18372949. STORAGE DEVICE AND STORAGE SYSTEM INCLUDING THE SAME simplified abstract (Samsung Electronics Co., Ltd.)

STORAGE DEVICE AND STORAGE SYSTEM INCLUDING THE SAME

Organization Name

Samsung Electronics Co., Ltd.

Inventor(s)

Chul Ho Lee of Hwaseong-si (KR)

Ki Jong Nam of Hwaseong-si (KR)

Won-Gi Hong of Seoul (KR)

STORAGE DEVICE AND STORAGE SYSTEM INCLUDING THE SAME - A simplified explanation of the abstract

This abstract first appeared for US patent application 18372949 titled 'STORAGE DEVICE AND STORAGE SYSTEM INCLUDING THE SAME

Simplified Explanation

The patent application describes a storage device and system that includes a nonvolatile memory, a temperature sensor, and a storage controller. The storage device is capable of performing patrol reads and retention operations based on temperature and error detection.

• The storage device has a nonvolatile memory with a valid page and a free page.
• A temperature sensor is included to measure the temperature of the nonvolatile memory.
• The storage controller implements a patrol read module to read valid data from the valid page and identify errors within a set time period.
• A retention module is also implemented to read the valid data from the valid page based on temperature or the number of errors detected.
• The retention module then writes the valid data to the free page while controlling the threshold voltage distribution width corresponding to the value of the data written.

Potential applications of this technology:

• Data storage devices and systems that require efficient error detection and correction mechanisms.
• Devices and systems that operate in varying temperature environments and need to adapt their data retention strategies accordingly.

Problems solved by this technology:

• Efficient error detection and correction in nonvolatile memory.
• Optimization of data retention strategies based on temperature and error detection.

Benefits of this technology:

• Improved data reliability and integrity.
• Enhanced performance and longevity of nonvolatile memory.
• Adaptability to varying temperature conditions for optimized data retention.

Original Abstract Submitted

A storage device and a storage system including the same are provided. The storage device includes a nonvolatile memory with a valid page and a free page; a temperature sensor configured to sense a temperature of the nonvolatile memory; and a storage controller configured to implement: a patrol read module configured to read valid data stored in the valid page and identify a number of errors in the read valid data according to a set time period, and a retention module configured to, based on the temperature or the number of errors, read the valid data stored in the valid page, and write the valid data to the free page while controlling a threshold voltage distribution width corresponding to a value of the valid data written to the free page.