81 results about "Unidirectional network" patented technology

A network isolation apparatus is provided that permits data to be sent to a remote computer or network without a return path so that the isolated sensitive network may not be compromised. The isolation device spoofs the network so that the network believes it has a fully functional external connection. The invention has a first media converter for receiving data from a workstation on a sensitive network; this data is then passed to a second media converter and then transmitted to a remote computer. An optical signal generator sends signals to the workstation to imitate a standard transmit and receive connection, and also sends signals to the second media converter to imitate a standard transmit and receive connection. No physical connection exists for the remote computer workstation to compromise the sensitive network.

Methods, a client entity, network entities, a system, and a computer program product perform authentication between a client entity and a network. The network includes at least a bootstrapping server function entity and a network application function entity. The client entity is not able to communicate with both of the network entities in a bidirectional manner. The 3GPP standard Ub reference point between the client entity and the bootstrapping server function entity is not utilized for authentication purposes, such as authentication using GAA functionality for unidirectional network connections.

A system and method for broadcasting multicast transmissions of data content over a unidirectional network between a single server that executes a server process application and a plurality of clients, each of which executes a client process application. On the server side, the server includes a client emulator that executes a client emulator process application to convert unicast form data to multicast form data and on the client side each client operates in response to an emulator that executes a server emulator process application. Transmission of the data content takes place between the client emulator process on the server side and the server emulator process on the client side. Each client also includes and operates a client process application that receives data content from the server emulator process on the client side. On the client side, each client can have its own server emulator process or there can be a common server emulator process used by the client process application of all of the clients or groups of clients using a dedicated server emulator process for each group. The invention achieves multicast broadcast over a unicast network replacing the need for bi-directional networks and eliminates the need for a back channel and the need to send multiple copies of the data, thereby reducing the need for bandwidth and solving the problem of scalability of existing systems to broadcast multicast.

The invention discloses a method and a device for transmitting data in a unidirectional network. The method comprises the following steps: if original data to be transmitted are incontinuous medium information, grouping the original data into a data packet with fixed length at a transmitting end, carrying out outer code coding on the grouped data packet, then carrying out inner code coding on thedata packet after outer code coding and afterwards, delivering the data packet after inner code coding into a transmission path; judging the type of the medium information according to the load type of coding data at a receiving end; and if the type of the medium information is the incontinuous medium information, carrying out inner code decoding on the data packet received from the transmission path and then carrying out outer code decoding on the data packet after inner code decoding to obtain the original data. By applying the invention, the end-to-end reconstruction capability of data transmission is reinforced, and the reliability of the data transmission of the unidirectional network is enhanced, thereby achieving the aim of enhancing the communication quality of the unidirectional network effectively.

Fault-tolerant Ethernet is provided through the use of special interfaces providing end-devices with duplicate ports that may be alternatively enabled with the same network address in the event of a fault detected by loss of the message from a beacon device. Unidirectional network errors in the direction from the end-device to the beacon devices are detected through a path check message from the end-device to the beacon device. Multiple faults may be accommodated without network interruption by adding top-level switches without increasing the number of ports on the end-devices by cross connecting a lowest level of switch.

A parallel memory configured to enable access to a table with aligned and equidistant components constituting a vector of N components. The memory (1) is organized as M memory banks (8). Each memory bank (8) includes an address calculator. The memory (1) also includes a unidirectional network (6) configured to carry out a permutation of the N components of the vector being accessed and to carry out a translation by a specified value t of the components of the vector.

The invention discloses a security certification system based on a unidirectional transmission broadcast television network. The security certification system comprises a data source server end, a signature encryption and certificate management system and a data receiving end, and solves several security problems that the broadcast television network currently faces. On one hand, secure and reliable certification is provided for secure data transmission of a broadcast television server side, on the other hand, illegal operations that files are tampered, replaced, maliciously replaced and the like in the transmission process of the unidirectional network are effectively prevented, and meanwhile television advertisements are also prevented from being replaced by criminals with profitable advertisement of the criminals.

A system for securing contactless communications with an external device is provided. The system has an operating device for performing at least one of production and testing operations. A controlling device is coupled operationally to the operating device; a receiving device configured to receive first data from the external device. A unidirectional network is configured to allow communication of the first data from the receiving device to the controlling device. The controlling device is configured to control the at least one of production and testing operations performed by the operating device on the basis of the first data.

The invention discloses a method for generating an index and a method and a device for receiving and sending a media file based on the index. A front end generates an application index and a network index according to description information of a content of the media file; a broadcasting server collects user subscribing information or user behavior information by a bilateral network from a terminal so as to regulate the application index, the network index and a content of the broadcasted media file; and the content of the broadcasted media file and the regulated network index and applicationindex are packaged into a transmission data message and the transmission data message is sent to the terminal by an unilateral network. Compared with the prior art, the invention increases a feedbackmechanism between front end equipment and terminal equipment, sufficiently utilizes the existing unilateral and bilateral coexistence transmission network and can make the front end carry out real-time regulation on the broadcasted media content file according to the requirement of a user.

The invention discloses a machine reading understanding method for guiding attention based on knowledge. The method comprises the following steps of: (1) obtaining a word vector of a sequence by usinga pre-trained word embedding matrix; (2) modeling the context information of each word in the text by using a bidirectional GRU network; (3) inputting the context representation of the question intoa one-way GRU network as an initial hidden layer state, wherein the GRU network iteratively executes a search step by using an attention-based look-back mechanism so as to collect information possiblyused for predicting answers in the article; (4) taking external knowledge as long-term memory, adding the external knowledge into a replaying mechanism, guiding the focus of attention in the replaying process, and redistributing attention scores by the model; and (5) obtaining a predicted answer at the output end of the one-way GRU network through the pointer network. The method is an end-to-endmodel, and data preprocessing, except for pre-trained word vectors, in an unlabeled corpus set is not needed, so that the method can be widely applied to reading understanding of different languages and fields.

The invention belongs to a field of network data transmission, which provides a method and a device for sending and receiving information based on a unidirectional network. The information sending method comprises the following steps: the information data is generated to corresponding index information of information data and the index information of information data is packed into transport stream; the packed index information of the information data is sent to a digital terminal equipment; the information data is sent to the digital terminal equipment according to the index information of the information data. Based on the data carousel, object carousel or the expanding technology in the prior art, the invention adopts the method that first sending the index information of the information data, then necessary index information is selected by users and the corresponding information data with the index information is obtained in the back stage of the digital receiving terminal and stored in the digital receiving terminal so as to realize the effect of little occupation of bandwidth and a large quantity of effective information data can be sent to the users.

The invention discloses a data transmission method and a data transmission device in a unidirectional network, which are used in the field of network communication. The method provided by the invention comprises the following steps: obtaining a frame of message in a bidirectional network, and extracting key field information in the message; matching the feature information of the target machine with the key field information, and when the feature information of the target machine can be matched with the key field information, identifying a protocol name adopted by the message; responding to acorresponding response message according to the protocol name; when protocol name is TCP, if yes, identifying the state identifier of the TCP; Treceiving a message sent by a one-way network end, carrying out corresponding state change, comparing a TCP serial number and an expected TCP serial number received in the message, responding to an ACK confirmation message if the serial numbers are equal,calculating the checksum of a TCP data part of the message, combining a new UDP message, and sending the new UDP message to a target machine of the one-way network end. According to the method, the problems of poor real-time performance and low transmission speed of a traditional data ferrying method are solved, and the transmission reliability and real-time performance are improved on the premiseof ensuring the data transmission safety.

The invention discloses a video stream transmission system based on visible light one-way network isolation, and relates to the technical field of visible light transmission. The system comprises a network unidirectional isolation control system, an intranet system and an extranet system. The network one-way isolation control system adopts a virtual IP to perform inter-network one-way transmissionon the intranet system and the extranet system after being authorized. According to the network one-way isolation control system, inter-network one-way transmission is carried out on the intranet system and the extranet system through the virtual IP, one-way network isolation transmission of visible light communication videos is achieved, and the visible light one-way network isolation transmission efficiency is improved.

The present invention relates to a module and a process for inter-user communication across a bidirectional network. The module comprises a unit for triggering recording, in a storage space of a server, of information received by the server from users via the bidirectional network, and a unit for controlling a broadcasting of data stored in the storage space to the users, via a broadcasting network. It also comprises a unit for monitoring connection of the users to the server via the bidirectional network. Moreover, the unit for triggering recording and/or the unit for controlling broadcasting is designed to operate as a function of the users connected to the server which are identified by the monitoring unit. Advantageously, the bidirectional network is temporary and the broadcasting network is a permanent unidirectional network. Applications to P2P technology, in particular for television.

The invention discloses a one-way network bilateral data synchronization system and method based on log analysis. The system comprises an intranet service database, an intranet AntBee, an extranet message queue, an extranet AntBee and an extranet service database, wherein the intranet service database has a log opening function; the log is read to obtain log information; the intranet AntBee has afunction of configuring the connection of an intranet service database and an extranet service database; an extranet interface is called to generate timing operation in an extranet AntBee; the intranet AntBee can produce timing operation by configuring an intranet and extranet service database connection and can package the time operation into a massage to push the massage to the extranet messagequeue, and the intranet AntBee obtains the message by monitoring the message queue and unpacks the message to update data of the intranet service database, and the extranet service database has a logstarting function and reads a log to obtain log information. The bidirectional synchronization of the database data of the intranet and extranet unidirectional network is realized.

The invention discloses a new media multi-business front system based on unidirectional network configuration and a realization method. The method comprises steps that business of each front business system is managed by a business level, business processing is independently accomplished by the corresponding systems, and broadcast-needing content is sent to a business gathering management level for processing; processing and audition of various gathered business data are carried out by the business gathering management level, the processing result is then sent to a business data publishing level; different broadcasting modes are employed by the business data publishing level according to different data types, after business data processing is accomplished by the business data publishing level, the processing result is sent to a multiplexer set, through a traditional sending channel, the content of the business system is broadcasted to the terminal; the return information is returned by a terminal user through a return gateway to the business level. The method is advantaged in that new media business access is supported, only through adding broadcast and return adaption function modules at an original communication interface, influence on an original business system is small, standard enforcement is realized, the method is convenient, wide applicability is realized, and high practical values are realized.

The invention relates to a method for transmitting securities information by using a unidirectional network of a digital TV and a system thereof, in particular to data transmission of the securities information in a digital TV network, which belongs to a field of data communication of the securities information. The method includes the processes: a front terminal recodes the received transaction data; then, private data is encapsulated and packed into a TS and after encapsulated, the TS is transmitted to a terminal through a network; after the terminal receives the data, decapsulation and decoding are carried out by the terminal for the received data and then the obtained data is put into use. The system consists of the front terminal and the terminal; wherein, the front terminal consists of a unit for encoding the securities information and a unit for transmitting the securities information while the terminal consists of a unit for receiving the securities information. In the method for transmitting the securities information by using the unidirectional network of the digital TV and the system thereof, on the premise that the saving of bandwidth is taken into consideration, the transaction data is recoded in the front terminal and then the private data is encapsulated and then packed into the TS; besides, the method for transmitting the securities information has the advantages of small occupied bandwidth and favorable receiving effect.

The invention provides a data transmission method and device, data processing equipment and a computer storage medium, and belongs to the technical field of cloud security. In the embodiment of the invention, the data processing equipment in a public network receives a request message for acquiring unidirectional network data sent by a target object, and stores the request message in a shared storage area; the data processing equipment in the public network receives encrypted data corresponding to the request message pushed by the data processing equipment in the unidirectional network; afterreceiving the random key sent by the target object, the data processing equipment in the public network decrypts the encrypted data according to the random key to obtain original data, and returns theobtained original data to the target object. According to the data transmission mode provided by the embodiment of the invention, the encrypted data in the one-way network is pushed to the public network, the random key is pushed to the user, and the encrypted data and the random key are pushed separately, so that the security of data transmission from the one-way network to the public network can be improved.