Patents by Inventor Nikolaos Prelorentzos

Nikolaos Prelorentzos 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).

  • Duplicate Address Detection Optimisation
    Publication number: 20080159222
    Abstract: Duplicate Address Detection Optimisation is achieved by allocating a temporary address to a mobile node by an access muter that it uses to receive time critical data whilst the conventional DAD process completes on An address generated by the mobile node itself.
    Type: Application
    Filed: April 1, 2005
    Publication date: July 3, 2008
    Inventors: Ammad Akram, Nikolaos Prelorentzos
  • Cryptographic Optimisation for Duplicate Address Detection
    Publication number: 20080019318
    Abstract: Cryptographic Optimisation for Duplicate Address Detection Cryptographic Optimisation for Duplicate Address Detection is achieved by providing access routers with the cryptographic key and auxiliary parameters such that the access routers can generate CGA addresses on behalf of the MN and return these CGA addresses to the MN.
    Type: Application
    Filed: April 1, 2005
    Publication date: January 24, 2008
    Inventors: Ammad Akram, Nikolaos Prelorentzos
  • Method for releasing allocated resources at sip handover
    Publication number: 20070195732
    Abstract: When mobile communication is handed over from a first link to a second like, in order to relinquish resources as soon as possible, the release of resources allocated to the first link is initiated in response to the generation of the ACK signal by the mobile node, rather than waiting for a refresh command to time out.
    Type: Application
    Filed: September 13, 2004
    Publication date: August 23, 2007
    Inventors: Ammad Akram, Nikolaos Prelorentzos
  • Data re-routing method for dual mode terminal after handover
    Publication number: 20070047504
    Abstract: A dual mode (e.g. WLAN/UMTS) terminal with two network interfaces sends one interface to sleep mode following handover from one network to the other. Here sleep mode is synchronised with the end of the data stream, either by marking the stream or in response to sending a handover related SIP ACK message to the corresponding node.
    Type: Application
    Filed: June 15, 2004
    Publication date: March 1, 2007
    Inventors: Ammad Akram, Nikolaos Prelorentzos, Makis Kasapidis