Memory system
AssigneeKioxia Corporation
InventorsMarie Takada, Masanobu Shirakawa
Life of this patent
Estimating the term…
Abstract
According to one embodiment, a memory system includes: a controller configured to execute an error correction process on first data read from a first area at a first address of a memory device and determine a read level used for reading data at the first address according to a result of the correction process. The controller executes the correction process on first frame data of the first data. When the correction process on the first frame data has failed, the controller executes the correction process on second frame data of the first data. When the correction process on the second frame data has succeeded, the controller determines the read level based on a result of comparison between the second frame data and a result of the correction process on the second frame data.
Claims16
A memory system comprising:
- a non-volatile memory device;
- and
- a controller configured to execute an error correction process on first data read from a first area at a first address of the non-volatile memory device and determine a read level used for reading data at the first address according to a result of the correction process,
- wherein
- the controller is configured to
- execute the correction process on first frame data of the first data,
- when the correction process on the first frame data has failed, execute the correction process on second frame data of the first data, and
- when the correction process on the second frame data has succeeded, determine the read level based on a result of comparison between the second frame data and a result of the correction process on the second frame data.
A memory system comprising:
- a non-volatile memory device;
- and
- a controller configured to execute an error correction process on first data read from a first area at a first address of the non-volatile memory device and determine a read level used for reading data at the first address according to a result of the correction process,
- wherein
- the controller is configured to
- execute the correction process on first frame data including first parity data of a first parity size in the first data,
- when the correction process on the first frame data has failed, execute the correction process on second frame data including second parity data of a second parity size larger than the first parity size in the first data, and
- when the correction process on the second frame data has succeeded, determine the read level based on a result of comparison between the second frame data and a result of the correction process on the second frame data.
Dependencies are inferred from the claim text.