Method and apparatus for controlling a telephone ring signal
First Claim
1. Apparatus for controlling a notification signal produced by an electronic device, comprising:
- means for generating a noise signal indicative of an ambient noise level, said noise signal having a characteristic power spectrum;
processing means for receiving the noise signal and analyzing the power spectrum of the noise signal;
a transducer for generating a notification signal; and
control means, coupled to said processing means and said transducer, for selecting a notification signal frequency in response to the power spectrum of the noise signal and causing said transducer to oscillate at said selected frequency.
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Accused Products
Abstract
A telephone has a receiver, a transmitter, a control interface, an audio processor and a microprocessor. The audio processor includes a digital signal processor, an input audio unit coupled to a microphone, an output audio unit coupled to a speaker, and a ring signal controller coupled to a transducer/ringer. When an incoming call is received, the audio processor samples the microphone input signal, which is indicative of ambient noise, and performs a spectral analysis of the ambient noise. The audio processor then sets the ring frequency and the ring volume responsive to the ambient noise spectrum and the ring volume control level set by the user.
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Citations
15 Claims
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1. Apparatus for controlling a notification signal produced by an electronic device, comprising:
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means for generating a noise signal indicative of an ambient noise level, said noise signal having a characteristic power spectrum; processing means for receiving the noise signal and analyzing the power spectrum of the noise signal; a transducer for generating a notification signal; and control means, coupled to said processing means and said transducer, for selecting a notification signal frequency in response to the power spectrum of the noise signal and causing said transducer to oscillate at said selected frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of controlling a notification signal of an electronic device, comprising the steps of:
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generating a noise signal indicative of an ambient noise level, said noise signal having a characteristic power spectrum; analyzing the power spectrum of the noise signal; selecting a notification signal frequency in response to the power spectrum of the noise signal. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification