The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 27, 1999
Filed:
Oct. 09, 1996
Applicant:
Inventors:
Brian Kevin Daly, Redmond, WA (US);
Leslie Dale Owens, Issaquah, WA (US);
Assignee:
AT&T Wireless Services Inc, Kirkland, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
380 21 ; 380 30 ;
Abstract
A set of Diffie-Hellman data encryption values is generated prior to receiving a request for the data encryption values. The data encryption values are then stored in a database. The generating and storing steps are performed repeatedly thus creating a stored table of data encryption values in the database. When a new user calls to activate a mobile station, a cellular network can select from among precalculated Diffie-Hellman data encryption values immediately transmit the values to the mobile station.