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Automobile audio system

  • US 7,724,909 B2
  • Filed: 10/31/2007
  • Issued: 05/25/2010
  • Est. Priority Date: 11/08/2002
  • Status: Active Grant
First Claim
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1. A method for operating an audio system having one or more equalization signal processes in a vehicle with a battery, the method comprising:

  • monitoring one or more operating conditions of the battery;

    comparing one or more of the monitored conditions of the battery to a predetermined state; and

    if one or more of the monitored operating conditions of the battery reaches the predetermined state, then adjusting one or more of equalization signal processes to change the frequency response of the audio system,wherein one of the equalization processes includes a high pass filter having a cutoff frequency, and the step of adjusting one or more of the equalization processes comprises raising the cutoff frequency of the high pass filter.

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