Patents by Inventor Larry Mo

Larry Mo 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: 20070123188
    Abstract: Aspects for measuring receiver mixer IQ mismatch in a transceiver are described. The measuring includes providing a training signal for a receiver mixer, the training signal having periodic, uncorrelated I and Q signals. A phase mismatch in the receiver mixer is determined from IQ correlation over a unit period. A gain mismatch in the receiver mixer is determined from a power estimate of both I and Q signal for the unit period.
    Type: Application
    Filed: January 30, 2007
    Publication date: May 31, 2007
    Inventors: Larry Mo, Akira Yamanaka
  • Publication number: 20070038102
    Abstract: An ultrasound reconstruction unit is provided. In one embodiment, a receive aperture control engine for the unit adaptively determines a set of reconstruction signals based on at least a series of selected echo signals and compares the size of a receive aperture with a predetermined number of reconstruction channels at each imaging point. The unit passes the selected echo signals from selected receive channels of one or more transducer elements to a reconstruction processor if the size of the receive aperture is not greater than the number of reconstruction channels. In another embodiment, the control engine compares the size of the receive aperture with a predetermined number of reconstruction channels at each imaging point and preprocess the selected echo signals to produce reconstructions signals that are equal in number to the number of reconstruction channels if the size of the receive aperture is greater than the number of reconstruction channels.
    Type: Application
    Filed: June 13, 2006
    Publication date: February 15, 2007
    Inventors: Ching-Hua Chou, Glen McLaughlin, Larry Mo, Ting-Lan Ji
  • Publication number: 20060100520
    Abstract: Disclosed herein is the iterative selection of an optimal high pass filter for progressive, ordered filtering of clutter from ultrasound color flow imaging data wherein a criterion for selecting the optimal high pass filter is if a mean frequency of filtered signal data is less than a clutter frequency threshold wherein if the mean frequency is less than the clutter frequency threshold is determined by whether an absolute value of an imaginary part of a first order autocorrelation of the filtered signal data is less than a constant times a real part of the autocorrelation, where the constant is determined by the clutter frequency threshold, wherein a high pass filter input for each iterative selection is the original ultrasound color flow imaging data.
    Type: Application
    Filed: December 19, 2005
    Publication date: May 11, 2006
    Inventors: Larry Mo, Ching-Hua Chou, Ting-Lan Ji, Glen McLaughlin
  • Publication number: 20060079778
    Abstract: An ultrasound scanner is equipped with one or more fuzzy control units that can perform adaptive system parameter optimization anywhere in the system. In one embodiment, an ultrasound system comprises a plurality of ultrasound image generating subsystems configured to generate an ultrasound image, the plurality of ultrasound image generating subsystems including a transmitter subsystem, a receiver subsystem, and an image processing subsystem; and a fuzzy logic controller communicatively coupled with at least one of the plurality of ultrasound imaging generating subsystems.
    Type: Application
    Filed: October 7, 2004
    Publication date: April 13, 2006
    Applicant: Zonare Medical Systems, Inc.
    Inventors: Larry Mo, Glen McLaughlin, Brian DeBusschere, Ting-Lan Ji, Ching-Hua Chou, David Napolitano, Kathy Jedrzejewicz, Thomas Jedrzejewicz, Kurt Sandstrom, Feng Yin, Scott Smith, Wenkang Qi, Robert Stanson
  • Publication number: 20050131296
    Abstract: Methods for processing ultrasound signals are provided. Processing of ultrasound signals comprises identifying qualified reconstruction channels in a receive aperture, grouping qualified reconstruction channels in the aperture, and preprocessing of selected echo signals using the grouped qualified reconstruction channels to produce reconstruction signals. Additional methodologies comprise comparing a number of channels in a receive aperture with a number of reconstruction channels to determine a number of reconstruction signals and grouping qualified channels in the receive aperture such that the number of reconstruction data signals is not less than the number of reconstruction channels. An ultrasound reconstruction unit comprising a receive aperture control engine configured to use selected echo signals to adaptively determine a set of reconstruction signals is also provided.
    Type: Application
    Filed: January 31, 2005
    Publication date: June 16, 2005
    Inventors: Ching-Hua Chou, Glen McLaughlin, Larry Mo, Ting-Lan Ji