Patent Application for Random Read Tracking in Non-Volatile Memory Devices

Strategic Insights -

Researchers at Kioxia Corporation have submitted a patent application for a system that enhances the performance of non-volatile memory devices by dynamically adjusting read thresholds based on the number of errors in a page. This approach aims to improve reading data from non-volatile memory devices, which are widely used in data storage applications. The system's controller determines information on the number of errors for a page and adjusts the read threshold accordingly to reduce the impact of errors on data reading.

Key Takeaways:

  • The patent application, filed by Ofir Kanter, Yasuhiko Kurosawa, Eyal Nitzan, Avi Steiner, and Hanan Weingarten, proposes a system that improves the performance of non-volatile memory devices by dynamically adjusting read thresholds.
  • The system's controller determines information on the number of errors for a page and adjusts the read threshold accordingly to reduce the impact of errors on data reading.
  • The application describes a method for determining information on the number of errors for a page, determining a second read threshold based on the first read threshold and the number of page errors, and applying the second read threshold for subsequently reading data stored on the page.
  • The system includes instructions stored on a non-transitory computer readable medium that are executable by a processor to determine information on the number of errors for a page, determine a second read threshold, and apply the second read threshold.
  • The patent application also describes a method that includes determining information on the number of errors for a page, determining a second read threshold based on the first read threshold and the number of page errors, and applying the second read threshold for subsequently reading data stored on the page.
  • The system's controller stores information on the number of errors for the page and Meta Data (MD) in a First-In First Out (FIFO) and retrieves the information for determining the second read threshold.
  • The proposed system is directed at improving the performance of non-volatile memory devices by dynamically adjusting read thresholds based on the number of errors in a page.

Statistics:

  • The patent application was filed on March 27, 2024.
  • The patent application number is 20250308614.
  • The patent application was posted on October 2, 2025.
  • The patent application describes a system that improves the performance of non-volatile memory devices by dynamically adjusting read thresholds.

Sources:

  • Kanter, O., Kurosawa, Y., Nitzan, E., Steiner, A., & Weingarten, H. (2025). Random Read Tracking In Non-Volatile Memory Devices. U.S. Patent Application Number 20250308614, filed March 27, 2024 and posted October 2, 2025. Patent URL (for desktop use only): https://ppubs.uspto.gov/pubwebapp/external.html?q=(20250308614)&db=US-PGPUB&type=ids
  • NewsRx LLC (2025). Patent Application for Random Read Tracking in Non-Volatile Memory Devices.