×

Methods and devices for adaptive ringtone generation

  • US 8,995,683 B2
  • Filed: 12/29/2006
  • Issued: 03/31/2015
  • Est. Priority Date: 12/29/2006
  • Status: Active Grant
First Claim
Patent Images

1. A method of a mobile communication device for adapting a ringtone output in accordance with an ambient noise, a signal-to-noise ratio, and a frequency response of a transducer of the mobile communication device, the method comprising:

  • detecting, by the mobile communication device, the ambient noise to generate an ambient noise signal;

    processing, by the mobile communication device, the ambient noise signal to determine an ambient noise volume;

    receiving, by the mobile communication device, an incoming communication signal;

    generating, by the mobile communication device and in response to the incoming communication signal, the ringtone output, wherein generating the ringtone output comprises;

    when the ambient noise volume is not greater than a threshold value, increasing a volume of the generated ringtone output over a predetermined period of time in accordance with a ringtone ramping process; and

    when the ambient noise volume is greater than the threshold value;

    processing, by the mobile communication device, the generated ambient noise signal to determine a noise frequency spectrum;

    processing, by the mobile communication device, the determined noise frequency spectrum to determine predominant frequencies of the ambient noise;

    generating, by the mobile communication device, a ringtone signal prior to generating the ringtone output;

    applying, by the mobile communication device, a filter to the generated ringtone signal to increase the signal-to-noise ratio for generating a filtered ringtone signal, the filter being configured to increase, relative to an amplitude of the generated ringtone signal at the predominant frequencies of the ambient noise, an amplitude of the generated ringtone signal at a frequency that is not one of the predominant frequencies of the ambient noise; and

    outputting, by the transducer, the ringtone output according to the filtered ringtone signal and the frequency response of the transducer.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×