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Voice activity detection in communication devices for power saving

  • US 8,787,230 B2
  • Filed: 12/19/2011
  • Issued: 07/22/2014
  • Est. Priority Date: 12/19/2011
  • Status: Expired due to Fees
First Claim
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1. A method comprising:

  • receiving, at a first communication device, a radio frequency (RF) signal including a plurality of packets from a second communication device of a communication network;

    determining that the plurality of packets include audio data;

    determining a power level of each of a plurality of communication frequencies based, at least in part, on the audio data, wherein the plurality of communication frequencies are associated with an operating frequency band of the first communication device;

    determining whether the audio data associated with the plurality of packets includes voice information based, at least in part, on comparing the power level of each of the plurality of communication frequencies against a corresponding power level threshold; and

    switching to a power save mode at the first communication device based, at least in part, on determining that the audio data does not include voice information.

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