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Data framing for adaptive-block-length coding system

  • US 6,226,608 B1
  • Filed: 01/28/1999
  • Issued: 05/01/2001
  • Est. Priority Date: 01/28/1999
  • Status: Expired due to Term
First Claim
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1. A method for audio encoding that comprises steps performing the acts of:

  • receiving a reference signal conveying alignment of video information frames in a sequence of video information frames in which adjacent frames are separated by a frame interval;

    receiving an audio signal conveying audio information;

    analyzing the audio signal to identify characteristics of the audio information;

    generating a control signal in response to the characteristics of the audio information, wherein the control signal conveys segment lengths for segments of the audio information in a sequence of overlapping segments, a respective segment having a respective overlap interval with an adjacent segment and the sequence having a length equal to the frame interval plus a frame overlap interval;

    applying an adaptive block encoding process to the overlapping segments in the sequence to generate a plurality of blocks of encoded information, wherein the block encoding process adapts in response to the control signal; and

    assembling the plurality of blocks of encoded information and control information conveying the segment lengths to form an encoded information frame that is aligned with the reference signal.

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