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:
Aug. 30, 2005
Filed:
Aug. 01, 2002
James A. Doubler, Wheaton, IL (US);
Michael P. Hammer, Westchester, IL (US);
Shu C. Yuan, Naperville, IL (US);
James A. Doubler, Wheaton, IL (US);
Michael P. Hammer, Westchester, IL (US);
Shu C. Yuan, Naperville, IL (US);
Lattice Semiconductor Corporation, Hillsboro, OR (US);
Abstract
The present invention provides a cyclic redundancy check (CRC) calculation system for a packet arriving on an n-byte wide bus. In one embodiment, the system includes a bus-wide CRC subsystem configured to calculate an intermediate CRC value based on complete segments of the packet. In addition, the system includes a byte-wide CRC subsystem, coupled to the bus-wide subsystem, configured to calculate a remaining CRC value based on the intermediate CRC value and one or more bytes within an incomplete segment of the packet on a byte by byte basis. In addition, a method of calculating a CRC value for a packet arriving on a n-byte wide bus and a data transmission system incorporating the system are also disclosed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile