Patents by Inventor Richard R. Fletcher

Richard R. Fletcher 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).

  • Capacitively powered portable communication device and associated exciter/reader and related method
    Patent number: 6611199
    Abstract: A portable communication device uses a first electrostatic antenna element and a second electrostatic antenna element and circuitry which is coupled to the first antenna element and to the second antenna element and which derives operating power from an electrostatic field in the vicinity of the first and second antenna elements. The electrostatic field may be provided by an array of exciter elements containing both horizontal and vertical exciter elements so that at some point as a communication device is moved across the exciter antenna array, the device will have sufficient power coupled to it to power up and become operational.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: August 26, 2003
    Assignee: Motorola, Inc.
    Inventors: Theodore D. Geiszler, Larry W. Fort, George L. Lauro, Russel E. Walker, Noel H. Eberhardt, Victor Allen Vega, John H. Rolin, Sebastian Thomas Kakkanad, Richard R. Fletcher