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:
May. 04, 1993
Filed:
Mar. 15, 1991
Applicant:
Inventors:
John T Bartucci, Schaumburg, IL (US);
Kevin M Cutts, Schaumburg, IL (US);
Jeffrey J Brzozowski, Arlington Heights, IL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
380 45 ; 380 21 ; 380 47 ;
Abstract
A method for storing and managing rekeying information for a secure communication system, as well as for carrying out a rekeying operation. Encryption key variables stored in memory (301) are represented by mnemonics (303) as part of an editable data base (302) that is arranged in the same order as communication unit key storage locations. Each communication unit (305) within the system is assigned to a specific group (304), while each group (304) is assigned to a particular editable data base (302).