Device for transforming a digital signal into an acoustic...

Details Device for transforming a digital signal into an acoustic... Device for transforming a digital signal into an acoustic...

2003-04-10

2008-07-01

Kuntz, Curtis (Department: 2614)

Telephonic communications

Terminal accessory or auxiliary equipment

Including coupler

Reexamination Certificate

active

07394899

ABSTRACT:
A device for transforming a digital signal into an acoustic signal, making use of a standard phase modulation, that comprises a modem chip (1) with a phase modulation of known kind, used until now for the data transmission via cable, conceived and used only for a cable connection, for acquiring a digital signal through a serial inlet RS232 and for modulating the same according to a standard record V.22, and an acoustic transducer (2) of the piezoelectric kind guided by the modem chip (1).

REFERENCES:
patent: 6236889 (2001-05-01), Soykan et al.

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