Patents by Inventor Helene DÖRKSEN

Helene DÖRKSEN 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).

  • Publication number: 20230081662
    Abstract: A device for the in-ovo determination of the sex of a fertilized bird egg, having a light source for emitting excitation radiation for exciting fluorescence in a region inside the bird egg, a spectroscopic apparatus for analysing, in a temporally and/or spectrally-resolved manner, fluorescence radiation emitted from the region inside the bird egg, an evaluation unit for determining the sex from the data determined by means of the spectro-scopic apparatus and a measuring head for jointly transmitting the excitation radiation into the bird egg and receiving the fluorescence radiation from the bird egg. The measuring head has an optical fibre system with a head end for transmitting the excitation radiation and receiving the fluorescence radiation.
    Type: Application
    Filed: January 15, 2021
    Publication date: March 16, 2023
    Inventors: Helene DÖRKSEN, Jürgen KRAHL, Jens STAUFENBIEL
  • Patent number: 9947163
    Abstract: A method of authenticating security documents and a mobile device, especially a smartphone, programmed to carry out the method, based on an analysis of features which are produced by intaglio printing, which analysis involves a decomposition of sample images of a candidate document to be authenticated based on Wavelets, each sample image being digitally processed by performing a Wavelet transform of the sample image in order to derive a set of classification features. The method is based on an adaptive approach, which includes the following steps: —prior to carrying out the Wavelet transform, defining a categorization map containing local information about different intaglio line structures that are found on the security documents; —carrying out a Wavelet selection amongst a pool of Wavelet types based on the categorization map; and —performing the Wavelet transform of the sample image on the basis of the selected Wavelet.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: April 17, 2018
    Assignee: KBA-NotaSys SA
    Inventors: Volker Lohweg, Jan Leif Hoffmann, Helene Dörksen, Roland Hildebrand, Eugen Gillich, Jürg Hofmann, Johannes Georg Schaede
  • Publication number: 20160012658
    Abstract: A method of authenticating security documents and a mobile device, especially a smartphone, programmed to carry out the method, based on an analysis of features which are produced by intaglio printing, which analysis involves a decomposition of sample images of a candidate document to be authenticated based on Wavelets, each sample image being digitally processed by performing a Wavelet transform of the sample image in order to derive a set of classification features. The method is based on an adaptive approach, which includes the following steps: —prior to carrying out the Wavelet transform, defining a categorization map containing local information about different intaglio line structures that are found on the security documents; —carrying out a Wavelet selection amongst a pool of Wavelet types based on the categorization map; and —performing the Wavelet transform of the sample image on the basis of the selected Wavelet.
    Type: Application
    Filed: February 4, 2014
    Publication date: January 14, 2016
    Applicant: KBA-NOTASYS SA
    Inventors: Volker LOHWEG, Jan Leif HOFFMANN, Helene DÖRKSEN, Roland HILDEBRAND, Eugen GILLICH, Jürg HOFMANN, Johannes Georg SCHAEDE