4695 results about "Area network" patented technology

Methods and apparatus for implementing storage virtualization on a network device of a storage area network are disclosed. A frame or packet is received at a port of the network device. It is then determined that the frame or packet pertains to access of a virtual storage location of a virtual storage unit representing one or more physical storage locations on one or more physical storage units of the storage area network. A virtual-physical mapping between the one or more physical storage locations and the virtual storage location is then obtained. A new or modified frame or packet is then sent to an initiator or a target specified by the virtual-physical mapping.

Wide-area data communications utilize regional networks transporting IP-over-Ethernet on fiber. For certain Layer 2 services, a regional implementation of the network makes limited use of spanning tree protocol on a backbone ring. Learning bridge operations in switches on associated access rings involve a short default for an aging timer. For use of Open Shortest Path First (OSPF), the connection of each access ring to the backbone ring uses a pair of routers with dual links therebetween. One of these links is bonded to the backbone (OSPF Area 0), whereas the other link is bonded to the Area of the respective access ring. Also, certain routers within each regional network form a mini-autonomous system, for boundary gateway protocol (BGP). The mini-autonomous systems of the regional networks form a confederation. The network utilizes route reflectors in the mini-autonomous systems. The Internet carries confederation commands to and from a designated hub.

A system and method of assisting a driver of a vehicle by providing driver and vehicle feedback control signals is disclosed. The system and method includes receiving location data of the vehicle from a GPS unit, receiving the location data of the vehicle and retrieving navigation characteristics relevant to the location data using a processing circuit, generating a most probable future path for the vehicle and determining a location of at least one navigation characteristic with respect to the most probable future path and the vehicle, generating vehicle data at least one vehicle sensor, and transmitting a control signal to a vehicle control area network to warn the driver of an upcoming navigation characteristic on the most probable path.

The present invention provides an antenna array structure which includes multiple array elements, and the antenna array structure is using for the application of the WLAN (wireless local area network) or WMAN (wireless metro area network.) Furthermore, the array elements of the present invention are phased arrays or attenuated arrays, and when configuration with different type of the array element is used, the corresponding BFN (beam forming network) can also be implemented in various possibilities. With all the configuration of the present invention, the manufacturers can have a stable array structure for their applications.

A method and system monitor a communications network, e.g., a controller area network (CAN), and more specifically, an in-vehicle communications network, by maintaining a count of each type of error code and a histogram of all network messages seen by each of the controllers during a measurement period; and by determining a bus health index of the communication bus based upon a percentage of a given type of error to the total count of all errors during a measurement period. An individual controller or controller area network bus segment can be indicated as having a communications problem as a result of the health index.

A method and system for routing high-speed data to and from SANs (Storage Area Networks and Server Area Networks) via optical burst-switched (OBS) networks. OBS network components, including edge nodes and switching nodes, are coupled between SAN islands. In one embodiment, the OBS network comprises a photonic burst-switched (PBS) network. Under one scheme, a PBS edge node and SAN gateway are co-located at the interface to the SAN, while a plurality of PBS switching nodes are deployed between the PBS edge nodes. Under another scheme, PBS switching / edge nodes are co-located at respective SANs. This scheme employs an external gateway protocol (EGP) for routing data via selected route segments. Data going to and received from a SAN is packaged as Fibre Channel Frames. Data transmitted via the PBS network is converted into PBS frames having encapsulated Fibre Channel Frames. The schemes also support interfaces with legacy networks, such as LANs and WANs.

Wireless roaming in a computer network may be handled through a solution provided on one or more switches in the network. A roam request sent by a switch corresponding to the user's new location may be received by the other switches in the network. If the user is known to any of these switches, then they may execute steps to accommodate the roaming. The tasks performed may vary based on whether the roaming is on layer 2 or layer 3, whether the switch is a home agent for the client, and / or whether the switch already corresponds to the user's new location.

A wireless broadband access gateway having a wireless interface compatible with any of a number of commercial wireless wide area network standards provides enhanced wire area network coverage via a broadband network. The gateway may function as a wireless wide area network base station having a small coverage area, and may be communicatively coupled via a broadband access provider to a broadband wireless controller that cooperatively coordinates call management for access devices comprising cellular or mobile multimedia handsets. The broadband network may comprise cable, digital subscriber line, satellite, T1, or T3 type networks, and may carry traffic unrelated to the signaling, control, voice, and multimedia information of associated with wide area network calls. The wireless broadband access gateway may comprise a set-to-box, and may operate to convert from air interface protocols used to communicate with mobile handsets of the wireless wide area network, to / from the packet-based protocols that may be used in the broadband network.

A fibre channel switch element and method for routing fibre channel frames is provided. The switch element includes a receive segment that can add a virtual storage area network (“VSAN”) tagging header to frames that are received by the receive segment; and strip the VSAN tagging header before frames are sent to ports that do not support virtual fabric capability. The receive segment includes a table used for matching fabric extension parameters. An incoming frame's VSAN identity value is compared to a control word entry to generate a value used for routing the incoming frame. The table is used to determine if a frame is part of a virtual fabric. The routing table for each port is used to route frames and the routing table includes entries for supported virtual fabrics.

Methods and devices are provided for non-disruptive monitoring of network traffic through one or more ports of a Fibre Channel network device. Preferred embodiments of the invention are used in conjunction with the switched port analyzer (“SPAN”) and / or remote SPAN (“RSPAN”) features. SPAN mode operation allows traffic through any Fibre Channel interface of a network device to be replicated and delivered to a single port on the same network device. Ingress SPAN allows the monitoring of some or all packets that ingress a specified port or ports. Egress SPAN allows the monitoring of some or all packets that egress a specified port or ports. RSPAN allows the delivery of the replicated traffic to a port on a remote network device. Filtering may be applied, for example, to SPAN packets having selected virtual storage area network numbers.

A method and apparatus for transmitting class 1, 2, or 3 fax image data streams over Internet Global Area Networks is shown. A first device converts local fax image data streams into electronic data streams, transmits the data stream over the network, to a second device at the remote fax machine which reconverts the electronic data to fax image data and prints it out on said remote fax machine.

A system for facilitating pipeline management, software, and methods are provided. The system includes a pipeline company computer positioned at a pipeline company site to define a pipeline company server, having a processor, memory coupled to the processor to store software and database records therein, a graphical display coupled to the processor for displaying graphical images and a user interface coupled to the processor to provide a user access to manipulate the software and database records, and pipeline information management analyzing software to analyze pipeline management requirements. The system also includes an area network in communication with the server, a remote user computer in communication with the area network, positioned remote from the server at remote site, and positioned to access the pipeline information management analyzing software, and a portable user computer adapted to interface with the area network to access the pipeline information management analyzing software to provide the field user access to the server database.

A method and system for improving utilization of the typical DBMS client-server configuration is provided. Specifically, the present invention can include a Database Switch (dBSwitch) situated between the applications and database servers in a network, capable of dynamically and transparently connecting applications to databases using standard database servers and standard protocols. The Database Switch appliance performs this database routing in real time, with high bandwidth and negligible latency. The Database Switch enables the formation of a Database Area Network (DAN) architecture, which promotes database virtualization by integrating the database servers, the shared storage, and the interconnecting network, making them appear to be one large, scalable database server. This DAN architecture yields high utilization, high availability, scalability on demand, simplified management and security, in a shared and heterogeneous application environment.

A system and method for managing licensed and unlicensed frequency bands in a wireless wide-area network includes establishing the available channels of a licensed band and unlicensed band of frequencies. Data traffic is prioritized for assigning channels. Higher priority data traffic is assigned to the licensed frequency band and lower priority data traffic is assigned to the unlicensed frequency band. Channel quality is determined, wherein higher priority traffic is assigned to lower noise channels. Data traffic is shifted from the channels of the unlicensed frequency band to the channels of the licensed frequency band if the quality of the channels of the unlicensed frequency band deteriorates below a predetermined acceptable threshold.

A device and system that can dynamically provide variable load on a generator and intelligently distribute generated power to loads and energy storage devices is disclosed. One system includes load profile controllers that employ a switching strategy to dynamically vary the load the generator induces while producing regenerative energy. This switching strategy may allow for a wide dynamic range of configurable damping characteristics, as well as decouple generator damping and the system output power. Multiple load profile controllers can be used together via a communications network, such as a vehicle controller area network (CAN) bus. A central regeneration controller or existing electronic control unit (ECU) can issue commands to change damping performance in different load profile controllers. By networking multiple load profile controllers together in either a distributed or centralized manner, the system may allow for intelligent power routing, coordination of multiple energy-generating devices (such as regenerative shocks and brakes), and improved utilization of on-board energy storage devices.

A Wireless battery area network permits the wirelessly monitoring and controlling of individual batteries within large-scale battery applications. The system automatically configures its wireless nodes in the network and provides for the linking of a plurality of batteries (10) to a master battery management unit (M-BMU) (100) by establishing a wireless battery area network within a battery pack that include slave units (S-BMU) (210). The entire system may also be controlled by a top level battery management unit (T-BMU) (510). The system and method allows for the monitoring of voltage, current, temperature, or impedance of individual batteries and for the balancing or bypassing of a battery.

Common handheld transceivers operating on different frequencies with differing protocols can be provided with a mini module attached to the handheld transceiver that not only converts the audio information available from the handheld to the format and frequency of the temporary incident area network, the mini module also provides a sensor platform coupled to a wide variety of sensors whose data gathering capabilities in the vicinity of the individual are used to provide an incident commander or other individuals at nodes on the network with data to ascertain the conditions at the incident scene in the vicinity of the individual. Thus not only can information pertaining to the immediate health of and danger to emergency personnel be ascertained quickly, the transmission of sensor and image data over the same network provides situational awareness for the incident commanders and indeed for all those coupled to nodes on the network.

Structures and methods herein insert one or more parallel “recessive nulling” driver impedances across a controller area network (CAN) bus starting at the time of a dominant-to-recessive data bit transition and extending for a selected recessive nulling time period. Doing so increases a rate of decay of a CAN bus dominant-to-recessive differential signal waveform, permits a shortened recessive bit time period, and allows for increased CAN bus bandwidth. Various modes of operation are applicable to various CAN bus node topologies. Recessive nulling may be applied to only the beginning portion of a recessive bit following a dominant bit (“LRN mode”) or to the entire recessive bit time (“HRN mode”). And, some embodiments may apply LRN operations to some recessive CAN frame bits and HRN operations to others.

The invention discloses a charging and battery changing system and an operating method thereof, wherein the system comprises an operating management center device, a charging, battery converting and controlling device and a terminal device; the operating management center device is used for managing the charging and battery changing information in a managed area; the charging, battery converting and controlling device is connected with the operating management center device via a communication network and connected with the terminal device via a wireless local area network and a controller area network (CAN) bus, and is used for charging and changing a battery, controlling a charging and battery changing station and identifying the terminal device; and the terminal device is connected with the operating management center device via the communication network and is used for providing the operating state of the terminal device. According to the invention, the scattered and isolated terminal devices are connected with charging and battery changing devices via the network so that the operating management center device can conveniently acquire the operating state of each device, thus the charging and battery changing system can comprehensively monitor and manage each device; and furthermore, according to the invention, a basis can be provided for the development of the electric vehicle industry.

An adaptation to Carrier Interferometry synthesis and analysis provides for frequency-varying subcarriers. Coding and decoding functionality can be extended to orthogonal chirped and frequency-hopped waveforms. Poly-amplitude codes permit successive interference cancellation in spatial and frequency-domain processing. Dynamic re-sectorization and bandwidth exchange are facilitated by subcarrier allocation.

The invention provides a method and a system for processing high-definition remote sensing image data by applying a rational function model, a satellite image block adjustment and auto-match and distributed parallel processing technology. The method comprises the following steps: analyzing and processing input primary image data and computing parameters of the corresponding rational function model so as to obtain a stereo image pair by applying the computed rational function model; performing measurement and singlechip orientation of a control point and a connecting point on the primary image data, and performing block adjustment processing on an error between stereo image pixel data and the primary image data so as to improve the fit precision between the stereo image pixel data and the primary image data; generating an image similar to an epipolar ray, defining a matching template, measuring matched seed points and lines, performing automatic image matching and generating a digital elevation model; and respectively generating a digital orthophoto map and a digital line graph, and finishing manufacturing a product by applying the obtained data.

A method of conducting a well treatment service job, comprising assembling an oilfield communication network comprising a plurality of mobile terminals distributed across a plurality of well sites and a plurality of base transceiver stations, wherein some of the mobile terminals are coupled to each other in wireless communication by the base transceiver stations; preparing a well for the well treatment service job; performing one or more well treatment steps; collecting one or more data parameters associated with the well treatment service job; and communicating the one or more data parameters from at least a first one of the mobile terminals via the oilfield communication network.

A data transmission system uses a method of aligning a plurality of transmission lanes with a plurality of reception lanes in a time-division multiplexing arrangement. The method utilizes a plurality of control symbols and lane identifiers that are transmitted on each of the transmission lanes during link initialization and training. The control symbols and lane identifiers are time-division multiplexed onto a data link and subsequently demultiplexed onto the plurality of reception lanes. One of the reception lanes is monitored for receipt of a control symbol followed by a lane identifier. Upon receipt, a lane identifier is compared to the identity of the reception lane being monitored. If the received lane identifier does not match the identity of the reception lane being monitored, the assignment of the reception lanes is rotated.

Disclosed herein is a modular battery system having at least one subsystem comprising a plurality of battery modules connected in series or parallel, wherein each subsystem preferably having a first endplate and a second endplate. The battery modules may be bound between the first and second endplates. A plurality of band members couple the first and second endplates to each other and bind the battery module between the endplates. Further, a data collection panel is in electrical communication with each of the battery modules and the data collection panel transmits status information of the modules to a master control module, which converts the electrical into a data transmission through a controller area network (CAN) bus. Status information may include module temperature, module pressure and module voltage, essentially any measurable parameter that may be conducted via an electrical signal. Depending on the needs of a given application, the battery modules may be connected in series or parallel.

A vehicle management system includes a first module having a plurality of functions. The vehicle management system also includes a second module and a system bus. At least the first module and the second module communicate on the system bus. The vehicle management system further includes an identifier based on one of a plurality of vehicle types. When a first vehicle type is identified, a first set of the plurality of functions is utilized based on the identifier associated with the first vehicle type. When a second vehicle type is identified, a second set of the plurality of functions is utilized based on the identifier associated with the second vehicle type.