Hands-free voice communication apparatus with speakerphone...

Details Hands-free voice communication apparatus with speakerphone... Hands-free voice communication apparatus with speakerphone...

2011-06-14

2011-06-14

Goins, Davetta W (Department: 2614)

Telephonic communications

Terminal

Having loudspeaking conversation capability

C379S428020, C455S569100, C455S575100

Reexamination Certificate

active

07961869

ABSTRACT:
A hands-free voice communication apparatus includes a speakerphone and earpiece combo, a digital signal processing (DSP) module, and a communication module. The hands-free apparatus may be used as a speakerphone or an earpiece. The speakerphone and earpiece combo includes a loudspeaker and one or multiple microphones. The loudspeaker provides an acoustic output. Each microphone receives an acoustic input and provides an input signal. The DSP module performs digital signal processing on the input signals from the microphones and provides an output signal for the loudspeaker. The DSP module may perform digital signal processing with different sets of parameters for the speakerphone and earpiece modes. The communication module provides communication between the hands-free apparatus and a communication device, e.g., a cellular phone or a wireless PDA.

REFERENCES:
patent: 7003099 (2006-02-01), Zhang et al.
patent: 7415294 (2008-08-01), Zhang et al.
patent: 2004/0264610 (2004-12-01), Marro et al.
patent: 2005/0014537 (2005-01-01), Gammon et al.
patent: 2005/0037825 (2005-02-01), Faranda Cordella et al.
patent: 2005/0105740 (2005-05-01), Dyer

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