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:
Sep. 07, 1993
Filed:
May. 22, 1992
Applicant:
Inventors:
Charles J Malek, Crystal Lake, IL (US);
Greg G Gravunder, Kenosha, WI (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
380 48 ; 380 49 ; 455 331 ; 379 59 ;
Abstract
In a wireless communication system comprising a plurality of fixed communication units (FCUs) (102) and portable communication units (PCUs) (120), each comprising an encryption synchronization counter (ESC) (314, 414), the PCU and FCU having a digital transmission format (201), a method of maintaining encryption and decryption throughout a hand-off is shown, comprising the steps of:
Malek, Charles. (1993). Method and apparatus for maintaining continuous synchronous encryption (U.S. Patent No. 5243653). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5243653
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile