46 results about "Task force" patented technology

In one embodiment, an audio-visual content delivery system, such as a set-top box/personal video recorder system, is configured to interface with a local area network (LAN). A packet processing circuit comprised in the system may be configured to filter and route Ethernet packet data received from the LAN to specific ports and/or queues without host processor intervention. The packet processing circuit may utilize a set of filter and routing mechanisms configurable in hardware to interpret various Internet Engineering Task Force (IETF) networking transport protocols, and may transfer the packet data in a format recognized by a variety of consumer subsystems, each of which may be coupled to the decoder. The packet processing circuit may be implemented as a semiconductor device, and may allow encapsulated application data, (encapsulated using standardized encapsulation techniques), to be routed to a plurality of different types of application sinks or processors, forming a point-to-point or multi-point serial or parallel data stream over a standard transport covering numerous levels of the ISO data communications stack.

A method and system for a secure telephone protocol are disclosed, which can be implemented using current Voice over IP (VoIP) protocols, Session Initiation Protocol (SIP, as specified in the Request for Comment (RFC) 3261 from the Internet Engineering Task Force (IETF)), Real Time Transport Protocol (RTP, as specified in RFC 3550), and Secure RTP (SRTP, as specified in RFC 3711). The secure telephone protocol can include a shared secret value that is cached and then re-used later to authenticate a long series of session keys to be used for numerous separate secure phone calls over a long period of time, thereby providing cryptographic key continuity without the need for voice authentication. In an embodiment, the secure telephone protocol can utilize the Diffie-Hellman key exchange during call setup, and AES for encrypting the voice stream.

The present invention incorporates methodologies developed in the Internet Engineering Task Force (IETF) Internet Protocol Security (IPSEC) Working Group into asynchronous transfer mode (ATM) and frame relay (FR) signaling to provide message integrity and origin authentication. In one implementation the invention provides a virtual private network (VPN) infrastructure with call control message integrity, origin verification, and transit network filtering. The invention utilizes a set of control plane messages based on the IPSEC authentication header (AH) methodology to provide these security mechanisms for ATM and FR network switching equipment and signaling protocols. This abstract itself is not intended to limit the scope of this patent. The scope of the present invention is pointed out in the appending claims.

Domain Name System (DNS) Queries and DNS Responses both use the same packet format. The DNS packet format, defined by Internet Engineering Task Force (IETF) Protocol Standard 13 (RFC 1035) includes a header section, a question section, an answer section, an authority record section and an additional record section. In conventional DNS Queries, the header section and the question section are used; the answer section, authority record section and additional record section are empty. In the present invention, when issuing a query, the client places the question in the question section as usual, but then places all the answers it already knows into the (previously empty) answer section of the query. When receiving a query, a responder first checks to make sure that the answer it is about to give is not already included in the answer section of the query. If the answer is listed in the answer section of the query, it means that the client already has that information, and doesn't need to be told again. In this way, when a client issues its first multicast query, it may receive many responses. When the client issues a subsequent query, it indicates the list of responses it successfully received by listing them in the answer section, and then only receives responses that were missed the first time. In the normal course of operation, this means that by the second or third transmission of the query, no further responses are generated on the network, and the client can then issue occasional periodic queries without eliciting a flood of responses every time.

Construction of LDPC (Low Density Parity Check) codes using GRS (Generalized Reed-Solomon) code. A novel approach is presented by which a GRS code may be employed to generate a wide variety of types of LDPC codes. Such GRS based LDPC codes may be employed within various types of transceiver devices implemented within communication systems. This approach may be employed to generate GRS based LDPC codes particular designed for various application arenas. As one example, such a GRS based LDPC code may be specifically designed for use in communication systems that operate in accordance with any standards and/or recommended practices of the IEEE P802.3an (10GBASE-T) Task Force.

A method for identifying real-time traffic hop by hop in an Internet network including a sender, a receiver, and routers in the network is provided. The method comprises steps of registering source port number and/or destination port number of the UDP respectively for RTP, RTCP and RTSP with the Internet Assigned Numbers Authority (IANA) under the Internet Engineering Task Force (IETF) arrangement, then in one aspect, adding in the UDP header a Session ID field for identifying the session. The method can be used to identify the frames of the Real-time Transport Protocol (RTP) hop by hop during the packet's transmission, and to provide priority for real-time traffic transport so as to provide a QoS guarantee for real-time traffic even in the case of dramatically increasing network traffic.

An Internet protocol (IP)-private branch exchange (PBX) system and a method for linking the system with a Voice over Internet Protocol (VoIP) terminal. The IP-PBX system and method allow the VoIP terminal to be registered at an extension of the IP-PBX system, the VoIP terminal supporting a protocol, e.g., H.323 or session initiation protocol (SIP), standardized by a standardization organization, e.g., the International Telecommunication Union (ITU), the Internet Engineering Task Force (IETF), or the European Telecommunications Standards Institute (ETSI).

Methods for cryptographic synchronization of data packets. A roll-over counter (ROC) value is periodically appended to and transmitted with a data packet when a function of the packet sequence number equals a predetermined value. The ROC effectively synchronizes the cryptographic transformation of the data packets. Although the disclosed methods are generally applicable to many transmission protocols, they are particularly adaptable for use in systems wherein the data packets are transmitted to a receiver using the Secure Real-Time Transport Protocol (SRTP) as defined in Internet Engineering Task Force (IETF) Request for Comments (RFC) 3711.

Process mining and tipping point analysis is used to determine tasks at risk. Tasks At Risk Intervention lead time analysis determines whether those tasks at risk can be performed in an opportunity window cost-effectively and at a high rate of success by the current task force. Load balancing can be used to offload fungible tasks at risk to flexible resources that can perform those tasks at risk for the highest value opportunities to micro-target tasks at risk with specific countermeasures, perhaps partitioned among several task force members to ensure can be done within the window of opportunity, to ensure their success. The flexible cognitive resources performing fungible tasks can be housed in a hub resource facility to centralize load balancing and obtain scale economies benefits from the shared capacity.

The invention provides a method and equipment for forwarding a datagram based on NAT 64 (Network Address Translation 64). The method and the equipment are used for solving the problems in the prior art that most of the content of the Internet is available to IPv4 (Internet Protocol version 4) only, the condition that IPv6 (Internet Protocol version 6) terminal users often need to access IPv4 content is unavoidable, the conversion of the network addresses and protocols of the IPv6 and IPv4 under the protocols of TCP (transmission control protocol), UDP (User Datagram Protocol) and ICMP (Internet Control Message Protocol) is realized by a NAT 64 technology designed by an IETF (Internet Engineering Task Force), however, forwarding equipment realizes the conversion of the network addresses and protocols mainly through traversing an address mapping table in a current NAT 64 implementation mode, and in the case of a large number of users, the searching efficiency is low, the system resource occupation is too large, and then the performance can be lowered seriously. According to the method and the equipment, the efficiency of converted address searching during the intercommunication between the IPv4 and the IPv6 is greatly increased through establishing an IPv4 and IPv6 mixed connection table and searching in a Hash manner, and then, the overall performance is improved.

The invention relates to an active defensive type graphic-model integrated operation monitoring system based on a DMTF-CIM (Distributed Management Task Force-CompuServe Information Manager) model, and is applied to monitoring objects, such as master station equipment, key applications and important data in a first region, a second region, a third region and a fourth region in a safety area having automatic power dispatching. The operation monitoring system mainly comprises a DMTF-CIM model definition module, a monitoring object modelling module, a monitoring object graphic-model conversion module, a monitoring object data acquisition module, a task management module and an alarm management module; an acquisition server in the monitoring object data acquisition module is connected to a monitoring object in the second region of the safety area through a core switch in the second region of the safety area and acquires operation data information; and the acquisition server formats operating data information through the DMTF-CIM model and then stores the operating data information in a database server in the second region of the safety area. Related functions of the DMTF-CIM model definition module, the monitoring object modelling module and the monitoring object graphic-model conversion module are realized.

The invention discloses a method and a device for improving Spark operation efficiency, and relates to the field of big data analysis and processing. The method comprises the following steps that: determining a table which needs to be cached in a system; identifying a cache task which takes the determined table which needs to be cached as input or output; grouping the identified cache task, and creating a processing process for the corresponding cache task group; and according to the current state of each processing process and the real-time use situation of Spark cluster resources, combiningcache tasks to be submitted, and sending the combined cache tasks to be submitted to a Spark cluster to be processed. By use of the embodiment of the invention, the system resources of the cluster canbe fully utilized, tables and contents to be cached are reasonably determined, the process is dynamically decided and scheduled, a degree of parallelism is increased to a maximum degree under a situation that resources permit, and a purpose of improving the Spark operation efficiency is achieved.

Construction of LDPC (Low Density Parity Check) codes using GRS (Generalized Reed-Solomon) code. A novel approach is presented by which a GRS code may be employed to generate a wide variety of types of LDPC codes. Such GRS based LDPC codes may be employed within various types of transceiver devices implemented within communication systems. This approach may be employed to generate GRS based LDPC codes particular designed for various application arenas. As one example, such a GRS based LDPC code may be specifically designed for use in communication systems that operate in accordance with any standards and/or recommended practices of the IEEE P802.3an (10GBASE-T) Task Force.

The present invention provides an optimal management method and system of an elevator group capable of realizing optimized operation, simple call allocation calculation, and high-speed calculation. In the optimal management method and system of elevator groups, an element on the line list representing the relationship between the departure floor and the arrival floor that the elevator car can provide services is called a task unit, and an elevator can provide services at a time The combination of task units is called a task group, and the set of task groups prepared for the entire elevator group is called a task group set. By dynamically assigning this task group set to the elevator group, the elevators can be operated efficiently.

A short length LDPC (Low Density Parity Check) code and modulation adapted for high speed Ethernet applications. In some instances, the short length-LDPC code and modulation may be employed within the recommended practices currently being developed by the IEEE 802.3an (10GBASE-T) Task Force. The IEEE 802.3an (10GBASE-T) Task Force has been commissioned to develop and standardize communications protocol adapted particularly for Ethernet operation over 4 wire twisted pair cables. A new LDPC code, some possible embodiments of constellations and the corresponding mappings, as well as possible embodiments of various parity check matrices, H, of the LDPC code are presented herein to provide for better overall performance than other proposed LDPC codes existent in the art of high speed Ethernet applications. Moreover, this proposed LDPC code may be decoded using a communication device having much less complexity than required to decode other proposed LDPC codes existent in this technology space.