Network system and method for automatically interfacing with...

Details Network system and method for automatically interfacing with... Network system and method for automatically interfacing with...

2006-12-05

2006-12-05

Ramakrishnaiah, Melur (Department: 2614)

Telephonic communications

Telephone line or system combined with diverse electrical...

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

C379S093050, C379S093090

Reexamination Certificate

active

07145992

ABSTRACT:
A communication apparatus including a network control unit for interfacing with a telephone line. The network control unit comprises a direct current circuit in which a loop state direct current can flow, and a direct current limiting device for limiting the loop state direct current to a prescribed value when communication with a foreign country that has adopted a different communication standard is performed.

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U.S. Appl. No. 09/422,675, filed Oct. 21, 1999.

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