Patents by Inventor Paul D. Kreiser

Paul D. Kreiser 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).

  • LSSD edge detection logic for asynchronous data interface
    Patent number: 4962474
    Abstract: An interface between a computer and an asynchronous communications line in which asynchronous data on the communications line sets a register made up of latches designed according to LSSD rules, which is then read out and reset in synchronism with the computer. The latches for each individual bit position of the register are edge triggered providing for maximum speed of transmission and are designed to be tested using LSSD test criteria. Data is frozen in the register upon receipt of a data valid signal. The contents of the register are then synchronously gated internally within the computer.
    Type: Grant
    Filed: November 17, 1987
    Date of Patent: October 9, 1990
    Assignee: International Business Machines Corporation
    Inventor: Paul D. Kreiser