Patents by Inventor Joseph H. Kiser

Joseph H. Kiser 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).

  • Orthogonally mounted substrate based resonators
    Patent number: 5867069
    Abstract: A resonator includes a substrate to which are attached trimmable capacitance and inductance portions which together with a varactor and transistor form an oscillator circuit. The substrate mounts orthogonally in a slot on an oscillator board to reduce microphonic effects from a cover that otherwise would degrade the oscillator performance.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: February 2, 1999
    Assignee: Vari-L Company, Inc.
    Inventor: Joseph H. Kiser
  • Continuously adjustable resonator
    Patent number: 5856769
    Abstract: A resonator for a high frequency electric oscillator is disclosed. The resonator is and integrated capacitor and inductor. The capacitance and inductance of the resonator are continuously and simultaneously adjustable. The resonator includes a coaxial portion and a conductor portion. The coaxial portion has an inner dielectric with a longitudinal aperture and an outer conductive sheath or outer conductor. The conductor portion has a straight section slidable in the aperture and a V shaped bent or oblique section.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: January 5, 1999
    Assignee: Vari-L Company, Inc.
    Inventor: Joseph H. Kiser
  • Oscillator voltage regulator
    Patent number: 5675478
    Abstract: An oscillator voltage regulator includes a substantially constant voltage device in series with the bias network dividing resistors to reduce current flow and provide a substantially constant voltage drop, and an impedance connected between the first and second resistors of the dividing resistors and the tank circuit and the base of the amplifier transistor so as to reduce the loading on the tank circuit and so as to improve stability, reduce phase noise, and increase power output from the amplifier. The use of a silicon PN junction and a NPN transistor provides temperature compensation for hot and cold ambients to allow the oscillator to operate with substantially a constant supply current.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: October 7, 1997
    Assignee: Vari-L Company, Inc.
    Inventor: Joseph H. Kiser
  • Wide range electronic oscillator
    Patent number: 4621241
    Abstract: An oscillator disclosed has a resonant tank circuit inclusive of an inductor (L1), a capacitor (C1), a capacitor (C3) and a capacitor (C4) connected in series with one another. A signal amplifier (A) is connected in a feedback loop which includes capacitor (C3). An additional impedance (C5) is connected between the feedback output of the amplifier and the feedback signal dividing capacitors (C3) and (C4). This additional impedance (C5) improves tuning range, tuning linearity, phase noise performance, and provides a very flat power output at ultra high frequencies.
    Type: Grant
    Filed: June 7, 1985
    Date of Patent: November 4, 1986
    Assignee: Vari-L Company, Inc.
    Inventor: Joseph H. Kiser