Method for changing read parameter for improving read performance and apparatuses using the same
AssigneeSamsung Electronics Co., Ltd.
InventorsSeong Hyeog CHOI, Hong Rak SON, Kyoung Lae CHO, Jun Jin KONG, Sang Hoon LEE
Life of this patent
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Abstract
A memory system including a non-volatile memory device and a memory controller is provided. When a read operation on a first data initially output from the non-volatile memory device during a first read operation is successful, the memory controller may change a read voltage for reading a second data stored in the non-volatile memory device during a second read operation.
Claims37
A method of operating a memory, the method comprising:
- reading data stored in a region of the memory using a current regional read parameter;
- determining whether reading is successful;
- and
- when reading is successful, determining an updated regional read parameter in accordance with current cell conditions of the region and transmitting the data read using the current regional read parameter to a host.
A method of operating a memory controller, the method comprising:
- receiving data output from a memory during reading of a region of the memory using a current regional read parameter;
- determining whether reading is successful;
- and
- when reading is successful, determining an updated regional read parameter in accordance with current cell conditions of the region and transmitting the data read using the current regional read parameter to a host.
A method of operating a memory system, the method comprising:
- reading data stored in a region of a memory device using a current regional read parameter;
- transmitting data read using the current regional read parameter to a memory controller;
- determining, by the memory controller, whether reading is successful;
- and
- when reading is successful, determining, by the memory controller, an updated regional read parameter in accordance with current cell conditions of the region and transmitting the data read using the current regional read parameter to a host.
37-60. (canceled)
Dependencies are inferred from the claim text.