Arrangement for cancelling echo signals

Details Arrangement for cancelling echo signals Arrangement for cancelling echo signals

H - Electricity

04

B

340/72

H04B 15/00 (2006.01) H04B 3/23 (2006.01)

Patent

CA 1189926

ABSTRACT: "Arrangement for cancelling echo signals". Arrangement for cancelling echo signals in data transmission over a two wire transmission path (3). The data signals occurring in the send path (1) are applied to an adjustable signal processing arrangement (13). From said data signals a synthetic echo signal (?(t)) is derived which is subtracted in a difference producer (16) from the data signal occurring in the receive path (2). The residual signal (r(t)) is converted into a digital residual signal (?(j)) in an analogue- to-digital converter arrangement (24). The use of an interpolator (22) which increases the sampling rate by a factor L results in that a digital control signal (?(i)) for the setting arrangement (17), which is coupled to the adjustable signal processing arrangement (13) is obtained from the digital residual signal. The sampling rate of the digital residual signal is M/LT Hz, wherein T is the duration of a data symbol in sec. and M and L represent integers which are relatively prime, L being greater than one.

402214

Affiliated with

Also associated with

Rating

Arrangement for cancelling echo signals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Arrangement for cancelling echo signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arrangement for cancelling echo signals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1195250