Invention Grant
US07978696B2 Redundant media packet streams 有权
冗余媒体包流

  • Patent Title: Redundant media packet streams
  • Patent Title (中): 冗余媒体包流
  • Application No.: US12308168
    Application Date: 2007-05-17
  • Publication No.: US07978696B2
    Publication Date: 2011-07-12
  • Inventor: Aidan WilliamsAndrew White
  • Applicant: Aidan WilliamsAndrew White
  • Applicant Address: AU Ultimo, NSW
  • Assignee: Audinate Pty Limited
  • Current Assignee: Audinate Pty Limited
  • Current Assignee Address: AU Ultimo, NSW
  • Agency: Jones Day
  • Priority: AU2006902741 20060517; AU2006906015 20061019
  • International Application: PCT/AU2007/000667 WO 20070517
  • International Announcement: WO2007/131296 WO 20071122
  • Main IPC: H04L12/56
  • IPC: H04L12/56
Redundant media packet streams
Abstract:
This invention concerns the transmitting and receiving of digital media packets, such as audio and video channels and lighting instructions. In particular, the invention concerns the transmitting and receiving of redundant media packet streams. Samples are extracted (556) from a first (904) and second (906) media packet stream. The extracted samples are written to a buffer (910) based on the output time of each sample (556). Extracted samples having the same output time are written to the same location in the buffer. Both media packet streams are simply processed all the way to the buffer without any particular knowledge that one of the packet streams is actually redundant. This simplifies the management of the redundant packet streams, such as eliminating the need for a “fail-over” switch and the concept of an “active stream”. The location is the storage space allocated to store one sample. The extracted sample written to the location may be written over another extracted sample from a different packet stream previously written to the location. These extracted samples written to the same location may be identical.
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