Patents by Inventor John Edward Larson

John Edward Larson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Transaction generator for initialization, rebuild, and verify of memory
    Patent number: 7155568
    Abstract: A transaction generator generates memory transactions identical to processor memory transactions to initialize, rebuild, and verify memory added or replaced during operation of a computer system configured for RAID memory. The transactions read and rewrite the correct value for replaced memory and write a known good value for added memory. Memory writes are verified by a read after the write transaction. The transaction generator is a state machine. A first counter is used for holding memory addresses of the transactions, automatically incrementing after each transaction. A second counter can throttle the generation of transactions by controlling the incrementation speed of the first counter. Transactions generated by the transaction generator have a transaction identifier, selected from a pool of available transaction identifiers. The transactions can complete out of order.
    Type: Grant
    Filed: September 29, 2001
    Date of Patent: December 26, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Elizabeth Anne Richard, John Edward Larson, Robert Allan Lester
  • Transaction generator for initialization, rebuild, and verify of memory
    Publication number: 20030079073
    Abstract: A transaction generator generates memory transactions identical to processor memory transactions to initialize, rebuild, and verify memory added or replaced during operation of a computer system configured for RAID memory. The transactions read and rewrite the correct value for replaced memory and write a known good value for added memory. Memory writes are verified by a read after the write transaction. The transaction generator is a state machine. A first counter is used for holding memory addresses of the transactions, automatically incrementing after each transaction. A second counter can throttle the generation of transactions by controlling the incrementation speed of the first counter. Transactions generated by the transaction generator have a transaction identifier, selected from a pool of available transaction identifiers. The transactions can complete out of order.
    Type: Application
    Filed: September 29, 2001
    Publication date: April 24, 2003
    Inventors: Elizabeth Anne Richard, John Edward Larson, Robert Allan Lester