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:
Sep. 26, 2006
Filed:
Sep. 13, 2002
James Byrd, Long Mount, CO (US);
James Byrd, Long Mount, CO (US);
Sun Microsystems, Inc., Santa Clara, CA (US);
Abstract
The present invention permits error detection to be performed on a word basis (e.g., 32 bits in parallel). An exclusive OR function is performed on each bit of data and cyclic redundancy code (CRC) bit in parallel. If a feedback value (e.g., a standard poly divider) is a logical one it is also included in the exclusive OR function. The present invention is readily adaptable for use with a variety of CRC polynomials (e.g., any Galois Finited Field Equation with primitive irreducible polynomials over GF(2) with linearly independent roots and the reciprocal polynomial with linearly independent roots. In one embodiment, each data word is effectively multiplied by alpha to the first power, where alpha is a root solution to the applicable polynomial utilized to calculate the CRC. In one exemplary implementation of the present invention, the instructions are in assembly language configured with a machine instruction shift through carry.