Patents by Inventor Klaus Eichel

Klaus Eichel 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).

  • Phase-loched loop circuits and voltage controlled oscillator circuits
    Patent number: 5650754
    Abstract: Voltage controlled oscillator (VCO) circuits include a VCO and voltage regulator provided on an integrated VCO module, balanced control input for the VCO, buffering of the VCO and frequency multiplication of the VCO output signal. Such improved VCO circuits are especially useful in phase-locked loop (PLL) circuits. Improved PLL circuits are also provided, including a PLL circuit with separate analog and digital grounds.
    Type: Grant
    Filed: February 15, 1995
    Date of Patent: July 22, 1997
    Assignee: Synergy Microwave Corporation
    Inventors: Shankar R. Joshi, Ulrich L. Rohde, Klaus Eichel