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Media extractor

  • US 8,750,282 B2
  • Filed: 02/09/2011
  • Issued: 06/10/2014
  • Est. Priority Date: 03/16/2010
  • Status: Active Grant
First Claim
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1. A system for generating at least one media stream from time-stamped packets received over a network, the system comprising:

  • a header engine configured to extract header information from the time-stamped packets including a stream identifier;

    a stream identifier filter configured to determine whether the stream identifier in the header information matches a subscribed media stream identifier stored in a memory device of a receiver of the system to identify a subscribed media stream;

    a media clock recovery device configured to generate a local media clock from timestamps in the time-stamped packets, wherein the local media clock is synchronized with a master media clock, where the local media clock includes a periodic signal indicative of a sampling rate of media stream samples included in the subscribed media stream;

    a microcode engine configured to route the media stream samples, which are extracted from the time-stamped packets, to at least one media interface in response to a determination by the stream identifier filter that the media stream samples are for at least one subscribed media stream; and

    the at least one media interface configured to generate the at least one media stream from the media stream samples in accordance with the local media clock.

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