Advantest had two patents in cybersecurity during Q1 2024. Advantest Corp has developed efficient testing systems and methods for compute express link (CXL) protocol compliant devices under test (DUTs). The system includes a user interface, a test board, and a tester with a direct access device (DAX) interface to prevent corruption of DUTs. Additionally, a stand-alone active thermal interposer device has been designed for testing unpackaged integrated circuit DUTs, with heating zones controlled by a thermal controller to maintain specific temperatures during testing. GlobalData’s report on Advantest gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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Advantest had no grants in cybersecurity as a theme in Q1 2024.
Recent Patents
Application: Systems and methods utilizing dax memory management for testing cxl protocol enabled devices (Patent ID: US20240095138A1)
The patent filed by Advantest Corp. describes an efficient testing system that includes a user interface, a test board for connecting multiple devices under test (DUTs) compliant with the compute express link (CXL) protocol, and a tester with a direct access device (DAX) interface to prevent DUT corruption. The system ensures isolation of testing for individual DUTs to prevent interference and memory corruption, particularly for CXL type 3 memory expander devices. The DAX interface creates a unique DAX instance for each DUT to maintain integrity during testing.
Additionally, the patent outlines a method for managing device testing, involving processes such as persistent device representation, power up and power down clean up. The method assigns and tracks CXL compliant DUTs based on unique reference indicators, ensuring proper targeting and persistence while connected to the test board. The power down process includes flushing CPU and cache data associated with testing operations, while the power up process involves waiting for BIOS enumeration without scanning devices. Overall, the patent focuses on enhancing testing efficiency and preventing corruption in CXL compliant devices through innovative testing systems and methods.
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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.
