Rambus has been granted a patent for a memory device that includes a row of storage locations with data and tag columns for error correction. The device uses error information from the tag column to repair bit errors in the data columns. GlobalData’s report on Rambus gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Rambus, M2M communication interfaces was a key innovation area identified from patents. Rambus's grant share as of February 2024 was 70%. Grant share is based on the ratio of number of grants to total number of patents.
Memory device with error correction and repair circuitry
A recently granted patent (Publication Number: US11921576B2) discloses a memory device with advanced repair capabilities. The memory device includes memory core circuitry with multiple rows of data storage locations and error storage locations, memory interface circuitry to receive write commands, and repair circuitry that accesses error information from the error storage locations to facilitate repair operations. The error information includes address information identifying known failure locations within the activated row, allowing for targeted repair actions.
Furthermore, the patent extends to an integrated circuit (IC) memory chip with similar features, including memory core circuitry with multiple rows of storage locations, memory interface circuitry for activating rows, and repair circuitry that accesses row-specific error information for repair operations. The repair circuitry selectively performs repair operations by extracting data bits from specific columns associated with known failure locations, enhancing the efficiency and effectiveness of the repair process. The error information in both the memory device and IC memory chip includes error correction code (ECC) parity information, ensuring data integrity and reliability in memory operations. Overall, the patented technology offers innovative solutions for memory repair and maintenance in dynamic random access memory (DRAM) chips, enhancing performance and longevity in memory systems.
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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.
