Patents by Inventor Stephen MacArthur

Stephen MacArthur 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).

  • Data storage system having multi-cast/unicast
    Patent number: 6816916
    Abstract: A system interface includes a plurality of first directors, a plurality of second directors, a data transfer section and a message network. The data transfer section includes a cache memory. The cache memory is coupled to the plurality of first and second directors. The messaging network operates independently of the data transfer section and such network is coupled to the plurality of first directors and the plurality of second directors. The first and second directors control data transfer between the first directors and the second directors in response to messages passing between the first directors and the second directors through the messaging network to facilitate data transfer between first directors and the second directors. The data passes through the cache memory in the data transfer section. A method for operating a data storage system adapted to transfer data between a host computer/server and a bank of disk drives.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: November 9, 2004
    Assignee: EMC Corporation
    Inventors: David Black, Stephen MacArthur, Richard Wheeler, Natan Vishlitzky
  • Data storage system having separate data transfer section and message network with pointer or counters
    Patent number: 6742017
    Abstract: A system interface includes a plurality of first directors, a plurality of second directors, a data transfer section and a message network. The data transfer section includes a cache memory. The cache memory is coupled to the plurality of first and second directors. The messaging network operates independently of the data transfer section and such network is coupled to the plurality of first directors and the plurality of second directors. The first and second directors control data transfer between the first directors and the second directors in response to messages passing between the first directors and the second directors through the messaging network to facilitate data transfer between first directors and the second directors. The data passes through the cache memory in the data transfer section. A method for operating a data storage system adapted to transfer data between a host computer/server and a bank of disk drives.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: May 25, 2004
    Assignee: EMC Corporation
    Inventors: David Black, Stephen MacArthur, Richard Wheeler