The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 07, 2000

Filed:

Aug. 14, 1998
Applicant:
Inventors:

Stewart Crozier, Kanata, CA;

Andrew Hunt, Ottawa, CA;

John Lodge, Kanata, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M / ; G06F / ;
U.S. Cl.
CPC ...
714794 ; 714752 ; 714802 ; 704200 ;
Abstract

The invention comprises an enhancement to max-log-APP processing that significantly reduces performance degradation associated with introducing the 'max' approximation into log-APP computations, while still maintaining lower computational complexity associated with max-log-APP processing. This enhancement is achieved by adjusting extrinsic information produced by a max-log-APP process where the magnitude of the extrinsic information is reduced, for example, by multiplying it with a scale factor between 0 and 1.


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