Patents by Inventor Heike B. Neumann

Heike B. Neumann 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).

  • System of providing a fixed identification of a transponder while keeping privacy and avoiding tracking
    Patent number: 9418249
    Abstract: Transponder (180) having stored a fixed identification number, which expands said identification number with a random number, encrypts said expanded number with a key, and sends it to a reader (160) on its request. Reader (160), which on request receives an encrypted number from a transponder (180), decrypts a received encrypted number with a key, which was also used by the transponder (180), and extracts a fixed identification number associated with the transponder (180).
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: August 16, 2016
    Assignee: NXP B.V.
    Inventors: Peter Thueringer, Hans De Jong, Bruce Murray, Heike B. Neumann, Paul Hubmer, Susanne Stern
  • METHOD OF GENERATING PSEUDO-RANDOM NUMBERS
    Publication number: 20090150467
    Abstract: A method of generating a pseudo-random number by means of an iteration, comprising at least two iteration steps, applied to a one-way function, wherein the one-way function, based on a start value and a key, generates part of the pseudo-random number and wherein the iteration is initialized with a random start value and a random key, and wherein, in each iteration step, both the start value and the key for an iteration step are determined from the part of the pseudo-random number determined in the previous iteration step using the one-way function.
    Type: Application
    Filed: October 10, 2006
    Publication date: June 11, 2009
    Applicant: NXP B.V.
    Inventors: Heike B. Neumann, Steffen Scholze, Matthias Voegeler