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:
Mar. 14, 2011
Filed:
Nov. 25, 2003
Judy Lynn Westby, Savage, MN (US);
Michael H. Miller, Eden Prairie, MN (US);
Judy Lynn Westby, Savage, MN (US);
Michael H. Miller, Eden Prairie, MN (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
Cyclic-redundancy-code ('CRC') information that is received along with a frame from a fiber-channel is stored in an on-chip frame buffer, and later checked to ensure the integrity of the data while in the frame buffer. In various embodiments, data frames, along with their CRC information, are stored into a data-frame buffer, and/or non-data frames along with their CRC information are stored into a receive-non-data-frame buffer. The improved communications channel system includes a channel node having dual ports, each port supporting a fiber-channel arbitrated-loop serial communications channel. The serial communications channels each include CRC on data transmissions on the channel, an on-chip frame memory located on-chip in the channel node that receives a data frame and the frame's associated CRC from the communications channel, and an integrity apparatus that later uses the received associated CRC for data-integrity checking of data in the on-chip frame memory. In addition, a method for using CRC for data integrity in on-chip memory is described.