is reduced. After sequentially reading the information and resetting the flip-flops 1.1-l.n to the zero state, a second pulse is fed to the control input 6, which resets the D-flip-flops 10 blocks of the input and output logic to the zero state. The device is ready for the next code 0

Thus, the proposed device allows to increase the capacity of the communication channel with a maximum of

Reducing the t-code transmission time reduces the number of channels in a multi-channel communication system while reducing the same transmission time. The device has the peculiarity that the reading of information takes place in the lower order forwards. If reading to the other side is necessary, a register with a reverse shift is used.

Claims (1)

Invention Formula A device for compacting a t-code packet form containing a group of triggers and a group of input logic blocks, groups of information inputs of the device connected to the first inputs of the corresponding blocks of input logic, a serial information input of the device connected to the second input