Patents by Inventor Francis Y. Chu

Francis Y. Chu 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: 5511116
    Abstract: A data table for organizing data used by call processing procedures in a telephone service execution environment of a telecommunication network. The data table includes a table header for identifying the data table. Data in the table is organized in one or more rows corresponding to one or more columns. The data table further includes a table specification for defining the one or more columns of the data table. Data tables can be created in a telephone service creation environment in the telecommunication network and can be accessed by one or more call processing records for executing telephone services during telephone service execution. The call processing records comprise a plurality of nodes and branches, each node representing a particular call processing procedure. The data tables are stored in a data base in the telephone service creation environment.
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: April 23, 1996
    Assignee: Bell Communications Research Inc.
    Inventors: Subramanya K. Shastry, Francis Y. Chu, Susan K. Man, Zaher A. Nazif
  • Patent number: 5481601
    Abstract: A system for creating, transferring, and monitoring services in a telecommunication system includes a service creation and management application and a service execution application. Services are created as call processing records, each call processing record comprises call processing nodes, branches and call variables. An interface specification is provided which permits the creation and management application to communicate with the execution application at a high level. Call processing records, data, and management information to be exchanged between the creation and management application and the execution application are encoded in accordance with the interface specification to permit the effective and efficient communication between the two applications and to permit the system to activate, monitor, trace, audit, and manage telecommunication services.
    Type: Grant
    Filed: March 17, 1995
    Date of Patent: January 2, 1996
    Assignee: Bell Communications Research Inc.
    Inventors: Zaher A. Nazif, Subramanya K. Shastry, Susan K. K. Man, Edith H. Chu, Francis Y. Chu, Gregory M. Fisher, Mohammad S. Nassirpour
  • Patent number: 5442690
    Abstract: A call processing record for execution in a telephone service execution environment of a telecommunication network. The call processing record includes a record header which associates the call processing record with one or more corresponding telephone service subscribers. The call processing record further includes one or more call processing logic sections, one or more local data sections, one or more entry points, and a global data section. The local data sections are associated with an entry point in a corresponding logic section and store data executable only by the associated call processing logic. The entry point identifies the associated call processing logic section. The global data section includes data executable by each of the call processing logic sections.
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: August 15, 1995
    Assignee: Bell Communications Research, Inc.
    Inventors: Zaher A. Nazif, Kathleen D. Cebulka, Francis Y. Chu, Gregory M. Fisher, Jill E. Lancaster, Susan K. Man, Subramanya K. Shastry, Lori J. Vinciguerra, Lei-Lei C. Wang