Patents by Inventor Michael P. Slack

Michael P. Slack 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).

  • Patent number: 5113399
    Abstract: A MEMORY TEST METHODOLOGY is disclosed. The memory is checkerboarded and divided into blocks, the cells of which are scrambled by a EEPROM. The memory is the assaulted. After each assault, one block (time-test) is tested in alternation with each of the other blocks (space-test) by reading each cell of the clock, comparing it with the checkerboard, and writing the opposite of the checkerboard to the cell. When this process has been completed for all blocks, it is repeated, this time writing the checkerboard to each cell. Failures are noted on a fast capture RAM. This cycle is repeated several times. The data is displayed, and the memory is assaulted again. It is re-checkerboarded immediately before the assault. Errors in the time test block are displayed separately from those in the space-test blocks, and both displays are repeated in the same format after each assault.
    Type: Grant
    Filed: April 17, 1990
    Date of Patent: May 12, 1992
    Assignee: Rockwell International Corporation
    Inventors: Ralf D. Woods, Michael P. Slack, Kenneth M. Gerst