Patent application number | Description | Published |
20090080329 | Egress traffic management system for a data communications system - An egress traffic management system for a data communication system is disclosed. The egress traffic management system makes use of a hierarchical queue ID header paradigm that enables data packets to be directed for egress traffic management to either one of a plurality of assignable queues in a main egress queue module or to one of a plurality of distributed queue modules via a common queue of the main egress queue module. This behavior enables egress traffic management functionality and scale to be varied independently and in a cost-effective manner to meet evolving requirements of a data communications system. | 03-26-2009 |
20090103434 | Ingress traffic flow control in a data communications system - Embodiments of the invention provide flow control of incoming data packets to data processing resources via a controller that can receive and react to advanced backpressure messages. These advanced backpressure messages are used to rate limit the data packets based one or more of the following factors: traffic class, traffic priority, destination port. The controller can also generate a traffic preference message to an upstream source of the data packets to inform the upstream unit of the most appropriate type of data that should be transmitted downstream at that time, thereby improving the likelihood of the transmitted data being processed in a proper and timely manner by the downstream data processing resources. Embodiments of the invention can improve the performance of a communications system during periods of congestion by ensuring that high-priority traffic has precedence over traffic of lower priority while maximizing utilization of the ingress data path bandwidth. | 04-23-2009 |
20090323526 | PROVIDING BACKPRESSURE FLOW CONTROL TO SPECIFIC TRAFFIC FLOWS - A method and apparatus for providing backpressure flow control to traffic flows of a data communications system are provided. Embodiments of the invention selectively apply a measure of flow control to traffic flows responsive to a level of congestion at a packet processor of the system. These embodiments advantageously provide flexibility in the application of flow control to specific traffic flows in accordance with one or more of characteristics of those traffic flows. | 12-31-2009 |
20100002715 | THERMALLY FLEXIBLE AND PERFORMANCE SCALABLE PACKET PROCESSING CIRCUIT CARD - Embodiments of the invention provide a packet processing circuit card with scalable performance at specified operational bandwidths over a given range of bandwidths. Advantageously, these embodiments enable a packet processing circuit card developed for a high bandwidth application to be used in a lower bandwidth application. This allows for cost-effective scaling of packet processing performance to the needs of the data communications system. | 01-07-2010 |
20100052766 | INTELLIGENT EMBEDDED POWER RAIL AND CONTROL SIGNAL SEQUENCER - A power sequencing method may use a state machine in a programmable sequencer to program relative timing of signals to activate different power rails attached to an integrated circuit. Input lines may specify the sequencing program. Alternatively, the programmable sequencer may use an EEPROM or other computer-readable medium to program itself with a particular image of the sequencing program. The programmable sequencer may be implemented by a Field Programmable Gate Array (FPGA). | 03-04-2010 |
20100058274 | FLEXIBLE HARDWARE UPGRADE MECHANISM FOR DATA COMMUNICATIONS EQUIPMENT - Partial reconfiguration of programmable logic devices may be achieved in a hardware-controlled manner without relying upon software. Upon installation of a new memory module, partial reconfiguration may enable alteration of a clock frequency without affecting operation of the software. When a new interface is installed, partial reconfiguration will allow a programmable logic device to adapt to either a serial or parallel interface before executing a standard boot-up sequence for the computer system. | 03-04-2010 |
20120127862 | INGRESS TRAFFIC FLOW CONTROL IN A DATA COMMUNICATIONS SYSTEM - Embodiments of the invention provide flow control of incoming data packets to data processing resources via a controller that can receive and react to advanced backpressure messages. These advanced backpressure messages are used to rate limit the data packets based one or more of the following factors: traffic class, traffic priority, destination port. The controller can also generate a traffic preference message to an upstream source of the data packets to inform the upstream unit of the most appropriate type of data that should be transmitted downstream at that time, thereby improving the likelihood of the transmitted data being processed in a proper and timely manner by the downstream data processing resources. Embodiments of the invention can improve the performance of a communications system during periods of congestion by ensuring that high-priority traffic has precedence over traffic of lower priority while maximizing utilization of the ingress data path bandwidth. | 05-24-2012 |
Patent application number | Description | Published |
20110027868 | APPARATUS AND METHOD FOR DEHYDRATING BIOLOGICAL MATERIALS - An apparatus for dehydrating a liquid sample of biological material has a microwave waveguide that is open to the atmosphere. It has a microwave generator, means for introducing a container of the material into the waveguide, means for evacuating the container, means for rotating the container and means for removing the container from the waveguide. It can include means for moving the container through the waveguide and for sealing it. In a dehydration method, a container of the liquid sample is put into the open waveguide, evacuated, rotated at high speed and microwaved. The container of dehydrated material is then removed from the waveguide. The apparatus and method are particularly suitable for dehydrating vaccines. | 02-03-2011 |
20110209354 | APPARATUS AND METHOD FOR DEHYDRATING BIOLOGICAL MATERIALS WITH FREEZING AND MICROWAVING - An apparatus and method for dehydrating biological materials, such as vaccines and microorganism cultures, in which the materials are dehydrated in an evacuated container which is in a microwave waveguide that is open to the atmosphere. The apparatus comprises means for freezing the container of biological material, a microwave generator, a waveguide, means for introducing the container into the waveguide, means for applying a vacuum to the container and means for removing the dehydrated material from the waveguide. In the method of the invention, the container of biological material is put in a microwave waveguide open to the atmosphere, a vacuum is applied to the container, the material is frozen and is radiated to dehydrate it. The dehydrated material is then removed from the waveguide. | 09-01-2011 |