Bi-directional low pass filtering method and apparatus

Pulse or digital communications – Receivers – Interference or noise reduction

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

36472401, 455307, H04B 110

Patent

active

056944390

ABSTRACT:
The present invention provides a bi-directional low pass filtering method and apparatus for attenuating out-of-baseband components of data transmitted from an encoder to a decoder over a transmission medium. In one embodiment of the present invention, the bi-directional low pass filtering apparatus includes a Chebyshev filter that has a first phase response. This Chebyshev filter is coupled to a phase correction circuit, which has a second phase response. This second phase response of the phase correction circuit is designed to oppose the first phase response in order to offset variations in group delay in the data due to the Chebyshev filter.

REFERENCES:
patent: 4802234 (1989-01-01), Tatomio et al.
patent: 4884036 (1989-11-01), Koyama et al.
patent: 4994693 (1991-02-01), Popescu
patent: 5006810 (1991-04-01), Popescu
"Linear Phase Filter Design on a Time Domain Basis" Philobos B. IEEE pp. 836-837. 1981.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Bi-directional low pass filtering method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bi-directional low pass filtering method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bi-directional low pass filtering method and apparatus will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-807818

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.