Silicon Motion Technology has patented a method for reading data in flash memory. The method involves obtaining threshold voltage distributions of memory cells, then performing read operations based on these distributions. This innovation allows for efficient data retrieval from flash memory. GlobalData’s report on Silicon Motion Technology gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Silicon Motion Technology, M2M communication interfaces was a key innovation area identified from patents. Silicon Motion Technology's grant share as of January 2024 was 78%. Grant share is based on the ratio of number of grants to total number of patents.

Method for reading flash memory using different threshold voltage distributions

Source: United States Patent and Trademark Office (USPTO). Credit: Silicon Motion Technology Corp

A recently granted patent (Publication Number: US11881269B2) discloses a method and system for reading data stored in a flash memory. The method involves obtaining codewords from different sets of memory cells, determining voltage characteristics based on these codewords, and reading the flash memory using these characteristics. Additionally, the method includes adjusting control gate voltage based on shifting directions determined by the codewords. The patent emphasizes the differentiation between voltage characteristics and the utilization of these characteristics for efficient data retrieval from flash memory.

Furthermore, the patent describes a memory controller that implements the method for reading data from flash memory. The memory controller includes control logic for obtaining voltage characteristics, adjusting control gate voltage, and reading the flash memory efficiently. It also focuses on error detection and correction mechanisms to ensure accurate data retrieval. The patent highlights the integration of these processes within the memory controller to enhance the overall performance of reading data from flash memory. Overall, the patent aims to optimize the reading process of flash memory by utilizing specific voltage characteristics and implementing error correction techniques for improved data accuracy.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.