360results about How to "Minimum delay" patented technology

Embodiments of the invention enable minimum latency site independent real-time video transport over packet switched networks. Some examples of real-time video transport are video conferencing and real-time or live video streaming. In one embodiment of the invention, a network node transmits live or real-tine audio and video signals, encapsulated as Internet Protocol (IP) data packets, to one or more nodes on the Internet or other IP network. One embodiment of the invention enables a user to move to different nodes or move nodes to different locations thereby providing site independence. Site independence is achieved by measuring and accounting for the jitter and delay between a transmitter and receiver based on the particular path between the transmitter and receiver independent of site location. The transmitter inserts timestamps and sequence numbers into packets and then transmits them. A receiver uses these timestamps to recover the transmitter's clock. The receiver stores the packets in a buffer that orders them by sequence number. The packets stay in the buffer for a fixed latency to compensate for possible network jitter and / or packet reordering. The combination of timestamp packet-processing, remote clock recovery and synchronization, fixed-latency receiver buffering, and error correction mechanisms help to preserve the quality of the received video, despite the significant network impairments generally encountered throughout the Internet and wireless networks.

A technique dynamically activates a secondary Traffic Engineering Label Switched Path (TE-LPs) at a secondary head-end node upon failure of a primary TE-LPs in a computer network. According to the novel technique, a primary head-end node establishes the primary TE-LPs having a primary bandwidth (BW) amount to a primary tail-end node. Also, the secondary head-end node establishes the secondary TE-LPS having zero BW to a secondary tail-end node (e.g., the same as the primary tail-end node). The secondary head-end node monitors the state of the primary TE-LPS, and in response to a failure (e.g., or other state change) substantially immediately adjusts the BW of the secondary TE-LPS to the primary BW amount (“activating” the TE-LPS). A “prior-hop” node to the primary and secondary head-end nodes originally forwarding traffic to the primary head-end node, may then begin forwarding traffic to the secondary head-end node, and thus onto the adjusted secondary TE-LPS.

A system and method that provide reduced latency in a video signal processing system. Various aspects of the present invention may comprise receiving a current request from a user for first video information. Such a request may, for example, be received with a user interface module. A first video stream and a second video stream may be received simultaneously, where the first video stream comprises the first video information currently requested by the user, and the second video stream comprises second video information not currently requested by the user. A video receiver module may, for example, perform such receiving. The first video stream may be processed to present the first video information to the user at the current time. Further, the second video stream may be pre-processed in preparation for being presented to the user in the future. A video processing module may, for example, perform such video stream processing.

A method for the self-organization of a plural-node communication network which involves (1) selecting a central coordinator (CCo) node from a collection of nodes initially lacking a CCo, (2) employing the selected CCo to oversee a procedure for discovering, from the mentioned node collection, all nodes which are optimally capable of being organized into a network, in the sense that all such discovered, capable nodes may effectively be organized to communicate bidirectionally with all other nodes, and (3), with respect to such discovered, organizable nodes, creating a network-global connectivity database in the form of a network-organizing communication topology table that describes enablement of bidirectional communication between all nodes. The discovering process includes discovering both non-hidden and hidden nodes, and identifying suitable proxy nodes which are non-hidden nodes, and which may effectively stand as intermediaries for enabling bidirectional communications between these otherwise hidden nodes and all other nodes, including, of course, the CCo.

A method for delivering media content includes receiving a request for media content from a client and identifying a first media file containing media content associated with the request. The first file has a first media format. The method further includes initiating creation of a second media file associated with the request and estimating one or more characteristic of the second media file. The second media file has a second media format. Additionally, the method includes generating media information for the second media file based on the estimated characteristics of the second media file and transmitting the media information to the client before creation of the second media file has been completed.