05253126 is referenced by 36 patents and cites 2 patents.

A method for monitoring the performance of a DAT drive and a method for self-cleaning the tape heads of a DAT drive pursuant to the occurrence of an error that could not be corrected by re-reads or re-writes. The monitoring method includes the steps of (a) reading a tape, (b) determining for each of successive groups of frames respective A track and B track reference error counts representative of the A track and B track C1 error counts in each group of frames, each group having the same number of frames, and (c) providing a warning signal indicative of degraded performance if (i) either the A track reference counts for a predetermined number of consecutive frame groups exceed a predetermined threshold or the B track reference counts for a predetermined number of consecutive frame groups exceed a predetermined threshold, or (ii) if both the A track and B track reference counts for the predetermined number of consecutive frame groups exceed the predetermined threshold. The self-clean procedure includes the steps of moving the tape to the end of the tape at a speed higher than normal, moving the tape to the beginning of the tape at a speed higher than normal, positioning the tape at the location of the error, providing a warning to the user, and resuming the operation that resulted in occurrence of the error. If the error persists, the user is notified of the occurrence of an uncorrectable error.

Title
Raw error monitoring and reporting
Application Number
7/679668
Publication Number
5253126
Application Date
April 3, 1991
Publication Date
October 12, 1993
Inventor
Robert C Richmond
Laguna Hills
CA, US
Agent
Roberts and Quiogue
Assignee
Archive Corporation
CA, US
IPC
G11B 5/09
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