Patents by Inventor Hans G. Gudesen

Hans G. Gudesen 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).

  • Patent number: 7646629
    Abstract: In a method for obviating the effect of disturb voltages in a data storage apparatus employing passive matrix addressing, an application of electric potentials for an addressing operation is according to a voltage pulse protocol. The data storage cells of the apparatus are provided in two or more electrically separated segments each constituting non-overlapping physical address subspaces of the data storage apparatus physical address space. A number of data storage cells in each segment are preset to the same polarization by an active voltage pulse with a specific polarization. In a first addressing operation one or more data storage cells are read by applying an active pulse with the same polarization to each data storage cell and recording the output charge response. On basis thereof the output data in subsequent second addressing operation are copied onto preset data storage cells in another segment of the data storage apparatus, this segment being selected on the basis of its previous addressing history.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: January 12, 2010
    Assignee: Thin Film Electronics ASA
    Inventors: Per Hamberg, Christer Karlsson, Per-Erik Nordal, Nicklas Ojakangas, Johan Carlsson, Hans G. Gudesen
  • Patent number: 7482624
    Abstract: In an organic electronic circuit, particularly a memory circuit with an organic ferroelectric or electret material the active material comprises fluorine atoms and consists of various organic materials. The active material is located between a first electrode and a second electrode. A cell with a capacitor-like structure is defined in the active material and can be accessed for an addressing operation via the first and the second electrode. At least one of these electrodes comprises a layer of chemically modified gold. In a passive matrix-addressable electronic device, particularly a ferroelectric or electret memory device, circuits of this kind with the active material as a ferroelectric or electret memory material form the elements of a matrix-addressable array and define the memory cells provided between first and second set of addressing electrodes. At least the electrodes of at least one of the sets then comprise at least a layer of gold.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: January 27, 2009
    Assignee: Thin Film Electronics Asa
    Inventors: Rickard Liljedahl, Mats Sandberg, Göran Gustafsson, Hans G. Gudesen