Patents by Inventor Howard Burger

Howard Burger 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).

  • Modulation system for evoked response stimulation and method
    Patent number: 4815475
    Abstract: A modulation system used for non-surgical biomedical stimulation and for research in the area of evoked responses and a method thereof is described. The modulation system comprises an AND gate used to gate the interaction of a variable frequency oscillator with the inputs from a manual safety and control switch connected to an inverter which is connected to a third input of the AND gate. A second variable frequency oscillator has a non-inverted output Q. The non-inverted output Q is connected to the second input of the AND gate. The second variable frequency oscillator has an on/off duty cycle. The first variable frequency oscillator has an output which has a pulse repetition waveform. The output of the first variable frequency oscillator is connected to the first input of the AND gate. The pulse repetition waveform of the first variable frequency oscillator has a frequency 100 times greater than the range of the non-inverted output Q frequency.
    Type: Grant
    Filed: June 2, 1987
    Date of Patent: March 28, 1989
    Inventor: Howard Burger