Patents by Inventor Christopher L. Eddins

Christopher L. Eddins 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).

  • Apparatus and methods for remote detection of physiological changes
    Patent number: 8378879
    Abstract: An apparatus for sensing motion having a transmitter for transmitting a carrier signal; a frequency control connected to the transmitter for controlling the frequency of the carrier signal; a first receiver for receiving the reflected transmitted carrier signal; a second receiver for receiving the reflected transmitted carrier signal, the second receiver being placed out of phase by less than a wavelength of the carrier signal from the first receiver; means for subtracting the carrier signal received by the second receiver from the carrier signal received by the first receiver to produce an error signal; wherein when motion is sensed by the apparatus, the error signal moves from zero thereby causing a corrective signal to be generated and sent to the frequency control, the frequency control forcing the error signal to zero.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: February 19, 2013
    Assignee: The Johns Hopkins University
    Inventors: Douglas L. Lewis, Andrew E. Feldman, Christopher L. Eddins
  • Apparatus and Methods for Remote Detection of Physiological Changes
    Publication number: 20100321232
    Abstract: An apparatus for sensing motion having a transmitter for transmitting a carrier signal; a frequency control connected to the transmitter for controlling the frequency of the carrier signal; a first receiver for receiving the reflected transmitted carrier signal; a second receiver for receiving the reflected transmitted carrier signal, the second receiver being placed out of phase by less than a wavelength of the carrier signal from the first receiver; means for subtracting the carrier signal received by the second receiver from the carrier signal received by the first receiver to produce an error signal; wherein when motion is sensed by the apparatus, the error signal moves from zero thereby causing a corrective signal to be generated and sent to the frequency control, the frequency control forcing the error signal to zero.
    Type: Application
    Filed: June 17, 2010
    Publication date: December 23, 2010
    Inventors: Douglas L. Lewis, Andrew E. Feldman, Christopher L. Eddins
  • Thermal ionization detector
    Patent number: 6292105
    Abstract: An ionization chamber that detects changes in temperature of electrical insulation with a corresponding change in voltage. This voltage change can be relayed through an operational amplifier and a comparator to a device receiving the signal, thus triggering the necessary alarm and preventing fires caused by electrical arcing.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: September 18, 2001
    Assignee: The Johns Hopkins University
    Inventors: Bruce A. Land, III, John M. Klimek, Leo R. Gauthier, Jr., Christopher L. Eddins