Echo/noise canceling device for use with personal computers

Details Echo/noise canceling device for use with personal computers Echo/noise canceling device for use with personal computers

2005-11-08

2005-11-08

Tran, Sinh (Department: 2644)

Electrical audio signal processing systems and devices

Acoustical noise or sound cancellation

Particular transducer or enclosure structure

C381S066000, C381S094500, C370S286000, C370S289000, C379S406010, C379S392010

Reexamination Certificate

active

06963648

ABSTRACT:
An adapter for reducing echo and noise in internet telephony for use with personal computers. The device employs analog circuitry to provide signal filters and delay which act together to reduce line induced echo and background noise, thus providing a clear voice communication channel. The device is readily inserted between standard microphones and speakers employed in the personal computer.

REFERENCES:
patent: 5657384 (1997-08-01), Staudacher et al.
patent: 6137879 (2000-10-01), Papadopoulos et al.
patent: 6237025 (2001-05-01), Ludwig et al.

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