Patents by Inventor Donald Madson

Donald Madson 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).

  • Emergency call station identification system
    Patent number: 5347568
    Abstract: A device for identifying a specific station, among a plurality of geographically-dispersed stations represented by a common phone number and serviced by a common PBX, which has initiated an emergency "9-1-1" telephone call. The specific station having initiated the call is identified to the appropriate public safety answering point (PSAP) which is connected in an enhanced "9-1-1" emergency call network. Typically, the PSAP and PBX have different protocols. The device functions to convert the protocol of the PBX to the protocol of the emergency call network. Further, it assigns an arbitrary designation representing the specific station identified as having initiated the emergency call. Further, the invention transmits the arbitrary designation to the appropriate PSAP for responding to the call.
    Type: Grant
    Filed: July 9, 1993
    Date of Patent: September 13, 1994
    Assignee: Telident, Incorporated
    Inventors: Martin Moody, Donald Madson, Gordan Osgood
  • Emergency call station identification system and method
    Patent number: 5235630
    Abstract: A device for identifying a specific station, among a plurality of geographically-dispersed stations represented by a common phone number and serviced by a common PBX, which has initiated an emergency "9-1-1" telephone call. The specific station having initiated the call is identified to the appropriate public safety answering point (PSAP) which is connected in an enhanced "9-1-1" emergency call network. Typically, the PSAP and PBX have different protocols. The device functions to convert the protocol of the PBX to the protocol of the emergency call network. Further, it assigns an arbitrary designation representing the specific station identified as having initiated the emergency call. Further, the invention transmits the arbitrary designation to the appropriate PSAP for responding to the call.
    Type: Grant
    Filed: April 17, 1991
    Date of Patent: August 10, 1993
    Assignee: Telident, Incorporated
    Inventors: Martin Moody, Donald Madson, Gordan Osgood