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ELECTRONIC DEVICE AND CONTROL METHOD

  • US 20150055802A1
  • Filed: 07/11/2014
  • Published: 02/26/2015
  • Est. Priority Date: 08/23/2013
  • Status: Active Grant
First Claim
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1. An electronic device comprising:

  • a microphone;

    a bias-supply device, configured to provide a first bias voltage to serve as an operation voltage of the microphone, when the electronic device is operated in a power-saving mode, such that the microphone transforms a voice signal into a first output signal; and

    a voice-recognition device, configured to receive the first output signal and output a control signal, when the first output signal has a predetermined signal, to enable the electronic device be operated in a normal operation mode and the bias-supply device to provide a second bias voltage that is higher than the first bias voltage to serve as the operation voltage of the microphone, such that the microphone transforms the voice signal into a second output signal and outputs the second signal to a core circuit.

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