Patents by Inventor William R. Lang, Jr.

William R. Lang, Jr. 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).

  • Microwave vehicle detector
    Patent number: 5266954
    Abstract: The present invention provides a microwave vehicle detector which includes a transceiver for transmitting microwave energy into a desired target area and for receiving reflections of this microwave energy from vehicle movement in this target area. The transceiver includes first and second diodes for enabling the microwave vehicle detector to determine the direction of vehicle movement relative to the position of the microwave vehicle detector. In this regard, these diodes are balanced, such that a predetermined phase difference will be produced between the doppler shift signals generated by these diodes. This phase difference is analyzed by a microprocessor to determine the speed and direction of the vehicle being detected.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: November 30, 1993
    Assignee: Microwave Sensors
    Inventors: David P. Orlowski, William R. Lang, Jr.