SU932634A1 - Digital information transmission system - Google Patents

Description

(5A) DIGITAL INFORMATION TRANSFER SYSTEM

one

The invention relates to a technique of multichannel telecommunications and can be used in telephone networks.

A known digital information transmission system comprising terminal and node stations, each of which contains an analog-to-digital converter, a digital-to-analog converter, a control and communication signaling node, containing groups of individual signal transmitters, a transmission register, to the first output of which a group control signal transmitter and interaction, the node receiving control signals and interaction, containing groups of individual receivers of signals, the receive register, to the input otorrhea connected to the control signal receiver and reacting, and the transmission code converter, the first and second inputs connected respectively to yield

the analog-digital converter and the output of the group transmitter of control and interaction signals, as well as the converter of the reception code, the outputs of which are connected to the input of a digital-analog converter and the input of the group receiver of control and interaction signals, as well as the transmission regenerator and the reception regenerator connected to the linear

10, in the terminal stations, the transmission regenerator is connected to the output of the transmission code converter, and the reception regenerator is connected to the input of the receive code converter ClJ.

IS However, the known digital information transmission system has low bandwidth.

The purpose of the invention is to increase throughput.

20

This goal is achieved by the fact that in a digital information transmission system, there are terminal and node stations, each of which contains an analog-to-digital converter, a digital-to-analog converter, a control and interaction signaling node, containing groups of individual signal transmitters, the transmission register, to the first output of which a group transmitter of control and interaction signals is connected, a control and interaction signal reception unit containing groups of individual receivers of signals Alov, the receive register to the input of which the receiver of control and interaction signals is connected, as well as the transmitter of the transmission code, the first and second inputs of which are connected respectively to the output of the analog-to-digital converter and the output of the group transmitter of control and interaction signals, and the outputs of which are connected to the input of a digital-to-analogue converter and a group receiver of control and interaction signals, as well as a transmission regenerator and a reception regenerator, connected e to a linear path, where in the end stations the transmission regenerator is connected to the output of the transmission code converter, and the reception regenerator is connected to the input of the reception code converter, at the terminal and node stations in the control and interaction transmission nodes of the same name of the individual transmitter groups of signals connected between each other and connected to the corresponding outputs of the transmission register, and the outputs of the individual signal transmitters of each group are combined and connected to the corresponding inputs of the groups The first inputs of individual transmitters of signals of each group are combined and connected to the corresponding outputs of the receiver of control signals and interactions, and the second like inputs of groups of individual receivers of signals are interconnected and connected to the corresponding outputs of the reception register, and n additional transmit regenerators, n additional receive regenerators and orally connected channel separation unit, a switching unit and a channel combination unit, the outputs of the reception regenerator and additional reception regenerators and the output of the transmission code converter are connected to the corresponding inputs of the channel separation unit, and the outputs of the channel combination unit are connected respectively to the inputs of the transmission regenerator, additional transmission regenerators and input code converter receiving.

The drawing shows a structural electrical circuit of the proposed system.

The digital information transmission system includes terminal stations 1 and a junction station 2, each of which contains an analog-to-digital converter 3, a digital-to-analog converter C, a node 5 for transmitting control and interaction signals, consisting of a transmission register 6, a group transmitter 7 of control and interaction signals, a group individual transmitters 8-1-8-36 of signals, transmitter 9 of transmission code, transducer of receive code 10, node 11 for receiving control and interaction signals, consisting of reception register 12, group control receiver and interaction receiver 13, a group of individual receivers (i signals, transfer regenerator 15, reception regenerator 16, in addition, the node station contains n additional regenerators 16-11b-n transmission, n additional reception regenerators, channel separation unit 18, a switching unit 19 and a channel combining unit 20.

Digital information transmission system works as follows.

Claims (1)

At the terminal 1 and node 2 stations, when transmitting, the subsequent telephone signals in the analog-digital converters 3 are converted from analogue form to a pulse sequence, i.e. the analog signal is time-sampled, then the signal samples are quantized and encoded. The sequence of code pulses from the outputs of the analog-to-digital converters is fed to the 9 of the transmit code. In nodes 5, the knockout control and interaction signals in the group of individual transmitters 8-1-8-36 are converted into a pulse sequence and are sent to the group transmitter 7. In group transmitter 7, the signal is generated by superframe phasing and sample distribution. In the transmission code converter 9, the signals are recorded at the corresponding positions in the transmission cycles, i.e. a temporal spectrum of the digital stream is formed. At the end station 1, a group binary signal from the output of converter 9 of the transmission code is fed to a transmission regenerator 15, which converts the group binary signal to a convenient form for transmission via a linear path, and at a nodal station 2 directly to the channel separation unit 18. At the node station 2, the reception regenerator 16 restores the form of the transmitted group binary signal and divides the clock frequency, the channel separation unit 18 divides the 12 telephone channels into three groups of k channels in each group and connects to the switching unit 19, which provides switching of telephone channel groups in directions and, depending on consumption, in each direction, the scientific research institute changes the number of channels according to the principle 4, 8, 12, as a result, it is possible to provide two digital-transit links with other terminal stations which are carried out through the channel combining unit 20, the transfer regenerator 15 and n additional regenerators 16-1 to 1b-n transfer. Channel consolidation unit 20 makes it possible to organize A, 8, or 12 telephone channels in any direction. By separating, switching, and linking channels, the digital system provides the ability to provide direct digital communication between any terminal stations and between any hub station. If less than 12 telephone channels are switched in the direction, then in the channel combining unit, the stream is filled with a pulse and meanders or other information pulses with a kHz following frequency in order to allocate a clock frequency on the receiving side. When receiving, the receive code 10 converters restore the original static values. properties of a group binary signal, as well as separating the encoded telephone signals from the service information, for which they are converted inversely to those that have been done Transmitter x 9 code transfer. From the output of the reception code converters 10, the code combinations of the telephone channels are supplied to digital-to-analog converters, where decoding, demodulation and reconstruction of the transmitted telephone signals are performed in analog form. At nodes 11, the group receiver 13 allocates the MFC signal to trigger the reception register 12 and the information of all signal channels. In a group of individual receivers, 1 -1-1 -3b, the pulse sequences of signals are converted into DC signals. Thus, the proposed digital information transmission system generates a time spectrum in such a way that channel separation and digital transit communication with other stations is possible, which makes it possible to reduce the amount of switching and sealing equipment on the network as well as on the network. in each direction, depending on the change in the telephone load, change the number of channels according to the principle k, 8, 12, which increases the reliability and capacity of the communication network. A digital information transmission system comprising terminal and node stations, each of which contains an analog-to-digital converter, a digital-to-analog converter, a control and communication signaling node, containing groups of individual signal transmitters, a transmission register, to the first output of which a group control signal transmitter is connected. and an interaction, a control and interaction receiving unit containing groups of individual signal receivers, a receive register, the input of which is connected to the receiver of control and interaction signals, as well as the transmitter of the transmission code, the first and second inputs of which are connected respectively to the output of the analog-digital converter and the output of the group transmitter of control and interaction signals, as well as the converter of the reception code to the outputs of which are connected to the input of a D / A converter and an input of a group receiver of control and interaction signals, as well as a transmission regenerator and a reception regenerator connected to the linear the path, and in the terminal stations, the transmission regenerator is connected to the output of the transmission code converter, and the reception regenerator is connected to the input of the reception code converter, which, in order to increase the throughput, at the terminal and node stations in the signal transmission nodes control and interaction of the same inputs of groups of individual signal transmitters are interconnected and connected to the corresponding outputs of the transmission register, and the output of individual transmitters of signals of each group The first inputs of the individual receivers of signals of each group are combined and connected to the corresponding outputs of the receiver of the control and interaction signals, and the second like inputs of the groups of individual receivers of signals are connected between themselves and connected to the corresponding outputs of the receive register, and Vl additional regenerators ne redundants, C additional reception regenerators and serially connected channel separation unit, switching unit and channel combination unit, the outputs of the reception regenerator and additional reception regenerators and the output of the transmission code converter are connected to the corresponding inputs of the channel separation unit, and the outputs of the channel combination unit are connected respectively to the inputs transmission regenerator, additional transmission regenerators and the input of the reception code converter. Sources of information taken into account in the examination 1. PCM compaction equipment 12 M for rural communication. Ed. M.U. Shelf. M., Svy, 1976, p. 2335, 70-80 (prototype). jg .-- h IT