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Speech recognition wake-up of a handheld portable electronic device

  • US 10,332,524 B2
  • Filed: 07/21/2017
  • Issued: 06/25/2019
  • Est. Priority Date: 10/11/2013
  • Status: Active Grant
First Claim
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1. A handheld portable electronic device comprising:

  • a plurality of microphones to pick up speech of a user, including a first microphone differently positioned than a second microphone;

    a first processor communicatively coupled with the plurality of microphones and having a power-saving state and a non-power-saving state; and

    a second processor communicatively coupled with the first processor and the plurality of microphones, the second processor configured to;

    receive a plurality of audio signals from the plurality of microphones;

    process each of the audio signals to recognize a command in any one of the audio signals;

    identify a preferred microphone being preferable for speech pick up, based on results of the process of recognizing the command;

    and signal the first processor to transition from the power-saving state to the non-power-saving state in response to recognizing the command in one or more of the audio signals, wherein, during the non-power-saving state, the first processor performs speech recognition on an audio signal from the identified preferred microphone.

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