Invention Grant
- Patent Title: Offline characterization for adaptive flash tuning
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Application No.: US15194450Application Date: 2016-06-27
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Publication No.: US09639283B2Publication Date: 2017-05-02
- Inventor: Conor Maurice Ryan , Joseph Sullivan
- Applicant: Conor Maurice Ryan
- Applicant Address: GB Limerick
- Assignee: NVMDURANCE LIMITED
- Current Assignee: NVMDURANCE LIMITED
- Current Assignee Address: GB Limerick
- Agency: Klintworth & Rozenblat IP LLC
- Agent Michael K. Bosworth
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G06F3/06 ; G06F12/02 ; G11C16/34 ; G11C29/50 ; G06F12/1009 ; G11C29/36 ; G11C29/38 ; G11C29/44 ; G11C16/10 ; G11C16/16 ; G11C16/26

Abstract:
The present invention includes embodiments of systems and methods for increasing the operational efficiency and extending the estimated operational lifetime of a flash memory storage device (and its component flash memory chips, LUNs and blocks of flash memory) by monitoring the health of the device and its components and, in response, adaptively tuning the operating parameters of flash memory chips during their operational lifetime, as well as employing other less extreme preventive measures in the interim, via an interface that avoids the need for direct access to the test modes of the flash memory chips. In an offline characterization phase, “test chips” from a batch of recently manufactured flash memory chips are used to simulate various usage scenarios and measure the performance effects of writing and attempting to recover (read) test patterns written with different sets of operating parameters over time (simulating desired retention periods).
Public/Granted literature
- US20160306570A1 Offline Characterization for Adaptive Flash Tuning Public/Granted day:2016-10-20
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