Patents by Inventor Martinus Hermanus Wilhemus Maria Van Delden

Martinus Hermanus Wilhemus Maria Van Delden 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).

  • Tunable piezoelectric filter arrangement using a dielectric material with a voltage-dependent dielectric constant
    Patent number: 6653913
    Abstract: The invention describes a tunable filter arrangement with at least two resonators which are coupled to one another and of which at least one is connected to a capacitor with tunable capacitance. The electrical properties of the resonator, and thus the overall filter characteristic, can be changed through a change in the capacitance of the capacitor. Furthermore, a transmitter, a receiver, a mobile telephone device, and a wireless data transmission system comprising such a filter arrangement are disclosed, as is a tunable bulk acoustic wave resonator.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: November 25, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Mareike Katharine Klee, Robert Frederick Milsom, Hans Peter Löbl, Rainer Kiewitt, Uwe Mackens, Martinus Hermanus Wilhemus Maria Van Delden, Wilhelm Georg Hermann, Olaf Wunnicke
  • Tunable filter arrangement comprising resonators with reflection layers
    Patent number: 6583688
    Abstract: The invention describes a tunable filter arrangement with a plurality of resonators which are coupled to one another and of which there is at least one which comprises a piezoelectric component made of a ferroelectric material and to which a DC voltage source is connected. The application of a DC voltage to the resonator renders it possible to change its electrical properties and thus the overall filter characteristic. Furthermore, a transmitter, a receiver device, and a mobile telephone device with such a filter arrangement are disclosed, aswell as a tunable bulk acoustic wave resonator.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: June 24, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Mareike Katharine Klee, Robert Frederick Milsom, Hans Peter Löbl, Rainer Kiewitt, Uwe Mackens, Martinus Hermanus Wilhemus Maria Van Delden, Wilhelm Georg Hermann, Olaf Wunnicke
  • Tunable filter arrangement
    Publication number: 20010048352
    Abstract: The invention describes a tunable filter arrangement with at least two resonators which are coupled to one another and of which at least one is connected to a capacitor with tunable capacitance. The electrical properties of the resonator, and thus the overall filter characteristic, can be changed through a change in the capacitance of the capacitor.
    Type: Application
    Filed: April 5, 2001
    Publication date: December 6, 2001
    Inventors: Mareike Katharine Klee, Robert Frederick Milsom, Hans Peter Lobl, Rainer Kiewitt, Uwe Mackens, Martinus Hermanus Wilhemus Maria Van Delden, Wilhelm Georg Hermann, Olaf Wunnicke
  • Tunable filter arrangement comprising resonators
    Publication number: 20010028285
    Abstract: The invention describes a tunable filter arrangement with a plurality of resonators which are coupled to one another and of which there is at least one which comprises a piezoelectric component made of a ferroelectric material and to which a DC voltage source is connected. The application of a DC voltage to the resonator renders it possible to change its electrical properties and thus the overall filter characteristic.
    Type: Application
    Filed: April 5, 2001
    Publication date: October 11, 2001
    Inventors: Mareike Katharine Klee, Robert Frederick Milsom, Hans Peter Lobl, Rainer Kiewitt, Uwe Mackens, Martinus Hermanus Wilhemus Maria Van Delden, Wilhelm Georg Hermann, Olaf Wunnicke