Method and apparatus for preventing erroneous echoelimination an

Details Method and apparatus for preventing erroneous echoelimination an Method and apparatus for preventing erroneous echoelimination an

1990-03-26

1993-02-23

Smith, Jerry

Boots, shoes, and leggings

370 321, G06G 702, H04J 100

Patent

active

051896370

ABSTRACT:
In a telecommunication system, erroneous echo-elimination and equalization resulting from non-linearities of a D/A-converter and an A/D-converter are prevented. An error signal (e.sub.n) updates an adaptive echo-elimination filter and an adaptive equalization filter. The error signal (e.sub.n) also adjusts the values of specific adjustable devices, such as capacitors, in the converters to compensate for non-linearities in the converters. The error signal is used by logic devices to adjust the converters in accordance with various algorithms.

REFERENCES:
patent: 4129863 (1978-12-01), Gray et al.
patent: 4200863 (1980-04-01), Hodges et al.
patent: 4476456 (1984-10-01), Domogalla
patent: 4669116 (1987-05-01), Agazzi et al.
patent: 4746902 (1988-05-01), Tol et al.
patent: 4872011 (1989-10-01), Pelgrom et al.
patent: 4977591 (1990-12-01), Chen et al.
patent: 4999830 (1989-09-01), Agazzi
patent: 5001480 (1991-03-01), Ferry et al.

Affiliated with

Also associated with

Rating

Method and apparatus for preventing erroneous echoelimination an 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 preventing erroneous echoelimination an, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for preventing erroneous echoelimination an will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2211339