Echo reduction for a headset or handset

Details Echo reduction for a headset or handset Echo reduction for a headset or handset

2006-05-02

2006-05-02

Harold, Jefferey F. (Department: 2646)

Telephonic communications

Substation or terminal circuitry

For loudspeaking terminal

C379S387010, C379S093050, C379S390040

Reexamination Certificate

active

07039179

ABSTRACT:
The present invention provides an echo reduction apparatus, system, and method that advantageously reduces echo when communicating over packet-switched networks. An echo reduction apparatus, including echo reduction circuit, operably couples a headset or handset device to an audio source that is capable of transmitting a sound signal. The echo reduction circuit receives the sound signal from the audio source and a transmit signal from the headset or handset device and provides an adjusted sound signal to the audio source. Advantageously, a variety of headsets and handsets may be used in accordance with the present invention with reduced caller echo and without the need to purchase new headsets or handsets.

REFERENCES:
patent: 5619508 (1997-04-01), Davis et al.

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