Patents by Inventor Gerhard P. H. Deffner

Gerhard P. H. Deffner 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: 5717743
    Abstract: A transparent telephone access system using voice authorization includes a method and system (30 and 60) to protect against the unauthorized use of telephone network (20). By receiving a spoken telephone number (14) from telephone unit (16) and recognizing the spoken phrase that corresponds to telephone number (24), the method and system permit transmission through telephone network (20) to telephone (22). The method and system record spoken phrase (14) in voice recognition server system (18). For the spoken phrase, a voice-template is formed and compared with a voice template formed from a composed phrase including pre-existing or stored spoken digits. In response to the comparison, use of telephone system (16) through telephone network (20) is permitted.
    Type: Grant
    Filed: October 23, 1996
    Date of Patent: February 10, 1998
    Assignee: Texas Instruments Incorporated
    Inventors: Michael L. McMahan, Gerhard P. H. Deffner, Billy W. Hensley
  • Patent number: 5339361
    Abstract: A communication system (10 and 100) is provided with a verification mechanism (16) to identify both the sender and recipient of electronic information (20). Input devices (12) in cooperation with verification mechanism (16) may be used to confirm the identity and authority of a sender to place electronic information (20) on communications network (14). Output devices (18) in cooperation with verification mechanism (16) may be used to confirm the identity and authority of a recipient of electronic information (20). Verification mechanism (16) and communication network (14) may also provide the sender and the recipient with an automatic date time stamp for delivery of electronic information (20).
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: August 16, 1994
    Assignee: Texas Instruments Incorporated
    Inventors: Robert C. Schwalm, Gerhard P. H. Deffner