Pulse or digital communications – Equalizers – Automatic
Patent
1994-06-20
1996-01-23
Chin, Stephen
Pulse or digital communications
Equalizers
Automatic
375229, 375232, 375233, H03H 730
Patent
active
054870852
ABSTRACT:
In a digital transmission system comprising a transmitter (2) connected to a receiver (6) through a channel (4), this receiver comprises an equalizer (8) which includes an equalization filter (12) with output signals from which a sum weighted with weight factors is determined. The output signal of the equalizer is applied to a detector. According to the inventive idea a correction signal for correcting the coefficients w of the equalizer is derived from w.sub.k =w.sub.k-1 +Ma.sub.k e.sub.k, where a.sub.k is the vector of a plurality of successive detected symbols, and e.sub.k is a difference between the current input signal of the detector and a reconstructed ideal input signal of the detector.
REFERENCES:
patent: 4186384 (1980-01-01), Acker
patent: 5119401 (1992-06-01), Tsujimoto
Lucky, "Techniques for Adaptive Equalization of Digital Communication System" The Bell System Technical Journal, Feb. 1966. pp. 256-286.
Hong, "Adaptive Equalization Circuit", IBM Technical Disclosure Bulletin, vol. 23, No. 11, Apr. 1981, pp. 5064-5065.
Nagaraj, "An Automatic Line Equaliser Working Down to 0-db Loss", J. Instn. Electronics & Telecom. Engrs., vol. 26, No. 12, 1980 pp. 595-598.
Wood et al., "An Experimental Eight-Inch Disc Drive With One-Hundred Mega-bytes Per Surface", IEEE Transactions on Magnetics, Vo. MAG-20, No. 5, Sep. 1984, pp. 698-702.
Bergmans Johannes W.
Fisher Kevin D.
Wong-Lam Ho W.
Chin Stephen
Luu Huong
Marion Michael E.
U.S. Philips Corporation
LandOfFree
Transmission system with improved equalizer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transmission system with improved equalizer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission system with improved equalizer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1510156