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US 2015/0319405 A1Published application
Method for Synchronizing A/V Streams
AssigneeSilicon Image, Inc.
InventorsSergey Yarygin, Taliaferro Smith
Life of this patent
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Abstract
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.
Claims20
A method for synchronizing A/V streams, the method comprising:
- receiving at least two latency values from at least two downstream devices, the latency values representing downstream latency experienced by A/V streams transmitted to the downstream devices;
- calculating a delay request value based on the received latency values, the delay request value representing additional downstream delay to be added to a first of the A/V streams in order to better synchronize the A/V streams;
- transmitting the delay request value to a first of the downstream devices, the first downstream device also receiving the first A/V stream;
- and
- transmitting the A/V streams to the downstream devices.
2 more elements
An A/V repeater device comprising a transmitter section and a processor;
- the A/V repeater device configured to receive at least two latency values from at least two downstream devices, the latency values representing downstream latency experienced by A/V streams transmitted to the downstream devices;
- the processor configured to calculate a delay request value based on the received latency values, the delay request value representing additional downstream delay to be added to a first of the A/V streams in order to better synchronize the A/V streams;
- and the transmitter section configured to transmit the delay request value to a first of the downstream devices and to transmit the first A/V stream to the first downstream device.
Dependencies are inferred from the claim text.