Line terminal for determining operational status of a U...

Details Line terminal for determining operational status of a U... Line terminal for determining operational status of a U...

2011-08-02

2011-08-02

Moe, Aung S (Department: 2474)

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

C370S241000, C379S027010

Reexamination Certificate

active

07991015

ABSTRACT:
A line terminal for determining operational status of a U interface includes a time presetting module, a current detecting module, a cycle selecting module, a timer, and a synchronization determining module. The time presetting module is for presetting a plurality of time cycles. The current detecting module is for detecting a loop current flowing via the U interface. The cycle selecting module is for selecting a time cycle from the plurality of time cycles. The timer is for timing during the time cycle. The synchronization determining module is for determining if a line terminal has been synchronized with a digital service unit. The operational status of U interface is determined to be working normally when the line terminal has been synchronized with the digital service unit. A method for determining the operational status of U interfaces is also provided.

REFERENCES:
patent: 5099497 (1992-03-01), Ohno et al.
patent: 5101401 (1992-03-01), Suzuki et al.
patent: 5577115 (1996-11-01), Deutsch et al.
patent: 5636202 (1997-06-01), Garney
patent: 6181748 (2001-01-01), Lin et al.
patent: 6301340 (2001-10-01), Sansom et al.
patent: 6320940 (2001-11-01), Oi
patent: 2004/0004976 (2004-01-01), Zhang et al.

Affiliated with

Also associated with

Rating

Line terminal for determining operational status of a U... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Line terminal for determining operational status of a U..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Line terminal for determining operational status of a U... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2719067