Line break detection device and modem comprising such a device

Details Line break detection device and modem comprising such a device Line break detection device and modem comprising such a device

1996-12-19

1998-04-28

Kuntz, Curtis

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Testing of subscriber loop or terminal

379 3, 379410, 379411, 370291, H04M 124, H04M 322, H04M 908

Patent

active

057455490

ABSTRACT:
A modem for transmission and reception of data samples over a transmission line includes a transmission line break detection device having a correlation meter for providing a measure of the degree of correlation between transmitted and received data samples. Such device further includes a threshold meter for triggering a line break alarm when the correlation exceeds a threshold value. The correlation relates to a limited number of data samples occurring during a portion of an echo period for reception of an echo of transmitted data samples.

REFERENCES:
patent: 4311882 (1982-01-01), Johner
patent: 4539675 (1985-09-01), Fisher
patent: 4607146 (1986-08-01), Haass
patent: 4782512 (1988-11-01), Hutton
patent: 4969178 (1990-11-01), Chen
patent: 4970715 (1990-11-01), McMahan
patent: 4972368 (1990-11-01), O'Brien
patent: 4972406 (1990-11-01), Dedic
patent: 4985919 (1991-01-01), Naruse
patent: 4996703 (1991-02-01), Gray
patent: 5016271 (1991-05-01), Ford
patent: 5063563 (1991-11-01), Ikeda
patent: 5163044 (1992-11-01), Golden
patent: 5193112 (1993-03-01), Sano
patent: 5222119 (1993-06-01), Asano
patent: 5495470 (1996-02-01), Tyburski
patent: 5528661 (1996-06-01), Siu

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