1448 results about "Load sharing" patented technology

The present invention relates to an orthopaedic implant, such as a bone plate, for the fixation of bone where the implant also has at least one microchip and at least one sensor connected to the microchip. The sensor or sensors are configured to receive physical stimulus from a portion of the implant or the patient's tissue such as temperature, pressure, and strain. The information received from the sensor or sensors is gathered by the microchip and transmitted to a receiver, such as a personal computer, outside the patient. This information enables doctors to diagnose the useful life of the implant, the load sharing of the bone plate, and possible complications typically associated with orthopaedic implants such as infection, fracture non-union, and fatigue. The implant may also have one or more electrodes located on its surface which emit an electric current to stimulate healing of the broken or fractured bone.

Methods, apparatuses and systems relating to the control and application of policies for routing data over a computer network, such as the Internet. Some implementations of the invention facilitate the configuration, deployment and / or maintenance of network routing policies. Some implementations of the invention are particularly useful for controlling the routing of data among autonomous systems or organizations. Certain implementations allow for dynamic modification of routing policy based on such factors as current Internet performance, load sharing, user-defined parameters, and time of day.

A method to automatically allocate servers to network services in a data center in real time and without need for operators for a load sharing device is provided. In the method, fluctuations in quantity of requests arriving at the network services can be monitored, the value of the quantity of requests for a subsequent fixed time interval can be predicted and, in accordance with the magnitude of the predicted value of the quantity of requests, the quantity of servers allocated to the network services can be controlled. Here, where traffic of the quantity indicated by the predicted value of the quantity of requests arrives at the network services, the number of servers allocated to the network services can be set in such a way that the average response time to the user terminals is equivalent to a response time threshold value or less set in advance by the operations manager.

Methods and apparatus for providing a hierarchical mobility management function for routing packets to mobile nodes are provided. The hierarchical mobility management function may be placed anywhere within the network and provide efficient use of IPv6 addresses. A node implementing the hierarchical mobility management function receives packets intended for the mobile node and routes the packets to the mobile node's current address. Load sharing of packets intended for a mobile node may be implemented across several access routers. Additional, bi-casting of packets is provided to allow for seamless handoff of the mobile node as it switches from one access router to another access router.

A computer network switch system is disclosed. A switch system may be configured as a single chassis system that has at least one line card, a set of active switch fabric cards to concurrently carry network traffic; and a first system control card to provide control functionality for the line card. The switch system may be configured as a multiple chassis system that has at least one line card chassis containing several line cards, and a switch fabric chassis (or a second line card chassis) that contains several switch fabric cards to provide a switching fabric with multiple ports. Load-sharing is accomplished primarily at the chip level, although card-level load-sharing is possible.

A connection server (3) has a receiving part (31) for receiving request information regarding a request for load sharing, which is sent from a first information processing apparatus (1) to a load sharing port of the connection server (3), a load sharing part (32) for allocating the first information processing apparatus (1) that is a source of the request information to any processing server, a sending part (33) for sending port position information indicating the position of the connection port corresponding to the allocated processing server to the first information processing apparatus (1), and a connection part (34) for establishing a connection between the connection port and the processing server corresponding to the connection port. The first information processing apparatus (1) sends the received port position information to a second information processing apparatus (2). With this configuration, in a communication system for load sharing, two or more information processing apparatuses have access to one processing server.

The distribution of traffic flows in a load-sharing redundancy group that includes a first gateway device and a second gateway device includes assigning a first set of forwarding addresses to the first gateway device and a second set of forwarding addresses to the second gateway device. The redundancy group distributes forwarding addresses to hosts which in turn use the distributed forwarding addresses to send packets to the redundancy group. The traffic flow for each of the assigned forwarding addresses is measured and may be compared to a target traffic flow. The traffic flow is adjusted to close in on the target traffic flow. Adjustment of the traffic flow can be accomplished either by changing the existing measured traffic flow by re-assigning a forwarding address originally assigned to one gateway device to a different gateway device or by altering future distribution of forwarding addresses so that additional traffic is sent to one or more forwarding addresses having lower measured traffic. The gateway devices can be routers using virtual MAC addresses as forwarding addresses. The redundancy group may also be configured to provide failover services in the event that one of the gateway devices ceases operation.

Methods, apparatuses and systems relating to the control and application of policies for routing data over a computer network, such as the Internet. Some implementations of the invention facilitate the configuration, deployment and / or maintenance of network routing policies. Some implementations of the invention are particularly useful for controlling the routing of data among autonomous systems or organizations. Certain implementations allow for dynamic modification of routing policy based on such factors as current Internet performance, load sharing, user-defined parameters, and time of day. In one embodiment, the present invention provides methods, apparatuses and systems implementing enhanced network path testing methodologies that enhance the efficiency of processes associated with testing of a network path, while reducing the perceived intrusiveness of test packets associated with such metrics tests.

The present invention provides improved unicast routing, multicast routing and unicast load sharing as compared with conventional methods. Preferred implementations of the invention provide improvements to IEEE 802.1Q. According to preferred aspects of the invention, each bridge is the root of its own multiple spanning tree instance (“MSTI”). Preferred implementations of the invention require no learning of media access control (“MAC”) addresses on the backbone of a network. Some methods of the invention can resolve spanning tree asymmetries. Preferred implementations of the invention require a very low computational load for control protocols.

A method is implemented by a network element to improve load sharing for a link aggregation group by redistributing data flows to less congested ports in a set of ports associated with the link aggregation group. The network element receives a data packet in a data flow at an ingress port of the network element. A load sharing process is performed to select an egress port of the network element. A check is whether the selected egress port is congested. A check is made whether a time since a previous data packet in the data flow was received exceeds a threshold value. A less congested egress port is identified in the set of ports. A flow table is updated to bind the data flow to the less congested egress port and the data packet is forwarded to the less congested egress port.

Artificial disc devices are disclosed that restore correct anatomical intervertebral spacing for damaged discs while maintaining a substantially normal range of biomechanical movement for the vertebrae between which they are implanted. The disc devices include center bearing and outer or annular bearing portions with the center bearing portion including generally axially extending locating surfaces which cooperate with the facing vertebral surfaces to resist migration. The outer bearing portion is for load bearing or load sharing with the center bearing portion and includes surfaces that extend radially toward the periphery of the vertebrae so that subsidence about the center bearing portion is minimized. Alternate forms of the disc devices include one with an axially enlarged center ball bearing having an annular ring bearing extending thereabout and another having upper and lower plate members with a central bumper member and a surrounding resilient annular member therebetween.

The use of low permeability magnetic material (NSME) with the disclosed design strategies form a two-stage isolated output converter system with the distinct advantages of superior density, efficiency, thermal operating bandwidth, service life, transient survival, and form factor flexibility over the prior art. These improvements are realized by, optimized application of NSME, efficient rectifying flyback management techniques, inclusion of switching buffers that substantially reduce switching losses. The instant invention provides power factor correction, output regulation, inrush limiting, over voltage, over current, over temperature, and transient protection, multi-converter load sharing, hot swapability, and fault signals.The disclosed system is designed, specified, and certified to function from −40 deg. C. to +65 deg. C. from a 180 vac to 264 vac 50 / 60 Hz input line and supports 1000 watts of output or 600 watts from 90 vac to 120 vac 50 / 60 Hz line input at greater then 0.95 power factor and features a packaged power density of 14 watts per cu. in. at high line.

A load balancing system and methodology for packet-based wireless cellular networks, whereby wireless access points are dynamically reconfigured by altering their transmission power level to modify their area of coverage. The modification function is based on the localized traffic load or congestion at each individual access point, or the collective load experienced by groups of access points. This modification to the cellular layout is used as an implicit load-balancing technique. When an overloaded access point reduces its coverage area, it forces some wireless client devices that were earlier within its footprint, but no longer within its coverage area, to attach to alternative access points. Similarly, when an underloaded access point increases its coverage area, it provides an opportunity to wireless devices, which were earlier outside its footprint, but now within the expanded coverage area, to switch attachment to this access point. By changing the access point to which a wireless device attaches, the load-levels on the individual access points are indirectly changed.

A device and method for equalizing the charge among a plurality of batteries redundantly driving a motor. The batteries are coupled to the motor through isolated windings and to each other through the drive shaft. The device senses the charge of the batteries and then controls the current from each of the batteries to its respective winding to equalize the charge. Related methods are provided to maximize the speed limit of a balancing transporter.

A secure telecommunications system includes an external network and an internal network on which traffic travels. The system includes a switch connected to the network. The system includes a first inspection engine and a second inspection engine which are connected to the switch, which receive traffic from the switch, process the traffic to determine whether it is desired traffic or undesired traffic, which prevent undesired traffic from passing through it and which sends desired traffic back to the switch. The system includes a first destination connected to the switch which receives desired traffic from the switch that has been processed by the first inspection engine. The system includes a second destination connected to the switch which receives desired traffic from the switch that has been processed by the second inspection engine. A method for sending traffic over a secure telecommunications system.

Internal braces and methods of implanting same. A brace can be implanted on one side of a joint, or a pair of braces can be implanted, one on each opposite side of a joint. Each brace supports the joint over at least a portion of its range of motion. Distraction may be provided, or load sharing can be accomplished without distraction. Relative axial rotation of the bones connected by the brace may be permitted. One or more compliant members may be provided in the brace.

An assembly and method thereof comprising a screw head comprising an expandable bulbous end; a fixator component configured for receiving the bulbous end of the screw head; a load sharing mechanism positioned in between the bulbous end of the screw head and the bone fixator component, wherein the load sharing mechanism provides tensile resistance to the screw head; a pin mounted in the screw head; and a blocker adapted to engage the screw head. The screw head comprises a slot configured for receiving a longitudinal member. The load sharing mechanism may comprise any of a wave washer, a collapsible hollow washer, a coiled spring, and a flexible washer. Furthermore, the load sharing mechanism may comprise a washer having an outer surface with a plurality of cutout portions configured therein.

Disclosed is a dynamic rod assembly for intervertebral stabilization that allows for load sharing across vertebrae by providing predetermined compression, distraction and bending. The dynamic rod is based on a first and second rod having a flexible union. The flexible union includes a retaining element for securing the rods in position and a bearing element interposed between a first and second bearing seat permitting the compression, distraction and bending.

A dynamic spinal stabilization component which supports the spine while providing for the preservation of spinal motion. The component is selectably attachable to a bone anchor for implantation in a bone of the spine. The component and bone anchor provide load sharing while preserving range of motion and reducing stress exerted upon the bone anchors and spinal anatomy. The dynamic spinal stabilization component includes a deflectable post connected by a ball-joint to a threaded anchor. Deflection of the deflectable post is controlled by a centering spring. The force / deflection properties of the dynamic bone anchor may be adapted to the anatomy and functional requirements of the patient. The dynamic spinal stabilization component may be used as a component of a dynamic stabilization system which supports the spine while providing for the preservation of spinal motion.

Methods and apparatus for providing a device for forwarding packets in a network are disclosed. A first router and a second router having a shared set of interfaces are provided, enabling the first router and the second router to share forwarding data for forwarding packets on the shared set of interfaces.

Systems and methods for controlling motion and physiologic load sharing across a functional spinal unit defined by a pair of adjacent vertebrae and an intervertebral disc therebetween are provided. The systems may comprise a first component for repairing or replacing a disc nucleus, without substantially disrupting the annulus. A second component may be provided for attachment to the adjacent vertebrae, the second component being configured to control movement of the vertebrae relative to one another. The first and second components may be configured to cooperate simultaneously to control motion and collectively distribute physiologic load sharing across the functional spinal unit.

An method for PDSN (Packet Data Serving Node) initial assignment and re-selection in a wireless communication system is provided. The method is implemented in PCF (Packet Control Function) within a third-generation (3G) CDMA Radio Access Network (RAN). The methodology reduces the number of point-to-point (PPP) re-establishments, when a Mobile Station (MS) roams to a different packet zone / PCF. The method generates a table of PDSN identification numbers cross-referenced to the PDSN Internet protocol (IP) addresses, residing with each PCF. A PDSN Id number is selected from the table using the MS IMSI (International Mobile Station Identifier) as a key to perform the selection. The present invention methodology addresses the issue of forward and backward compatibility, scalability, reliability, and load sharing in the PDSN selection.

A fault tolerant synchronized virtual memory manager for use in a load sharing environment manages memory allocation, memory mapping, and memory sharing in a first processor, while maintaining synchronization of the memory space of the first processor with the memory space of at least one partner processor. In one embodiment, synchronization is maintained via paging synchronization messages such as a space request message, an allocate memory message, a release memory message, a lock request message, a read header message, a write page message, a sense request message, an allocate read message, an allocate write message, and / or a release pointer message. Paging synchronization facilitates recovery operations without the cost and overhead of prior art fault tolerant systems.

A packet classifier and a method for routing a data packet are provided. The packet classifier includes a content addressable memory, a translation table and a parameter memory. The method includes looking up a content addressable memory for a base address into a parameter memory using a header of the data packet. The base address is related to the routes under ECMP for forwarding the data packet. From among these addresses, using multiple headers of the data packet, an adjustment to the base address is computed. The adjustment specifies an actual address to the parameter memory corresponding to a selected route for forwarding the data packet. The parameter memory is then accessed using the actual address to obtain parameter values relevant to the selected route. The data packet is then forwarded according to the parameter values thus obtained.

A plurality of single-phase synchronizing converter automatically synchronize on a peer-to-peer basis. Each synchronizing converter is configured as a DC-to-DC converter. The synchronizing converters operate in parallel as a multi-phase converter. A common bus between the synchronizing converters includes a sync line and a common phase control line. Proper phasing automatically occurs when power is applied, and the phasing changes automatically as converters are added or removed. When the system powers up, the converters arbitrate for phase position. The phasing positions are random, but the phasing is relatively symmetrical regardless of the number of phases. In one embodiment, a hot-swappable converter module can be plugged into any location of a parallel multiphase bus to produce a common output voltage. When an additional module is plugged in, the converters readjust their phases to maintain phase symmetry. In one embodiment, each module shares a substantially equal portion of the output load.

A parallel-hybrid transmission has one or more electrical motor / generator units, at least one of which moves in an anti-engine-wise direction in certain operational modes. The motor / generators are coaxially or concentrically arranged with the transmission input and output shafts via planetary gear sets. Associated clutch closures selectively couple power to and from the sun gears and planetary carriers of the gear sets through a complex planetary gear configuration such as a Ravigneaux gear set, for switching between certain operational modes. The clutch and brake operations selectively achieve multiple ratio range operations including engine starting under electric power, high torque acceleration from a standstill, regenerative deceleration (braking), multiple ratio range operation, load sharing, rotation-matched step-less shifting and combined or individual continuously variable combustion engine and electric motor and / or generation modes.

An assembly that includes a fixator component, a clamping mechanism, a screw head, a load sharing mechanism, and a blocker. The fixator component further includes a bulbous end, a neck portion, and a threaded end. The clamping mechanism is positioned around the neck portion of the fixator component. The load sharing mechanism is positioned in between the screw head and the bone fixator component. The screw head further includes a pair of diametrically opposed arms, a socket and a slot. The socket is positioned between the pair of arms and the slot is positioned above the socket. The socket is dimensioned and configured to house the bulbous end of the fixator component. The load sharing mechanism provides tensile resistance to the screw head and the blocker is adapted to engage the screw head.

Synchronization of network traffic compression mechanisms deployed in redundant network topologies. In one implementation, the present invention features the synchronization of compression statistics on redundant network devices to facilitate failover and load sharing operations in the management of data flows traversing computer network environments. In one implementation, compression meta data is appended to synchronization packets and transmitted to one or more partner or redundant network devices. The receiving network devices use the compression meta data to synchronize one or more data flow control processes or data structures. Implementations of the present invention also feature process flows that increase the efficiency of synchronizing compression related operations.