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. 31, 1998
Filed:
Jun. 24, 1996
John Scott Eggenberger, Sunnyvale, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for correcting error bursts in data which are uncorrectable by an ECC in a communications channel in which no pointer is available or if available is not generated. The data is recorded in blocks preferably comprising subblocks. Parity cell syndromes are generated for each block during writing; and during reading these syndromes are analyzed to identify possible starting points of error burst locations. A trial correction is applied to the data in the uncorrectable block (or subblock), then verified whether successful using CRC. The correction is accepted as valid if and only if only one trial correction is verified as successful. The maximum number B of consecutive bytes in error correctable in a block is less than, the number N of bytes in each parity cell, and N-B is selected to limit the probability of miscorrection.