Management of presentation time in a digital media presentation system with variable rate presentation capability

CAFC
  • US 8,068,108 B2
  • Filed: 03/03/2010
  • Issued: 11/29/2011
  • Est. Priority Date: 12/11/2001
  • Status: Active Grant
First Claim
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1. A method, performed by at least one machine, for use in a rendering system for rendering temporal sequence presentation data in a machine-implemented rendering system, the temporal sequence presentation data being tangibly stored in a first computer-readable medium, the method comprising steps of:

  • (A) maintaining a value of a presentation time parameter tangibly stored in a second computer-readable medium and representing an amount of time elapsed during rendering of a portion of the temporal sequence presentation data;

    (B) maintaining a value of a data time parameter tangibly stored in a third computer-readable medium and representing an amount of time required by the rendering system to render the portion of the temporal sequence presentation data at a default presentation rate;

    (C) receiving request for the value of the presentation time parameter; and

    (D) returning the value of the presentation time parameter to a first component of the rendering system in response to the request;

    wherein the value of the presentation time parameter is not equal to the value of the data time parameter.

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