Non-volatile memory apparatus and reading method thereof
US11334429B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2020 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Aug 26, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/152
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A non-volatile memory apparatus includes an error checking and correcting (ECC) decoding circuit, a first cyclic redundancy check (CRC) circuit, a second CRC circuit, and an interface circuit. The ECC decoding circuit decodes an original codeword to obtain a decoded codeword. The interface circuit receives and provides a first data portion of the decoded codeword to a host. The first CRC circuit performs a first CRC on the first data portion and generates a check status message based on a relationship between a result of the first CRC and a first CRC code of the decoded codeword. The second CRC circuit performs a second CRC on the first data portion to generate a second CRC code. The second CRC circuit determines whether to further change the second CRC code to make the second CRC code not match the first data portion according to the check status message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.