Method and system for reading unknown data from non-volatile memory
US12394493B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2023 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Nov 23, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C29/50004
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for reading data from a non-volatile memory array having memory cells configured to store one bit information, including powering on the array, where information from at least first and second memory cells is collectively associated with one bit of sensible data; reading first and second memory cell values by comparing a reference value to an electrical property value of the respective memory cell; adjusting the reference value when at least the first and second memory cell values have a first combination of logic state values; reading the first and second memory cell values using the adjusted reference value to obtain a second combination of logic state values; and determining a sensible data bit value based on the second combination. The adjusted reference value lies in the space between first and second distributions of possible electrical property values respectively for the first and second memory cell values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.