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Electro acoustic system built-in test and calibration method

  • US 20060039568A1
  • Filed: 01/06/2005
  • Published: 02/23/2006
  • Est. Priority Date: 08/20/2004
  • Status: Active Grant
First Claim
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1. An electro acoustic system built-in test and calibration method comprising the steps of:

  • (a) driving a self-test module to send a test signal through a first circuit device to an audio device to produce a test audio signal;

    (b) with at least one audio receiver to receive the test signal, for enabling the received test signal to be sent by the audio receiver to at least one second circuit device for converting into a feedback digital signal for comparing the linearity difference between the test signal and the feedback digital signal by the self-test module; and

    (c) determining if to adjust the parameter values of the first circuit device and the second circuit device to the optimized status subject to the linearity difference comparison result.

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