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.
Patent No.:
Date of Patent:
May. 20, 1997
Filed:
May. 26, 1995
Applicant:
Inventor:
Steven E Hossner, Hillsboro, OR (US);
Assignee:
NEC America, Inc., Melville, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
375289 ; 371 571 ;
Abstract
An enhanced B3ZS decoder which substantially improves error-multiplication performance is disclosed. A string of four bits is examined to detect whether it satisfies two specific criteria. The first criterion is that every valid zero-substitution pattern is immediately preceded by a 'one' bit. The second criterion is that successive zero-substitution BPVs are of opposite polarity. When these criteria are met, the appropriate bits are set to zero, effectively replacing the identified pattern with the original three-zero pattern.