Method and apparatus of measuring a subscriber line

Details Method and apparatus of measuring a subscriber line Method and apparatus of measuring a subscriber line

1990-08-17

1991-12-17

Schreyer, Stafford D.

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Testing of subscriber loop or terminal

324523, 324541, 178 63R, H04B 346, H04M 124

Patent

active

050739204

ABSTRACT:
A subscriber line measuring method and apparatus can charge a line capacitance of a telephone subscriber line in a very short time as compared with a prior art by charging the line capacitance by a predetermined current without use of a high resistor (100 k.OMEGA.) in a conventional measuring apparatus, and thereby can measure an impedance of the telephone subscriber line in a very short time with high accuracy.

REFERENCES:
patent: 4320338 (1982-03-01), Morris et al.
patent: 4845737 (1989-07-01), Ohlendorf et al.
"Measuring Device for Test of Subscriber Line Using Electronic Circuit", the 1981 National Convention 408 of Information and System Part of the Institute of Electronics, Communication Engineers of Japan.
IEEE, "Subscriber Line Testing for Digital Switching Office", vol. 29, No. 10, pp. 1434-1441.

Affiliated with

Also associated with

Rating

Method and apparatus of measuring a subscriber line 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 of measuring a subscriber line, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus of measuring a subscriber line will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-839334