Patents Assigned to Ann Adcock Corporation
  • Method of comparing utterances for security control
    Patent number: 6161094
    Abstract: A security method compares a present verbal utterance with a previously recorded verbal utterance by comparing frequency domain representations of the utterances, with multiple repeat utterances forming a basis for determining a variation in repetitious performance by an individual, and similar differences between enrollment and challenge utterances forming a basis for a similar analysis of variance between enrollment and challenge utterances. In one embodiment a set of enrollment data is searched by each challenge until either a match is made, indicating an action, possibly dependent upon the specific match, or no match is made indicating an abort.
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: December 12, 2000
    Assignee: Ann Adcock Corporation
    Inventors: Sherrie Adcock, Gerald S. Schwartz
  • Speaker and command verification method
    Patent number: 5835894
    Abstract: A security method compares a present verbal utterance with a previously recorded verbal utterance by comparing frequency domain representations of the utterances, with multiple repeat utterances forming a basis for determining a variation in repetitious performance by an individual, and similar differences between enrollment and challenge utterances forming a basis for a similar analysis of variance between enrollment and challenge utterances. In one embodiment a set of enrollment data is searched by each challenge until either a match is made, indicating an action, possibly dependent upon the specific match, or no match is made indicating an abort.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: November 10, 1998
    Assignee: Ann Adcock Corporation
    Inventors: Sherrie Ann Adcock, Gerald S. Schwartz