Modem apparatus

Details Modem apparatus Modem apparatus

1998-06-17

2000-12-26

Kuntz, Curtis A.

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

379 9328, 379 9001, H04M 1100

Patent

active

061671215

ABSTRACT:
A modem apparatus performs modulation and demodulation between a telephone circuit and a terminal apparatus. The modem apparatus includes a modem circuit, and a codec circuit performing conversion between an analog signal and a digital signal. Capacitors are provided between the modem circuit and the codec circuit, a signal supplied from the terminal apparatus and a signal supplied from the codec circuit being supplied to the modem circuit, and a signal supplied from the telephone circuit and a signal supplied from the modem circuit being supplied to the codec circuit.

REFERENCES:
patent: 4570034 (1986-02-01), Serrano
patent: 5131025 (1992-07-01), Hamasaki
patent: 5442694 (1995-08-01), Chitrapu et al.
patent: 5655010 (1997-08-01), Bingel

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