Patents by Inventor Robert J. Aleksa

Robert J. Aleksa 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).

  • Pin diode attenuator RF pulse generator with pulse rise and fall time control
    Patent number: 5003195
    Abstract: A capacitor is charged and discharged through switch selectable resistors from regulated DC voltage supplies and clamping diodes to provide the bias signal to control the rise and fall times of the RF output pulse of a PIN diode attenuator. An isolation buffer isolates charging and discharging transients from the bias signal. An adjustable AC gain and adjustable DC offset inverting amplifier provides the isolation buffered signal to a high impedance, very low output AC impedance source for driving the bias input of the PIN diode attenuator. The DC offset is provided by an adjustable regulated voltage source coupled to the inverting amplifier.
    Type: Grant
    Filed: March 10, 1989
    Date of Patent: March 26, 1991
    Assignee: Honeywell Inc.
    Inventors: Desi Stelling, Robert J. Aleksa, Nicholas J. Wilt
  • Fault tolerant oscillator circuit having redundant resonant elements
    Patent number: 4745376
    Abstract: An oscillator having a multiplicity of resonant structures parallel coupled to form a fault tolerant resonator in the feedback circuit of the oscillator. This fault tolerant resonator permits the oscillator to operate in a near fault free manner after the failure of one or more of the resonant structures.
    Type: Grant
    Filed: February 6, 1987
    Date of Patent: May 17, 1988
    Assignee: Honeywell Inc.
    Inventors: Robert J. Aleksa, Carl L. Shore, Richard Hobby