Abstract: A method and apparatus for correcting of phase errors in a coherent optical receiver are disclosed. Embodiments include a method for calculating a phase error between in-phase and quadrature-phase component signals, multiplying the phase error by one of the component signals and subtracting the result from the other component signal to output a corrected signal.

Abstract: A system and a method for charging for directed provisioning and using of dynamic content to limited resource devices, through an integrated platform which handles all aspects of aggregation and management of such dynamic content. The integrated platform features a billing system for performing billing actions. The billing system of the present invention interacts with other components of the integrated platform in order to be able to determine the charge for particular triggering events, such as downloading dynamic content, and/or events which are actually triggered by the application itself. The charge is preferably determined according to one of a plurality of rules, as applied by a rules engine of the billing system. These rules are part of a charging policy, which may optionally be determined by the content provider.

Abstract: A charging detail record transmission capability is provided herein. A mobile gateway (MG) generates charging detail records (CDRs) intended for delivery to a charging gateway function (CGF). The CDRs are propagated toward both a first and second charging data function (CDFs). The first and second CDFs buffer the CDRs. The first CDF is configured for propagating CDRs toward the CGF. The second CDF is configured for propagating CDRs toward the CGF when the first CDF fails. The CGF is configured for acknowledging receipt of CDRs to the first or second CDF from which the CDRs are received. The first CDF is configured for acknowledging, to the second CDF, receipt of acknowledgment messages from the first CDF. The second CDF is configured for, upon failure of the first CDF, initiating a process for determining which of the CDRs buffered at the second CDF need to be propagated to the CGF in order to ensure that none of the CDRs generated by the MG are lost due to the failure of the first CDF.

Abstract: A method and apparatus providing improved set membership determination and group membership identification of candidate data elements using a single Bloom filter programmed to provide a plurality of non-zero f-bit binary vectors, where each of the f-bit binary vectors is associated with a respective group. The Bloom filter is programmed using one or more (but not all) of a plurality of hash filter sets.

Abstract: A purchasing capability is provided for supporting purchasing by a customer from an establishment, which may include functions such as placement of orders, processing of orders, and like functions. An order is placed from a mobile node (MN) of the customer to an application server (AS) of the establishment to which the order is placed. The AS may process the order for determining whether or not to accept the order and, where accepted, for completing the order. A payment commitment verification process may be used for verifying the commitment of the customer to pay for the order. The placement and processing of the order may be performed using an ordering application supported by the MN and the AS. The communication in support of the purchasing capability may be facilitated using a cellular serving node (CSN) configured for communicating with both the MN and the AS wirelessly.

Abstract: A server, upon receiving a request to complete a call over a packet-switched network, looks up an address on the packet-switched network on a local table. If the local table does not contain a matching address, the server asks a routing server to identify a receiving server address. The routing server identifies a suitable address and sends a message to the originating server containing the address. The routing server may consider such factors as the volume of calls currently being handled by various potential receiving servers in selecting a receiving server. The receiving server then receives, via the packet-switched network, a message requesting a telephone connection to a second telephone device. Before completing the connection to the second telephone device, information in the message representing the address of the device on the packet-switched network that originated the message is identified. The address information is compared to selected predetermined addresses for permitted origins of the message.

Abstract: Tools and methods in which user interaction via a common user interface enables the assessing of network security prior to implementation of the network, as well as assessing the security of existing networks, portions of existing networks, or modifications to existing networks. A network security model useful in realizing the tools and methods is also disclosed.

Abstract: The invention provides for advertising content selection, presentation, and statistics reporting at a wireless user terminal. The invention includes a method for selecting a subset of advertising content for presentation at the wireless user terminal. The invention includes a method for presenting advertising content at a wireless user terminal in response to one or more conditions detected at the wireless user terminal. The invention includes a method for collecting advertising content presentation statistics and providing the advertising content presentation statistics to at least one network system. In one embodiment, the invention may include one or more of the advertising content selection, presentation, and statistics reporting functions.

Abstract: In one embodiment, a scheme for the display of targeted and personalized advertisements in a packet-based media-delivery system, such as an Internet Protocol Television (IPTV) service. An Internet keyword-based advertisement-bidding model is used to place the most-appropriate IPTV advertisements for viewers depending on their interests as determined through the users' Internet activities, while maximizing advertising revenue for the IPTV service provider. One method for scheduling an advertisement for rendering in one or more time slots in packet-based media programming comprises: (a) obtaining at least one keyword from one or more Internet sessions corresponding to at least one user; (b) receiving a plurality of bid amounts corresponding to a plurality of available advertisements for the one or more time slots; and (c) scheduling, based on the at least one keyword and at least one of the bid amounts, the advertisement to be rendered to the at least one user in the one or more time slots.

Abstract: The invention includes a method and apparatus for dynamically establishing a multicast group. The method includes receiving, from a first user device, a request to establish a multicast group including a plurality of parameters adapted for establishing the multicast group, obtaining a multicast address for the multicast group, and establishing the multicast group using the assigned multicast address and the parameters. The parameters include at least one multicast group definition parameter and at least one multicast session description parameter. The multicast address and at least a portion of the parameters are adapted for being provided to a second user device to enable the second user device to dynamically join the multicast group.

Abstract: Triplexer formed by disposing upon a substrate a highly confined silicon waveguide including one or more polarization-diverse lattice filters that are monolithically integrated with photodetectors, such as PIN or APD.

Abstract: A capability is provided for supporting fault-resilient multicast using multiple sources. A method for supporting fault-resilient propagation of multicast traffic using Redundant Multicast Trees (RMTs) includes identifying each potential Shared Risk Link Group (SRLG) conflict associated with a pair of RMTs providing node-disjoint paths to a plurality of destination nodes, identifying each potential SRLG conflict that is an actual SRLG conflict, and, for each actual SRLG conflict, determining a detour path for protecting the links of the actual SRLG conflict. The pair of RMTs includes a first RMT from a first multicast source node to each of the destination nodes and a second RMT from a second multicast source node to each of the destination nodes. Each potential SRLG conflict includes a plurality of links.

Abstract: The invention includes a method and apparatus for providing a distributed forwarding plane for a mobility home agent. The invention provides a method for controlling routing of packets for a mobile node in a network comprising a network domain including a plurality of forwarding elements being controlled by a control element. A method includes computing a route from one of the forwarding elements toward the mobile node and propagating the computed route toward that one of the forwarding elements. The route is computed using location information associated with the mobile node and routing information associated with the network domain.

Abstract: Method and apparatus using incremental linear regression to derive a traffic flow signature indicative of a particular application within a packet stream.

Abstract: The invention includes a method and apparatus for providing SIP message prioritization between network elements along at least a portion of an end-to-end path between a SIP client and a SIP server. The method includes determining a SIP message prioritization policy and distributing the SIP message prioritization policy toward a prioritizing network element adapted to assign message priority levels to respective received SIP messages using the SIP message prioritization policy, process the received SIP messages according to the respective assigned message priority levels, and transmit the prioritized SIP messages toward at least one network element in a manner for propagating the respective assigned message priority levels to the at least one network element. The prioritizing network elements include SIP network elements and non-SIP network elements.

Abstract: The invention includes a method and apparatus for displaying and controlling information for managing an event. A method according to one embodiment includes displaying accountability information associated with a unit deployed to the event where the accountability information is indicative of accountability of the unit with respect to at least one function to be performed for the event, displaying communication information in a manner for facilitating communications for the event, and displaying status information associated with the at least one unit deployed to the event, wherein the information is displayed in a manner tending to enable control of the information for managing the event.

Abstract: The present invention provides for an optical cable and methods for interconnecting modular components with optical fibers. Each optical fiber is electronically labeled with a unique serial number such that interconnections using the optical fibers can be accurately audited.

Abstract: The invention includes method and apparatus for generating a protocol agent adapted to facilitate communications between a managed system and at least one management system. The method includes generating an implementation of a unified information model from an information model specification and generating the protocol agent from a protocol specification. The protocol specification includes first mappings to the information model specification and the protocol agent includes second mappings to the implementation of the unified information model. The second mappings are formed using the first mappings. The information model specification includes a model of hardware of the managed system. The implementation of the unified information model includes a plurality of logical entities, wherein the logical entities represent a plurality of physical entities of the managed system. The protocol specification includes a model of a protocol. The protocol agent includes a plurality of protocol entities.

Abstract: The invention includes a method and apparatus for controlling video streams. A method includes monitoring for an event associated with one of a plurality of video camera controllers providing a plurality of video streams where each of the video streams has a first quality level, and, in response to detecting an event associated with one of the plurality of video camera controllers, propagating a control message toward the one of the video camera controllers for which the event is detected, where a control message adapted for requesting the one of the video camera controllers to switch from providing the video stream using the first quality level to providing the video stream using a second quality level. The first quality level may be a low level of quality and the second quality level may be a high level of quality.

Abstract: A method and apparatus enforcing and improving end-to-end service quality, based on end-to-end service performance characterization of network conditions, for a convergence enabled end-user device during a user session for service. The methods and apparatus provide end-to-end network monitoring by implementing a performance monitoring agent in the end user convergence enabled end-user device, as well as in network elements providing and controlling a session communications path for the convergence enabled end-user device, such as base stations, wireline points of presence, data centers, network operations centers, among other network elements (e.g., nodes and facilities).