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. 21, 2007
Filed:
Aug. 23, 2004
Santanu Bhattacharya, Delhi, IN;
Neeraj Gupta, New Delhi, IN;
Yogesh Mittal, Uttar Pradesh, IN;
Priya Darshini, Delhi, IN;
Arunava Dutta, Calcutta, IN;
Suvhasis Mukhopadhyay, Shrewsbury, MA (US);
Santanu Bhattacharya, Delhi, IN;
Neeraj Gupta, New Delhi, IN;
Yogesh Mittal, Uttar Pradesh, IN;
Priya Darshini, Delhi, IN;
Arunava Dutta, Calcutta, IN;
Suvhasis Mukhopadhyay, Shrewsbury, MA (US);
Transwitch Corporation, Shelton, CT (US);
Abstract
Methods for correcting errors in a GFP-T superblock include buffering the 64 bytes of data in an 8×8 byte buffer, buffering the flag byte in a separate buffer, calculating the CRC remainder, and performing single and double bit error correction in three stages. In the first stage, the CRC remainder is compared to a single bit error syndrome table and if an error is located, it is corrected. In the second stage, the CRC remainder is compared to a double bit error syndrome table and if an error is located, it is corrected. The third stage corrects the second error of a double bit error. The flag byte is processed first, followed by the data bytes, eight bytes at a time.