82results about How to "Less latency" patented technology

A request for an information object at an address identified by a uniform resource locator (URL) is received; and the URL is mapped to a corresponding anycast address for the information object. Thereafter, the anycast address for the information object may be resolved to a unicast address for the information object, and the information object sent to the client. The request may be received at an information object repository that is topologically closer to the client than any other information object repository. This closest information object repository may be selected according to specified performance metrics, such as: average delay from the selected information object repository to a source of the request, average processing delay at the selected information object repository, reliability of a path from the selected information object repository, available bandwidth in said path, and loads on the selected information object repository.

Some embodiments provide an end-to-end federated CDN solution that assimilates a transparent caching server that is operated by a transparent caching server operator into a CDN that independently operates CDN caching servers. Specifically, the logs from the transparent caching server are assimilated into the CDN by aggregating the logs from the transparent caching server and processing the transparent caching server logs to identify network usage for content of a CDN content provider customer that is delivered by the transparent caching server. The network usage is then combined with the network usage that tracked by the CDN caching servers in order to provide comprehensive report metrics for the content provider customer and to bill the content provider customer for all network usage related to delivering the content provider customer's content irrespective of whether the content was delivered by a transparent caching server or a CDN caching server.

Some embodiments provide a method and system for efficiently transferring medical images. Some embodiments receive a medical image in a first platform dependent format of a Picture Archiving and Communication System (PACS). The first platform dependent format is one that is accessible by a first format compliant device that includes a library that specifies how to decode the first format. Some embodiments transform the medical image from the first format to a second format. The second format includes decoded content of the first format that is viewable on a first format non-compliant device. The transformed image is then passed to the device for viewing. Additionally, some embodiments efficiently transfer medical images by identifying image settings for one or more devices and by passing requested images that are optimized by resizing the images according to the image settings of the requesting device.

A system for transparent switching of management sessions utilizing in-band and out-of-band technologies is provided. The system provides continuous access to the managed system(s) by combining in-band tools, which generally require lower network bandwidth and provide better response time with less latency when the system under management is in-service, with out-of-band tools that provide continued access to the system under management when the network interface or operating system become unstable or the system in placed by an operator or falls unexpectedly to an out-of-service condition.

A printing system comprised of a printer, a plurality of processing nodes, each processing node being disposed for processing a portion of a print job into a printer dependent format, and a processing manager for spooling the print job into selectively sized chunks and assigning the chunks to selected ones of the nodes for parallel processing of the chunks by the processing nodes into the printer dependent format. The chunks are selectively sized from at least one page to an entire size of the print job in accordance with predetermined splitting factors for enhancing printer printing efficiency. The operating of the printing system includes a method for parallel processing of a print job with a plurality of processing nodes into a printer-ready format for printing the print job, wherein operating modes are provided for: auto-recovery in response to a page fault by executing an auto recovery in serial mode of operation; auto-discovery of system hardware resources; and parallel processing of protected PostScript print jobs.

According to one embodiment of the present invention, a network adapter is provided that is used in the system to permit data communication among external data exchanging devices and an input / output (I / O) controller residing in the system. The adapter includes one or more interfaces that may be coupled to an electrical backplane in the system. The backplane is coupled to the controller, and is configured to permit communication between the controller and the adapter when the interfaces are coupled to the backplane. The adapter also includes an integrated switching system that has a first set of ports that may be coupled to the data exchanging devices and a second set of ports that may couple the switching system to the controller when the one or more interfaces are coupled to the backplane.

In a network communication system involving a client and a server, communications are separated and forwarded into multiple subsystems for processing independently and concurrently. A protocol offloading system for processing information transmitted between a client and a server is provided. The protocol offloading system includes a first subsystem for processing protocol information and a second subsystem, independent of the first subsystem, for processing the actual data.

A system for transparent switching of management sessions utilizing in-band and out-of-band technologies is provided. The system provides continuous access to the managed system(s) by combining in-band tools, which generally require lower network bandwidth and provide better response time with less latency when the system under management is in-service, with out-of-band tools that provide continued access to the system under management when the network interface or operating system become unstable or the system in placed by an operator or falls unexpectedly to an out-of-service condition.

A block-code-based structure that allows cross-packet coding of data using a sliding window. In this structure, each transmitted packet contains both information symbols and parity symbols generated by the information in previous packets. This code structure allows a receiver to recover lost packets without additional transmissions. If enough packets have been lost so that the receiver cannot recover one or more of them, new parity symbols can be generated and transmitted as additional packets. The parity symbols in these additional packets may be used by multiple receivers. Thus, the sliding window block code reduces retransmission overhead, particularly for multicast applications. Furthermore, the sliding window structure does not produce an encoding delay between the arrival of data and its transmission and reduces the decoding delay between the loss of a packet and its recovery.

A method and a file format transformation system (FFTS) for transforming marked-up content in a first file format (FFF) to a second file format (SFF) that enables automated browser based pagination are provided. The FFTS reflows marked-up content of the FFF into a continuous page. The FFTS generates and appends tags to spaces and block elements identified in the reflown marked-up content of the FFF. For each space and block element, the FFTS determines and tags line breaks in the reflown marked-up content. For each line break, the FFTS identifies, tags, and positions anchored floats and footnotes on a current page based on space availability. The FFTS positions page breaks in the continuous page based on a configurable page height and the line breaks. The FFTS groups the marked-up content, inserts pagination elements and renders the grouped marked-up content in the SFF based on a selected level of reversibility.

A data processing apparatus and method are provided for performing address translation in response to a memory access request issued by processing circuitry of the data processing apparatus and specifying a virtual address for a data item. Address translation circuitry performs an address translation process with reference to at least one descriptor provided by at least one page table, in order to produce a modified memory access request specifying a physical address for the data item. The address translation circuitry includes page table walk circuitry configured to generate at least one page table walk request in order to retrieve the at least one descriptor required for the address translation process. In addition, walk ahead circuitry is located in a path between the address translation circuitry and a memory device containing the at least one page table. The walk ahead circuitry comprises detection circuitry used to detect a memory page table walk request generated by the page table walk circuitry of the address translation circuitry for a descriptor in a page table. In addition, the walk ahead circuitry has further request generation circuitry which is used to generate a prefetch memory request in order to prefetch data from the memory device at a physical address determined with reference to the descriptor requested by the detected memory page table walk request. This prefetched data may be another descriptor required as part of the address translation process, or may be the actual data item being requested by the processing circuitry. Such an approach can significantly reduce latency associated with the address translation process.

Any number of computers join a session of an online video conference facilitated by a server of a central computer. Each computer sends to the server participant metadata including a role for each computer (e.g., "tutor" or "student") and streaming information to facilitate streaming between other computers. The server sends the participant metadata to all other computers in the session. A computer decides to subscribe to a video stream of another computer only if that other computer has a role of "tutor." The tutor computer subscribes to video streams from all student computers. A peer-to-peer communication platform such as WebRTC facilitates communications between computers but does not pass any video or audio streams via the central computer. The tutor computer subscribes to students who are speaking. A student computer subscribes to a video stream from another student computer if the download and upload speeds respectively are above a certain threshold.

The present invention provides a system for transmitting interacting data between neighboring BSs via a MS and a method thereof The system comprises a first BS which transmits the interacting data to the MS, and a MS which receives the interacting data from the first BS and transmits the received interacting data to a second BS that neighbors to the first BS. The invention also provides a communication system and a method thereof, wherein a MS communicates with a first BS using an established first communication channel, and the MS to communicates with the second BS using an established second communication channel. The system of the invention uses a MS within the overlapped coverage area of neighboring BSs to perform transmission of interacting data such as control information for coordination, so as to reduce latency required for interacting data transmission between neighboring BSs. Compared to legacy BS coordination via a backbone, the BS coordination via a MS of the invention is predictable and requires less latency.

A microprocessor having a plurality of call / return stacks (CRS) correctly resolves a call or return instruction rather than issuing the instruction to execution units of the microprocessor to be resolved. The microprocessor fetches a call or return instruction and determines whether the instruction is the first call or return instruction fetched after fetching a conditional branch instruction that has yet to be resolved. The microprocessor copies the contents of a current CRS to another CRS and designates the other CRS as the current CRS, if the state exists. The microprocessor pushes the address of the next sequential instruction following the call instruction onto the current CRS and fetches an instruction at the call instruction target address if the instruction is a call instruction. The microprocessor pops a second return address from the current CRS and fetches an instruction at the second return address, if the instruction is a return instruction.

A communication device having an RF power amplifier stage with a Cartesian feedback loop is provided. The loop has forward paths whose outputs are combined to form an output signal that is fed back to a single feedback path. Each forward path has a common path with a filter that filters the overall loop response and a unique split path. The main and auxiliary split paths have a power amplifier and carry signals respectively of lower and higher frequencies. The auxiliary amplifier is faster than the main amplifier. Different phases of the carrier signal are used during upconversion such that the overall phase response through the split paths is equal. Instability recovery problems introduced by higher-order loop filters are mitigated by baseband loop filters with switchable order. Upon detecting instability, the loop filter order is reduced and is subsequently increased after eliminating the unstable operation.

A beacon-augmented pose estimation system includes positionable beacons that can determine their own 3-D geospatial coordinates and transmit those coordinates back to the pose object. An imaging sensor images the field-of-view of the pose object to provide 2-D image coordinates for any of the beacons in the FOV. A pose object controller processes the sets of 3-D geospatial coordinates and 2-D image coordinates to refine a pose estimate of the pose object. The positionable beacons may include both static beacons that are pre-positioned and mobile beacons that are command-guided to position themselves in the pose object's likely or actual FOV.

A wireless telecommunications system that mitigates infra-symbol interference due to Doppler-shift and multipath. Embodiments of the present invention are particularly advantageous for wireless telecommunications systems that operate in high-mobility environments, including high-speed trains and airplanes.

A data processing apparatus and method are provided for performing address translation in response to a memory access request issued by processing circuitry of the data processing apparatus and specifying a virtual address for a data item. Address translation circuitry performs an address translation process with reference to at least one descriptor provided by at least one page table, in order to produce a modified memory access request specifying a physical address for the data item. The address translation circuitry includes page table walk circuitry configured to generate at least one page table walk request in order to retrieve the at least one descriptor required for the address translation process. In addition, walk ahead circuitry is located in a path between the address translation circuitry and a memory device containing the at least one page table. The walk ahead circuitry comprises detection circuitry used to detect a memory page table walk request generated by the page table walk circuitry of the address translation circuitry for a descriptor in a page table. In addition, the walk ahead circuitry has further request generation circuitry which is used to generate a prefetch memory request in order to prefetch data from the memory device at a physical address determined with reference to the descriptor requested by the detected memory page table walk request. This prefetched data may be another descriptor required as part of the address translation process, or may be the actual data item being requested by the processing circuitry. Such an approach can significantly reduce latency associated with the address translation process.

An apparatus for reducing session related message size includes a processing element. The processing element may be configured to determine a domain-wide unique identifier and generate a message including a first field for identifying a message sequence associated with the message and a second field including a tag. The second field including the tag may be associated with an identifier of a source or recipient of the message. At least one of the first and second fields may be without data. The processing element may be further configured to include, in the message, a third field comprising at least the domain-wide unique identifier. The third field may be associated with data otherwise intended for the first and second fields.

A method and apparatus for transitioning between radio link protocols in a packet-based real-time media communication system. A wireless communication device such as a cell phone will operate under one radio link protocol (such as IS-856, also known as 1xEV-DO) to engage in packet-based signaling for setup of a packet-based real-time media session such as a push-to-talk session. Once the session is set up, the wireless communication device will then automatically transition to operate under a different radio link protocol (such as IS-2000, also known as 1xRTT), and will engage in packet-based real-time media communication in the session over that different radio link protocol. Preferably, the radio link protocol used for session setup signaling will provide for reduced setup latency, while the radio link protocol used for bearer communication in the session will provide for reduced jitter and improved real-time media communication.

Some embodiments provide an end-to-end federated CDN solution that assimilates a transparent caching server that is operated by a transparent caching server operator into a CDN that independently operates CDN caching servers. Specifically, the logs from the transparent caching server are assimilated into the CDN by aggregating the logs from the transparent caching server and processing the transparent caching server logs to identify network usage for content of a CDN content provider customer that is delivered by the transparent caching server. The network usage is then combined with the network usage that tracked by the CDN caching servers in order to provide comprehensive report metrics for the content provider customer and to bill the content provider customer for all network usage related to delivering the content provider customer's content irrespective of whether the content was delivered by a transparent caching server or a CDN caching server.

A branch of CRC resources is configured to process back-to-back TLPs in a PCIe architecture. A state machine receives back-to-back TLPs and generates carrier signals, which it then routes to the branch of CRC resources. These signals are used to align the back-to-back TLPs such that a LCRC for each of the back-to-back TLPs is calculated by the branch of CRC resources at line speed. The system and method allow substantial gate-count savings to be realized, as the present invention minimizes the number of components necessary to achieve the desired results.

A simplified coherency controller supports multiple exclusively active fully coherent agent interfaces and any number of active I / O (partially) coherent agent interfaces. A state controller determines which fully coherent agent is active. Multiple fully coherent agents can be simultaneously active during a short period of a transition of processing from one to another processor. Multiple fully coherent agents can be simultaneously active, though without a mutually consistent view of memory, which is practical in cases such as when running multiple operating systems on different processors.

A printing system comprised of a printer, a plurality of processing nodes, each processing node being disposed for processing a portion of a print job into a printer dependent format, and a processing manager for spooling the print job into selectively sized chunks and assigning the chunks to selected ones of the nodes for parallel processing of the chunks by the processing nodes into the printer dependent format. The chunks are selectively sized from at least one page to an entire size of the print job in accordance with predetermined splitting factors for enhancing printer printing efficiency.

A method and system for wireless communication between a moving vehicle, such as a train, and a remote server through at least one external mobile network are disclosed. The communication system includes at least one router in the train for receiving and transmitting wireless data communication to and from a stationary communication server outside the train through at least one exterior mobile network via at least one antenna. The router includes a control unit configured to allocate bandwidth according to a predefined packet policy to streams of data packets which are matched to the predefined packet policies, providing for a very efficient bandwidth management in a wireless network within a train. Hereby, is easy to prioritize voice-over-IP (VOIP) and / or VPN traffic over video traffic.

A printing system comprised of a printer, a plurality of processing nodes, each processing node being disposed for processing a portion of a print job into a printer dependent format, and a processing manager for spooling the print job into selectively sized chunks and assigning the chunks to selected ones of the nodes for parallel processing of the chunks by the processing nodes into the printer dependent format. The chunks are selectively sized from at least one page to an entire size of the print job in accordance with predetermined splitting factors for enhancing printer printing efficiency. The operating of the printing system includes a method for parallel processing of a print job with a plurality of processing nodes into a printer-ready format for printing the print job, wherein the processing nodes communicate with a virtual disk transfer system and control usage thereof by monitoring available space in the virtual disk transfer system.

A virtual user interface for a user-controlled device is provided that allows a person who is associated with the user-controlled device to make user selections from a plurality of selection options to interact with a simulated environment. The virtual user interface is a virtual three-dimensional user interface object having the plurality of selection options on its outer surface. The plurality of selection options is distributed over different portions of the outer surface of the virtual three-dimensional user interface object, and the plurality of selection options are grouped into a plurality of subsets of selection options. The virtual three-dimensional user interface object is rotatable by user interaction of the person with the virtual three-dimensional user interface object to a predefined position in space that causes one of the subsets of selection options to be in focus, thereby enabling the selection options of the subset in focus to be enabled for user selection. The remaining subsets of selection options are not in focus and thus are not enabled for user selection.

A wearable motion tracking system (12) for capturing a relative position between a first body part (101) and a second body part (103) of said user (100) comprising a first measurement device (120a), a second measurement device (121a) and a computing device (150) that are configured such as to obtain by said computing device (150) a plurality of measurements between said first and second measurement devices (120a, 121a). Based on the plurality of measurements that comprises at least one distance measurement between said first and second measurement devices (120a, 121a) said computing device (150) is configured to compute, in three dimensions, a position of said second measurement device (121a) relative to said first measurement device (120a) for tracking the position of said second body part (103) relative to said first body part (101). The present invention further relates to a method of motion tracking.

Detection and tracking of a totem by a touchscreen touch controller mitigates false touches and false inputs by adapting capacitance at the totem feet. Totem feet have a capacitance that falls between a noise threshold and a finger touch threshold so that a pattern of the totem feet is detected separate from finger touches. Active capacitance is applied to one or more of the totem feet to enhance totem detection, such as by highlighting totem contact points of interest to an end user for a rotational versus linear input.