Patents by Inventor William S. Winholtz

William S. Winholtz 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).

  • Vocal demodulator
    Patent number: 5134657
    Abstract: Speech analysis apparatus for detection and measurement of low frequency amplitude and frequency modulations, tremor, of the fundamental frequency. A microphone signal of sustained phonation is input to the apparatus which demodulates and measures five parameters digitally displayed; fundamental frequency, amplitude demodulated frequency, amplitude demodulated level, frequency demodulated frequency, and frequency demodulated level. Demodulated outputs are provided for external analysis. A variable cutoff low pass filter maintains cutoff at 1.5 times the fundamental input frequency.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: July 28, 1992
    Inventor: William S. Winholtz