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3851results about "Optical multiplex" patented technology

Policy based provisioning of network device resources

Methods are disclosed for establishing a path for data transmissions in a system having a plurality of possible paths by creating a configuration database and establishing internal connection paths based upon a configuration policy and the configuration database. The configuration policy can be based on available system resources and needs at a given time. In one embodiment, one or more tables are initiated in the configuration database to provide connection information to the system. For example, a path table and a service endpoint table can be employed to establishing a partial record in the configuration database whenever a user connects to a particular port on a universal port card in the system. The method can further include periodically polling records in the path table and transmitting data from the partial records to a policy provisioning manager (PPM). The PPM then implements a connection policy by comparing one or more of the new path characteristics, to the available forwarding card resources in the quadrant containing the universal port card port and path. The path characteristics can include the protocol, the desired number of time slots, the desired number of virtual circuits, and any virtual circuit scheduling restrictions. The PPM can also take other factors into consideration, including quality of service, for example, redundancy requirements or dedicated resource requirements, and balancing resource usage (i.e., load balancing) evenly within a quadrant.
Owner:CIENA

System and method for a subscriber-powered network element

A system for powering a network element of a fiber optic communication network. When communication data is transferred between a central office (CO) and a subscriber gateway using a network element to convert optical to electrical (O-E) and electrical to optical (E-O) signals between a fiber from the central office and copper wires or coax cable from the subscriber gateway, techniques related to local powering of a network element or drop site by a subscriber or customer remote device or gateway are provided. Certain advantages and / or benefits are achieved using the present invention, such as freedom from any requirement for additional meter installations or meter connection charges. Additionally the system is free of monthly meter charges and does not require a separate power network.
Owner:SOTO ALEXANDER I +1

Dynamic bandwidth allocation and service differentiation for broadband passive optical networks

A dynamic upstream bandwidth allocation scheme is disclosed, i.e., limited sharing with traffic prediction (LSTP), to improve the bandwidth efficiency of upstream transmission over PONs. LSTP adopts the PON MAC control messages, and dynamically allocates bandwidth according to the on-line traffic load. The ONU bandwidth requirement includes the already buffered data and a prediction of the incoming data, thus reducing the frame delay and alleviating the data loss. ONUs are served by the OLT in a fixed order in LSTP to facilitate the traffic prediction. Each optical network unit (ONU) classifies its local traffic into three classes with descending priorities: expedited forwarding (EF), assured forwarding (AF), and best effort (BE). Data with higher priority replace data with lower priority when the buffer is full. In order to alleviate uncontrolled delay and unfair drop of the lower priority data, the priority-based scheduling is employed to deliver the buffered data in a particular transmission timeslot. The bandwidth allocation incorporates the service level agreements (SLAs) and the on-line traffic dynamics. The basic limited sharing with traffic prediction (LSTP) scheme is extended to serve the classified network traffic.
Owner:NEW JERSEY INSTITUTE OF TECHNOLOGY

Monolithic active optical cable assembly for data device applications and various connector types

A monolithic cable assembly includes a communication cable and cable connectors coupled to either end of the communication cable. The communication cable includes at least one optical communication channel. The cable connectors include a physical end connector for electrically coupling to a data device connector, optoelectronic components for converting data signals between an electrical realm and an optical realm, and a passively aligned integrated lens cover. The integrated lens cover includes at least one optical pathway for coupling optical data signals between the at least one optical communication channel and the optoelectronic components.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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