Circuit for sensing telephone line conditions

Details Circuit for sensing telephone line conditions Circuit for sensing telephone line conditions

1994-12-14

1998-06-16

Zele, Krista

Telephonic communications

Supervisory or control line signaling

Using line or loop condition detection

379 27, 379 30, 379164, 379382, H04M 100, H04M 1100

Patent

active

057683654

ABSTRACT:
A circuit for sensing telephone line conditions, comprising: high impedance termination means across the telephone line; means for accumulating charge through the high impedance termination means; and electrical isolator means intermediate the means for accumulating charge and voltage detecting means.

REFERENCES:
patent: 4220825 (1980-09-01), Fahey
patent: 4958371 (1990-09-01), Damoci et al.
patent: 5111802 (1992-05-01), McClure et al.
patent: 5140631 (1992-08-01), Stahl
patent: 5291545 (1994-03-01), Stahl
patent: 5388153 (1995-02-01), Burger et al.
patent: 5422939 (1995-06-01), Kramer et al.

Affiliated with

Also associated with

Rating

Circuit for sensing telephone line conditions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit for sensing telephone line conditions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for sensing telephone line conditions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1735477