| Patent Number |
Title Of Patent |
Date Issued |
| 7554759 |
Mechanism for isolating marginal recording to media or recording apparatus |
June 30, 2009 |
| In one embodiment, a method and apparatus for isolating marginal recording to media or recording apparatus is disclosed. The method includes generating an experience metric from an interaction between a media mounted in a drive, updating one or more metrics for each of the media and |
| 7535664 |
Performance enhancement for tape write immediate operations |
May 19, 2009 |
| A method for writing data in a tape drive is provided by the present invention. The present invention provides a method for writing data in a tape drive. The invention include allocating a blank area for transpose writing on a magnetic tap and then writing a first group of data sets on |
| 7372657 |
Mechanism for minimizing unload times in a tape drive system |
May 13, 2008 |
| In one embodiment, a method and apparatus for minimizing unload times in a tape drive system is disclosed. The method includes: writing to a tape in serpentine format; reaching a comparison point on the tape, wherein at the comparison point an actual capacity is compared to an expected |
| 7130139 |
Write velocity identification |
October 31, 2006 |
| A drive and method of identifying write velocity during reading are provided. When a track is being read, the data signal is processed prior to determining the data stream to identify the velocity with which the track data were written. The read channel is adjusted based on the ident |
| 6981198 |
Dynamic error correction code shortening |
December 27, 2005 |
| A method and system are provided for dynamically shortening a number of error correction codewords to correspond to an amount of user data to be recorded on a recording medium. The system and method determine in advance that the number of bytes of user data will only fill a portion of a |
| 6956709 |
Write velocity identification in a PRML system |
October 18, 2005 |
| A tape drive and method of identifying write velocity during reading are provided. When a track is being read, a lead-in code of the data signal is processed prior to determining the data stream. The lead-in code identifies the velocity with which the track data were written. The equ |
| 6947241 |
Pre-block ID mark for multi-directional block location when using a unidirectional coding format |
September 20, 2005 |
| An asynchronous method for locating individual blocks of data in a tape drive, without having to read the blocks of data is provided. The invention comprises placing an ID mark adjacent to the data blocks and inter-block gaps on the tape. The ID mark contains a small amount of inform |
| 6937412 |
Method and apparatus for creating a format identification block on a magnetic tape |
August 30, 2005 |
| A method, apparatus, and computer instructions for writing data to a magnetic media. A first frequency is written on a first track on the magnetic media on a first track width. A second frequency is written on the first track in which a combination of the first frequency and the seco |
| 6898036 |
System and method for recovery from writing errors during data storage |
May 24, 2005 |
| A system and method for recovering from write errors during writing of a moving storage medium suspend write current while allowing the storage medium to continue moving. The system and method continue to format data for writing while the write current is suspended and resequence the dat |
| 6877128 |
Weighted error/erasure correction in a multi-track storage medium |
April 5, 2005 |
| A method, computer program product, and data processing system for recovering corrupted data in a multi-track storage medium, such as magnetic tape, using a Reed-Solomon or other similar error correcting code system, is disclosed. A correction history keeping a tally of actual correc |
