Patents Represented by Attorney Shelley Beckstrand

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  • System and method for IP packet filtering based on non-IP packet traffic attributes
    Patent number: 7209962
    Abstract: Control and management of communication traffic. IP packet filtering occurs in an operating system kernel implementation of, for example, the TCP/IP protocol suite. Access rules are expressed as filters referencing system kernel data; for outbound processing, source application indicia is determined; for inbound packet processing, a look-ahead function is executed to determine target application indicia; and responsive to the source or target application indicia, filter processing is executed.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: April 24, 2007
    Assignee: International Business Machines Corporation
    Inventor: Edward B. Boden
  • Variable cyclic redundancy coding method and apparatus for use in a multistage network
    Patent number: 5734826
    Abstract: An error checking method and apparatus for appending a variable number of redundancy coding information at the end of each data message or packet transmitted over a multi-stage network for the purpose of protecting the data by using an error detecting code. The amount of additional redundancy coding information implemented is variable and increases with the size of the data message or packet to provide a consistent level of protection.
    Type: Grant
    Filed: September 17, 1992
    Date of Patent: March 31, 1998
    Assignee: International Business Machines Corporation
    Inventors: Howard Thomas Olnowich, Miguel Mario Blaum, Jehoshua Bruck
  • Apparatus and method using a programmable logic array for decoding an operation code and providing a plurality of sequential output states
    Patent number: 4660171
    Abstract: Apparatus and method for decoding computer operation codes. The operation code is decoded into a single product term in the AND array of a programmable logic array. That single product term is then processed through a clock driven sequencer to generate a plurality of sequential product terms. These sequential product terms are decoded by the OR array of the programmable logic array to generate a plurality of sequential time states comprising the decoded operation code.
    Type: Grant
    Filed: December 21, 1981
    Date of Patent: April 21, 1987
    Assignee: International Business Machines Corp.
    Inventors: Victor S. Moore, Wayne R. Kraft, Joseph C. Rhodes, Jr.