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| Number | Title | Issue Date |
| 7869814 | Internet protocol (IP) location, privacy and presence An extension to the Location Information Service (LIS) architecture uses a centralized, user-selected, Privacy Profile Register (PPR) and Presence Register (PR) element, the User Privacy and Presence Register (UPPR) (also known as the Home Register (HR)). This centr... | 01/11/2011 |
| 7826471 | Multi-beam cellular communication system A cellular communication system comprising a plurality of geographically spaced base stations (2) each of which comprises an antenna arrangement (4, 6, 8) per base station sector, each of which antenna arrangements has an antenna element for generating... | 11/02/2010 |
| 7454484 | Method and apparatus for producing a multicast tree A method and apparatus for producing a multicast tree in a network traces such tree based upon information retrieved from a multicast database that is protocol independent. More particularly, the network includes a plurality of network devices. A set of the pluralit... | 11/18/2008 |
| 7421489 | Network protocols for distributing functions within a network A network protocol distributes control and lookup functions among various network elements. Plural servers are permitted to service the same domain name without requiring re-mapping. Each client or server is permitted to have a different network quality of service l... | 09/02/2008 |
| 7403473 | Method and apparatus for accelerated protection switching in a multi-switch network element Accelerated protection switching in a multi-platform network switch may be achieved by allocating connectivity slots from the port cards to the switch cards for all states of a connection through the switch and forming maps of the allocations for use by the port car... | 07/22/2008 |
| 7397792 | Virtual burst-switching networks A time-shared network comprising edge nodes and optical core nodes may be dynamically divided into several embedded networks, each of which covering selected edge nodes. At least one of the edge nodes may host an embedded-network controller operable to form multiple... | 07/08/2008 |
| 7395423 | Security association storage and recovery in group key management A method for preserving security associations between at least two entities includes the steps of maintaining a security association relating to communication between the at least two entities in a table, and periodically storing the security association in non-vola... | 07/01/2008 |
| 7394808 | Method and apparatus for implementing scheduling algorithms in a network element Device-wide performance guarantees may be implemented in a network element using a pull forwarding scheme by using separate processes on the network element communicating via handshake signals to enable coordination between the aspects of the network element. One cl... | 07/01/2008 |
| 7391780 | Method and apparatus for statistical prediction of access bandwidth on an xDSL network Achieved bandwidths for existing subscribers are collected and organized into a statistical bandwidth table utilizing characterizing information, such as the Central Office (CO) that provided the service, the type of xDSL service that was provided, the primary, seco... | 06/24/2008 |
| 7388535 | Digitizing front end for optical receiver A sampled-data-integrating front end is employed to convert an optical signal to a digital electrical signal. The front end includes a photodetector and an array of parallel conversion circuits, each including an activation switch, a charge amplifier and an Analog t... | 06/17/2008 |
| 7385998 | Method and apparatus for encapsulating services for transportation over metallic physical mediums A network element employing a universal mapper enables multiple services to be mapped onto a physical medium (metallic link with a particular physical layer protocol) so that the number of service mappers, and hence the complexity of the network element, may be redu... | 06/10/2008 |
| 7383548 | CPU usage regulation A scheduler of central processing unit (CPU) usage arranges tasks in a plurality of classes, associating a given task with a top level class and a sub-class. Weights may be associated with sub-classes and usage targets associated with top level classes. A target CPU... | 06/03/2008 |
| 7376086 | Constraint based routing with non-transitive exceptions In a multiple element network, a method and network element for providing a constraint based routing system to accommodate non-transitive exceptions. The method and network element receive a connection request for an end to end connection. The network element can se... | 05/20/2008 |
| 7373428 | Intelligent filtering for contact spanning multiple access networks A personal communications portal maintains presence information about a user who may be available at one or more terminal devices on one or more access networks comprising a multiple access network. The access networks may operate in different transmission modes and... | 05/13/2008 |
| 7373420 | Method and apparatus for weighted fair queuing Management of a plurality of queues is made weighted and fair through the introduction of a system of credits. A credit is spent when a fixed-size unit of storage is served from a selected one of the queues. A scheduler selects a queue when an identifier of the queu... | 05/13/2008 |
| 7373646 | Method and apparatus for sharing stack space between multiple processes in a network device Network processes within a group of network processes are configured to share stack space by controlling when a context switch may be performed between processes in the group. Since a context switch will not be performed between group members during execution of the... | 05/13/2008 |
| 7369491 | Regulating data-burst transfer The invention discloses methods and apparatus for regulating the transfer of data bursts across a data network comprising electronic edge nodes interconnected by fast-switching optical core nodes. To facilitate switching at an electronic edge node, data bursts are o... | 05/06/2008 |
| 7369514 | Source credit based fairness scheme A method and apparatus for minimizing starvation of a station in a ring networked environment includes allocating a tax to each of the stations in the ring, and, for each packet that is to be transited though the ring, providing bandwidth to the station in the form ... | 05/06/2008 |
| 7369554 | Method and apparatus for performing filter operations on data packets using an instruction A method performs a plurality of filter operations on a data packet using an instruction. The method receives an instruction to filter at least one data packet. The method retrieves a filter result based on the received instruction. The method then performs a plural... | 05/06/2008 |
| 7366412 | Hybrid fine-coarse carrier switching An optical shell node is provided with an ability to perform time switching on signals received from subtending edge nodes and channel switching on signals received from other shell nodes and destined for the subtending edge nodes. The signals received from the subt... | 04/29/2008 |
| 7359328 | Apparatus for using a verification probe in an LDP MPLS network An ingress multi-protocol label switching (MPLS) label switched router (LSR) forwards a set of packets associated with a first set of forwarding equivalence classes (FECs) along a label switched path (LSP) to an egress MPLS LSR. Logic in the ingress MPLS LSR produce... | 04/15/2008 |
| 7359324 | Adaptive jitter buffer control A method for dynamically adjusting jitter buffer size according to buffer fill dynamics is disclosed. In one embodiment, an upper threshold and lower threshold for the jitter buffer are identified, wherein the lower buffer threshold identifies a minimum desirable nu... | 04/15/2008 |
| 7360084 | System, device, and method for controlling access in a multicast communication network A system, device, and method for controlling access in a multicast communication network uses a centralized host authentication scheme to prevent unauthorized hosts from joining a shared multicast distribution tree. Each authorized host is allocated a unique authent... | 04/15/2008 |
| 7359938 | System indicating the presence of an individual or group of individuals A presence management system is described whereby connections between watching parties and watched parties in a multiple access communications network are managed. When the presence management system receives a contact request from a watching party it determines whe... | 04/15/2008 |
| 7359404 | Apparatus using a knowledge digest to verify configuration information in a network A first network element forwards a set of packets associated with first configuration information along a path to a second network element. Logic in the first network element generates a first knowledge digest encoding the first configuration information into a fixe... | 04/15/2008 |
| 7359396 | Optical-core network with selective signal queueing A core network shared by a large number of edge nodes comprises core nodes interconnected by core channels. Selected core channels are provided with buffers to enable temporal alignment of signals arriving at any core node from several other core nodes. A buffer may... | 04/15/2008 |
| 7348494 | Signal layer interconnects Inner layer traces on a multilayer printed wiring board are exposed to enable direct interconnection with another device such as a printed wiring board. The traces may be exposed by removing at least some of the dielectric substrate material around the traces, or by... | 03/25/2008 |
| 7349630 | Hybrid WDM/TDM network architecture A method and apparatus for configuring a server/client network architecture. A server network device impresses an optical signal onto an optical link at a specified wavelength, where distinct wavelengths are associated with one or more of a plurality of client devic... | 03/25/2008 |
| 7350233 | Fast re-establishment of communications for virtual private network devices A method and apparatus has been described that permits fast re-establishment of secure communications between endpoints in a network through intelligent re-use of existing security associations. ... | 03/25/2008 |
| 7330896 | Correlating data streams of different protocols A single address configuration table entry maps multiple source devices in a source network to a single destination device in a destination network. The single address configuration table entry is used when any of the source devices initiates a connection to the des... | 02/12/2008 |
| 7330661 | Method and apparatus for optical communication between devices A method and apparatus for processing a data signal for transmission to a remote device transmits at least two synchronized copies of the data signal, in optical form, in different directions. To that end, the data signal first is synchronized to a clock signal to p... | 02/12/2008 |
| 7324536 | Queue scheduling with priority and weight sharing A Balanced Packet Transmit Opportunity (BPTO) mechanism allows balanced bandwidth traffic to be serviced while still maintaining the service levels desired for high priority traffic. The above embodiment achieved the result by distinguishing both queue types and slo... | 01/29/2008 |
| 7321932 | System, device, and method for managing connection establishment and related services in an optical communication system A system, device, and method for managing connection establishment and related services in an optical communication system uses an optical service agent to manage the connection establishment and related services on behalf of a user. The optical service agent may ne... | 01/22/2008 |
| 7317726 | Scheduling in a fast optical switch In a fast optical switch comprising a plurality of star couplers, channel switching, Time Division Multiplex (TDM) switching, or both may be provided. The operation of the fast optical switch is enabled by a fast scheduler comprising at least two scheduler modules. ... | 01/08/2008 |
| 7313608 | Method and apparatus for using documents written in a markup language to access and configure network elements An XML accessible network device is capable of performing functions in response to an XML encoded request transmitted over a network. It includes a network data transfer service, coupled to a network, that is capable of receiving XML encoded requests from a client a... | 12/25/2007 |
| 7310349 | Routing and rate control in a universal transfer mode network A method and a network for a universal transfer mode (UTM) of transferring data packets at a regulated bit rate are disclosed. The method defines a protocol that uses an adaptive packet header to simplify packet routing and increase transfer speed. The protocol supp... | 12/18/2007 |
| 7304948 | Congestion control for signalling transport protocols A transport layer protocol such as the Stream Control Transmission Protocol uses a new traffic control technique instead of the TCP slow start algorithm. The procedure assumes that the network on which it is implemented has a fixed bandwidth assigned for the connect... | 12/04/2007 |
| 7293079 | Method and apparatus for monitoring a network using statistical information stored in a memory entry A method monitors a network. The method receives at least one data packet, and reads an entry of a memory device. The entry of the memory device containing a first statistical value and a second statistical value. The method determines a third statistical value base... | 11/06/2007 |
| 7292639 | Method and apparatus for peak to average power ratio reduction for orthogonal frequency division multiplex systems A multi-stage signal processing method is provided that reduces the Peak to Average Power Ratio (PAPR) of an Orthogonal Frequency Division Multiplexed (OFDM) signal without increasing the bit error rate of the system. The multi-stage processing system apportions the... | 11/06/2007 |
| 7289440 | Bimodal burst switching In a first mode of burst communication in a telecommunication network comprising electronic edge nodes interconnected by bufferless core nodes, data bursts are formulated at the edge nodes, respective burst descriptors are communicated to a controller of a core node... | 10/30/2007 |
