Method and apparatus for DC feed

Details Method and apparatus for DC feed Method and apparatus for DC feed

2000-12-29

2009-12-08

Jamal, Alexander (Department: 2614)

Telephonic communications

Subscriber line or transmission line interface

Power supply

C379S413010

Reexamination Certificate

active

07630490

ABSTRACT:
A method and apparatus is provided for DC feed control for a line card. The method includes determining if the line card is operating in a current limit region of a DC feed curve and synthesizing a curve in the current limit region. The method further includes determining a loop voltage based on the synthesized curve, and applying the loop voltage to the subscriber line. The apparatus includes logic capable of determining if the line card is operating in a current limit region of a DC feed curve and capable of determining a loop voltage based on a synthesized curve in the current limit region. The apparatus further includes circuitry for applying the loop voltage to the subscriber line.

REFERENCES:
patent: 5809109 (1998-09-01), Moyal et al.
patent: 5878133 (1999-03-01), Zhou et al.
patent: 5889856 (1999-03-01), O'Toole et al.
patent: 5926544 (1999-07-01), Zhou
patent: 6173241 (2001-01-01), Zhou
patent: 6671373 (2003-12-01), Pang et al.
patent: 6735302 (2004-05-01), Caine et al.
patent: 6934384 (2005-08-01), Hein et al.

Affiliated with

Also associated with

Rating

Method and apparatus for DC feed does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for DC feed, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for DC feed will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4071465