Method and system for using an audio transducer as both an input and output device in full duplex operation
US7043028B2 · kind B2 · utility
5Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2001 |
| Grant date | May 9, 2006 |
| Priority date | — |
| Expiry date | Apr 1, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.