Patents by Inventor J. Spencer Grant

J. Spencer Grant 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).

  • Method and apparatus for characterizing and estimating the parameters of histological and physiological biometric markers for authentication
    Patent number: 7441123
    Abstract: A plurality of electronic signals corresponding to a histological and/or physiological marker, such as a heartbeat, are obtained, from an individual and are converted into electronic signal form. The signals are measured to obtain an actual measurement of a plurality of variable features of the electronic signals relating to the heartbeats. The measurements are mathematically analyzed to provide the probability of divergence of each actual measurement. Using the calculated probability of divergence, subsequent received waveforms measurements are analyzed for authentication purposes.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: October 21, 2008
    Assignee: Ensign Holdings
    Inventors: J. Spencer Grant, Rick V. Murakami, Clark Hinton, Matthew W. Pettit