摘要:
A method and apparatus in which a mobile network advantageously communicates data requests to neighboring data stores so that they may pre-fetch the data. In particular, in accordance with an illustrative embodiment of the present invention, a protocol is advantageously established whereby a local data store in a mobile network notifies neighboring data stores of data requests, and whereby the neighboring data stores advantageously pre-fetch the data that may be required, thereby advantageously avoiding cascading cache misses. Such notifications may advantageously reduce the number of cache misses, which in turn may advantageously reduce the latency to download data as the user moves around within the mobile network and changes data sources. Specifically, in accordance with an illustrative embodiment of the present invention, a protocol for communicating data requests between local storage centers in a network supporting mobile users is provided.
摘要:
A Multiple Bit Rate (MBR) video encoding system wherein a first video encoding at a first bit rate is performed based on the original video source material, and wherein the first video encoding generates and saves metadata relating to the encoding process. In typical block-based motion-compensated video encoding techniques, this metadata may comprise block motion search information including motion vectors and error information. This saved metadata is then used during one or more subsequent encodings at different bit rates to generate a plurality of video encodings at different bit rates. This approach provides a more efficient MBR video encoding system realization than by encoding at each bit rate independently.
摘要:
A device testing capability is presented herein. The device testing capability supports automated testing of media devices (e.g., cameras, microphones, speakers, or the like) for verifying that the media devices are functioning properly. The device testing capability may support automated verification by an endpoint that one or more media devices or one or more sets of media devices associated with endpoint are functioning properly. For example, the device testing capability may support automated verification by a computer that a camera associated with the computer is functioning properly. For example, the device testing capability may support automated verification by a computer that a speaker and a microphone that are associated with the computer are functioning properly. The device testing capability may support automated verification, by a management system, of the proper functioning of media devices associated with endpoints in a set of endpoints.
摘要:
In a sensor system, an edge element receives data from at least one mobile sensor, and sends the data which may be preprocessed by the edge element to a server for further processing. The edge element may communicate to the mobile sensor to change a value of a run-time parameter in the mobile sensor to affect its operation. The edge element may also cause the mobile sensor to upgrade its firmware. When the mobile sensor is about to leave communication coverage of the edge element, the latter may initiate a peer-to-peer handover of the control and administration of the mobile sensor to another edge element in the sensor system.
摘要:
An exemplary method of determining location information includes transmitting a modeling signal from each of a plurality of detectors. Each of the plurality of detectors receives at least one of the transmitted modeling signals from the other detectors. At least one characteristic of each of the received modeling signals is determined. A signal propagation model for an area near each of the detectors is automatically determined based on the characteristic of each of the received modeling signals. The determined propagation model indicates an effect on a signal received within the corresponding area.
摘要:
A replica/cache locator, a method to locate replication tables and caches in an overlay network having multiple nodes and an overlay network. In one embodiment, the method includes: (1) determining a network distance between a first node of the multiple nodes in the overlay network and each of the remaining multiple nodes, (2) calculating m clusters of the multiple nodes based on the network distances and (3) designating at least a single node from the m clusters to include a replication table of the first node.
摘要:
There is provided a system and method for prioritizing session initiation protocol (“SIP”) messages. More specifically, in one embodiment, there is provided a method of prioritizing SIP messages in a network, the method comprising receiving SIP messages in a first order from one or more other servers of the network, wherein each of the received SIP messages comprises one or more priority indicators, scheduling the received SIP messages into a second order based on one or more of the priority indicators, and processing the scheduled SIP messages in the second order.