FLOW CONTROL PROTOCOL FOR AN AUDIO BUS
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United States of America Patent
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Issued Date -
Jan 18, 2018
app pub date -
Jun 26, 2017
filing date -
Jul 14, 2016
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Abstract
A flow control protocol for an audio bus is disclosed. In an exemplary aspect, an audio source may push content to an audio sink over one or more cascaded audio bus segments or links. The audio source will send an indication to the audio sink that data is coming, and the audio sink should manipulate the data accordingly. Conversely, the audio source may also send an indication to the audio sink that, in a particular sample-event in a particular future sample-window, no data is present and the audio sink may disregard any bits in the corresponding sample-event. In another exemplary aspect, the audio sink may request data from the audio source with a receive ready indication. The audio source then sends data in a corresponding time slot for processing by the audio sink. Likewise, the audio sink may provide an indication that the audio sink cannot accept more data through a negative receive ready indication.
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