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WDC Western Digital

GRANT
Utility
Data storage device calibrating preamp clock using system clock
28 Oct 19
A data storage device is disclosed comprising a head actuated over a disk, and preamp circuitry coupled to the head, wherein the preamp circuitry comprises a preamp clock and a clock counter configured to count cycles of the preamp clock.
Joey M. Poss
Filed: 30 Mar 18
GRANT
Utility
System and method for augmentation of reset recovery operation timing
28 Oct 19
A method and apparatus for performing operations of an electrical device, whereby the apparatus performs operations during operation of a clock producing a clock signal, asserts a reset of components performing operations for the electrical device, stops the clock through a reset generation block for a number N cycles and performs the reset of operations during the stopping of the clock through the reset generation block for the number N cycles.
Atif Hussain
Filed: 26 Jul 18
GRANT
Utility
Non-volatile storage system with integrated compute engine and optimized use of local fast memory
28 Oct 19
A memory system (e.g. a solid state drive) includes one or more non-volatile memory die, a controller in communication with the memory die, a local memory connected to (or part of) the controller and a compute engine inside the memory system that is near the location of the data and can be used to perform common data manipulation operations.
Pankaj Mehra, Vidyabhushan Mohan
Filed: 5 Oct 17
GRANT
Utility
Error detection for training non-volatile memories
28 Oct 19
The present disclosure, in various embodiments, describes technologies and techniques for detecting errors in a non-volatile memory (NVM) device prior to performing re-training/recalibration.
Gautam Ashok Dusija, Venkatesh Prasa Ramachandra, Mrinal Kochar
Filed: 26 Sep 17
GRANT
Utility
Scaling large drives using enhanced DRAM ECC
28 Oct 19
The present disclosure generally relates to solid state storage device and techniques for conserving storage capacity associated therewith.
James M. Higgins, Rodney Brittner, Steven Sprouse, David George Dreyer, Mark D. Myran
Filed: 26 Jun 17
GRANT
Utility
Data reliability information in a non-volatile memory device
28 Oct 19
A data storage device may include a non-volatile memory array and a controller.
Zvonimir Z. Bandic, Kiran Kumar Gunnam, Seung-Hwan Song
Filed: 16 Mar 16
GRANT
Utility
Method for management tables recovery
28 Oct 19
A controller receives an indication that a memory management table loaded to a random-access storage device is in a corrupted state.
Rotem Sela, Amir Shaharabany, Miki Sapir, Eliad Adi Klein
Filed: 23 Aug 17
GRANT
Utility
Managing flash memory read operations
28 Oct 19
Embodiments of the present disclosure generally relate to a storage device and method of managing flash memory read operations of a storage device.
Shay Benisty, Ariel Navon, Alon Marcu
Filed: 20 Dec 17
GRANT
Utility
Replicating data across data storage devices of a logical volume
28 Oct 19
Systems and methods are disclosed for replicating data across data storage devices of a logical volume.
Charles A. Neumann
Filed: 29 Sep 15
GRANT
Utility
Spin-torque oscillator with multilayer seed layer between the write pole and the free layer in a magnetic recording write head
28 Oct 19
A magnetic recording write head and system has a spin-torque oscillator (STO) located between the write head's write pole and trailing shield.
James Mac Freitag, Zheng Gao, Masahiko Hashimoto, Sangmun Oh
Filed: 9 May 18
GRANT
Utility
Slider and suspension arm interconnection for magnetic storage device
28 Oct 19
Disclosed herein is a magnetic storage device that comprises a suspension arm co-movably fixed to a carriage arm.
Yuhsuke Matsumoto, Kenichi Murata, Adisak Tokaew, David Druist, Glenn Gee, Mark Moravec, Michael Ranes, Peter Paolo Dilla
Filed: 4 Feb 18
GRANT
Utility
Multi-level phase change device
28 Oct 19
Embodiments of the present disclosure generally relate to electronic devices, and more specifically, to multi-level phase change devices.
Jeffrey Lille, Luiz M. Franca-Neto
Filed: 24 Jun 18
GRANT
Utility
Base unit and disk drive apparatus
28 Oct 19
A base member includes a recessed portion extending in radial directions and recessed upward from a lower surface of the base member, and a hole extending through the recessed portion in the vertical direction.
Masahiro Akagi, Takeshi Ohiro, Tomohiro Yoneda, Akihiro Yudate, Takayuki Ishino, Sho Nakamura, Jiro Kaneko, Takako Hayakawa, Kimihiko Sudo, Yuta Onobu
Filed: 16 Aug 18
GRANT
Utility
Non-volatile memory and method for power efficient read or verify using lockout control
28 Oct 19
Embodiments of the present disclosure generally relate to non-volatile memory devices, such as flash memory, and sensing operation methods including locking out high conduction current memory cells of the memory devices.
Piyush Dak, Mohan Vamsi Dunga, Pitamber Shukla
Filed: 11 Dec 17
GRANT
Utility
Error locator polynomial decoder and method
28 Oct 19
An apparatus includes a convergence detector circuit coupled to an error locator polynomial generator circuit.
Ishai Ilani, Kiran Kumar Gunnam
Filed: 7 Dec 16
GRANT
Utility
Elimination of crosstalk effects in non-volatile storage
28 Oct 19
A method for elimination of crosstalk effects in a non-volatile storage is disclosed, having steps of identifying at least one line connected to the non-volatile storage that causes crosstalk effects to another line connected to the non-volatile storage, sending a command to the non-volatile storage to replace the at least one line causing crosstalk effects, selecting at least one line to replace the at least one line causing crosstalk effects with a spare line and replacing the at least one line causing crosstalk effects with the spare line.
Moshe Cohen, Refael Ben-Rubi
Filed: 24 Jan 18
GRANT
Utility
Active low-power termination
28 Oct 19
An active low-power termination circuit includes a first leg of a pair of transistors connected in series between the high supply level and ground, where the termination input is at a node between the transistors of the first node.
John Thomas Contreras, Rehan Zakai, Sayed Mobin
Filed: 27 Sep 18
APP
Utility
Block Reuse for Memory Operations
23 Oct 19
Apparatuses, systems, and methods are disclosed for block reuse for memory operations.
EYAL WIDDER
Filed: 22 Apr 18
APP
Utility
Method and Apparatus to Manipulate Customer Data without Using the Host Interface
23 Oct 19
A method is disclosed for changing data within a solid state drive without using a host interface, comprising issuing a write buffer command with a code to the solid state drive, receiving the code at the solid state drive, storing the code at the solid state drive, transmitting a command to run the code at the solid state drive, running the code with a processor in a virtual machine arranged within the solid state drive, wherein the running of the code alters data within the solid state drive and altering at least one memory arrangement in the solid state drive such that the memory arrangement records the altered data.
Mackenzie ROESER, Robert HILL
Filed: 22 Apr 18
APP
Utility
Storage Cache Management
23 Oct 19
Techniques for management of IS memory in a non-volatile storage device, and methods for use therewith, are described herein.
In-Soo Yoon, Chandrasekar Sundaresan
Filed: 16 May 18
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