Hyun Sub Song

Title: Hyun Sub Song: Storage Innovation for CXL Systems

Introduction

Hyun Sub Song is an inventor based in Suwon, South Korea, and is associated with Samsung Electronics Co., Ltd. His patent work addresses storage-device operations and data transfer in systems using Compute Express Link (CXL) technology.

Latest Patents

Song is named on 1 patent: “High-speed compute express link storage transfer.” The invention describes a storage device, a method for operating it, and a storage system. The device uses a first memory to store data and a second memory to hold a bitmap indicating whether data in the first memory is dirty.

When the storage controller receives a transfer command from a CXL switch, it uses the bitmap to pre-fetch dirty data from the first memory into the second memory. The controller also sends the switch a request to flush cache data from at least one other external device connected to the switch. This approach coordinates data preparation and cache flushing during transfers to an external device.

Career Highlights

Song’s listed patent reflects work on memory management and high-speed data transfer in CXL-connected storage systems. His association with Samsung Electronics places this invention within the company’s broader technology and product-development environment.

Collaborations

Song’s listed coworkers include Won Seb Jeong and Hyeon Ho Song. The available information identifies them as coworkers but does not specify their roles in the patent.

Conclusion

Hyun Sub Song’s patent focuses on coordinating dirty-data pre-fetching and cache flushing to support storage transfers through a CXL switch.