Givens rotations computation

Details Givens rotations computation Givens rotations computation

2006-08-29

2006-08-29

Malzahn, D. H. (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

C708S323000

Reexamination Certificate

active

07099911

ABSTRACT:
A Givens rotation computation technique is provided that makes use of polynomial approximations of an expression that contains a square root function. The polynomial approximation uses polynomial coefficients that are specifically adapted to respective ones of a number of subintervals within the range of possible values of the input variable of the expression. The technique may be used in data communications devices such as those in wireless local area networks. An example is the application of the Givens rotations technique in a decision feedback equalizer.

REFERENCES:
patent: 5305248 (1994-04-01), Ammann
patent: 6363405 (2002-03-01), Loginov
patent: 6542917 (2003-04-01), Watanabe et al.
patent: 2003/0002574 (2003-01-01), Yang et al.

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