Patents by Inventor Charles H. Grove

Charles H. Grove 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).

  • Patent number: 4910396
    Abstract: A switching matrix enables switching of optical signals from any of a plurality of optical input paths to selected optical output paths, without requiring physical re-connecting of the inputs or outputs. Plural broad-band optical waveguides are defined preferably in otherwise non-transmissive quartz crystalline wafers, to provide relatively high signal isolation. The wafers are fused to electronic shutter windows situated in an array and discretely operable under processor x-y address control. Optical signals passed through actuated electronic shutter windows are summed in output wafers, having waveguide structure generally reverse to that of the input quartz wafers. Through selected segment actuation, optical signals from selected optical input paths may be transmitted or blocked at the electronically controlled shutter array, for being output on selected optical output paths. Alternatively, fiber optic bundles may replace input or output quartz wafers.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: March 20, 1990
    Inventor: Charles H. Grove
  • Patent number: 4100487
    Abstract: An apparatus for monitoring current waveforms produced by lightning strikes which generate currents in an elongated cable. These currents are converted to voltages and to light waves for being transmitted over an optical cable to a remote location. At the remote location the waves are reconstructed back into electrical waves for being stored into a memory. The information is stored within the memory with a timing signal so that only different signals need be stored in order to reconstruct the wave form.
    Type: Grant
    Filed: March 30, 1977
    Date of Patent: July 11, 1978
    Inventors: James C. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Fletcher, Ronald J. Wojtasinski, Jerry C. Fuchs, Charles H. Grove