Patents by Inventor May M. Tan

May M. Tan 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).

  • Reflection reducing directional coupler
    Patent number: 5966057
    Abstract: A reflection reducing directional coupler provides an output signal from a coupled signal while reducing the effect of an input signal. The directional coupler provides circuitry to divide, phase delay and vectorially add signals to provide coherent output and coupled signals and reduce reflected signals. The directional coupler also provides the capability to input a calibration signal into a system while mininimizing the effect of the calibration signal on the output signal.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: October 12, 1999
    Assignee: TRW Inc.
    Inventors: Mark Kintis, May M. Tan