Patents by Inventor Hsing H. Chiang

Hsing H. Chiang 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).

  • Cerebral biopotential analysis system and method
    Patent number: 5320109
    Abstract: Disclosed is a real time diagnostic apparatus and method quantitatively evaluating, in a noninvasive manner, cerebral phenomena. Surface electroencephalographic (EEG) signals are obtained and filtered in a desired frequency range. Digital EEG data is normalized and the dynamic phase and density relations within the signal are characterized by processing the filtered signals to generate Kth-ordered spectral values where K is an integer greater than 2. A diagnostic index which quantifies the detected cerebral phenomena is then derived from the generated Kth-order spectral values.
    Type: Grant
    Filed: October 25, 1991
    Date of Patent: June 14, 1994
    Assignee: Aspect Medical Systems, Inc.
    Inventors: Nassib G. Chamoun, Peter A. Mead, Hsing H. Chiang, Vikas Saini