Method and system for using an audio transducer as both an...

Details Method and system for using an audio transducer as both an... Method and system for using an audio transducer as both an...

2006-05-09

2006-05-09

Grier, Laura A. (Department: 2644)

Electrical audio signal processing systems and devices

Monitoring/measuring of audio devices

Loudspeaker operation

C381S111000, C381S058000, C381S096000

Reexamination Certificate

active

07043028

ABSTRACT:
A method and system for using an audio transducer as both an input device and an output device is disclosed. The method and system include digitally modulating a primary input signal for driving the transducer as an output device, sampling an output signal generated from the transducer during off times of the modulated signal, and determining an input signal from the sampled output signal.

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patent: 2003/0118193 (2003-06-01), Leske et al.
patent: 2004/0161122 (2004-08-01), Nielsen

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