Virtually reliable shared memory

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United States of America Patent

PATENT NO 5991893
SERIAL NO

08921275

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The inventive computer system uses a layer of software between the operating system and the hardware that localizes the fail-safe protocols into a single module. The system also uses shared memory allocation functions as the interface with the operating system. The memory allocation function creates data structures to satisfy the requests of the operating system. The system also has a data structure locking mechanism to prevent more than one processor from writing to the data structure at a time. This layer isolates and hides the complexities of the underlying hardware and memory sharing, and presents a simpler view of the hardware as a single system to the operating system that resides above it. Since all of the fail-safe code is in one single module, rather than distributed throughout the operating system, it is easier to test and verify its correct operation, as well as maintain the operating system.

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Patent Owner(s)

  • SAMSUNG ELECTRONICS CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Snider, Gregory S Mountain View, CA 82 1400

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