Hoa T Le

US Patent:

7440214, Oct 21, 2008

Filed:

Apr 30, 2003

Appl. No.:

10/427484

Inventors:

Travis E. Ell - Foothill Ranch CA, US
Hanan Kupferman - Diamond Bar CA, US
Hoa V. Le - Irvine CA, US
Jonathan V. Nguyen - Laguna Niguel CA, US
Saied Tamaddon-Dallal - Foothill Ranch CA, US
Virat Thantrakul - Laguna Niguel CA, US
Teik Ee Yeo - Trabuco Canyon CA, US

Assignee:

Western Digital Technologies, Inc. - Lake Forest CA

International Classification:

G11B 15/18

US Classification:

360 69

Abstract:

Disclosed is a disk drive having a disk, a masked read-only memory (ROM) device, a reprogrammable nonvolatile memory device, and a microprocessor for executing program code. The disk has a magnetic data storage surface with embedded servo wedges for defining data storage tracks including reserve tracks. The masked ROM device stores program code for implementing a spindle motor controller, program code for implementing a portion of a servo controller for track following along a data storage track, and program code for implementing a portion of a disk controller for controlling writing disk data to and reading disk data from the reserve tracks. The reprogrammable nonvolatile memory device stores data parameters relating to the disk drive's configuration. The reserve tracks store program code for implementing a cache control system for controlling caching of disk data in a cache memory.

US Patent:

20220286511, Sep 8, 2022

Filed:

May 26, 2022

Appl. No.:

17/825900

Inventors:

- San Jose CA, US
Jaewook Lee - Irvine CA, US
Hoa Le - Orange CA, US
Suayb S. Arslan - Sariyer/Istanbul, TR
James Peng - Santa Maria CA, US

International Classification:

H04L 67/1097
G06F 3/06
G06F 16/182

Abstract:

Embodiments disclosed herein provide systems, methods, and computer readable media to access data on removable storage media via a network attached access device. In a particular embodiment, a method provides receiving one or more user provided, in the removable storage media access device, receiving data over a packet communication network for storage on a removable storage medium. After receiving the data, the method provides preparing the data for storage on the removable storage medium. After preparing the data, the method provides writing the data to the removable storage medium.

US Patent:

20190361606, Nov 28, 2019

Filed:

May 24, 2019

Appl. No.:

16/421685

Inventors:

- San Jose CA, US
Suayb Arslan - Irvine CA, US
Hoa Le - San Jose CA, US
James Peng - San Jose CA, US
Carsten Prigge - San Jose CA, US

International Classification:

G06F 3/06
G11B 27/032
G06F 11/16

Abstract:

A magnetic tape device or system can store erasure encoded data that generates a multi-dimensional erasure code corresponding to an erasure encoded object comprising a code-word (CW). The multi-dimensional erasure code enables using a single magnetic tape in response to a random object/file request, and correct for an error within the single magnetic tape without using other tapes. Encoding logic can further utilize other magnetic tapes to generate additional parity tapes that recover data from an error of the single magnetic tape in response to the error satisfying a threshold severity for a reconstruction of the erasure coded object or chunk(s) of the CW. The encoding logic can be controlled, at least in part, by one or more iterative coding processes between multiple erasure code dimensions that are orthogonal to one another.

US Patent:

20180302473, Oct 18, 2018

Filed:

Apr 14, 2017

Appl. No.:

15/487776

Inventors:

- San Jose CA, US
Jaewook Lee - Irvine CA, US
Hoa Le - Orange CA, US
Suayb S. Arslan - Istanbul, TR
James Peng - Santa Maria CA, US

International Classification:

H04L 29/08
G06F 3/06
G06F 17/30

Abstract:

Embodiments disclosed herein provide systems, methods, and computer readable media to access data on removable storage media via a network attached access device. In a particular embodiment, a method provides receiving one or more user provided, in the removable storage media access device, receiving data over a packet communication network for storage on a removable storage medium. After receiving the data, the method provides preparing the data for storage on the removable storage medium. After preparing the data, the method provides writing the data to the removable storage medium.