Patents by Inventor Herschel Akiba Ainspan

Herschel Akiba Ainspan 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).

  • Voltage-controlled oscillator with centertap bias
    Patent number: 11496094
    Abstract: A voltage-controlled oscillator comprises a varactor. A capacitance of the first varactor is dependent upon a control voltage. The voltage-controlled also comprises an inductor. The inductor is connected to a center-tap connection. The voltage-controlled oscillator also comprises a power source. The power source is configured to provide a bias voltage to the inductor through the center-tap connection. The voltage-controlled oscillator also comprises a coupling capacitor. The coupling capacitor is located between the inductor and the varactor. The voltage-controlled oscillator also comprises a coupling resistor. The coupling resistor is located between the coupling capacitor and the center-tap connection. The center-tap connection provides the bias voltage to the coupling capacitor through the coupling resistor.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: November 8, 2022
    Assignee: International Business Machines Corporation
    Inventors: James Strom, Herschel Akiba Ainspan, Andrew D. Davies, John Borkenhagen
  • VOLTAGE-CONTROLLED OSCILLATOR WITH CENTERTAP BIAS
    Publication number: 20220345085
    Abstract: A voltage-controlled oscillator comprises a varactor. A capacitance of the first varactor is dependent upon a control voltage. The voltage-controlled also comprises an inductor. The inductor is connected to a center-tap connection. The voltage-controlled oscillator also comprises a power source. The power source is configured to provide a bias voltage to the inductor through the center-tap connection. The voltage-controlled oscillator also comprises a coupling capacitor. The coupling capacitor is located between the inductor and the varactor. The voltage-controlled oscillator also comprises a coupling resistor. The coupling resistor is located between the coupling capacitor and the center-tap connection. The center-tap connection provides the bias voltage to the coupling capacitor through the coupling resistor.
    Type: Application
    Filed: April 26, 2021
    Publication date: October 27, 2022
    Inventors: James Strom, Herschel Akiba Ainspan, Andrew D. Davies, John Borkenhagen
  • Varactor system having real or apparent low capacitance density
    Patent number: 7498894
    Abstract: A system in one embodiment includes a voltage controlled oscillator; at least two varactors coupled to a tank node, each of the varactors being of a different physical size, the tank node being coupled to the voltage controlled oscillator; and switches for selectively turning the varactors on and off, wherein switching a first of the varactors from off to on and a second of the varactors from on to off creates a capacitance step of less than about 10 fF thereby tuning the voltage controlled oscillator from a first state to a second state.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: March 3, 2009
    Assignee: International Business Machines Corporation
    Inventors: Herschel Akiba Ainspan, Daniel Joseph Friedman, Alexander V. Rylyakov, Jose A. Tierno