Patents by Inventor Harald Ebert

Harald Ebert 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).

  • Register stage having at least two memory stages for coordinating disparate clock signals for use in boundary scan
    Patent number: 5491699
    Abstract: For testing an integrated circuit with sequential logic its register stages are arranged in series as a shift register. This may give rise to delay time problems, which can be avoided by two-phase operation of the register stages, as is the case in, for example, the known LSSD technology. However, for a high processing speed edge-clocked register stages are more favorable. The invention therefore proposes register stages which can readily be switched between two-phase operation during testing and edge control in normal operation. For this only one additional clock line is required.
    Type: Grant
    Filed: June 2, 1994
    Date of Patent: February 13, 1996
    Assignee: U.S. Philips Corporation
    Inventors: Kurt Scheuermann, Harald Ebert