Patents by Inventor Donal Casey

Donal Casey 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).

  • Method for selecting virtual channels based on address priority in an asynchronous transfer mode device
    Patent number: 6163541
    Abstract: An address look-up data-base is used to store medial access control addresses for resolution into channel numbers in a system for transmitting data in an asynchronous transfer mode. Static random access memory is used to contain pointer tables, there being a pointer table for each possible priority level in the data packet. Thus a search for the media access control address of a data packet in the content addressable memory yields, among other data, a priority value which when combined with other data points to a location in one of the pointer tables, which accesses the appropriate channel number.
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: December 19, 2000
    Assignee: 3Com Technologies
    Inventors: Donal Casey, Anne O'Connell, Dipak M. L. Soni, Peter A. Saunderson