EP 1088440 A1 20010404 - DAA CIRCUITRY
Title (en)
DAA CIRCUITRY
Title (de)
DAA-SCHALTUNG
Title (fr)
CIRCUIT DAA
Publication
Application
Priority
- US 9911377 W 19990521
- US 9848998 A 19980616
- US 9762198 A 19980616
Abstract (en)
[origin: WO9966704A1] A digital direct access arrangement (DAA) circuitry (110) may be used to terminate the telephone connections at the user's end that provides a communication path for signals to and from the phone lines. Briefly described, the DAA (110) provides a programmable means for the DC termination (1617) for a variety of international phone standards. The invention may also be utilized with means for transmitting and receiving a signal across a capacitive isolation barrier (120). More particularly, a DC holding circuit is provided in which a programmable DC current limiting mode is available. In the current limiting mode, power may be dissipated in devices external to a DAA integrated circuit (110). Moreover, much of the power may be dissipated in external passive devices, such as resistors.
IPC 1-7
IPC 8 full level
H04M 11/00 (2006.01); H04M 11/06 (2006.01); H04M 19/00 (2006.01)
CPC (source: EP KR)
H04M 11/00 (2013.01 - KR); H04M 11/06 (2013.01 - EP)
Designated contracting state (EPC)
DE DK ES FI FR GB IT SE
DOCDB simple family (publication)
WO 9966704 A1 19991223; AU 4095399 A 20000105; EP 1088440 A1 20010404; EP 1088440 A4 20050713; JP 2002518944 A 20020625; JP 4024477 B2 20071219; KR 100423246 B1 20040318; KR 20010052867 A 20010625
DOCDB simple family (application)
US 9911377 W 19990521; AU 4095399 A 19990521; EP 99924456 A 19990521; JP 2000555418 A 19990521; KR 20007014204 A 20001214