Patents by Inventor Wayne W. Lam

Wayne W. Lam 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).

  • Focal plane imaging array with internal calibration source
    Patent number: 5438336
    Abstract: A focal plane imaging array (FPIA) (16) for use in a direct detection imaging device (10) for conducting radiometric imaging at microwave and millimeter-wave frequencies is disclosed as having an internal electronic calibration source (36). The plurality of energy detecting pixel elements (14) which comprise the FPIA (16) include a detection circuit (34) and a calibration circuit (36). The calibration circuit (36) is uni-directionally coupled to the detection circuit (34) to allow a known calibration signal "pulse" to be introduced into the detection circuit (34). The calibration pulse is processed by the pixel detection circuit and the output signal is compared with the pixel's responsivity value. Adjustments in the pixel gain and sensitivity may then be made as appropriate.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: August 1, 1995
    Assignee: TRW Inc.
    Inventors: Paul S. C. Lee, Pei-Ming D. Chow, John J. Berenz, Jay S. Pearlman, Wayne W. Lam
  • Active patch antenna transmitter
    Patent number: 5309163
    Abstract: A "packageless" diode chip is integrated into a microstrip patch antenna. Application of DC current to the device results in efficient radiation of high powered microwave frequency signals directly into free space.
    Type: Grant
    Filed: September 12, 1991
    Date of Patent: May 3, 1994
    Assignee: TRW Inc.
    Inventors: Yiu C. Ngan, Wayne W. Lam, Yoshio Saito