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:
Nov. 23, 2010
Filed:
Sep. 25, 2006
Applicant:
Peter Bain, Ottawa, CA;
Inventor:
Peter Bain, Ottawa, CA;
Assignee:
Altera Corporation, San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03M 13/03 (2006.01);
U.S. Cl.
CPC ...
Abstract
Methods and apparatus are provided for more efficiently computing error checking codes such as cyclic redundancy checks (CRCs). Based on particular characteristics of CRCs, an input sequence is intelligently divided into a series of subsequences. Each subsequence gets selected bits from the input sequence. The error checking code is calculated on each subsequence. The results are bit-interleaved and an error checking code is calculated over this interleaved result to obtain the error checking code over the entire sequence.