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:
Dec. 05, 2000
Filed:
Mar. 03, 1997
Applicant:
Inventor:
Charles P Schultz, Hialeah, FL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
380273 ; 380249 ; 380277 ;
Abstract
A communication device (122) supports secure communications using automated encryption key scheduling. The communication device (122) is provided with access to one or more schedules having entries of specific time periods, such as date and time of day information, that govern selection of encryption keys. A schedule is selected and accessed using current time information to obtain an encryption key (310, 320, 330). Subsequent communications are conducted using the obtained encryption key (340).