Patents by Inventor F. Blair Simmons

F. Blair Simmons 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: 3938500
    Abstract: A hearing screening apparatus of the type for measuring hearing of a human subject by measuring the change in subject motor activity in response to an unexpected auditory stimulus. The apparatus includes an audio signal reproducer spaced from the subject and a motion transducer coupled to receive subject motor activity and having an output. Means is provided for recording the transducer output as a function of time. Control means is provided for recording subject base line motor activity and at a predetermined time simultaneously transmitting an auditory test signal stimulus via said reproducer and recording subject motor activity response to said test signal stimulus.
    Type: Grant
    Filed: August 19, 1974
    Date of Patent: February 17, 1976
    Assignee: The Board of Trustees of Leland Stanford Junior University
    Inventor: F. Blair Simmons