Patents by Inventor Edward Henry Younk

Edward Henry Younk 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).

  • System and method for optimizing random XOR command performance
    Patent number: 7526605
    Abstract: Multiple disk access commands such as XOR commands are broken down into their constituent read and write parts and, if in LBA sequence, coalesced into pipes. These XOR read and write commands are then provided to the RPO algorithm of the HDD for scheduling along with data reads and writes. The actual XOR buffer operation is also scheduled by the RPO algorithm, advantageously to occur during a seek for another read or write.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: April 28, 2009
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Adam Michael Espeseth, Edward Henry Younk
  • System and method for optimizing sequential XOR command performance
    Patent number: 7334081
    Abstract: An RPO algorithm in a HDD coalesces LBA-sequential XOR commands in pipes, and passes the pipes to a lower level execution engine. The execution engine executes XOR reads and write separately to optimize performance using head and/or cylinder skew information to approach the nominal disk data rate.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: February 19, 2008
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Adam Michael Espeseth, Edward Henry Younk