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:
Jul. 23, 1996
Filed:
Mar. 03, 1994
Applicant:
Inventors:
Rene Glaise, Nice, FR;
Xavier Jacquart, Nice, FR;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ; G06F / ; H03M / ;
U.S. Cl.
CPC ...
371 371 ; 3647461 ;
Abstract
A method and an apparatus for calculating and checking the Frame Check Sequence (FCS) of a message comprising a sequence of data bytes. A Cyclic Redundancy Code (CRC) is used to generate the FCS at one end and check the message at the other end. For each new byte of the sequence of data bytes, the current FCS, which is a vector of the Galois Field is multiplied by .alpha..sup.8, another vector of the Galois Field.