53 results about "Hybrid protocol" patented technology

A system, apparatus and method for an efficiently performing address lookups and switching for computer networks is disclosed. The present disclosure provides for address translation between network devices utilizing different protocols. The system, apparatus and method described herein provide for address translation for encapsulated communications to enable mixed protocol communications using a network switch fabric system.

Automated test equipment capable of performing a high-speed test of semiconductor devices is presented. The automated test equipment comprises a system controller for controlling a test program, wherein the system controller is coupled to a bus. The tester system further comprises a plurality of modules also coupled to the bus, where each module is operable to test a plurality of DUTs. Each of the modules comprises a tester processor coupled to the bus and a plurality of configurable blocks communicatively coupled to the tester processor. Each of the configurable blocks is operable to communicate with an associated DUT and further operable to be programmed with a communication protocol for communicating test data to and from said associated device under test.

A device for use in, and system for, a vehicle-to-vehicle (V2V) communication and safety system that uses a hybrid combination of TDMA and CSMA protocols. The synchronized TDMA frame is partitioned into three prioritized time interval classes with differing priorities and dynamically changing sizes based on demand of higher-priority messages. The TDMA portions of a repeating time interval uses self-assigned dense time slots for high-priority safety messages, with one portion for emergency vehicles and road-side units. The CSMA protocol uses remaining available time for lower-priority and overflow messages. The higher-priority time interval classes change size dynamically based on the number of current transmissions. Modulation schemes, but not data link formats, use existing Standards. Embodiments include optimized traffic flow and signal timing.

Automated test equipment capable of performing a high-speed test of semiconductor devices is presented. The automated test equipment comprises a system controller for controlling a test program, wherein the system controller is coupled to a bus. The tester system further comprises a plurality of modules also coupled to the bus, where each module is operable to test a plurality of DUTs. Each of the modules comprises a tester processor coupled to the bus and a plurality of configurable blocks communicatively coupled to the tester processor. Each of the configurable blocks is operable to communicate with an associated DUT and further operable to be programmed with a communication protocol for communicating test data to and from said associated device under test.

A system, apparatus and method for an efficiently performing address lookups and switching for computer networks is disclosed. The present disclosure provides for address translation between network devices utilizing different protocols. The system, apparatus and method described herein provide for address translation for encapsulated communications to enable mixed protocol communications using a network switch fabric system.

A method for providing wireless communication between a source node and a destination node in a wireless network wherein the wireless network uses a time division multiple access (TDMA) protocol. One or more dedicated TDMA transaction timeslots are arranged in a superframe. The superframe includes at least one dedicated transaction slot forming a hybrid protocol with two or more shared transaction slots per superframe. The method is of particular advantage when practised with a WirelessHART protocol wireless sensor network and when used for monitoring and control equipment and processes in an industrial installation. A computer program, and a wireless node and a wireless network using the inventive method are also disclosed.

The invention discloses a TCP / UDP (Transmission Control Protocol and User Datagram Protocol) mixed protocol based streaming media wireless self-adaptive transmission method. The reliable transmission of a TCP is combined with the small transmission overhead, the high speed and the high efficiency of the UDP, the encapsulation is performed on video and audio data through a fixed length of data packet header, and the hierarchical transmission is performed through different channels according to different data frame types. A receiver is provided with a data packet life cycle threshold vale and a feedback information packet is sent to a sender if the timeout of the data receiving is produced. The sender starts to discard non-critical frame data of the unreliable transmission channels and accordingly the channel congestion is alleviated, the audio and video delay is reduced, and the real-time performance of the streaming media playing is ensured. In addition, the dynamic adjustment on the coding rate of the sender is implemented by an average code rate weighed control algorithm according to the channel transmission data received by the receiver and accordingly the good self-adaption to the changes of the wireless channel bandwidth can be achieved.

A click to talk system for use in a data network is disclosed. In response to a user selection on a browser, a click to talk server bridges an IP capable voice device to the browser by translating between data network protocols. Additionally, a media server may be manually or automatically contacted to provide a media stream simultaneously with a voice connection between a client computer running the browser and the IP capable voice device.

The invention discloses a rule engine-based hybrid protocol Internet of Things platform. The overall architecture of the platform comprises an access layer, a persistence layer, a service layer and anapplication layer from bottom to top, wherein the access layer realizes hybrid protocol access by using an MQTT protocol and a low-power wide area network LPWAN protocol represented by a LoRaWAN protocol, the equipment accessed by the MQTT protocol and the LoRaWAN protocol uploads acquired equipment uplink data to an upper layer, receives downlink data transmitted by the upper layer and forwardsthe downlink data to the equipment; the application layer is mainly used for providing platform functions for users through hyper text transport protocol (HTTP) interfaces, and the functions include user management, product management, equipment management, rule engine configuration and online debugging. The invention provides the rule engine-based hybrid protocol Internet of Things platform, andaims to provide a solution capable of rapidly developing Internet of Things applications, reducing Internet of Things development cost and improving equipment management capability for small and medium-sized entrepreneurship enterprises.

A method for a user to authenticate to a first computer on a computer network comprises: a) a user authenticating himself to the first computer with a symmetric-type password unknown to the first computer and by means of a hybrid protocol; and b) if the authentication is accepted the first computer then sends a digital certificate to the user, for subsequent use by the user to authenticate himself by means of the digital certificate to the first computer or other computers.

The invention discloses a distributed gateway system in a 4-6-4 hybrid protocol network and an access method. The method comprises the steps that one or more distributed CLAT (Customer Side Translator) gateways receive a first access request to an IPv4 (Internet Protocol Version 4) server located on a network address translation PLAT (provider side translator) gateway side initiated by an IPv4 client; a first IP (Internet Protocol) address of IPv4 in the first access request is converted to a second IP address of IPv6 (Internet Protocol Version 6) according to an address conversion rule in the CLAT gateways; and a second access request to the PLAT gateway is initiated based on the second IP address of the IPv6; the second access request also carries a third IP address of the IPv4 and a third port; and the third IP address and the third port conduct pre-mapping formation on the first IP address of the IPv4 and a first port corresponding to the first IP address according to a preset address mapping rule via the CLAT gateways. The problems of gateway server pressure and network delay caused during an application-level gateway processing course are solved.

A method of controlling the data rate of transmitting data packets in a wireless communications system comprising a transmitter communicating with at least one receiver by means of radio communication signals employing at least one automatic repeat request (ARQ) or a hybrid ARC protocol. The data packets are allocated to at least one logical channel which is mapped on at least one physical downlink communication channel for transmission from the transmitter to the receiver. The receiver transmits signaling information relating to the receipt of said data packets in an uplink feedback channel to the transmitter. According to the invention, the data rate control is based on the receiver's current capability to process the amount of received data packets comprised in the communication signals. Further, the signaling information in the uplink feedback channel comprises a request to control the data rate in at least one logical channel. In addition, the invention relates to a receiver and transmitter adapted to carry out the control method.

According to the invention, on carrying out the configuration of connections in a hybrid network, comprising PSTN and IN networks, messages generated in the PSTN network are transformed into IN network messages before a decentralised interruption of the connections in the IN network occurs by deactivation of the unidirectional transmitter at the end of the connections and before the type of the configuration makes activation of the transmitter in the IN network necessary. The performance features 3PTY and CONF of the PSTN network can advantageously also be provided for interworking with IN networks, such that no useful information is transmitted in the IN networks so long as a connection in a conference is isolated.

The invention discloses a video transmission method of uniform output of mixed protocol data; the practice environment comprises a subordinate data access platform or device, a data transfer server and a client; the subordinate data access platform or device receives a video flow collected by a subordinate device and sends to a data transfer server; the video data transmission method includes access of private data by a TCP protocol method and access of national standard data by UDP protocol; the data transfer server receives video data sent by the subordinate data access platform or device; the private data is accessed by the TCP protocol method; the national standard data is accessed by UDP protocol method; the client selects the video transmission method and sends a request to the data transfer server according to current application scene and network load condition, acquires the video data and perform the encoding display operation. The video transmission method of uniform output of mixed protocol data is simple to realize, low in cost, and good in applicability.

The invention discloses a hybrid protocol-based intelligent power distribution network wireless communication system. The system comprises a terminal node, a power distribution network gateway and a wired network, wherein the terminal node is controlled by an intelligent power distribution network control center; the wired network is connected with a transformer substation; the terminal node is a far terminal unit (FTU) of a power distribution substation; the wired network of the transformer substation communicates with the power distribution network gateway through a wired network or a wireless network; the power distribution network gateway communicates with the terminal node through wireless communication. Self management, self configuration and self optimization functions of the wireless communication system are realized, the wireless communication system supports switching functions among a plurality of wireless protocols, such as zigbee , 802.11, WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronization Code Division Multiple Access), TD-LTE (Time Division-Long Term Evolution) and FDD-LTE (Frequency Division Duplex-Long Term Evolution), supports a hierarchical management function on QoS (quality of service) of services, meets the requirements of remote signaling, remote measurement and remote control of a power distribution network, supports a data fusion function, and reduces redundancy and data transmission amount.

A method for routing calls between a third party telecommunications device (“TD”) and a subscriber TD associated with a primary service and a second line service (“SLS”) involves associating the SLS number of the subscriber, the primary number of the subscriber and the primary number of a third party via a common relationship number. Calls directed from a third party to the SLS number of a subscriber are routed to an SLS platform and redirected to the subscriber TD. Calls directed from the subscriber TD to the third party use the relationship number to route the call to the SLS platform. The combination of the primary service number and the relationship number identifies the third party number for call completion. Calls can be directed to and from an SLS number of a subscriber TD using a combination of protocols such as ISUP, CAP and SIP.

The invention provides a multistage network topology intelligent discovering and generation method and system based on hybrid protocols. The protocols adopted by the invention are mainly Fping and SNMP protocols, wherein the Fping protocol is mainly used for rapidly discovering equipment connected into or operated in a network, then the SNMP protocol is used for obtaining the information of the equipment, and the cascade relations or monitoring information of the network equipment are determined mainly by the obtained information. The multistage network topology intelligent discovering and generation method and system has the advantages that the high efficiency is realized in such a manner that according to a comparison result of ping and tracert protocols, the Fping protocol is used for rapidly discovering equipment connected into or operated in the network, and the time efficiency for discovering the equipment is improved; and the intelligence is realized in such a manner that the SNMP protocol is used for realizing the intelligence and automation of the network topology structure, and is further combined with system resource monitoring software to grasp the state of the whole computer network in real time.

A method for servicing an SLS based communication request between a third party TD that is situated inside of the locality serviced by its primary service provider network and a TD associated with an SLS subscriber that is situated outside of the locality serviced by its primary service provider network involves associating the local SLS phone number of the subscriber, the primary number of the subscriber and the primary number of a third party via a common relationship number. Calls directed from a third party to the SLS phone number of a subscriber are routed to an SLS platform and redirected to the subscriber TD. Calls directed from the subscriber TD to the third party use the relationship number to route the call to the SLS platform. The combination of the primary service number and the relationship number identifies the third party number for call completion.

The invention discloses a method for separating unknown multi-protocol mixed data frames into single protocol data frames. The method comprises the following steps that firstly, binary data are converted into a hexadecimal format, and n rows and m columns of mixed unknown protocol data frames are input; secondly, an approximate value K of type numbers of the input unknown protocol data frames is calculated; thirdly, a K value is designated by using a K-means algorithm, clustering is carried out, and n class clusters are obtained; fourthly, the good or bad of each class cluster is assessed by using a class cluster assessing algorithm based on entropy; fifthly, the class clusters with good clustering effects are placed into a result set, fingerprint information of the type is extracted, and the fingerprint information is stored in a fingerprint database. According to the method for separating the unknown multi-protocol mixed data frames into the single protocol data frames, the problems that the calculation of the approximate value of the mixed protocol type number K is difficult, the separation of different protocol areas is difficult, the assessing accuracy on protocol frame class clusters is low, and the visual and effective effects are difficult to achieve are solved.

In a mixed-protocol multiple-processor cache coherence computer system one processor may support read-only and read-write lists while another processor may support only read-write lists. Data copied to a cache is called a cache line while a copy of the same data remaining in memory is called a memory line. A memory line is stale when its associated cache line has been modified. The main memory of the system always points to the processor at the head of each list and includes indications of fresh and stale memory line states. The present invention deletes the head entry of a read-only cache-sharing list where the head entry supports read-only operations and the next-list entry supports only read-write operations. The head of the list informs the next-list entry that the next-list entry is about to become the head of the list. The main memory then repositions its head-pointer to the next-list entry and changes the memory state from fresh to stale. The head of the list then informs the next-list entry that the deletion is complete and the old head is thus deleted from the list.

The invention discloses an operation and maintenance auditing system hybrid protocol agent system and method. The invention relates to the field of protocol ports. The method comprises the following steps of: directly matching a decoded protocol field and comparing each character protocol or graphic protocol or plaintext protocol for a data packet of an unknown protocol sent by a client of an operation and maintenance auditing system, and directly determining the data packet matched with a corresponding protocol as an encrypted data packet of the protocol; using a rule detection method for a data packet which cannot be perfectly matched with a corresponding protocol; depending on a preset character string or binary sequence in a rule base, when the similarity is higher than a preset threshold value, determining that the data packet belongs to the protocol, forwarding the data packet to an agent engine, marking the data packet by the agent engine, sending the data packet to an exclusiveagent engine of different protocols, and sending the data packet to a target server by the exclusive agent engine; and for the data packet incompatible with the protocol, analyzing an information structure in the data packet, analyzing and storing the data packet according to attributes, and sending the processed data packet to a compatibility result display module for displaying.

The invention discloses a container monitoring system based on hybrid networking. The container monitoring system comprises inner-container monitoring terminals, container door monitoring terminals and a converging terminal, wherein the inner-container monitoring terminals comprise first wireless communication modules, temperature and humidity sensors, vibration sensors and gas concentration sensors; the first wireless communication modules are used for acquiring temperature, humidity, vibration and gas concentration state parameters, and transmitting the state parameters to second wireless communication modules in the container door monitoring terminals; and the second wireless communication modules on container doors of containers and the first wireless communication modules in the inner-container monitoring terminals construct a star network. Through a hybrid protocol and hybrid frequency, the node scale of a conventional ZigBee network is lowered; the response time of the system is shortened effectively; the problems of channel preemption and interference among wireless communications are solved; and the communication reliability is enhanced.

A method for providing wireless communication between a source node and a destination node in a wireless network wherein the wireless network uses a time division multiple access (TDMA) protocol. One or more dedicated TDMA transaction timeslots are arranged in a superframe. The superframe includes at least one dedicated transaction slot forming a hybrid protocol with two or more shared transaction slots per superframe. The method is of particular advantage when practised with a WirelessHART protocol wireless sensor network and when used for monitoring and control equipment and processes in an industrial installation. A computer program, and a wireless node and a wireless network using the inventive method are also disclosed.

The invention discloses a remote control software realization method based on a combined TCP and UDP protocol. According to the method, a TCP protocol and a UDP protocol are combined, various command messages are sent to a controlled end through the UDP protocol, and data transmission is accomplished through the TCP protocol. Through the method, reliable service is provided based on reliability of the TCP protocol; the UDP protocol is a connection-less protocol, data message service is provided, small system resource cost and rapid transmission speed can be realized through utilizing the UDP protocol; safety of the UDP protocol and rapidity of the TCP protocol are combined through utilizing the combined TCP and UDP protocol.

The invention relates to the technical field of field buses, and specifically provides a mixed-protocol two-stage topological structure based field bus system and a construction method thereof. The system is that a first-stage bus structure is a bus type topological structure formed by a Nic-Net main station and a Nic-Net main slave station through a first-stage bus Nic-BUS; a second-stage bus structure is a star shaped topological structure formed by a Nic-Net main slave station and a Nic-Net secondary slave station through a second-stage bus NicLink; the Nic-Net main station comprises a bus application layer, a data link layer and a physical layer; the first-stage bus NicBUS adopts time determination data link control protocol; the Nic-Net main slave station comprises a NicBUS slave station and a NicLink main station; the Nic-Net secondary slave station comprises a bus application layer, a data link layer and a physical layer; two layers of buses NicLink between the Nic-Net main slave station and the Nic-Net secondary slave station adopts the time determination data link control protocol. According to the system, the field bus has the advantages of being high in real-time response performance and high in reliability, and supporting expandability of heterogeneous field buses; the topological structure has the characteristics of being clear in layers, and combining the advantages of the bus type and star type structures.

The invention discloses a sample classification method of a distributed privacy protection logistic regression model based on a hybrid protocol. The method is applied to a distributed logistic regression model training scene composed of n data providers, an encryption service provider and a data aggregator, and comprises the following steps: S1, an initialization stage; S2, a distributed model training stage; S3, a final model release stage. According to the method, the problem of privacy leakage in the process that a plurality of data providers jointly use logistic regression models to perform sample classification at present can be solved, so a sample classification task can be completed under the condition that private data is not leaked, and the safety of the sample classification process and the utilization rate of sensitive data are improved.

The invention discloses a streaming media wireless adaptive transmission method based on the TCP / UDP mixed protocol. Firstly, it combines the characteristics of reliable transmission of the TCP protocol with the characteristics of small transmission overhead, high speed and high efficiency of the UDP protocol, and converts video and audio data Encapsulate with a fixed-length data packet header, and use different channels for hierarchical transmission according to different data frame types. Set the data packet lifetime threshold on the receiver, and send a feedback packet to the sender if the receiving data times out. The sender began to discard non-key frame data of unreliable transmission channels, thereby alleviating channel congestion, reducing audio and video delays, and ensuring real-time streaming media playback. In addition, according to the amount of channel transmission data received by the receiver, the present invention uses a weighted average code rate control algorithm to dynamically adjust the code rate of the sender, thereby better adapting to changes in wireless channel bandwidth.