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. 15, 2012
Filed:
Jan. 08, 2008
James J. Allen, Jr., Raleigh, NC (US);
Jean L. Calvignac, Cary, NC (US);
Natarajan Vaidhyanathan, Greensboro, NC (US);
Fabrice J. Verplanken, La Gaude, FR;
James J. Allen, Jr., Raleigh, NC (US);
Jean L. Calvignac, Cary, NC (US);
Natarajan Vaidhyanathan, Greensboro, NC (US);
Fabrice J. Verplanken, La Gaude, FR;
International Business Machines Corporation, Armonk, NY (US);
Abstract
The CRC for the CPS Header of an ATM AAL2 cell is generated by a CRC generator which uses the 8 bits of the CID field to generate partial 5 bits CRCs which are loaded in a first table. The 6 bits LI field and 5 bits UUI field are added to the partial 5 bits CRC to form 16 bits. The CRC generator uses the 2.sup.16 bits to generate a second CRC table. The CRC for a particular CPS header is generated by correlating bits in the CID field, LI field and UUI field with the two tables.