Patents by Inventor Paul T. M. van Zeijl

Paul T. M. van Zeijl 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).

  • Integrated oscillators and tuning circuits
    Patent number: 6268779
    Abstract: An integrated Voltage controlled oscillator (VCO) includes varactors and fixed capacitors formed in a “stacked” arrangement. Forming the VCO integrated circuit by “stacking” fixed capacitors upon underlying varactors frees up semiconductor surface area for use by other circuit components or permits the implementation of a smaller integrated circuit package. “Stacking” further permits a decrease in parasitic capacitance associated with interconnections between the fixed capacitors and other components of the VCO.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: July 31, 2001
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Paul T. M. van Zeijl