Patents by Inventor Peter Y. Kui

Peter Y. Kui 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).

  • Distributed data access system including a plurality of database access processors with one-for-N redundancy
    Patent number: 5621884
    Abstract: In a distributed data access system in which a plurality of computers maintain and provide access to a database of stock exchange information, 1-for-N redundancy is provided by operating one computer in a standby mode, while the other computers operate online. Each online computer provides access to the database to a predefined set of a geographically broad plurality of users. The set of users for any online computer is defined by user connectivity data structures that define connectivity between the user set and the computer. When a failure is detected in any one of the computers, the user connectivity data structures of that computer are provided to the standby computer, which then assumes all operations of the failed computer. An arbitrator computer facility observes the health and determines the status of each of the computers, including the standby computer, and controls the transfer of online status from a failed computer to the standby computer.
    Type: Grant
    Filed: January 18, 1995
    Date of Patent: April 15, 1997
    Assignee: Quotron Systems, Inc.
    Inventors: Norman J. Beshears, Douglas Flanagan, Peter Y. Kui
  • Distributed data access system including a plurality of database access processors with one-for-N redundancy
    Patent number: 5408649
    Abstract: In a distributed data access system in which a plurality of computers maintain and provide access to a database of stock exchange information, 1-for-N redundancy is provided by operating one computer in a standby mode, while the other computers operate online. Each on-line computer provides access to the database to a predefined set of a geographically broad plurality of users. The set of users for any on-line computer is defined by user connectivity data structures that define connectivity between the user set and the computer. When a failure is detected in any one of the computers, the user connectivity data structures of that computer are provided to the standby computer, which then assumes all operations of the failed computer. An arbitrator computer facility observes the health and determines the status of each of the computers, including the standby computer, and controls the transfer of online status from a failed computer to the standby computer.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: April 18, 1995
    Assignee: Quotron Systems, Inc.
    Inventors: Norman J. Beshears, Douglas Flanagan, Peter Y. Kui