Patents by Inventor Teresa L. C. Wu

Teresa L. C. Wu 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).

  • System for switching between two different operating systems by invoking the server to determine physical conditions to initiate a physical connection transparent to the user
    Patent number: 5483647
    Abstract: A hybrid system environment includes a proprietary operating system and processing unit and a non-proprietary operating system (UNIX based) and processing unit. The systems tightly couple to a system bus in common with a main memory and a number of multiline communications controllers and communicate through a common area of main memory. The UNIX terminal connections to such controllers are virtual connections applied by a virtual terminal driver through the system proprietary communications software components. These components include a server, a network terminal driver (NTD) and a number of multiplexer driver modules. A multiplexer physical terminal driver is included in the UNIX-based operating system and a switching mechanism is incorporated into the virtual terminal driver for enabling switching to such physical terminal driver when a user switches via a switch command to the UNIX-based operating system.
    Type: Grant
    Filed: December 17, 1992
    Date of Patent: January 9, 1996
    Assignee: Bull HN Information Systems Inc.
    Inventors: Kin C. Yu, Charles T. Mighill, Teresa L. C. Wu, Christopher R. M. Bailey, Steven D. Lizotte