Patents by Inventor Roger F. MacLean

Roger F. MacLean 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).

  • Hierarchical data storage
    Patent number: 7869700
    Abstract: A method and system for encoding and recording data in a multi-stream format when the data is initially captured. The multiple streams of data can be combined to provide a high quality, or high resolution, representation, while a reduced subset of the streams can provide a lower quality, or lower resolution, representation. Data storage requirements can be reduced, by deleting one or more of the streams, when there is no longer a need for retention of the data at the higher quality.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: January 11, 2011
    Assignee: March Networks Corporation
    Inventors: Roger F. MacLean, Kenneth E. Maughan, Christian Joseph Eric Montminy