×

Extraction and analysis of buffered audio data using multiple codec rates each greater than a low-power processor rate

  • US 9,992,745 B2
  • Filed: 05/30/2012
  • Issued: 06/05/2018
  • Est. Priority Date: 11/01/2011
  • Status: Active Grant
First Claim
Patent Images

1. A method comprising:

  • receiving audio data at an active coder/decoder (CODEC) that is coupled to a processor, wherein;

    the processor is configured to;

    transition in and out of a low-power state at a first rate; and

    operate in each of a first mode and a second mode,a ratio of CODEC activity to processor activity in the second mode is less than a ratio of CODEC activity to processor activity in the first mode,the CODEC is configured to operate at a second rate in the first mode,the CODEC is configured to operate at a third rate in the second mode,the second rate and the third rate are each greater than the first rate, andthe audio data is received at the CODEC while the processor is in the low-power state; and

    after the processor transitions out of the low-power state, retrieving buffered audio data corresponding to a plurality of audio frames from a buffer, the buffered audio data indicative of features of the audio data.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×