Patents by Inventor Werner Drexel

Werner Drexel 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).

  • Communication method having selectable response signal strength levels
    Patent number: 8552841
    Abstract: A communication method in a system having a reader and at least one transceiver, the method including the reader selecting a response signal strength level from a plurality of response signal strength levels; and establishing communication between the reader and the at least one transceiver at the selected response signal strength level.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: October 8, 2013
    Assignee: Infineon Technologies AG
    Inventors: Peter Raggam, Martin Buchsbaum, Christian Pontesegger, Martin Liebl, Werner Drexel
  • Apparatus for providing a random bit stream
    Patent number: 7664807
    Abstract: An apparatus for providing a random bit stream includings a first provider for providing a clock signal, a second provider for providing a sample signal, an activator for activating the first and second providers such that a sampling edge of the sample signal is aligned to an edge of the clock signal. The apparatus further includes a sampler for sampling the clock signal responsive to the sampling edge of the sample signal and for generating a random bit dependent on the sampled state of the clock signal. Further, the apparatus includes a deactivator for deactivating the first and second providers. Successive random bits form a random bit stream.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: February 16, 2010
    Assignee: Infineon Technologies AG
    Inventors: Raimondo Luzzi, Marco Bucci, Holger Bock, Werner Drexel
  • COMMUNICATION METHOD HAVING SELECTABLE RESPONSE SIGNAL STRENGTH LEVELS
    Publication number: 20090278665
    Abstract: A communication method in a system having a reader and at least one transceiver, the method including the reader selecting a response signal strength level from a plurality of response signal strength levels; and establishing communication between the reader and the at least one transceiver at the selected response signal strength level.
    Type: Application
    Filed: May 7, 2008
    Publication date: November 12, 2009
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Peter Raggam, Martin Buchsbaum, Christian Pontesegger, Martin Liebl, Werner Drexel
  • APPARATUS FOR PROVIDING A RANDOM BIT STREAM
    Publication number: 20070043797
    Abstract: An apparatus for providing a random bit stream includings a first provider for providing a clock signal, a second provider for providing a sample signal, an activator for activating the first and second providers such that a sampling edge of the sample signal is aligned to an edge of the clock signal. The apparatus further includes a sampler for sampling the clock signal responsive to the sampling edge of the sample signal and for generating a random bit dependent on the sampled state of the clock signal. Further, the apparatus includes a deactivator for deactivating the first and second providers. Successive random bits form a random bit stream.
    Type: Application
    Filed: July 21, 2006
    Publication date: February 22, 2007
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Raimondo Luzzi, Marco Bucci, Holger Bock, Werner Drexel