Patents by Inventor Bortolo Mario Pradal

Bortolo Mario Pradal 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).

  • High signal-to-noise ratio negative resistance crystal oscillator
    Patent number: 4096451
    Abstract: A high signal-to-noise crystal oscillator is provided, including a transistor and a crystal coupled across the input thereof. The oscillator further includes series connected capacitors coupled across the crystal and between the base electrode of the transistor and reference potential with the emitter coupled to the junction of said series connected capacitors. The value of the series connected capacitor is selected to be such that the ratio of the total capacitance between the emitter to ground to the total capacitance between the base and emitter electrodes is on the order of 5.4 to 1 to 3.9 to 1.
    Type: Grant
    Filed: April 26, 1977
    Date of Patent: June 20, 1978
    Assignee: RCA Corporation
    Inventor: Bortolo Mario Pradal