Resources Contact Us Home Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE     Method for managing traffic encryption key in wireless portable internet system and protocol configuration method thereof, and operation method of traffic encryption key state machine in subsc Image Number 13 for United States Patent #7907733. Disclosed is a traffic encryption key (TEK) management method for automatically generating a TEK for a multicast or broadcast service by a base station to periodically update a TEK used by a subscriber station. The base station transmits the first Key Update Command message for updating a group key encryption key (GKEK) for encrypting the TEK and the second Key Update Command message for updating the TEK to the subscriber station to update the TEK. The base station establishes an M & B TEK Grace Time which is different from a TEK Grace Time established by the subscriber station, transmits the first message including a new GKEK to the subscriber station through a primary management connection before the M & B TEK Grace Time, and transmits the second message including a new TEK encrypted with the new GKEK thereto through a broadcast connection after the M & B TEK Grace Time.       Recently Added Patents Device for determining a contact surface length of a vehicle tire Compositions and methods for diagnosing, treating, and preventing prostate conditions Optical assemblies for a color measurement instrument Semiconductor light emitting device and method for manufacturing same Adhesive and multilayer structure having the same Method of forming a package for MEMS-based fuel cell Reduction of timing jitter in a passive Q-switched solid state laser   Randomly Featured Patents Expansion pig Oxygen post-treatment of plastic surfaces coated with plasma polymerized silicon-containing monomers Positive photosensitive resin composition, cured film, protecting film, insulating film and semiconductor and display devices using the same 1149.1 tap linking modules Method for design and manufacture of insoles Monitoring device for a tracking system Utility bag Automobile body Risk-cost analysis of currency exposure reduction for currency exposure management Crystal etch monitor © 2006-2008 PatentGenius. All Rights Reserved.