Method and apparatus for automatically adjusting reminder...

Details Method and apparatus for automatically adjusting reminder... Method and apparatus for automatically adjusting reminder...

2007-03-15

2011-10-18

Faulk, Devona (Department: 2614)

Electrical audio signal processing systems and devices

Including amplitude or volume control

Automatic

C381S083000, C381S093000, C381S096000, C381S107000, C381S104000, C455S567000

Reexamination Certificate

active

08041055

ABSTRACT:
A method and apparatus for automatically adjusting volume of an audio signal on a mobile device, comprising playing the audio signal at an initial volume, sampling the audio signal, estimating a transfer function based on an echo path characteristic between the played audio signal and sampled audio signal, selecting a volume policy based on the estimated transfer function, and adjusting the volume of the audio signal in accordance with the selected volume policy.

REFERENCES:
patent: 2003/0039352 (2003-02-01), Joncour et al.
patent: 2006/0083388 (2006-04-01), Rothschild
patent: 10039211 (2002-02-01), None
patent: 1047258 (2000-10-01), None
patent: 1278360 (2003-01-01), None
patent: WO 99/05850 (1999-02-01), None

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