Multifunction system for integration and data transfer of video information services

FIELD: data transfer networks; transmission and reception of audio and video signals.

SUBSTANCE: as distinct from centralized architecture of building video information service center, proposed system is built as distributed system that has one base video information service center and several local ones coupled with the latter through main-line communication channels. Base video information service center has in addition output to public telephone network, Internet, and mobile communication network. In addition, local information service centers and base one incorporate digital telephone exchanges, and users of local information service centers are additionally connected to these digital telephone exchanges. Technologies of local networks (Ethernet, Fast Ethernet, Gigabit Ethernet) are used for connecting users of local information service centers to servers.

EFFECT: enhanced servicing speed at lower throughput of main-line communication channels.

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The present invention relates to the field of image transfer and can be used to generate, aggregate, and transmit information through various channels of communication in a single package of telecommunications services, including video telephony, video conferencing, video on demand, broadcast television and radio broadcasting, distance learning, telemedicine, surveillance and transmission of telemetry data about objects with control and remote control. Source of information signals are generated, for example, with the aid of television cameras or other sources of color, volume or other images, the signal sources for radio and television, the signals of the sources of textual, graphical and audio signals of the sensors telemetry data and security alarm. The provision by operators on the market of commercial products together with your existing communication services - telephony, Internet, data transmission, a relatively new non-traditional video services, will provide a logical extension of their possible range, and determines a new phase in the sphere of telecommunications companies when using the technical solutions of the present invention.

Known methods and systems for transmission of AU the IO and video in real time, which are in demand in different areas. For example, system a one-way transmission of radio and television signals for organization purposes radio and television broadcasting (Television /edited Wegame. M.: Radio and communication, 1997, 640 S. Digital television /edited Nshmyrev. - M.: Hot line - Telecom, 2001. - 180 S., Smirnov A.V. fundamentals of digital television: a Training manual. - M.: Hot line - Telecom, 2001. - 224 S.: ill.).

Known applications of Autonomous systems, CCTV, TV vision systems, multispectral TV breeding systems of interest, automated self-learning pattern recognition systems (see Zubarev SHE, Sagdullaev YU.S. Spectral selection of optical images. Publishing house FAN, RUz. Tashkent,1987 - 108 S. Detection of optical images./Under the General Ed. Jussawalla, Ustinova, Tashkent, 2000-315 C.)

Known as separate systems, video conferencing and video telephony, and video over a packet-based (IP) networks in real time (see Digital processing of television and computer images, Ed. Ubobaruv and Wppdicch. - M.: international Centre for scientific and technical information, 1997. - 212 C.).

Known individual decisions on the implementation of video on demand", for example (see U.S. patent 6571390 from 27.05.2003 year), which describes three of the CBE the data between the invention: "network entertainment system", "setting method programs in accordance with the preferences of the client and the front-end device with which the user interacts with the system. Patented Microsoft system is designed to provide the opportunity to create individual lists of video programs such as movies, games, variety show, which will be delivered to the client from the data store provider via different communication channels: cable, wireless or satellite. For admission to these programs must use special television set.

Known model structure and interaction in interactive digital television (TV) broadcasting, as well as the structural model of interactive digital television broadcasting (see Zubarev SHE, Krivosheev M.I., Krasnoselskaya N. Digital television broadcasting. Basics, methods, systems. - M.: Scientific-research Institute of radio (R & d), 2001. - 568 S.: ill). Online in broadcasting systems is considered as an additional means to obtain viewers a greater number of services and their involvement in a number of direct participants of the transmitted program. The reference model for interactive systems terrestrial broadcasting provides for the first and includes a unidirectional broadcast channel for delivery of television programmes and reverse online is reaktivny channel to send requests to a provider of interactive services. In some cases the reverse channel can be full-duplex. As the delivery medium of broadcast programs can be used broadband digital network channels terrestrial broadcasting and cable distribution, satellite system direct and collective reception and other Feedback channels can be of various nature - switched channels telephone network of General use, asymmetric digital subscriber line ADSL, hybrid fiber-coaxial lines, the Internet and other

Analysis of the known sources shows that the formation and transmission of data of the video system services communication channels exist as separate systems and not in the form of a single multi-functional source in a holistic package of telecommunications services.

As the closest analogue of the claimed invention on a set of attributes and operations on the signals to obtain a technical result accepted source, which describes the principle of building rich, interactive system integration and data transmission video and diagram provides an overview of the formation and delivery of the video system services (see Sagdullaev US, Galabov V.Y. a New stage in the integration of information resources. Part 1, 2 // Broadcasting. TV and radio broadcasting. M. 2003, No. 6, p.76-80, No. 8 p.54-56).

The rice is ke specified source (No. 6, p.80) presents a General scheme for the formation and delivery of the video system services (figure 1). The basis for solving the above problems, the video system Center services designed to create and provide the following services:

- video telephony and video conferencing;

- transmission of programs broadcast television;

- interactive television and broadcast video on demand;

- surveillance and monitoring of objects;

- distance learning and education;

- telemedicine;

- transfer programs broadcasting stations FM;

music on-demand and other

In its composition the video system Center service (CVO) is:

1. The communication unit (CU), having access to the data network and the Internet. The main functions of KU are: routing, schedule control, organization relations and operational management of the subscribers access to a pool of servers. In addition, it has spawned tasks to ensure security and prevent unauthorized access to the LAN Center.

2. Multifunctional video, including: servers, TV broadcast, interactive television and broadcast video, broadcast, video conferencing and video telephony, video monitoring and state of the remote object, the remote is on learning and education, telemedicine, the application server, monitoring server, each of which can have its own database. This server pool forms services video portal: reference, cognitive, educational, control and security, etc. Each server is connected to an individual port of the communication node using a high-speed channel for Fast Ethernet.

3. The access server, which is used for connecting subscribers of the video system Center services through dial-up or dedicated connections, performs authorization and authentication.

4. Local network monitoring server and personal computers (PCs) services video system Center service (groups of technical and software support).

5. Peripheral part including the sources of programs for television and radio broadcasting, video surveillance and other, as well as the appropriate equipment for receiving and transmitting signals in a server pool Center.

The core of the system is a specialized portal (server pool), receipt, formation, storage, switching and simultaneous transmission of data to a large number of users at their request.

All kinds of video system services, which can generate and transmit considered CWU by increasing the potential number of concurrent users, trebuutsa performance of the underlying communication node and having a wide bandwidth, first of all, the main channels of communication from CWU, as well as communication channels, reaching to the average user. This is the main drawback of this system that uses a centralized architecture build CWU. With this design, system quality video streams depends on the network load, which negatively affects the transmission and reception of video users in real time.

So, if you consider providing this system only one service video on demand and take into account that the conventional method of data compression for the purpose of broadcast television and video-on-demand is currently the MPEG-2 standard, it is possible to reduce the bit rate of the encoded signal to 5-10 Mbit/s While to get Studio quality received image, you can compress the video to speed transmission of 10 Mbit/s and to ensure image quality comparable to conventional image system PAL colour - up to 5 Mbit/s (See. Smirnov A.V. fundamentals of digital television: a Training manual. - M.: Hot line - Telecom, 2001. - 224 S.: ill.). Even if we accept that the number of users of video-on-demand is 100...300, a main communication channel must be designed to provide guaranteed bandwidth capable of being the particular not less than 500...1500 Mbit/s

When providing services, video telephony, video conferencing (VC) the following should be noted. The classical scheme of video conferencing implies a connection between terminals on ISDN lines. But along with this widespread videoconferencing system that uses the IP network. Usually to conduct videoconferencing uses lines with a bandwidth of up to 512 Kbps for ISDN channels and up to 1-1 .5 Mbps for IP networks. Therefore, the increase in the number of users of these services also requires a high-speed backbone from CWU.

The trend of increasing speed data transmission in mobile networks due to the planned transition to mobile communication systems second generation GPRS and 3G, will open in the coming years, the actual transmission and reception of video information is relatively good quality. This will allow you to use cell phones to receive various kinds of video information, such as operational surveillance of the condition of the apartment and other objects. This service surveillance and monitoring facilities will be widely disseminated to users who have not only fixed terminal device, but the phone mobile phone network of a new generation that will also require a wide bandwidth backbone in operas the Torah communication having in its composition, CVU.

Based on the required minimum basic data transfer rates for individual types of the video system services (see Sagdullaev US, Galabov V.Y. a New stage in the integration of information resources. Part 2 // Broadcasting. TV and radio broadcasting. M., 2003, No. 8, p.54-57), it follows that the total data rate in the main channels of communication can be a substantial amount (tens of Gbps, depending on the form of video and number of users).

Thus, the implementation of the considered system CWU with increasing number of users will require a mobile broadband backbone links, providing high speed data transfer.

The technical result - the high-speed synchronous data transfer for multiple video service in a telecommunication network operator with less bandwidth backbone connection.

The technical result is achieved by the fact that in contrast to known systems integration and data video system services that use a centralized architecture of the video system Center services in the claimed invention applied the principle of constructing a distributed system consisting of one base and several lo the social communication (LUZ) with providing the full possible range of telecommunications services, in particular to achieve a technical result of the proposed multi-system integration and data video system services, containing basic communication, including high-speed communications node, the server node containing F servers and S sources, audio-visual, textual or other information, and where each server, and an information source connected to a separate port high-speed communications node using a high-speed channel, Fast Ethernet, and basic communication node connected to the data network, the Internet and/or mobile communications network, and each network contains subscriber terminal device, with high-speed communication system through N of the circuits of series-connected router, an inverter and a multiplexer connected using N main communication channels with N local communication nodes, each of which consists of series-connected between a multiplexer, Converter, router, the first switch, and G servers and Y sources of television and other signals, where each server, and an information source connected to a separate port of the first switch using a high-speed channel, Fast Ethernet, a second switch connected with the first switch and switches the node distribution is to be placed and delivery information where all routing and switching devices of the data network local communication node are connected by channels with a bandwidth of 1000 Mbps using both twisted-pair and fiber-optic cables between the second switch and the switch nodes distribution and delivery of information that has a connection with the subscriber terminal devices, the connection of which is carried by a twisted pair with a baud rate of 100 Mbps, while the second output multiplexer local communication node connected to the input of a digital PBX, through which the gateway is connected to the first switch, the other outputs PBX, through the station and subscriber cross m rooms, connected to the second input terminal of the device, furthermore, in addition to basic communication node introduced digital PBX connected through a gateway with high-speed communication node and a second multiplexer having a through main channel output to the telephone network (PSTN) with W terminal devices.

In addition, the subscriber terminal devices are composed of z television cameras for surveillance of objects, h security sensors and security alarms, q actuators connected server local communication node, having a through abonents the e terminal device connection with the third switch of the local communication node, in addition, the subscriber terminal device has a separate connection to the IP phone, personal computer, and through a television set-top box to the television receiver, as well as in PJsubscriber terminal devices enabled phone connected through the junction box with a dial part of the cross digital PBX local communication node.

Figure 2 presents the structural diagram of the claimed multi-functional system integration and data video system services. Multi-system integration and data video system contains on one side: basic communication node 1, having in its composition: the communication node 5, F base server 6, S sources 7, N the signal processing units 2, each of which includes: router TCP/IP 8, the Converter 9, the multiplexer 10, and the base of automatic telephone stations (ATS) 11, the gateway 24, the second multiplexer 12, N+j trunk channels 13 on the other side: N local nodes 3, each of which the multiplexer: the multiplexer 14, the Converter 15, the router 16, the first switch 17, G local servers 18, Y sources of information 19, the second switch 25, the local PBX 20, station and subscriber cross 21, L distribution devices, and information delivery 4, sostojashie is from: L switches 22 and R subscriber terminal devices 23, on the third side: telephone network (PSTN) 26 and subscriber terminations 27, on the fourth side: the Internet 28 and the D terminal devices 29, at the fifth party: the mobile network 30 and videoregistratorov 31. PJthe subscriber terminal device (3) are composed of z television cameras for surveillance of objects, h security sensors and security alarms, q actuators, local j - server 37, j - subscriber terminal device (CPE) 32, the IP phone 33, a personal computer 34, a television set-top box (STB) 35, the television receiver 36, the telephone device 38, the junction box 39 (where all letters of the Latin alphabet are integers).

This system is intended to provide video services

- video calling (video telephony and video conferencing);

video on demand;

- video surveillance control and management objects;

- transmission of programs broadcast television and interactive television;

- distance learning and education;

- telemedicine;

- transfer programs broadcasting stations FM;

music on-demand and other

This system also has the capability of providing traditional Telecom services - telephony, Internet, data transmission to the user base, and local nodes.

The interaction of blocks and nodes and operation of the multifunctional system integration and data video system services is as follows. Basic communication node 1 is composed of a communication node 5 connected to the server 6, S signal sources 7 and routers 8. The data network in the basic communication node 1 represents a single bus Ethernet, built on the switch 5. The scheme of the base unit 1 to provide telecommunication services to transfer data via Ethernet technology and has soedinenie each local communication node 3j main channel 13Jand a separate connection to the mobile network 30 and the Internet 28 via the main communication channels 13N+1and 13N+2. In addition, the base unit 1 has a through main channel 13N+3connection to telephone network (PSTN) 26. The scheme of the local communication node 31data and the provision of telecommunications services running on Ethernet and is connected to the base node operator 1 main channel 131having a bandwidth equal to·E1. A distinctive feature of the building this local communication node (LUZ) is the included G-m server 18 to provide VideoEntry the ion services. The data network is a single bus Ethernet built in Ethernet switches 17, 25 and 22, where one switch 17 is connected to the local server pool 18, the Y signal sources 19 and the switch 25, to which is connected L switch 22 connected to the R terminal devices 23. The organization of this architecture transport network telecommunications services allows you to organize VLAN-Association of users into groups and to provide the required class of service, including for the transmission of multimedia information. As the network Protocol is TCP/IP. Connecting the subscriber terminal devices 23Jat speeds of 100 Mbps from the switch 22Jtwisted pair fifth category. PJsubscriber terminal device 23 are composed of z television cameras for surveillance of objects, h security sensors and security alarms, q actuators, each of which is connected with the local j-server 37, which through j-subscriber terminal device 32 (CPE) is connected with the third LJswitch NJlocal communication node, in addition, j-subscriber terminal device 32 also has a separate connection to the IP phone 33, a personal computer 34, and through a television set-top box 35 (STB). the second receiver 36. In addition, PJsubscriber terminal devices are composed telephone device 38 connected through the junction box 39 with a station and a subscriber cross 21 LUZ. To provide high bandwidth data network inside LUZ all routing and switching devices 16, 17, 25 (Cisco Catalyst) are connected by channels with a bandwidth of 1000 Mbps twisted pair sixth category. The switches 25 and 22Jare interconnected via optical cables. To deploy Ethernet network LUZ with a capacity required to provide streaming audio/video and other video services, high-speed access to the Internet, IP telephony services, can be used technology LRE Long Reach Ethernet, or Ethernet long range. Technology LRE provides a symmetrical transmission of incoming and outgoing data and broadband services on the same telephone pair, which uses traditional and digital telephony and ISDN. LRE provides quality of service (QoS) level 2, security, and network management via a web interface on a Cisco Switch Clustering. Cisco LRE includes a switch Cisco CatalystR2900 LRE XL, subscriber terminal equipment (Customer Premise Equipment CPE) Cisco 575 LRE and phone splitter Cisco LRE 48. All components LRE-R the solutions deliver the performance, sufficient for simultaneous transmission of voice, video and data, high-speed Internet access, video on demand and IP telephony. Basic server pool (set of 6 servers)containing F servers, consists of F-n servers for video services, and n servers are used as access server (BRAS), e-mail, file sharing (FTP), HTTP, server, providing Internet telephony and others, The same applies to the local server pool(a collection of servers 18)containing G servers, where only G-m servers used under the video system services.

In this data transmission system video system services there are four categories of users: data transmission network operator, having in its composition a base server pool (server node) 6 and the local server pools 18, the Internet 28, the mobile communication network 30 and the telephone network (PSTN) 26. The main types of video services and possible ways of passing information in the following:

1. Video on-demand, interactive television, broadcasting, distance learning:

a) local server pool video services - local data transmission network user ();

b) basic server pool video - the main channel of communication - the Internet - user, R);

c) basic server pool video - main channel - network mobile operator - user (V).

The main advantage, for example, video-on-demand is the use of the online channel to order those or other video programs broadcast television or any part, which stirred some interest among users. Screening can be done at a certain time and in the required form.

Services of video on demand the following:

webcast on-demand videos and films as well-known and specialized on a specific field of knowledge;

retransmission of the video and a separate previous live TV and video on advance request subscribers;

- transfer on request schedules of TV programs broadcast and basic information about their content;

- other types of services associated with the presence of a return channel between users and the provider of the video system services.

To provide services for video on demand in LUZ is used by the video server 18Jthat in addition to local content video has the ability to retrieve missing video content from the video server 6Jbasic communication node. When users are given spydocwithanti, which are currently available, and also a separate list of video content, which may be granted after a while. The main functions of the local video server is to store and broadcast upon request subscribers or other video content to view it. Video on-demand is available unicast video transmission to the user. The user can watch digital TV image on the monitor standard PC (with a corresponding subscriber software)and on the screen of a CRT TV receiver with the appropriate TV set-top boxes, the client device (set-top-box)that converts the digital stream into an analog video signal (figure 3) Console has a regular low-frequency output for connecting to TV and audio output for connection to your home theater system.

2. Service video (videoconferencing and video telephony):

a) user (a) to the local data transmission network, the local server pool video services - local data transmission network user ();

b) the user (S) - the Internet is the main communication channel is the base server pool video - main communication channel is the Internet user (D);

c) the user (F) - local data transmission network, the local server pool video services - highway the first communication channel - basic server pool - the main channel of communication - the Internet - user (N);

d) user (L) - local data transmission network, the local server pool video - main channel - base server pool video - main channel - network mobile operator - user (Z);

f) the user (S) - the Internet is the main communication channel is the base server pool video - main channel - network mobile operator - user (P);

g) the user (J) - local data transmission network, the local server pool video services (A) main channel - base server pool video - main channel - local-server pool video services (In) - local data transmission network - user (W).

To provide this type of video can be used in a variety of domestic and foreign hardware and software, such as system teleconferencing/video telephony (development of R & d, Moscow), the software product to conduct videoconferencing multipoint mode Click to meet.

3. Service surveillance, control, and management objects:

a) J - source surveillance - local data transmission network, the local server pool video services - local data transmission network, the user (F);

b) J - source is Ignatov video surveillance the local data transmission network, the local server pool video - main channel - base server pool video - the main channel of communication - the Internet - user (M);

c) J - source surveillance - local data transmission network, the local server pool video - main channel - base server pool video - main channel - mobile network - user (L);

d) J - source security and burglar alarm - local data transmission network, local PBX - trunk channel - base PBX - trunk channel - telephone network (PSTN user (M);

e) J - source security and burglar alarm - local data transmission network, the main channel of communication - basic communication - the main channel of communication - the Internet - user (Y);

f) J - source security and burglar alarm - local data transmission network, the main channel of communication - basic communication - trunk channel - mobile network - user (U);

g) the user (D) - telephone network (PSTN - trunk channel - base PBX - trunk channel - PABX - local data transmission network Executive is a device management object;

h) user (L) - the Internet is the main channel of communication - basic communication - trunk channel - local communication node - local data transmission network Executive control device objects;

i) the user (S) - mobile network - the main channel of communication - basic communication - trunk channel - local communication node - local data transmission network Executive control device objects;

j) user (N) - local data transmission network, the local communication node - local data transmission network enforcement device management user objects (F);

k) J - source security and burglar alarm - local data transmission network, PABX - local data transmission network, the user (M), etc.

The proposed multifunctional system integration data of the video system includes a base and a local hardware-software complex for creation, storage, processing and transmission of video and telemetry data. For the provision of surveillance, control, and management objects, the system includes multiple logical subsystems: security and protection, monitoring and surveillance, control (figure 3). The functionality is further features of these subsystems the following:

(a) a security Subsystem and protection provides operational control

- unauthorized access to protected areas;

- opening doors, Windows, gates;

- broken glass, possible strikes, etc.;

- temperature and gas;

- humidity and possible flooding and other

b) management Subsystem implements

- opening the doors, gates, etc.;

- management of heating and ventilation;

- controlled curtains and blinds;

control the degree of illumination;

- switching on and off various appliances;

- logging of events;

- ongoing management of the objects to local control;

- remote control of objects by telephone and other

in) Subsystem monitoring and surveillance provides

- round-the-clock surveillance of the status of protected objects;

- video monitoring unauthorized access, opening doors, Windows;

gates and others;

- maintenance recording event;

- transfer images from CCTV cameras on local TV or on request - remote user and other

In LUZ 3Jdata video system services provided j-server to collect information about video surveillance, for example, flats (or other object)that allows the user of this service, which finds the I outside the apartment, carry out the supervision and control of objects via the Internet. To do this, the user must have Internet access and interface j-access server base unit communication request to receive the necessary information about the object of surveillance. When abnormal situations can be carried out with LUZ 3Jthe signal "alarm", the dial on the user's telephone, and automatic recording of the status of the situation, including its background with a specified duration of playback.

These subsystems allow you to transfer via communication channels

- information about the state of objects to landlines and mobile phones users;

- video information to the remote computer;

messages in the rescue services, the police and others (as appropriate).

To provide telephone communication uses standard digital PBX 20. Cable facilities telephony divorced from the subscriber side of the station and subscriber cross 21 paired cables, and through junction boxes are served directly to the subscriber terminal devices 23J. The telephone network is designed for m analog subscriber ports with the possibility of extension. Digital PBX 21 local communication node 3JProtocol EDSS1 connected to the telephone network base node of the ligature 1 the main channel 13 Jwith bandwidth equal to r·E1.

The redistribution of tasks between the base node and the local nodes in the system provides a uniform load on the main channels of communication. Because the sources of information that can circulate through the system the video system services, diverse, they can be divided into several separate categories and groups. In a distributed system easily provides increased reliability by redundancy in the communication functions of the servers to each other. With this architecture of multi-system integration and data video system service has the optimum matching with the existing infrastructure of the telephone network, data network, Internet and mobile network. This scheme has a number of advantages, which include high-speed transfer and exchange of information in the data network, the possibility of gradually scaling and additions LUZ video system and other sources. This scheme of organizing the delivery of telecommunication service users determines the reliability and flexibility of system operation, minimizes the load on the main channel. Allows through the LAA to transmit data at a higher speed, provides rapid access to different the m centralized information services.

The principle of operation and detailed description of the operation of the individual blocks and devices of this system associated with signal processing in analog and digital form, transmission of video information and digital data over heterogeneous communication channels, including in JP-networks can be found in the relevant sections of the books:

1. Television: the Textbook for high schools/ Wegame, Aol, Aviruses and others; Ed. by Wegason. - M.: Radio and communication, 2000, 640 S.: ill.

2. Zubarev SHE, Krivosheev M.I., Krasnoselskaya N. Digital television broadcasting. Basics, methods, systems. - M.: Scientific-research Institute of radio (R & d), 2001. - 568 S.: ill.

3. Roslyakov, A.V., M. Samsonov, Shibaeva IV IP telephony. ): Eco-Trends, 2001, 250 S.

4. Litzinger BJ, Kuzyakin M.A., ALEXANDER Roslyakov, Fomichev S.M. Intelligent network): Eco-Trends, 2000, 207 S.

5. Modern principles of building systems operation/ Manual for operators, system integrators and engineering companies. The publication of the company METROTEX. - M., 2002, 327 S.

1. Multi-system integration and data video system services, containing basic communication, including high-speed communications node, the server node containing F servers and S sources, audio-visual, textual or other information, and where each server, and an information source connected to an individual on the volume of high-speed communication node using a high-speed channel, Fast Ethernet, moreover, the basic communication node connected to the data network, the Internet and/or mobile communications network, and each network contains a terminal device, characterized in that the high-speed communication system through N chains of series-connected router, an inverter and a multiplexer connected using N main communication channels with N local communication nodes, each of which consists of series-connected between a multiplexer, Converter, router, the first switch, and G servers and Y sources of television and other signals, where each server, and an information source connected to a separate port of the first switch using a high-speed channel, Fast Ethernet, a second switch connected with the first switch, and L switches, hosts, distribution and delivery of information, where all routing and switching devices of the data network local communication node are connected by channels with a bandwidth of 1000 Mbps using both twisted-pair and fiber-optic cables between the second switch and L switches, hosts, distribution and delivery of information connected to the R terminal devices, the connection of which is carried over twisted pair speed before the Chi 100 Mbit/s the second output of the multiplexer local communication node connected to the input of a digital PBX, through which the gateway is connected to the first switch, the other outputs of the PBX through the station and subscriber cross at the m room is connected to the second input R of the subscriber terminal devices, besides, in addition to basic communication node introduced digital PBX connected through a gateway with high-speed communication node and a second multiplexer having a through main channel output to the telephone network (PSTN) with W terminal devices.

2. The device according to claim 1, characterized in that the Pjsubscriber terminal devices are composed of z television cameras for surveillance of objects, h security sensors and security alarms, q actuators connected server local communication node, having through the subscriber terminal device connection with the third switch of the local communication node, in addition, the subscriber terminal device has a separate connection to the IP phone, personal computer, and through TV console - with the television receiver, as well as in Pjsubscriber terminal devices enabled phone connected through the junction box with a dial part crossocerus PBX local communication node.



 

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SUBSTANCE: method for transferring synchronous television signals of multi-gradation images includes, at transferring side, operations for processing and transformation of N synchronous analog television signals to N synchronous digital television signals, by means of their analog-digital transformation, forming of digital synchronization signals, transmission of signals via communication channel, and at receiving side, reversed operations over signals are performed to in comparison with transmitting side, during which after forming of digital synchronization signals, aforementioned signals are joined as one multi-level resulting signal S by means of analog-digital transformation of N synchronous digital signals, further, multi-level resulting signals S is added to synchronization signal, amplified and transferred along communication channel, and at receiving side multi-level resulting signal S is amplified, then synchronization signals are separated from it, controlling and clock pulses are formed, then, operation of analog-digital transformation of multi-level resulting signal S is performed and N synchronous digital television signals are formed in serial code, after that, operations over signals are performed, being reversed relatively to those at transferring side, namely, each digital signal, represented by serial code, is transformed to parallel n-byte binary code, then, forming of N source analog synchronous television signals of multi-gradation images is performed by means of their digital-analog transformation.

EFFECT: possible concurrent transmission of N synchronous analog television signals of multi-gradation images within frequency band of one analog signals, transformed into television form.

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FIELD: communications.

SUBSTANCE: video-phone communication is based on cable television networks. At client side attachment and transmitting camera are mounted. In cable networks commutation blocks are positioned - automatic phone stations, provided with input devices. Clients are distributed among client networks, in which all clients are connected to same two-wire line. Each client has transmission frequencies and receipt frequencies for television signals assigned.

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The invention relates to a method and apparatus for a television game program

The invention relates to the field of video equipment, in particular to method and system, according to which data transfer is performed by a telecommunications network which at least partly consists of a mobile radio network

The invention relates to the field of education, audiovisual systems, communication systems and computer networks

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The invention relates to transfer and view video

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The invention relates to combining the Internet with the phone systems

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SUBSTANCE: video-phone communication is based on cable television networks. At client side attachment and transmitting camera are mounted. In cable networks commutation blocks are positioned - automatic phone stations, provided with input devices. Clients are distributed among client networks, in which all clients are connected to same two-wire line. Each client has transmission frequencies and receipt frequencies for television signals assigned.

EFFECT: higher efficiency.

3 dwg

FIELD: technology for transferring images, can be used for concurrent transmitting and receiving within frequency band of one digital television image signal, N synchronous television signals of multi-gradation images, formed using, for example, television cameras or other sources of black and white, colored, spectrum-zonal, volumetric, or other multi-gradation images, and also can be used for concurrent recording and conservation of N synchronous television signals of multi-gradation images, and can be possibly utilized for construction of video-surveillance systems, television systems for remote probing of Earth surface and multimedia video-information transfer systems.

SUBSTANCE: method for transferring synchronous television signals of multi-gradation images includes, at transferring side, operations for processing and transformation of N synchronous analog television signals to N synchronous digital television signals, by means of their analog-digital transformation, forming of digital synchronization signals, transmission of signals via communication channel, and at receiving side, reversed operations over signals are performed to in comparison with transmitting side, during which after forming of digital synchronization signals, aforementioned signals are joined as one multi-level resulting signal S by means of analog-digital transformation of N synchronous digital signals, further, multi-level resulting signals S is added to synchronization signal, amplified and transferred along communication channel, and at receiving side multi-level resulting signal S is amplified, then synchronization signals are separated from it, controlling and clock pulses are formed, then, operation of analog-digital transformation of multi-level resulting signal S is performed and N synchronous digital television signals are formed in serial code, after that, operations over signals are performed, being reversed relatively to those at transferring side, namely, each digital signal, represented by serial code, is transformed to parallel n-byte binary code, then, forming of N source analog synchronous television signals of multi-gradation images is performed by means of their digital-analog transformation.

EFFECT: possible concurrent transmission of N synchronous analog television signals of multi-gradation images within frequency band of one analog signals, transformed into television form.

2 dwg, 1 tbl

FIELD: data transfer networks; transmission and reception of audio and video signals.

SUBSTANCE: as distinct from centralized architecture of building video information service center, proposed system is built as distributed system that has one base video information service center and several local ones coupled with the latter through main-line communication channels. Base video information service center has in addition output to public telephone network, Internet, and mobile communication network. In addition, local information service centers and base one incorporate digital telephone exchanges, and users of local information service centers are additionally connected to these digital telephone exchanges. Technologies of local networks (Ethernet, Fast Ethernet, Gigabit Ethernet) are used for connecting users of local information service centers to servers.

EFFECT: enhanced servicing speed at lower throughput of main-line communication channels.

2 cl, 3 dwg

FIELD: communications engineering, transmission of images and signals, possible use for simultaneous transmission and receipt of N digital signals in communication equipment.

SUBSTANCE: the method for encoding and decoding signals includes combination of N synchronous digital signals at transmitting side into one multilevel resulting signal S, p-multiple transformation of original multilevel resulting signal S into new multilevel resulting signal Sp by execution of analog-digital and digital-analog transformations of signals in separate serially connected signal processing units. At receiving side, reverse operations are performed with the signals in comparison with the transmitting side.

EFFECT: possible transmission of one or combined transmission of several N synchronous analog television signals of multi-scale images or different digital signals in M-times lesser frequency band of one analog signal, transformed to digital form.

3 cl, 3 dwg, 1 tbl

FIELD: communications engineering, possible use for conducting multi-point video/audio conferences which use transport protocols of TCP/IP stack in star circuit (point to multi-point) in broadcasting networks.

SUBSTANCE: method results in reduction of required total traffic capacity of data transmission channels between remote video conference communication terminals and the server for setting up multi-point video conferences(MCU) due to usage of filtration mechanisms for data streams which transmit video images and voice information.

EFFECT: increased efficiency.

2 cl, 6 dwg

FIELD: radio-engineering.

SUBSTANCE: invention refers to transmission of digital services, and namely to DVB- compatible services (digital video broadcasting). Method involves at least the following steps at which: receiver is connected to a stream of digital data in order to receive that stream of digital data; receiver extracts from the above stream the information on the network location, on the one hand, of streams transmitting contents of the above digital services, and on the other hand, of individual streams transmitting the information on the above digital services; receiver is connected at least to the stream of the above individual streams transmitting information that describes the service, in order to receive the information on those services; receiver uses that information for making the list that includes at least one service available in network.

EFFECT: receiver connected to bidirectional network identifies digital services in bidirectional network.

8 cl, 10 dwg

FIELD: physics, communications.

SUBSTANCE: present invention is related to video-telephone system, in which possibility to transfer and receive visualised moving images at basic radio communication station is provided by use of mobile communication terminal (terminal of PHS or PDA system). Video-telephone system, comprising the following components: mobile communication terminal, which is able to transmit and receive introduced moving images and speech data into basic radio communication station; autonomous basic station that operates to receive mentioned moving images sent to mentioned basic radio communication system and received from it, on the basis of communication protocol that is used between mentioned basic station of radio communication and mentioned mobile communication terminal; and monitor that operates to reflect moving images received by mentioned autonomous basic station.

EFFECT: possibility to realise video-telephone communication with high-quality images using camera installed in mobile communication terminal.

13 cl, 9 dwg

FIELD: information technologies.

SUBSTANCE: introduction of session description which describes audio-visual presentation transferred to the recipient in the form of flow is introduced at least to some messages of Real-time transport control protocol (RTCP), which are supplied from audio-visual information content source to the recipient. That message can be connected for example to one of the variety of audio-visual information content parts included in the list of audio-visual information content reproduction, which is transferred in the form of a flow from the device to the recipient. In accordance with some aspects, RTCP message, which introduces session description message, consists at least of three fields: the first field containing the data identifying RTCP message as the one referring to the type which introduces session description message; the second field containing the data which is session description message for multimedia representation, and the third field containing the data identifying the length of RTCP message generated by adding the length of the first, the second and the third fields.

EFFECT: providing introduction of session description message to message of real-time transport control protocol.

11 cl, 20 dwg

FIELD: information technologies.

SUBSTANCE: synchronising-control events are generated at head server, containing both event and its content data coordinated with data on the time of beginning and end of broadcasting content of television program, interactive data is repeatedly sent to subscriber device for the period of time controlled by head server, it is received and processed by subscriber device, comprising TV attachment.

EFFECT: provides for reliable synchronisation of interactive content with television broadcasting flow, and reduced volume of resources of receiving subscriber device taken for processing and memorising of interactive content.

7 dwg

FIELD: information technology.

SUBSTANCE: there is disclosed method for interface adaptation of television internet protocol with a stream data storage device, involving reception of packet commands from a service layer by an adaptation layer; evaluation by the adaptation layer of the type of packet commands and decomposition or formation of packet commands into elementary commands; storage by the adaptation layer of the decomposed or formed elementary commands in a queue in accordance with the condition for limitations of elementary commands in the stream data storage device; obtaining by the adaptation layer of elementary commands from the queue and sending a request to the stream data storage device when the limitation condition is met; evaluation by the adaptation level of operation results, and if successful, the process is completed; otherwise the appropriate transmission mode which corresponds to a predetermined strategy is selected.

EFFECT: efficient use of multiple stream data storage devices and provision for a more convenient and efficient service for data stream users.

14 cl, 4 dwg

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