Lattice Semiconductor Corporation

Taliaferro Smith

Sergey Yarygin

The discovery of a topology of a network with an unknown topology can enable the selection of a data path within the network, and the establishment of a data stream over the selected data path. Routing tables mapping originating nodes to input ports can be created based on the receipt of discovery messages generated by the originating nodes. A source node can select a data path between the source node and a sink node in order to establish a data stream using the routing tables. Data paths can be selected based on, for instance, routing table bandwidth information, latency information, and/or distance information. Data streams can be established over the selected data path, and each node can release any reserved output bandwidth determined to be unnecessary for the data stream.

Stream creation with limited topology information

A device may communicate a delay request value to downstream devices in order to synchronize A/V streams. For example, rather than adding the delay required to synchronize audio and video streams, an A/V splitter may instead communicate to downstream devices, asking them to add the amount of delay desired.

Method for synchronizing A/V streams

Embodiments relate to identifying a topology of a network based on information identifying adjacent devices from each of the devices in the network. In one embodiment, each device identifies one or more adjacent devices within one hop and stores information identifying the one or more adjacent devices. A requesting device aggregates information identifying one or more adjacent devices of each device and identifies the topology of the network based on the aggregated information. By each device storing and transmitting information identifying adjacent devices connected within one hop, amount of information stored in each device and bandwidth of information exchanged can be reduced.

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San Jose, CA, United States of America

Taliaferro Smith