Patents by Inventor Robert Olheide-Koehler

Robert Olheide-Koehler 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).

  • SECURITY IN TELECOMMUNICATIONS SYSTEMS
    Publication number: 20110243322
    Abstract: Security of communications between a mobile terminal 1 and a cellular network node (base station 3) is enhanced. A communication session transmitted on a first traffic channel ‘0’ is encrypted using a key ‘KA’. The security is enhanced by causing the communication channel to change to a second communication channel ‘7’ after a predetermined time, preferably very quickly after establishing the key. In one embodiment the communication channel then changes to a third communication channel ‘25’ after a predetermined time. In another embodiment the communication session is encrypted using a second key ‘KB’after causing the communication channel to change to the second communication channel ‘7’.
    Type: Application
    Filed: January 19, 2009
    Publication date: October 6, 2011
    Applicant: VODAFONE GROUP PLC
    Inventors: Christopher Pudney, Steven Babbage, Alberto Gomez, Miguel Arranz, Robert Olheide-Koehler