Patents by Inventor Donald J. Savage

Donald J. Savage 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).

  • Device for economizing data bandwidth
    Patent number: 4386321
    Abstract: Subharmonics of a data waveform are generated for the purpose of reducing ta bandwidth prior to transmission. Input data waveform is phase split and the antiphased output signals are fed to a rectifier. The rectification of antiphased signals creates two pulsating voltage with opposite polarity. The pulsating voltages are alternately switched by a chopper to provide a sinusoidal signal. The sinusoidal signal is filtered to average the energy of the pulsating voltage to provide a smooth waveform of one-half the frequency of the input data waveform.
    Type: Grant
    Filed: June 2, 1981
    Date of Patent: May 31, 1983
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Donald J. Savage