Patent ID: 11940932
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 3:
4. A storage device comprising:
a plurality of first volatile memory devices, each of the plurality of first volatile memory devices having a temperature within a first temperature range;
a plurality of second volatile memory devices, each of the plurality of second volatile memory devices having a temperature within a second temperature range different from the first temperature range; and
a controller configured to refresh a first number of rows in the plurality of first volatile memory devices according to a first refresh command from a host device, and refresh a second number of rows different from the first number of rows, in the plurality of second volatile memory devices according to a second refresh command from the host device,
wherein the first refresh command is determined based on a highest temperature or a lowest temperature among the temperatures of the plurality of first volatile memory devices, or the second refresh command is determined based on a highest temperature or a lowest temperature among the temperatures of the plurality of second volatile memory devices, and
wherein the plurality of first volatile memory devices and the plurality of second volatile memory devices are classified into groups based on current temperature information, and previous temperature information corresponding to the plurality of first and second volatile memory devices.