Patents by Inventor James E. Beasley

James E. Beasley 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).

  • Bi-directional current switch
    Patent number: 4698521
    Abstract: A bi-directional current switch is provided which serves as a DC coupler mixer driver for PSK modulators. The invention includes a first switchable current source for selectively providing one of at least two current flow rates at an output node. A second current source acts as a sink and provides a steady state current flow rate out of said node. When the first current source is switched on, the output current is reversed. The invention thereby provides bi-directional current switching in response to a logical input signal.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: October 6, 1987
    Assignee: Hughes Aircraft Company
    Inventors: James E. Beasley, Steven M. Lindsey