Method and device for handling errors in electronic service guide transmission in digital video broadcasting system

FIELD: physics; communication.

SUBSTANCE: invention relates to digital video broadcasting systems using an electronic service guide (ESG). A device is proposed for handling errors in ESG transmission in a digital video broadcasting system, which includes a service application (SA) component for receiving a request message for file restoration from a communication terminal after transmitting ESG from a service management (SM) component to a terminal and, if the request message for file restoration is an ESG request, providing the SM component with a request message for file restoration and a terminal address; a logic device for compiling ESG for generating ESG within a SM component which interprets the request message and determines whether to resend the ESG to the terminal, and if a decision is made to resend the ESG, the logic device for compiling the ESG sends ESG metadata and terminal address to an interactive server for transmitting ESG within the SM component, and the interactive server sends ESG metadata to the terminal.

EFFECT: design of a video broadcasting system capable of sending a restoration request to a network and receiving a repeatedly transmitted ESG when an error occurs during transmission of the ESG.

33 cl, 14 dwg

 

The LEVEL of TECHNOLOGY

1. The technical field to which the invention relates

The present invention generally relates to Electronic Service Guide (ESA) in the system, digital video, and more particularly, to a method and device that can handle the error in the transmission, using the query command to restore the file when an error occurs in the transmission of the ESA.

2. Description of the prior art

Digital video broadcasting (DVB - Digital Video Broadcasting) is a transmission standard for digital multimedia services to portable and mobile terminals, and the existing digital broadcasting in accordance with the European digital broadcast technologies.

The DVB system can summarize data broadcasting on the basis of Transport Streams (TS) standard MPEG2 format video compression developed by a Group of experts in the field of cinema) and can simultaneously transmit data streams over IP (Internet Protocol interworking). Additionally, the DVB system can condense and transmit different services in a single IP flow. After receiving data transmitted IP flow terminal resultsthat received data on individual services, decodes the TS required services and provides the user with the decoded TS on the screen of the display device. is as this stage, the user needs information about the various services and content services, provided by the DVB system.

The DVB system uses an Electronic Service Guide (ESA) to provide notification of service information. Data the ESA include temporal information for specific services, related information about the content, the information required for receiving content information for content acquisition and so on. The DVB system builds a data model for efficient data transfer the ESA and generates data that you want to transfer, on the basis of the data model.

The ESA is transmitted to the terminal using the IP flow during non-time stream of real data. Thus, the service provider may transmit the information to use the ESA to receive a user of the services. Because the ESA can be used for various purposes, in addition to the program guide information of the ESA is very important in the environment of mobile broadcasting.

When the ENA is transmitted to the terminal, it is recognized as a regular file and is transmitted using the same Protocol as the file transfer Protocol. Usually, for mobile broadcasting, file transfer Protocol meets the standard for transferring files over unidirectional transport Protocol (FLUTE - File Delivery over Unidirectional Transport), described in the work which their proposals (RFC Request for Comments) 3926 engineering group on the development of the Internet (IETF - Internet Engineering Task Force). If an error in transmission occurs when the terminal receives the ESA, the network may be sent a request for restoration of the ESA using the query command to restore the file, as in the case of a regular file. However, the problem is that the network is not provided by the method and apparatus for handling errors in the transmission. Thus, a need exists for a method and device capable of sending to the network a request for the restoration and take resubmitted the ESA, when an error occurs in the transmission of the ESA.

DISCLOSURE of INVENTIONS

Accordingly, the present invention was developed to solve the above-mentioned and other problems occurring in the prior art. The present invention provides a method and device that can accept a re-transfer of Electronic Service Guide (ESA)using the regular query command to restore the file when the terminal receives the ESA and when this error occurred in the transmission system digital video streaming to ensure the ESA.

In accordance with one aspect of the present invention provides a method for handling errors in the transmission of Electronic Reference Services (ES) in the system, digital video, and the method includes SEBUTAPE, for those who are using the service component of application, the request message to restore the file from the terminal after the broadcast, the ESA from the component services control terminal; transmit the request message to restore the file and the address of the terminal from which the message was sent the request to restore the file from the component service application component management services when the request message for the restoration of the file includes a request for ESA; interpret the request message for the restoration of the file in the logical device specification ESA to generate the ESA within the component services management and determine whether to pass again the ESA on the terminal that has transmitted the message the repair request file; deliver the metadata of the ESA and the address of the terminal from the logical device specification ESA interactive server (node) to transmit the ESA within the component services management, if you decide to re-transfer the ESA; transmit the metadata of the ESA from the interactive server to the terminal.

In accordance with another aspect of the present invention provides a method for handling errors in the transmission of Electronic Reference Services (ES) in the system of digital video, the method includes the steps in which to take the try, by using the service application, the request message to restore the file from the terminal after the broadcast, the ESA from the component services control terminal; transmit the request message to restore the file and the address of the terminal from which the message was sent the request to restore the file from the component service application component management services when the request message for the restoration of the file includes a request for ESA; interpret the request message in the logical device specification ESA to generate the ESA within the component services management and determine whether to refer again to the ESA on the terminal, which has transmitted the request message to restore the file; deliver metadata The ESA and the address of the terminal from the logic device composing the ESA component of the service application, if you decide to re-transfer the ESA; transmit the metadata of the ESA from the component service application on the terminal.

In accordance with another aspect of the present invention provides a method for handling errors in the transmission of Electronic Reference Services (ES) in the system of digital video, the method includes the steps to take, using the component management service request message to restore the file from the POS terminal the e broadcast the ESA from the component services control terminal; determine whether to refer again to the ESA, the interactive server for transmission to the ESA from the component management services using the request message to restore the ESA; transmit a request message for re-transmission of the ESA from the interactive server to the logical device specification ESA to generate the ESA within the component services management, if you decide to re-transfer the ESA; transmit the metadata of the ESA and the address of the terminal from the logical device specification ESA interactive server; transmit the metadata of the ESA from interactive serverone to the terminal.

In accordance with another aspect of the present invention provides a device for processing errors in the transmission of Electronic Reference Services (ES) in the system, digital video, and the device includes a component services application to receive a request message for retrieving a file from the terminal and determining whether to pass again the ESA, and component management services to generate the ESA, broadcast generated by the ESA to the terminal, receiving a request message for retrieving a file from the component service application, determine whether to pass again the ESA, and transmit metadata of the ESA to the terminal on the basis of the decision, when this component of the service application is redstavlyaet component management service request message to the recovery file and the address of the terminal, who conveyed the message of the request to restore the file, if the request message for the restoration of the file includes a request for ESA, and component management services interprets the request message for the restoration of the file, determines whether to pass again the ESA on the terminal, which has transmitted the request message for the restoration of the file, and transmits the metadata of the ESA to the terminal on the basis of the results of decision-making.

In accordance with another aspect of the present invention provides a device for processing errors in the transmission of Electronic Reference Services (ES) in the system, digital video, and the device includes a component services application to receive a request message for retrieving a file from the terminal and determining whether to pass again the ESA, and component management services to generate the ESA, broadcast generated by the ESA to the terminal, receiving a request message from a component of the service application, determine whether to pass again the ESA, and transmit metadata of the ESA to the terminal through the service component of application on the basis of the decision, the component service application component provides management services request message to the recovery file and the address of the terminal that has transmitted messages the restore request file if the request message for the restoration of the file includes a request for ESA, and component management services interprets the request message and determines whether to pass again the ESA to the terminal that sent the sent message request to restore the file.

In accordance with another aspect of the present invention provides a device for processing errors in the transmission of Electronic Reference Services (ES) in the system, digital video, and the device includes an interactive server for transmission of the ESA to the terminal, receiving a request message to restore the ESA from the terminal, interpreting a request message to restore the file and determine whether to pass again the ESA on the terminal, which has transmitted the request message to a file restore, and logical device specification ESA to generate the ESA, receiving a request for re-transmission of the ESA on the basis of the results of decision-making and transfer of metadata the ESA interactive server the interactive server transmits the metadata of the ESA that is received from a logical unit of compilation of the ESA, to the terminal.

BRIEF DESCRIPTION of DRAWINGS

The above and other features and advantages of the present invention will be better understood from the subsequent detailed description when considering in conjunction spiegelei drawings, on which:

1 is a structural diagram illustrating the structure of a mobile broadcast network, to which is applied the present invention;

2 is a structural diagram illustrating the structure of the network using the Electronic Reference Services (ES)to which is applied the present invention;

Figure 3 is a structural diagram illustrating a file structure of the network to which the present invention is applied;

4 is a flowchart illustrating the flow of messages in the file network in accordance with the present invention;

5 is a flowchart illustrating the flow of messages in the file network in accordance with the present invention;

6 is a flowchart illustrating the flow of messages in the file network in accordance with the present invention;

7 is a flowchart illustrating the flow of messages transmitting device in accordance with the present invention;

Fig is a flowchart illustrating the flow of messages to the receiving device in accordance with the present invention;

Fig.9 is a flowchart illustrating the flow of messages transmitting device in accordance with the present invention;

Figure 10 is a flowchart illustrating the flow of messages, the receiving device according to the present invention;

11 is a flowchart illustrating the flow of messages transmitting device in accordance with a third illustrative embodiment of the present invention;

Fig is a flowchart illustrating the flow of messages to the receiving device in accordance with the present invention;

Fig is a structural diagram illustrating the structure of a transmitting device in accordance with the present invention;

Fig is a structural diagram illustrating the structure of the receiving device in accordance with the present invention.

The IMPLEMENTATION of the INVENTION

Operational principles of the present invention will be described in detail below in the present description with reference to the accompanying drawings. In the subsequent consideration of the detailed description of the functions and configurations incorporated in the present description, which are well known to experts in the art, are omitted for clarity and brevity. You need to understand that the style and terminology used in this description, serve to describe and should not be construed as limiting the present invention.

According to the present invention, the request for restoration of Electronic Reference Services (ES) is sent (i.e. transferred) to the network using the query command to restore the file, CA is in the case of a regular file, if an error occurs in the transmission when the receiving terminal of the ESA. In the present description will be described in detail an implementation option, in which the network sends a restore request is accepted and re-passed the ESA, and an implementation option, in which the network is sent a unique restore request to the ESA, is taken again passed the ESA, if an error occurs in the transmission of the ESA.

1 is a structural diagram of the structure of a mobile broadcast network to which the present invention is applied.

Logical components illustrated in block form and differ in their basic functions. Blocks can be physically separated or provided on the same site maintenance. Refer to Figure 1, the component 105 Content authoring (BLU) creates sources of content, and then delivers the generated source content component 110 Service Applications (SP). Component 110 SP generates a particular service, using the source content received from the component 105 SHIN, and additional metadata required for configuring services. Component 115 Management Services (TOS) acts as a configuration service, resource allocation, initialization of the ESA, protection and so on.

12 broadcast network is a digital video streaming to handheld terminals (DVB-H - Digital Video Broadcasting - Handheld) and includes a section for broadcasting the ESA and related broadcasting alarm that is configured for network DVB-H. the Present invention will be described with reference to the DVB-h). However, the present invention is not limited to DVB-H. In the General case interactive network 125 is a cellular network. Interactive network 125 can be any network functionality or data request message from the terminal to the network. The terminal 130 is a user terminal for receiving services.

Figure 1 indicated the interfaces between components, and the above-described logical components. In General, the interfaces X-1, X-2 and X-3 are not set in interactive or two-way standard based on DVB-H. Associated with the broadcast signaling is transmitted through the interface CBMS-1 (Convergence of Broadcast and Mobile Services - Convergence of broadcasting services and mobile). The content items such as audio data, video data, files, and so on, are transmitted through the interface CBMS-2. The ESA is transmitted through the interface CBMS-3. When point-to-point transmission of the ESA is transmitted through the interface CBMS-4. When point-to-point transmission service the transmission of short messages (SMS - Short Message Service) and messaging service, multimedia messaging service (MMS - Multimedia Message Service) via the interface CBMS-5. For DVB-H-before the Chi configuration parameters of a range of services, distributed bandwidth and so on are transmitted through the interface CBMS-6. Interface CBMS-7 declares a service application or transmitted metadata. Were described only the basic functions of the interfaces. Function interfaces are not limited to the above description.

2 is a structural diagram illustrating the structure of a network using the ESA, to which the present invention is applied.

Figure 2 illustrates the architecture and logical functional blocks of components for the generation and transmission of the ESA on the basis of the underlying architecture is depicted in figure 1. Functional blocks of the source 222 the ESA and the source 224 of information acquisition are provided in the component 220 SP. Source 222 the ESA collects data corresponding to the source of the ESA, and includes information downloaded from the component 200 SIN, and other metadata. Source 224 information acquisition is a block that includes information about the acquisition. Information is provided to the component 240 CS interface CBMS-7.

Component 240 SU includes four functional blocks (i.e. blocks 242, 244, 246 and 248, which will be described below). Specialized logical device 242 compiling the ESA generates a single ESA, collecting and organizing the sources of the ESA, delivered from a specialized logic in which trojstva 242 compiling the ESA. Device 242 compiling the ESA with the possibility of self-manages information required for automatic regulation of the ESA. The scheduler 246 provisioning performs the functions of control over network resources and management services and planning. Interactive server 248 delivery is responsible for point-to-point transportation of the ESA.

Network block 260 includes block 250 network broadcasting and block 251 interactive network. Block 250 network broadcasting includes a physical device 252 compiling the ESA, the device 254 display Protocol interworking (IP) section and the device 256 display resources DVB-H, which is responsible for adapting delivered the ESA to the network DVB-H.

Terminal block 280 includes a receiving unit 282, a standard-compliant DVB-H, DVB-H signal terminal 280, interactive interfacing device 284 associated with the interactive or two-way transportation, and the device 286 processing descriptions of services and content to receive, decode and display the ESA.

Figure 3 is a structural diagram illustrating a file structure of the network to which the present invention is applied.

Figure 3 illustrates the architecture and logical functional blocks of components for the generation and transmission of the file n the basis of the underlying architecture depicted in figure 1. Component 320 SP includes a subcomponent 322 file delivery for file delivery, subordinate component 324 of the source file for the reception of the source file from the component SIN and subordinate component 326 configuring service applications, responsible for configuring services. Terminal 380 includes a subcomponent 382 consumption of content and is responsible for providing services associated with the received files. Since the other blocks in figure 3 are the same as in figure 2, for clarity, their description is omitted.

If it is determined that an error occurred in the transmission file, the terminal sends an HTTP message (Hyper Text Transfer Protocol hypertext transfer Protocol) request a file restore component 320 SP. The HTTP request message to restore the file includes information about the location of the file that will be made using the HTTP Protocol, and a part in which an error occurred in the transmission. Example HTTP request messages for the restoration of the file looks as follows.

"GET www.example.com/news/latest.3gp?ipdc-flute-

repair & SBN=5;ESI=12+SBN=20;ESI=27 HTTP/1.1"

The above example is consistent with the format "query=application*("&"[sbn_info])"defined in the document standards for the CDP Protocol (Content Delivery Protocol / Delivery content) with whom andarta DVB-CBMS (tm-cbms1167). In the above example, the application is 'ipdc-flute-repair', and sbn_info specifies the block in the file that will be taken, and specifies the identifier (ID) coding with Direct Error Correction (VEC). The above example specifies the service for which the Number of the Source Unit (SBN-Source Block Number)=5 and ID Character Encoding (ESI-Encoding Symbol ID=12, and the package for which SBN = 20 and ESI = 27.

If the delivered file is an ESA, the component responsible for point-to-point transportation of the ESA, is a component 340 SU (Management Services). Consequently, the communication between the component 320 SP and component 340 of the SU. Component 340 SU interprets the request message for the restoration of the file and must inform interactive server 248 delivery information about the terminal to receive the data from the ESA and point-to-point transmission of the ESA.

4 is a flowchart illustrating the flow of messages in the file network in accordance with the present invention.

Refer to Figure 4, when receiving the ESA has occurred in the transmission, the terminal 440 provides component 410 JV normal message request to restore the file using the alarm command request retransmission of the file, without specifying that it is the wrong file the ESA or a regular file, at step 400. Component 410 SP (Service Application) identifies the location the integrity of the file, requested for re-transmission, and determines whether the requested file is a regular file or the ESA, at step 401. For this purpose, it is preferable that the component 410 JV used to store information about the file is the application of the ESA or a regular file.

If the file requested for retransmission is the ESA, the request message for the restoration of the file is resubmitted component 420 SU, responsible for ESA, at step 402. At this stage, it is the address of the terminal from which the message was sent. Logical device 425 compiling the ENA component 420 SU interpret the message and determines that the message is a request message to the ESA, at step 403. The metadata of the ESA together with the address of the terminal is delivered on an interactive server 430, at step 404. For this logical device 425 compiling the ESA must be able to interpret the message request to restore a file using HTTP.

Using the metadata of the ESA and the address of the terminal, delivered from the interactive server 430, the ESA is sent to the corresponding terminal 440, at step 405. If the logical device 425 compiling the ESA decides not to resend the ESA, it informs 410 SP that the ESA not be resubmitted, at step 406. Component 410 JV generate a response message for the restoration of the file, the decree is living, that the ESA not be resubmitted, at step 407, and then sends (i.e. transmits) the generated response message to restore the file to the terminal 440, at step 408.

5 is a flowchart illustrating the flow of messages in the file network in accordance with the present invention.

Refer to Figure 5, when receiving the ESA has occurred in the transmission, the terminal 540 provides component 510 SP a normal message request to restore the file using the alarm command request retransmission of the file, without installing, is erroneous file the ESA or a regular file, at step 500. Component 510 SP identifies the location of the file requested for re-transmission, and determines whether the requested file is a regular file or the ESA, at step 501. For this component 410 JV must store information about the file is the application of the ESA or a regular file.

If the file requested for retransmission is the ESA, the request message for the restoration of the file is resubmitted component 520 SU, responsible for ESA, at step 502. At this stage, it is the address of the terminal from which the message was sent. Logical device 525 compiling the ENA component 520 SU interprets the message and determines that the message is a request message to the ESA, at step 503.

Stages 500-503 analogy is icny stages 400-403 figure 4. At step 504, the component 520 SU sends the metadata to the ENA component 510 SP in response to the request for re-transmission of the ESA. After this component 510 SP sends the metadata of the ESA for making the request terminal 540, in step 505. The process is carried out as in the case of normal response to a recovery file.

If a decision is made not to resend the ESA, a logical device 525 specification ESA reports component 510 SP that the ESA not be resubmitted, at step 506. Component 510 SP generates a response message for the restoration of the file, indicating that the ESA not be resubmitted, at step 507, and then sends the generated response message to restore the file to the terminal 540, at step 508.

6 is a flowchart illustrating the flow of messages in the file network in accordance with the present invention.

As shown in Fig.6, when an error occurs in the transmission of the ESA, the terminal 640 sends a unique request message to the ENA component 620 SU after detecting errors in the transmission of the ESA, distinguishable from errors in the transmission of a regular file.

Refer to Fig.6, when the terminal 640 at step 600 sends a request message to the recovery of the ESA on the interactive server component 630 620 SU, interactive server 630 interprets the request message to the recovery stage 601, delivers interpreted the second message to the logical device 625 compiling the ESA on stage 602 and receives the metadata from ESA logical unit 625 compiling the ESA at step 603.

At step 604, the interactive server 630 transmits the received metadata of the ESA in making this request, the terminal 640. If a decision is made not to resend the ESA, a logical device 625 compiling the ESA generates a response message indicating that the ESA not be resubmitted, at step 605, and sends a response message to the corresponding terminal 640, at step 606.

On the other hand, a unique request message to the ESA may vary.

Standard HTTP GET command is as follows.

GET Request_URI = GET "*"|absolute_URI|abs_path

Item absolute_URI" can be either in the format of a URL (Universal Resource Locator is a uniform resource locator), and in the format of a URN (Uniform Resource Name - a uniform resource name). This illustrative an implementation option specifies a block transfer of data to the ESA, in which the ID Container ID=1, using the account "urn:dvb:esg:cid:1"corresponds to the URN format specified by DVB, other than format recovery request file of embodiments, shown in Figure 4 and 5.

Additionally, the following query is specified using the request attribute containing the HTTP GET command.

Query = application*("&"[TOI_info])

TOI_info = "TOI" = TOI_number

TOI_number=1*DIGIT

The query is built with an associated name of the application and the required "TOI_info" to handle the HTTP GET command. "TOI_info represents pairs of the meter to indicate "TOI_number". "TOI_number" contains an integer value as the value of Object Identifier of the Transfer (TOI - Transport Object Identifier)used in the transmission of the file object during transfer files over unidirectional transport Protocol (FLUTE). When the ENA is transmitted according to the DVB-CBMS, passed option value container ESA corresponding to the block data, which is assigned to the associated value of TOI. The reason is passed the value of TOI, is that the associated container, the ESA can be updated in the process of detecting errors in the transmission of the ESA and re-transmission of the ESA, and the updated ESA container will not be accepted.

When the problem occurs throughout the network, the updated ESA may not be accepted.

Possible the following example.

GET urn:dvb:esg:cid:1?ipdc-esg-repair & TOI=16 HTTP/1.

7 is a flowchart illustrating the flow of messages transmitting device in accordance with the present invention.

In the block diagram 7 "SP" denotes a component of a service application, and "YY" denotes the component management services. At step 705, the component SU transmits the ESA. After receiving a request message for the restoration of the file at step 710, the component of the SP reads the file address from the request message and determines whether the file is a regular file or the ESA, at step 715. In the case of a regular file, the SP lane who goes to step 720 to perform the same process, for a regular file. However, in the case of the ESA, a component of the venture goes to step 725 to provide component CS request message and the address of the terminal which has transmitted this message.

At step 730 logical device composing the ESA component of the SU receives the request message and the address information of the terminal from the component JV, interprets the request message and determines that the message is a resend request for a particular the ESA. At step 735 component of the SU determines whether to pass again the ESA. If a decision is made not to resend the ESA, a component of the SU proceeds to step 740 and generates a response message indicating that the ESA not be resubmitted, and transmits the response message to the component of the JV. Then, at step 745, the component of the SP generates a response message indicating that the recovery file is not available, and sends a reply message to the corresponding terminal. However, if at step 735, the decision on re-transfer of the ESA, a logical device, compiling the ESA component of the SU provides interactive server metadata the ESA and the address of the terminal, at step 750. The interactive server component, the SU transmits the metadata of the ESA to the terminal at step 755.

Fig is a flowchart illustrating the flow of messages to the receiving device in accordance with this the brilliant invention.

Contact Fig, the terminal receives the ESA at step 805, detects an error in the transfer to the ESA at step 810, and generates an HTTP request message to restore the file to send the message in the network at step 815.

If the terminal receives the re-transmitted file, and at step 820 determines that the address of the sender of the file is displayed on the interactive server and re-transmitted file is the ESA, it proceeds to step 825 to save the ESA. However, if the re-transmitted file is not the ESA, the terminal proceeds to step 830 to detect a response message for the restoration of the file, indicating that the ESA is not transmitted again. At step 835, the terminal reads the file name of the received message and compares it with a list of network addresses of the ESA, provided in the terminal. If it is determined that the received message is a message of denial of re-transmission for a particular the ESA, the terminal notifies the user of the refusal to re-transfer at step 840.

Fig.9 is a flowchart illustrating the flow of messages transmitting device in accordance with the present invention.

In the block diagram in Fig.9, "SP" denotes a component of a service application, and "YY" denotes the component management services. At step 905, the component SU transmits the ESA. After receiving a request message to the recovery of f the La phase component 910 SP reads the file address from the request message and determines the file is a regular file or the ESA, at step 915. In the case of a regular file component of the venture moves to step 920 to perform the same process as for a regular file. However, in the case of the ESA, a component of the venture goes to step 925 to provide component CS request message and the address of the terminal which has transmitted this message.

At step 930 logical device composing the ESA component of the SU receives the request message and the address information of the terminal from the component JV, interprets the request message and determines that the message is a resend request for a particular the ESA. At step 935 component of the SU determines whether to pass again the ESA. If a decision is made not to resend the ESA, a component of the SU proceeds to step 940 and generates a response message indicating that the ESA not be resubmitted, and transmits the response message to the component of the JV. At step 945 component SP generates a response message indicating that the recovery file is not available, and sends a reply message to the corresponding terminal. However, if at step 935, the decision on re-transfer of the ESA, the logical device specification ESA component YY component provides the JV the metadata of the ESA and the address of the terminal at step 950. Component JV takes the metadata of the ESA and then transmits the adoption of the s metadata of the ESA to the terminal in the same way, what is passed to the normal file, at step 955.

Figure 10 is a flowchart illustrating the flow of messages to the receiving device in accordance with the present invention.

Refer to Figure 10, the terminal receives the ESA at step 1005, detects an error in the transfer to the ESA at step 1010 and generates an HTTP request message to restore the file to send the message in the network at step 1015.

After that, if it be received re-transmitted file at step 1020, the terminal proceeds to step 1025 to determine that the re-transmitted file is the ESA. At step 1030, the terminal stores the ESA and ESA provides to the user.

However, if the re-transmitted file is not the ESA, the terminal proceeds to step 1035 to detect a request message for the restoration of the file indicating that the file is not transmitted again. At step 1040, the terminal reads the file name of the received message and compares it with a list of network addresses of the ESA, provided in the terminal. If it is determined that the received message is a message of denial of re-transmission for a particular the ESA, the terminal notifies the user of the refusal to re-transfer at step 1045.

The block diagram for the receiving device in accordance with the second illustrative embodiment is substantially identical to the block diagram in compliance and with the first illustrative embodiment. Differences between the first and second illustrative embodiment are as follows. In the first illustrative embodiment, the terminal can detect the transmission of the ESA, checking the node address of the service, because the ESA re-transmitted from the interactive server. In the second illustrative embodiment, the terminal can detect the ESA, comparing the name and address of the received file on the network with its own list of the ESA, because the ESA is transmitted through the transmission path of a regular file.

11 is a flowchart illustrating the flow of messages transmitting device in accordance with the present invention.

Contact 11, a component of the SU transmits the ESA at step 1105, receives the HTTP request message to the recovery of the ESA from a specific terminal at step 1110, and determines whether to pass again the ESA, at step 1115.

If a decision is made not to resend the ESA, a component of the SU proceeds to step 1120 to send the reply message to restore the ESA, indicating that the ESA is not transmitted again. However, if the decision is to re-transfer the ESA, the logical device specification ESA proceeds to step 1125 to deliver metadata to the ESA and the address of the corresponding terminal on the interactive server. At step 1130, the interactive server provides information corresponding to those which the component.

Fig is a flowchart illustrating the flow of messages to the receiving device in accordance with the present invention.

Contact Fig, the receiving device receives the ESA at step 1205, and detects an error in the transmission at step 1210. A request for restoration of the ESA is sent to the network at step 1215. If at step 1220 is received re-transmitted to the ESA, the ESA is kept and is provided to the terminal at step 1225. However, if it is determined that at step 1220 is not accepted again passed the ESA, the receiver proceeds to step 1230 to determine what is the response message of restoring the ESA, indicating that the ESA is not transmitted again. The receiving device detects the failure message re-transmission for a particular the ESA, reading the address transfer, the address of the receive and file name of the received message, at step 1235, and then notifies the user with a message of refusal to re-transmit, at step 1240.

Fig is a structural diagram illustrating the structure of a transmitting device in accordance with the present invention.

Contact Fig, component 1310 SP and component 1320 SU in the network provided by section 1301 of the storage and transfer of files and section 1303 storage and transfer of metadata the ESA, respectively. Component 1310 SP and component 1320 SU is responsible for the transfer of Oba is the XM file and ESA, respectively. Section 1300 1302 or query definition to restore the ESA is provided in the component 1310 or 1320 SP, or SU. In the first and second illustrative embodiments, implementation of section 1300 of determining the restore request is provided in the component 1310 SP. In the third illustrative embodiment, section 1302 definitions provided in the component 1320 SU.

A regular file is delivered to the device 1304 forming IP packets component 1330 DVB-H, without passing through the component 1320 SU. The device 1304 forming IP packets generates from the input IP stream Transport Stream (TS) standard MPEG2 format video compression developed by a Group of experts in the field of cinema). TS MPEG2 compacted together with other MPEG2 TS corresponding to a Television (TV) stream. The device 1305 DVB-modulation modulates the multiplexed TS in the symbol OFDM (Orthogonal Frequency Division Multiplexing - seal orthogonal frequency division). The OFDM symbol is transmitted through the antenna.

Fig is a structural diagram illustrating the structure of the receiving device in accordance with the present invention.

Contact Fig, the host device 1410 DVB receives the signal via the antenna. The device 1400 DVB-performs demodulation process OFDM-demodulation for the received signal. The decompression device divides demoulin the private data on the generated IP packet and MPEG2 TS package. The processing unit performs a number of technological processes for the TS package, to enable the user to view the associated service. The device 1401 dissolution IP packet demodulates the generated IP packet to an IP stream. The IP stream is displayed on the device 1402 receive files. Section 1403 definition specifies whether the IP flow is a regular file or the ESA. If the IP flow is the ESA, the device 1404 processing the ESA receives and stores the ESA. If the IP flow is a regular file device 1405 handling ordinary files adopts and maintains a regular file.

As can be seen from the above description, the present invention may implement a procedure in which a terminal transmits a request for recovery if an error occurs in the transmission of the ESA when receiving the ESA, and receives the re-transmitted the ESA. The ESA, in which the error occurred, then it can be re-transmitted and received by the terminal.

Although explanations have been disclosed illustrative embodiments of the present invention, specialists in the art will understand that various modifications, additions and substitutions without deviation from the scope of the present invention. Therefore, the present invention is not limited to the above-described variants, but is determined in accordance with the following : f is rmulas of the invention, as well as all its equivalents.

1. The way to handle errors in the transmission of Electronic Reference Services (ES) in the system of digital video, the method comprises steps in which: accept using the service application message request to restore a file from the terminal after the broadcast, the ESA from the component services control terminal; transmit the request message to restore the file and the address of the terminal from which the message was sent the request to restore the file from the component service application component management services, if the request message to a file restore is a request for an ESA; interpret the request message for the restoration of the file in the logical device specification ESA to generate The ESA within the component services management and determining whether to pass the re ENA terminal; deliver the metadata of the ESA and the address of the terminal from the logical device specification ESA interactive server for transmission of the ESA within the component services management, if you decide to re-transfer the ESA; and transmit the metadata of the ESA from the interactive server to the terminal.

2. The method according to claim 1, which further comprises a stage on which:
determine using the service application using the address f is La, contained in the request message, whether the message request is a file recovery request the ESA or a regular file.

3. The method according to claim 1, wherein the request message to restore the file contains an HTTP message (Hyper Text Transfer Protocol hypertext transfer Protocol)used in the creation of the restore request file to a regular file.

4. The method according to claim 1, which further comprises the steps that: deliver information about the decision from a logical device specification ESA component of the service application, if you decide not to resend the ESA to the terminal; and generate a response message that contains information about the decision; and transmit the generated response message from the component service application on the terminal.

5. The method according to claim 4, which further comprises a stage on which to determine, using the terminal, denied whether the re-transfer of the ESA, using the address transfer, the prisoner in the response message.

6. The way to handle errors in the transmission of Electronic Reference Services (ES) in the system of digital video, the method contains the steps to take using the service application message request to restore a file from the terminal after the broadcast, the ESA from the component services management at term is; transmit the request message to restore the file and the address of the terminal from which the message was sent the request to restore the file from the component service application component management services when the request message to a file restore is a request for an ESA; interpret the request message for the restoration of the file in the logical device specification ESA to generate the ESA within the component services management and determining whether to pass the re ENA terminal; deliver the metadata of the ESA and the address of the terminal from the logic device composing the ESA component of the service application, if you decide to re-transfer the ESA; and transmit the metadata of the ESA from the component service application a terminal.

7. The method according to claim 6, which further comprises a stage on which you define using the official application whether the message is a request to restore a file request to the ESA or a regular file, using the address of the file is enclosed in the request message.

8. The method according to claim 6, in which the request message to restore the file contains an HTTP message is used when creating a restore request file to a regular file.

9. The method according to claim 6, which further comprises the steps that: deliver information about the decision from oricheskogo devices composing the ESA component of the service application, if you decide not to resend the ESA; and generate a response message that contains information about the decision; and transmit the generated response message from the component service application on the terminal.

10. The method according to claim 9, which further comprises a step, which is determined using terminal, denied whether the re-transfer of the ESA, using the network address and name of the file enclosed in the response message.

11. The way to handle errors in the transmission of Electronic Reference Services (ES) in the system of digital video, the method comprises steps in which: accept using the component services management request message to restore the file from the terminal after the broadcast, the ESA from the component services control terminal; determine whether to refer again to the ESA, the interactive server for transmission to the ESA from the component management services using the request message to restore the ESA; transmit a request message for re-transmission of the ESA from the interactive server to the logical device specification ESA to generate the ESA within the component services management, if you decide about sending the ESA; transmit the metadata of the ESA and the address of the terminal from the logical device specification ESA interactive server and transmit metadon the E. the ESA from the interactive server to the terminal.

12. The method according to claim 11, in which the terminal detects an error in the transmission of the ESA and transmits the request message to restore the file.

13. The method according to claim 11, in which the request message to restore the file contains an HTTP message.

14. The method according to claim 11, which further comprises steps in which: (I) generating a response message that contains information about the decision if the decision is made not to resend the ESA, and transmit the generated response message from the logical device specification ESA on the terminal.

15. The method according to 14, in which the terminal determines denied if re-transfer of the ESA, using the broadcast address, the address of the receive and file name, enclosed in the response message.

16. A device for processing errors in the transmission of Electronic Reference Services (ES) in the system, digital video, and the device comprises: a component of the service application to receive a request message for retrieving a file from the terminal and determining whether to pass again the ESA; and component management services to generate the ESA, broadcast generated by the ESA to the terminal, receiving a request message for retrieving a file from the component service application, determine whether to pass again the ESA, and transmit metadata of the ESA to the terminal on the basis of the decision, when the volume component of the service application component provides management services request message to the restore file and the address of the terminal, if the request message to a file restore is a request for an ESA, and component management services interprets the request message for the restoration of the file, determines whether to pass again the ESA to the terminal, and transmits the metadata of the ESA to the terminal on the basis of the results of decision-making.

17. The device according to clause 16, in which the component management services includes: logical device specification ESA to generate the ESA, receiving a request message from a component of the service application, and determining whether to pass again the ESA; and the interactive server for transmission generated by the ESA to the terminal, receiving the metadata from ESA logical device specification ESA and transfer the received metadata of the ESA on the terminal.

18. The device according to clause 16, in which the component service application determines whether the request message to a file restore request to the ESA or a regular file, using the address of the file is enclosed in the request message for the restoration of the file.

19. The device according to clause 16, in which the request message for the restoration of the file is an HTTP message is used when creating a restore request file to a regular file.

20. The device according to 17, wherein the logical device specification ESA delivers information about the decision component of the service application, the EU is and decided not to resend the ESA; and component service application generates a response message containing information about the decision, and transmits the generated response message to the terminal.

21. The device according to claim 20, in which the terminal determines denied if re-transfer of the ESA, using the address transfer, the prisoner in the response message.

22. A device for processing errors in the transmission of Electronic Reference Services (ES) in the system, digital video, and the device comprises: a component of the service application to receive a request message for retrieving a file from the terminal and determining whether to pass again the ESA; and component management services to generate the ESA, broadcast generated by the ESA to the terminal, receiving a request message from a component of the service application, determine whether to pass again the ESA, and transmit metadata of the ESA to the terminal via the service application on the basis of the decision, when this component of the service application component provides management services request message and the address of the terminal that sent the request message if the request message to a file restore is a request for an ESA, and component management services interprets the request message and determines whether to pass the re ES in Ter the Inal.

23. The device according to item 22, in which the component management services includes: logical device specification ESA to generate the ESA, receiving a request message from the component service application and determine whether to pass again the ESA, and transfer of metadata the ESA component of the service application, if you decide to re-transfer the ESA; and the interactive server for transmission generated by the ESA to the terminal.

24. The device according to item 22, in which the component service application determines whether the request message to a file restore request to the ESA or a regular file, using the address of the file is enclosed in the request message.

25. The device according to item 22, in which the request message to restore the file contains an HTTP message is used when creating a restore request file to a regular file.

26. The device according to item 23, in which: logical device specification ESA delivers information about the decision component of the service application, if you decide not to resend the ESA; and component service application generates a response message containing information about the decision, and transmits the generated response message to the terminal.

27. The device according to p, in which the terminal determines denied if re-transfer of the ESA, using the network the address and name of the file prisoners in the response message.

28. A device for processing errors in the transmission of Electronic Reference Services (ES) in the system, digital video, and the device includes: an interactive server for transmission of the ESA to the terminal, receiving a request message to restore the ESA from the terminal, interpreting a request message and determining whether to pass again the ESA on the terminal, which has transmitted the request message; and a logical device specification ESA to generate the ESA, receiving a request for re-transmission of the ESA on the basis of the results of decision interactive server and transfer the metadata ESA interactive server, the interactive server transmits the metadata of the ESA taken from the logical device specification ESA on the terminal.

29. The device according to p, in which the online server and the logical device specification ESA provided in the component management services.

30. The device according to p, in which the terminal detects an error in the transmission of the ESA and transmits the request message.

31. The device according to p in which the request message to restore the file contains an HTTP message.

32. The device according to p in which the logical device specification ESA generate a response message that contains information about the decision, if the decision is N. in order to resend the ESA, and transmits the generated response message to the terminal.

33. The device according to p, in which the terminal determines denied if re-transfer of the ESA, using the broadcast address, the address of the reception and the name of the file contained in the response message.



 

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30 cl, 10 dwg

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10 dwg

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29 cl, 6 dwg

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30 cl, 10 dwg, 5 tbl

FIELD: physics; communications.

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12 cl, 9 dwg, 2 tbl

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60 cl, 9 dwg

Watermark embedding // 2376708

FIELD: physics; communications.

SUBSTANCE: invention relates to a novel method of embedding a watermark into an information signal, according to which an information signal (12) is first converted from time-domain presentation (22) to spectral/modulation spectral presentation (30). The information signal is then keyed in the spectral/modulation spectral presentation (30) depending on the watermark (14) which should be embedded so as to obtain a modified spectral/modulation spectral presentation, and the watermark embedded signal (16) is then formed based on the modified spectral/modulation spectral presentation.

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29 cl, 5 dwg

FIELD: physics; communications.

SUBSTANCE: method and device for supporting smooth and uninterrupted handover to a terminal, which receives digital broadcast in a digital broadcast system, are disclosed. The method for handover using a network node involves steps on which a handover request message is received from a terminal, where the said message contains time for assessing signal quality, service ID and cell ID. The terminal receives broadcast from the servicing cell; quality of signals of candidate cells, which provide a service which corresponds to the service ID, is assessed; parametre of the handover candidate is calculated based on the result for assessing quality of candidate cells, where the said parametre indicates time which is accessible for handover with respect to corresponding candidate cells; and the parametre of the handover candidate is sent to the terminal.

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28 cl, 11 dwg, 1 tbl

FIELD: physics; acoustics.

SUBSTANCE: invention relates to sound broadcasting and sound accompanying in television and can be used in designing sound broadcasting networks. Data transmission system for sound broadcasting in digital format with compression on main channels is designed for transmitting analogue signals for sound broadcasting to main channels in high-frequency transmission systems, including a reference circuit for the structural circuit of main sound broadcasting with a terminal transmitting point, in which signals are modulated to transmit them into the high-frequency spectrum of the transmission system, and a terminal reception point, where high-frequency signals are demodulated to extract the sound broadcasting signal. The reference circuit, which is designed for transmitting sound broadcasting signals over the main network in digital format in a standard bit transfer rate of 2048 kbps, contains 1 to 2 stereo channels or, respectively from two to four monochannels, corresponding to analogue monochannels with frequency band of 40 to 15000 Hz transmit from more than six channels in digital format, corresponding to analogue channels with frequency band of 40 to 15000 Hz, through a method of compressing the frequency spectrum and introducing quantisation levels into the bit transfer rate of digital transmission systems.

EFFECT: increased number of transmission channels in bit transfer rate of 2048 kbps.

4 dwg

FIELD: information technology.

SUBSTANCE: invention relates to buffering packets of a media stream during transmission from a transmission device to a receiving device. Media packets are generated from at least one type of media information in a stream generator; at least one transmission frame is generated based on transmitted media packets; transmitted packets are generated from at least one transmission frame and a transmission schedule is generated for transmitted packets. In addition, the first and second steps of hypothetical decoding are executed. The first step of hypothetical decoding is executed in accordance with the transmission schedule, and involves buffering the transmitted packets in accordance with the transmission schedule in the first buffer for hypothetical decoding and output of packets from the first buffer for hypothetical decoding based on the transmission frame. The second step of hypothetical decoding involves controlling occupance rate of the first and second buffer for hypothetical decoding by controlling at least one of the following: operation of the stream generator, generation of at least one transmission frame, transmission schedule.

EFFECT: more efficient buffering of media stream packets.

20 cl, 7 dwg

FIELD: physics, communication.

SUBSTANCE: invention is related to technologies of content recording. Method is suggested for content recording, where the following takes place: record document is received through the network, which describes content element, but does not describe whether content element is available for recording and how content element must be recorded, moreover, record document is generated from text description of content element and includes one or more word from mentioned text description, besides text description does not include previously configured record document, electronic program reference (EPR) data are requested to identify whether content element described in record document is available for recording without user intervention, if yes - how this content element must be recorded; data is checked on client status, which described conventional client access rights, in order to identify whether content element recording is permitted for this client with application of digital rights control; and if content element is available and recording is permitted, then link is introduced into record list, in order to cause realisation of this content element recording without user intervention.

EFFECT: improved functional capabilities available to user, such as possibility to change over from old client to new client, without manual replacement of client status data from old client to new client, remote initiation of content record without provision of connection with the client itself.

31 cl, 8 dwg

FIELD: technology for simultaneous broadcasting radio-transmission of signals with analog modulation and of digital transmission signals.

SUBSTANCE: in accordance to the invention, amplitude-modulated signal of simultaneous broadcasting radio-transmission, which incorporates digital transmission signal and analog transmission signal in one transmission channel, is characterized by the fact that one side band of carrier of signal of simultaneous broadcasting transmission is modulated by digital transmission signal, and another band is modulated by correcting signal, which ensures provision of analog transmission signal of waveform envelope for demodulation. Generator of amplitude-modulated signal is intended to be used for generation and transmission of aforementioned signals.

EFFECT: creation of method for simultaneous transmission of digital and analog signals through a single channel.

4 cl, 2 dwg

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