Pulse or digital communications – Equalizers – Automatic
Patent
1997-12-18
2000-08-22
Le, Amanda
Pulse or digital communications
Equalizers
Automatic
375266, 375324, 375332, 375345, H04L 504
Patent
active
061083755
ABSTRACT:
In a digital receiver, an equalizing unit includes a power controller adapted to scale received components of a quadrature amplitude modulated signal based on a constellation size of the quadrature amplitude modulated signal. Alternatively, a method of scaling components of a quadrature amplitude modulated signal includes the steps of searching the quadrature amplitude modulated signal to determine a constellation size, and scaling the components of the quadrature amplitude modulated signal based on the constellation size.
REFERENCES:
patent: 5381450 (1995-01-01), Lane
patent: 5742643 (1998-04-01), Reeves et al.
IEEE Transactions on Communications, vol., Com-28, No. 11, Nov. 1980 "Self-Recovering Equalization and Carrier Tracking In Two-Dimensional Data Communication Systems", by Dominique N. Godard, Member, IEEE, pp. 1867-1875.
Farrokh Hashem
Naganathan Subramanian
Raghunath Kalavai Janardhan
Rambaud Marta M.
Le Amanda
Lucent Technologies - Inc.
Veschi John P.
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