1
Robert W Ellis, James M Higgins, Alexander Kwok Tung Mak: Internal current measurement for age measurements. SANDISK TECHNOLOGIES, Morgan Lewis & Bockius, June 30, 2015: US09070481 (3 worldwide citation)

A method of operation in a non-volatile memory device, including executing a memory operation with respect to a portion of a non-volatile memory device, and measuring a current corresponding to current drawn by at least the portion of the non-volatile memory device during the memory operation. An ag ...


2
James M Higgins, Robert W Ellis, Mark Dancho, James Fitzpatrick: Data management with modular erase in a data storage system. SANDISK ENTERPRISE IP, Morgan Lewis & Bockius, October 6, 2015: US09152555 (2 worldwide citation)

A system and method of data management with modular erase in a data storage system with a memory array having an erase block and a target block with the target block in a logical unit separate from the erase block including: performing an erase operation on the erase block, the erase operation havin ...


3
Robert W Ellis, James M Higgins, Vidyabhushan Mohan: Methods and systems for staggered memory operations. SANDISK TECHNOLOGIES, Morgan Lewis & Bockius, July 28, 2015: US09093160 (2 worldwide citation)

The embodiments described herein are used to execute staggered memory operations. The method includes, at each of a plurality of distinct memory portions of the storage device, establishing a non-zero command delay parameter distinct from a command delay parameter established for one or more of the ...


4
Robert W Ellis, James M Higgins: Low read data storage management. SANDISK TECHNOLOGIES, Morgan Lewis & Bockius, July 25, 2017: US09715939 (2 worldwide citation)

Systems and methods disclosed herein are used to efficiently manage low read data. In one aspect, a method includes, in response to detecting occurrence of a first event (e.g., PFail), writing low read data to non-volatile memory of a storage device with a fast SLC programming mode, distinct from a ...


5
John G Hodgdon, Ryan R Jones, James M Higgins: Method and system for limiting write command execution. SanDisk Technologies, Brinks Gilson & Lione, October 3, 2017: US09778878 (2 worldwide citation)

Methods, systems and/or devices are used for limiting write command execution in a storage device comprising a set of non-volatile memory devices. In one aspect, the method includes (1) accessing in a holding queue host-specified write commands specified by a host system, each of the host-specified ...


6
James M Higgins, James Fitzpatrick, Mark Dancho: Sub-block garbage collection. SANDISK TECHNOLOGIES, Morgan Lewis & Bockius, May 16, 2017: US09652381 (1 worldwide citation)

Systems, methods and/or devices are used to enable garbage collection of a sub-block of an individually erasable block of a storage medium in a storage device. In one aspect, the method includes determining a first trigger parameter in accordance with one or more operating conditions of a first sub- ...


7
James Fitzpatrick, Mark Dancho, James M Higgins, James M Kresse: Electronic system with storage drive life estimation mechanism and method of operation thereof. SMART STORAGE SYSTEMS, Morgan Lewis & Bockius, June 7, 2016: US09361222 (1 worldwide citation)

Systems, methods and/or devices are used to enable storage drive life estimation. In one aspect, the method includes (1) determining two or more age criteria of a storage drive, and (2) determining a drive age of the storage drive in accordance with the two or more age criteria of the storage drive.


8
James Fitzpatrick, James M Higgins, Bernardo Rub, Ryan Jones, Robert W Ellis, Mark Dancho, Sheunghee Park: Storage control system with power-off time estimation mechanism and method of operation thereof. SANDISK TECHNOLOGIES, Morgan Lewis & Bockius, January 10, 2017: US09543025

A storage control system, and a method of operation thereof, including: a power-down module for powering off a memory sub-system; a decay estimation module, coupled to the power-down module, for estimating a power-off decay rate upon the memory sub-system powered up, the power-off decay rate is for ...


9
James Fitzpatrick, Mark Dancho, James M Higgins, Robert W Ellis, Bernardo Rub: Data storage system with dynamic erase block grouping mechanism and method of operation thereof. SANDISK TECHNOLOGIES, Morgan Lewis & Bockius, May 30, 2017: US09665295

Systems, methods and/or devices are used to enable dynamic erase block grouping. In one aspect, the method includes (1) maintaining metadata for each erase block of a plurality of erase blocks in a data storage system, wherein a respective metadata for a respective erase block includes one or more c ...


10
James Fitzpatrick, Mark Dancho, James M Higgins, Robert W Ellis, Bernardo Rub: Data storage system with dynamic erase block grouping mechanism and method of operation thereof. SANDISK TECHNOLOGIES, Morgan Lewis & Bockius, August 30, 2016: US09431113

Systems, methods and/or devices are used to enable dynamic erase block grouping. In one aspect, the method includes (1) maintaining metadata for each erase block of a plurality of erase blocks in a data storage system, wherein a respective metadata for a respective erase block includes one or more c ...