Patents by Inventor Michael Y. Lu

Michael Y. Lu 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: 20020172936
    Abstract: The present invention relates to an apparatus and method for disease detection. The apparatus and method use a radiation source to irradiate a sample. An analyzer measures the absorption and/or emission spectra from the sample to detect the presence of the disease state in the sample. In this regard, a comparator may compare the measured spectra with the spectrum of a control. Analysis of the parameters of the spectra including, but not limited to, peak intensity wavelength, amplitude at the peak intensity, area ratio of left and right portions of the emission spectra, and shifts of the peak intensity wavelength, allows determination of HIV infection, Hepatitis A, B and C, and other diseases. Selective absorbents, such as C-M Affi Gel Blue and activated charcoal, may be used to treat the samples before measurements, which is found to improve discrimination of diseased and non-diseased samples.
    Type: Application
    Filed: November 8, 1999
    Publication date: November 21, 2002
    Inventors: JOSEPH M. CANTER, YONGWU YANG, WANGLONG ZHOU, VICTOR S. SAPIRSTEIN, MELVIN P. EHRLICH, JAMES S. HARRISON, EUGENE KATSMAN, OMANAND KOUL, MICHAEL Y. LU, MICHAEL A. GREENWALD
  • Patent number: 6159159
    Abstract: A quantitative process for monitoring female fertility cycle wherein the process involves directing a laser beam, preferably generated by a diode laser, onto an area of a slide containing an air-dried sample of a female body fluid. The diffraction pattern resulting from the sample is detected by a two-dimensional photo diode array and analyzed by a microprocessor. If a ferning pattern exists, such pattern will generate a characteristic structure in the diffraction pattern which is then detected by the photo diode array. If no ferning occurs, the corresponding diffraction pattern will be structureless. The microprocessor is programmed with an algorithm to produce a quantitative index of ferning indicating quantitatively the ferning level. Preferably, a plurality of spots on the sample are measured to determine the ferning level at each spot, and the microprocessor then makes a final determination as to final ferning level on the basis of the test results of all of the spots.
    Type: Grant
    Filed: December 31, 1998
    Date of Patent: December 12, 2000
    Assignee: SerOptix, Inc.
    Inventors: Joseph M. Canter, Yongwu Yang, Wanglong Zhou, Victor S. Sapirstein, Melvin P. Ehrlich, James S. Harrison, Eugene Katsman, Omanand Koul, Michael Y. Lu, Michael A. Greenwald
  • Patent number: 5539290
    Abstract: A motor control system for controlling operation of an electric motor associated with a motor-operated vent in a vehicle. The system monitors and stores data relating to the operating current and detects occurrences of abnormal loads applied to the vent by determining whether the monitored operating current exceeds one of several predetermined thresholds. The predetermined thresholds are dynamically modified in accordance with monitored condition variations of the operating current. The dynamically modified thresholds are initially based on either a value associated with the stall current of the vent motor or the start spike current of the vent motor. In addition, an embodiment is provided for monitoring and storing data relating to ripple current waves associated with the operating current, so that occurrences of abnormal loads may be detected by determining whether the frequency of the monitored ripple current waves is less than a predetermined value.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: July 23, 1996
    Assignee: Prospects Corporation
    Inventors: Michael Y. Lu, Peter J. Pan, Cliff L. Chuang
  • Patent number: 5402075
    Abstract: A capacitive moisture sensor includes insulator means; capacitance means including a sensing capacitor having a plurality of spaced capacitive sensor conductors mounted with the insulator means for exposure to the atmosphere; and first and second electrodes mounted with the insulator means remote from the spaced capacitive sensor conductors; means for applying a periodic input current across the first and second electrodes; and means for detecting a change in capacitance between the first and second electrodes indicative of moisture bridging at least two of the capacitive sensor conductors.
    Type: Grant
    Filed: September 29, 1992
    Date of Patent: March 28, 1995
    Assignee: Prospects Corporation
    Inventors: Michael Y. Lu, Peter J. Pan, James S. Li, Cliff L. Chuang
  • Patent number: 5399950
    Abstract: A motor control system for controlling operation of an electric motor associated with a motor-operated vent in a vehicle. The system monitors and stores data relating to the operating current and detects occurrences of abnormal loads applied to the vent by determining whether the monitored operating current exceeds one of several predetermined thresholds. The predetermined thresholds are dynamically modified in accordance with monitored condition variations of the operating current. The dynamically modified thresholds are initially based on either a value associated with the stall current of the vent motor or the start spike current of the vent motor. In addition, an embodiment is provided for monitoring and storing data relating to ripple current waves associated with the operating current, so that occurrences of abnormal loads may be detected by determining whether the frequency of the monitored ripple current waves is less than a predetermined value.
    Type: Grant
    Filed: April 13, 1994
    Date of Patent: March 21, 1995
    Assignee: Prospects Corporation
    Inventors: Michael Y. Lu, Peter J. Pan, Cliff L. Chuang