Patents by Inventor William W. Parker

William W. Parker 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).

  • Periodic process timer
    Patent number: 6385637
    Abstract: A periodic process timer is incorporated into a multi-tasking operating system of an automatic call distributor system.
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: May 7, 2002
    Assignee: Rockwell Science Center, Inc.
    Inventors: Michael Peters, Paul D. Swardstrom, William W. Parker
  • Virtual PBX call processing method
    Patent number: 4764919
    Abstract: A virtual PBX capability is provided to a group of user packet stations served by a packet switching system. The system establishes a virtual circuit between each distinct pair of stations in the group. The stations exchange signaling packets via the virtual circuits and respond to such packets by coordinating the initiation and disconnection of voice, data, or image calls. All call processing, including the provision of features such as call forwarding and automatic callback, is accomplished by the stations without the aid of the switching system. A fraud prevention mechanism is included in the switching system to prevent unauthorized stations from communicating as part of the virtual PBX group.
    Type: Grant
    Filed: September 5, 1986
    Date of Patent: August 16, 1988
    Assignee: American Telephone and Telegraph Company, AT&T Bell Laboratories
    Inventors: Paul D. Hunter, William W. Parker, Benjamin C. Widrevitz