Patents by Inventor Kai Kohlhoff

Kai Kohlhoff 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: 20230032705
    Abstract: Improved methods are provided for generating heatmaps or other summary map data from multiple users' data (e.g., probability distributions) in a manner that preserves the privacy of the users' data while also generating heatmaps that are visually similar to the ‘true’ heatmap. These methods include decomposing the average of the users' data (the ‘true’ heatmap) into multiple different spatial scales, injecting random noise into the data at the multiple different spatial scales, and then reconstructing the privacy-preserving heatmap based on the noisy multi-scale representations. The magnitude of the noise injected at each spatial scale is selected to ensure preservation of privacy while also resulting in heatmaps that are visually similar to the ‘true’ heatmap.
    Type: Application
    Filed: July 12, 2022
    Publication date: February 2, 2023
    Inventors: Vidhya Navalpakkam, Pasin Manurangsi, Nachiappan Valliappan, Kai Kohlhoff, Junfeng He, Badih Ghazi, Shanmugasundaram Ravikumar