Jefferson E Singleton

8154818, Apr 10, 2012

Oct 20, 2008

12/663345

George Mathew - San Jose CA, US
Yuan Xing Lee - San Jose CA, US
Hongwei Song - Longmont CO, US
Jefferson E. Singleton - Westminster CO, US

LSI Corporation - Milpitas CA

G11B 21/02

360 75

Various embodiments of the present invention provide systems and methods for adaptive channel bit density estimation. For example, various embodiments of the present invention provide methods for adaptively estimating channel bit density. Such methods include providing a storage medium () that includes information corresponding to a process data set, and accessing the process data set from the storage medium (). A first channel bit density estimate () is computed based at least in part on a first portion of the process data set (-), and a second channel bit density estimate () is calculated based at least in part on the first portion of the process data set, a second portion of the process data set (-) and the first channel bit density estimate ().

8498071, Jul 30, 2013

Jun 30, 2011

13/173088

Jeffrey P. Grundvig - Loveland CO, US
Jason D. Byrne - Boulder CO, US
Jefferson Singleton - Westminster CO, US

LSI Corporation - San Jose CA

G11B 27/36
G11B 5/09

360 31, 360 51

Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing circuit is discussed that includes: a servo address mark count circuit, a user sync mark count circuit, and an offset calculation circuit. The servo address mark count circuit is operable to provide: a first count corresponding to a first servo address mark within a first track of a storage medium, a second count corresponding to a second servo address mark within the first track, a third count corresponding to a third servo address mark within a second track of the storage medium, and a fourth count corresponding to a fourth servo address mark within the second track. The user sync mark count circuit is operable to provide: a fifth count corresponding to a first user sync mark within the first track, and to provide a sixth count corresponding to a second user sync mark within the second track. The offset calculation circuit is operable to calculate an offset between the first track and the second track based at least in part on the first count, the second count, the third count, the fourth count, the fifth count, and the sixth count.

20090154003, Jun 18, 2009

Oct 20, 2008

12/254737

George Mathew - San Jose CA, US
Yuan Xing Lee - San Jose CA, US
Hongwei Song - Longmont CO, US
Jefferson E. Singleton - Westminster CO, US

G11B 21/02

360 75

Various embodiments of the present invention provide systems and methods for using channel bit density estimates to adjust fly-height. For example, various embodiments of the present invention provide methods for adaptively adjusting fly-height. Such methods include providing a storage medium that includes information corresponding to a process data set, and a read/write head assembly that is disposed a variable distance from the storage medium. The process data set is accessed from the storage medium. A first channel bit density estimate is adaptively calculated based at least in part on the process data set and a second channel bit density estimate that was previously calculated. The variable distance is modified based at least in part on the first channel bit density estimate. A third channel bit density is adaptively calculated based at least in part on the process data set and a fourth channel bit density estimate that was previously calculated. The variable distance is modified based at least in part on the third channel bit density estimate.

20130275986, Oct 17, 2013

Apr 12, 2012

13/445858

Johnson Yen - Fremont CA, US
Shaohua Yang - San Jose CA, US
Bruce Wilson - San Jose CA, US
Jefferson E. Singleton - Westminster CO, US

G06F 9/46

718103

Various embodiments of the present inventions provide systems and methods for data processing with out of order transfer. For example, a data processing system is disclosed that includes a data processor operable to process input blocks of data and to yield corresponding processed output blocks of data, wherein the processed output blocks of data are output from the data processor in an order in which their processing is completed, and a scheduler operable to receive processing priority requests for the input blocks of data and to assign processing resources in the data processor according to the priority requests.

20130332794, Dec 12, 2013

Jun 7, 2012

13/490849

Johnson Yen - Fremont CA, US
Shaohua Yang - San Jose CA, US
Jefferson E. Singleton - Westminster CO, US
Bruce Wilson - San Jose CA, US
Madhusudan Kalluri - Sunnyvale CA, US

H03M 13/00
G06F 11/10

714758, 714E11032

Various embodiments of the present inventions are related to apparatuses and methods for data processing systems with retained sector reprocessing. For example, a data processing system is disclosed that includes a data processor operable to process blocks of data and to yield corresponding processed output blocks of data, and to retain the blocks of data for reprocessing when requested, and a scheduler operable to receive reprocessing requests for the retained blocks of data and to initiate a reprocessing operation in the data processor for the retained blocks of data.

20140019695, Jan 16, 2014

Jul 12, 2012

13/547516

Jefferson Singleton - Westminster CO, US
Shaohua Yang - Santa Clara CA, US

G06F 12/00

711159, 711E12001

The present invention is related to processing data sets, and more specifically to recovering problematic portions of a data set.

20150134613, May 14, 2015

Nov 15, 2013

14/080935

- San Jose CA, US
Fan Zhang - Milpitas CA, US
Jun Xiao - Fremont CA, US
Jefferson Singleton - Westminster CO, US

LSI Corporation - San Jose CA

G06F 11/14
G06F 17/30

707634

Systems and method relating generally to data processing, and more particularly to systems and methods for segmenting a data set and recovering the segmented data set.

20150012800, Jan 8, 2015

Jul 26, 2013

13/952415

- San Jose CA, US
George Mathew - San Jose CA, US
Jefferson E. Singleton - Westminster CO, US
Jongseung Park - Allentown PA, US
Richard Rauschmayer - Longmont CO, US

LSI Corporation - San Jose CA

G06F 11/07

714769

A data processing system is disclosed including a data detector, a data decoder and an alignment detector. The data detector is operable to apply a data detection algorithm to generate detected values for a data sector. The data decoder is operable to apply a data decode algorithm to a decoder input derived from the detected values to yield decoded values. The alignment detector is operable to calculate an offset between multiple versions of the data sector by correlating the multiple versions.