Patents by Inventor Matthew D. Cross

Matthew D. Cross 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).

  • Publication number: 20250155407
    Abstract: A sensor includes a microcontroller coupled to a sensing oscillator, a reference oscillator, an environmental sensor, and a communication medium. The sensing oscillator may be less than two inches long and contain a component that changes in oscillation frequency in response to an aerosol particle, liquid-borne analyte, and/or chemical vapor attaching, depositing, and/or interacting with an outer surface of the component. The reference oscillator and environmental sensor may be used to calibrate the sensing oscillator. Data from the sensing oscillator, the reference oscillator and/or the environmental sensor is transferred to an external source by the communication medium.
    Type: Application
    Filed: August 28, 2024
    Publication date: May 15, 2025
    Applicant: The Johns Hopkins University
    Inventors: Rebecca G. Lilly, Felix C. Sage, Jeffrey F. Garstecki, Leah S. Talbott, Jason M. Klimek, Sherry Chiu, Corrine E. Fuller, Brian E. Damit, Charles C. Young, Christopher J. Rosenker, Matthew D. Cross
  • Patent number: 8242818
    Abstract: Described is a frequency synthesizer having a wide output frequency range and small frequency tuning steps. In-band spurious components are maintained at low levels and phase noise is significantly reduced. The frequency synthesizer can be fabricated as an integrated circuit device having a small area and low power dissipation. The frequency synthesizer can be used in wideband frequency systems to reduce cost and size by replacing multiple frequency synthesizers each devoted to a portion of the overall system frequency range.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: August 14, 2012
    Assignee: Massachusetts Institute of Technology
    Inventors: Helen H. Kim, Matthew D. Cross, Merlin R. Green, Daniel D. Santiago
  • Publication number: 20110148484
    Abstract: Described is a frequency synthesizer having a wide output frequency range and small frequency tuning steps. In-band spurious components are maintained at low levels and phase noise is significantly reduced. The frequency synthesizer can be fabricated as an integrated circuit device having a small area and low power dissipation. The frequency synthesizer can be used in wideband frequency systems to reduce cost and size by replacing multiple frequency synthesizers each devoted to a portion of the overall system frequency range.
    Type: Application
    Filed: December 22, 2009
    Publication date: June 23, 2011
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Helen H. Kim, Matthew D. Cross, Merlin R. Green, Daniel D. Santiago