Patents by Inventor Hongmei Cai

Hongmei Cai 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).

  • System and method for the detection and removal of radio frequency noise artifact from biopotential signals
    Patent number: 6985833
    Abstract: A system and method of identifying and removing artifact from radio frequency noise from biopotentials identifies epochs contaminated with radio frequency noise. Contaminated epochs are then replaced with recent uncontaminated epochs stored in a buffer, depending on the current level of artifact and the availability of suitable data. Discontinuities arising at the beginning of the replaced epochs are smoothed by means of a windowing function.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: January 10, 2006
    Assignee: Aspect Medical Systems, Inc.
    Inventors: John R. Shambroom, Charles P. Smith, Hongmei Cai, Edwin Merrick
  • System and method for the detection and removal of radio frequency noise artifact from biopotential signals
    Publication number: 20030052775
    Abstract: A system and method of identifying and removing artifact from radio frequency noise from biopotentials identifies epochs contaminated with radio frequency noise. Contaminated epochs are then replaced with recent uncontaminated epochs stored in a buffer, depending on the current level of artifact and the availability of suitable data. Discontinuities arising at the beginning of the replaced epochs are smoothed by means of a windowing function.
    Type: Application
    Filed: June 21, 2002
    Publication date: March 20, 2003
    Applicant: Aspect Medical Systems, Inc.
    Inventors: John R. Shambroom, Charles P. Smith, Hongmei Cai, Edwin Merrick
  • Electric comb
    Patent number: D850718
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: June 4, 2019
    Inventor: Hongmei Cai