Wave multiplexer and method and program of faulty section identification

FIELD: machine building.

SUBSTANCE: wave multiplexer (100) is connected to one or more fibre-optic lines systems and with one or more optical transceivers systems and located between fibre-optic lines and optical transceivers (21-23), to input and output optical signals. Device is equipped with first optical switches (12a-12c), which output input optical signal from fibre-optic line into optical transceiver, second optical switches (12d-12f), which output input optical signal from optical transceiver into fibre-optic line, and circular verification local optical circuit (13), which transmits by feedback channel and outputs input optical signal from optical transceiver into this optical transceiver.

EFFECT: technical result is enabling possibility of faulty section identification.

7 cl, 4 dwg

 



 

Same patents:

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to communication engineering and can be used in wireless communication systems. Disclosed is a misphasing estimation module for estimating misphasing between a first signal of a first data path and a second signal of a second data path in a coherent receiver. The misphasing estimation module comprises a phase detector and an integrator. The phase detector is configured to detect the phase of the first or second signal to obtain a signal phase. Further, the integrator is configured to integrate the obtained signal phase to provide the misphasing estimate.

EFFECT: high communication reliability.

9 cl, 25 dwg

Splitter module // 2556886

FIELD: radio engineering, communication.

SUBSTANCE: optical splitter, which is terminated with adapters, is placed in a single housing. The base is closed with a cover. The reusable, quick-detachable splitter is used on both four ports and eight ports.

EFFECT: shorter installation time when laying an optical cable.

4 dwg

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to automation and communication and can be used on railway transport to control operating processes thereof. The system comprises subsystems for control communication, station administrative communication, two-way fleet communication, train radio communication, basic telephone communication, haul and inter-station communication, informing passengers and workers on railway tracks, an on-board ring IP network connected through routers with station IP networks of railway stations, flag stations and road centralised traffic control centre and integrated telecommunication equipment, which includes telecommunication servers, each connected to the station IP network of one of the serviced stations. The software of each of the servers is configured to provide service in standard mode to subscribers of a group of stations and/or flag stations arranged in series on a section of the rail road, as well as subscribers of a neighbouring telecommunication server in case of breakdown.

EFFECT: improved reliability of communication equipment and providing all types of communication based on an integrated hardware-software platform, based on use of packet switching technology using mutually backed up server equipment.

3 cl, 1 dwg

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to communication engineering and can be used in a hybrid network for in-building wireless (IBW) applications. A hybrid cabling system for providing wireless coverage in a building provides a forward link path and a reverse link path, includes a forward link which includes at least one optical fibre for connecting a first signal generated at a radio frequency input unit with a radio frequency antenna node, and a reverse link which includes coaxial cable, wherein part of the reverse link includes radiating coaxial cable configured to receive a second signal transmitted by wireless terminal equipment in the building and transmit the second signal to the radio frequency input unit, where each link is located on a separate carrier.

EFFECT: high transmission channel throughput.

18 cl, 9 dwg

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to communication engineering and can be used in optical communication systems. The opto-isolator circuit includes an optocouple (303), configured to optically transmit a raw output signal, a conversion circuit (317) connected to the output of the optocouple and configured to convert the raw output signal into a given converted signal, and a control circuit (306) connected to the output of the optocouple. The control circuit (306) is configured to generate an autonomous control signal from the raw output signal after the raw output signal passes through the optocouple (303), wherein the autonomous control signal is generated only if the raw output signal exceeds a given conversion threshold, and to control the conversion circuit (317) and convert the raw output signal into a given converted signal if the autonomous control signal is generated by the control circuit (306) and output the raw output signal to an output port.

EFFECT: high transmission throughput.

19 cl, 5 dwg

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to communication engineering and can be used in optical links. This method is used for an OLT to allocate bandwidth to an optical network unit (ONU), wherein the method includes: estimating input traffic of the ONU according to information from the ONU (S302); setting an input traffic transition signal (S304), which is used to indicate a change in the input traffic of two adjacent dynamic bandwidth allocation DBA cycles of the ONU; and allocating the bandwidth to the ONU according to the input traffic of the ONU and the input traffic transition signal (S306).

EFFECT: providing reliable bandwidth allocation, acceptable transmission delay and reliable use of uplink bandwidth.

14 cl, 11 dwg

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to communication engineering and can be used in optical communication systems. A coded light source in an illumination system is activated using a remote control device. If light source identification is successful, said light source is sent a control message to at least partially turn off its light. The light input of the identified light source is therefore turned off, thereby reducing the probability of conflict of coded light from an already identified light source with identifiers contained in the coded light emitted by other light sources. When there is no more detectable coded light, the sensitivity of the remote control device can be raised until the coded light is detectable again. Additional light sources can then be identified and activated.

EFFECT: improved noise-immunity.

15 cl, 5 dwg

FIELD: physics.

SUBSTANCE: optoelectronic transmitter consists of a power source, a laser, a turned semitransparent reflecting mirror, a correcting lens, an electrical modulator, a small-size photodetector and an automatic switch. The optical output of the laser is connected through the turned semitransparent reflecting mirror to the optical input of the correcting lens. The optical output of the correcting lens is connected to the optical input of the small-size photodetector, having an output which is connected through the electrical modulator to the first input of the automatic switch. The automatic switch has a second input and an output, respectively connected to the output of the power source and the input of the laser.

EFFECT: reduced size and power consumption of the device.

1 dwg

FIELD: electrical engineering.

SUBSTANCE: this device comprises first and second current inputs (1) and (2), current output (3), first and second output transistors (4) and (5) with combined bases, third and fourth output transistors (6) and (7) of the conductivity type with combined bases, first reference current source (8), first current mirror (9) coupled with power supply bus (10), second current mirror (11) coupled with second said bus (12), extra current mirror (13) coupled with second power supply mirror (12), first and second extra voltage sources (14) and (15).

EFFECT: increased response.

5 dwg

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to communication engineering and can be used in optical transport network systems. Disclosed is a load cross-switching processing method for optical transport network (OTN) equipment, which includes a service unit and a cross-switching unit, wherein said service unit includes a first service subunit and a second service subunit. The method includes breaking down, by the first service subunit, data T1 displayed on T time intervals in N/2 lower data buses of the motherboard of the first service subunit, into two parts; breaking down, by a second service subunit, data T2 displayed on T time intervals in N/2 lower data buses of the motherboard of the second service subunit, into two parts; exchanging data and recombination thereof, performed by said first service subunit and said second subunit, and transmitting the recombined data to the cross-switching unit.

EFFECT: high transmission channel throughput.

10 cl, 5 dwg

FIELD: electrical communications; quantum radio engineering and optical communications.

SUBSTANCE: proposed transfer line that can be used, for instance, in fiber-optic, laser, atmospheric optical and other communication systems has sending section and receiving section; sending section has clock generator, E-code shaper, code word shaping unit, additional trains shaping unit, first and second optical signal shaping channels, and optical multiplexer connected through optical signal transfer medium to receiving section; the latter has optical matched filter, directional coupler, first and second optical signal processing channels, subtracter, video amplifier, automatic gain control, optimal filter, resolving unit, and clock frequency recovery unit.

EFFECT: enhanced noise immunity, extended length of transfer line.

7 cl, 12 dwg

FIELD: shaping and processing radio signals.

SUBSTANCE: in order to enhance identity of copy generation while retaining ability of controlling input radio signal replication process, proposed device is provided with newly introduced (N -1) fiber-optic four-terminal networks, each of them incorporating Y-type internal adding and separating fiber-optic directional couplers.

EFFECT: reduced consumption of optical fiber.

1 cl, 27 dwg

FIELD: quantum radio engineering; fiber-optic communication line equipment.

SUBSTANCE: proposed digital optical signal transmission line using complex signals of enhanced noise immunity has clock generator, E-code shaper, modulator, amplifier-modulator, laser generator, laser power stabilizer, two matching devices, optical-signal transfer medium, optical-signal selector, additional-train discriminating unit, dual-channel matched filter, video amplifier, automatic gain control, optimal filter, solver, and clock frequency recovering device.

EFFECT: enlarged functional capabilities and enhanced throughput capacity due to dispersion correction.

2 cl, 4 dwg

FIELD: systems for transferring discrete asynchronous information through fiber-optics or open optical channel; channel level of transfer system (sublevel of medium access control).

SUBSTANCE: transferred bits of information are converted into optical signals using the number of transferred bits of information. These signals are multiplexed in optical range by delays for defined time intervals and by changing wave-length, and grouped optical signal is forwarded to the transfer channel. On the receiving end of transfer channel the optical signal is demultiplexed, signal parts are delayed for defined time intervals and detect. Transferred bytes of information are put to output buffer register using synchronizing signal, which is transferred simultaneously with informational bits. Unlike known interfaces, the proposed interface does not have numerous coding and decoding, grouping of transferred messages into frames, etc. Due to these facts, useful information transfer speed is increased; noise immunity is improved, especially in impulse noise environment and outer mechanical and climate factors.

EFFECT: increased noise immunity in impulse noise environment.

3 cl, 5 dwg, 2 tbl

FIELD: optical communication equipment.

SUBSTANCE: module includes laser, laser driver, automatic power adjustment circuit, automatic temperature adjustment circuit, digital adjustment circuit and memory. In the memory data are stored, used for operative adjustment of optical transfer module, including at least parameters of optical transfer module and laser radiation optical power parameters, meant for reporting to higher level. Adjustment occurs by browsing a table of optical transfer module parameters, in accordance to expected output optical power, receipt of appropriate data of digital-analog converter channel and recording thereof to digital adjustment circuit, producing signals for adjusting appropriate parameters, and also for finding report to higher level about transferred power, to receive value of transferred power for report to higher level.

EFFECT: digital adjustment of module parameters.

3 cl, 13 dwg, 2 tbl

FIELD: components of protected fiber-optic data transfer lines; uncontrolled-area limited digital-data transceiving devices.

SUBSTANCE: in order to make it possible to use proposed device in protected fiber-optic transmission systems, it is provided with newly introduced series-connected digital-to-analog converter, matching device, and regulator, radiator control device monitoring input is connected to first output port of controller whose second output port is connected to input of digital-to-analog converter, matching device output is connected to control input of regulator whose output is connected to input of amplifier; output of the latter is connected to input of detector whose output is connected to input of analog-to-digital converter; regulator input is connected to optical receiving module output.

EFFECT: ability of dispensing with controller output signal regulation when switching-on the device.

1 cl, 4 dwg

FIELD: methods for transferring information via atmospheric optical communication lines, possible use during development and design of digital communication complexes using wireless information exchange systems.

SUBSTANCE: the technical effect is achieved due to efficient realization of circuitry of various communication line modifications, which make it possible to create various digital information transfer systems of optimal structure and area of application, and to transfer information through single-channel communication line with usage of broadband optical non-coherent non-polarized signals; to transfer information via multi-channel communication lines using broadband optical non-coherent non-polarized signals having similar radiation spectrum in all channels and spatial distribution of channels; to transfer information via multi-channel communication lines using broadband optical non-coherent non-polarized signals with usage of spatial division of channels and of spectral broadband combining of channels; to transfer information by creating a system of communication lines with spectral division on basis of broadband optical non-coherent non-polarized signals; to transfer information by creation a duplex communication line on basis of broadband optical non-coherent non-polarized signals; to transfer information due to creation of duplex communication lines on basis of broadband optical non-coherent non-polarized signals with spectral division based on directions; to transfer information by creating a system of duplex communication lines with spectral division on basis of broadband optical non-coherent non-polarized signals.

EFFECT: increased stability of communications and increased speed of information transfer under real conditions of movement of optical signal through communication lines.

2 cl, 10 dwg, 2 an

FIELD: optical systems, namely communication networks, possible use in synchronous fiber-optic communication networks, both existing and in development.

SUBSTANCE: in accordance to the invention, sets of lengths of optical cables of communication network are selected, breakdown of each of which disrupts all routes between corresponding communication network units and value of total structural reliability coefficient of which is less than allowed, and installed into system are spectral packing terminals, optical routing commutators, optical multi-port commutators, optical power indicators and control blocks in units of communication system, incidental to lengths of cable of communication line, which compose selected sets, with following switching of information traffic to spectral packing terminal in case of loss of optical power in one of optical fibers.

EFFECT: reduced material costs of building of communication network, while preserving its reliability.

2 cl, 7 dwg

FIELD: the invention refers to the field of optical communication particularly to laser atmosphere systems for transmission of information with reservation of transmitting channels.

SUBSTANCE: it is designed for increasing probability of guaranteed communication in complex meteorological conditions at simultaneous reduction of costs for creation and exploitation, and also on increasing ecological security of the system of optical communication. This result is achieved due to the fact that in the mode of wireless communication via an atmosphere optical line including transmission of information signal from a transmitting arrangement to a receiving arrangement via radio -or via an optical channel they at first execute transmission of the information signal from the transmitting arrangement to the receiving arrangement of communication over a laser optical channel and when the receiving information signal achieves the low threshold of intensity they switch on at least one transmitter of a broadband channel on which they continue transmission of the information signal on the corresponding receiver of the broadband radio channel, not switching off the transmitting and the receiving arrangements of the laser channel. At that in order that the receiving information channel attains the value of the threshold of intensity which is defined by given speed of transmission of information, they switch additional transmitters and receivers of the broadband radio channel.

EFFECT: increases probability of guaranteed communication in complex meteorological conditions.

3 cl, 3 dwg

FIELD: communications engineering, possible use during realization of relay broadband communications, in local high speed networks, for wireless communications of various life support systems within buildings, for concealed communications.

SUBSTANCE: in accordance to the invention, system, method and device use generation of two carrier oscillation-signals (or more than two carriers), modulation of carriers with information signal by changing their mutual frequency, phase or amplitude difference or a combination thereof, combination of carriers in form of their total in a radio-signal. Demodulation in receiving section includes extracting aforementioned differential signal of pulsations and first carrier from radio signal, used later on for precise adjustment of heterodyne signal.

EFFECT: creation of system and method for communication in millimeter and sub-millimeter ranges with high spectral density of information channels for signals with any - wide or narrow - band of information signals.

4 cl, 12 dwg

Up!