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. 14, 1996
Filed:
Apr. 21, 1994
Gary W Grube, Palatine, IL (US);
Timothy W Markison, Hoffman Estates, IL (US);
Susan L Lukasik, Lombard, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A method for detecting unauthorized use of a communication unit (102) in a secure wireless communication system includes monitoring (201) a wireless communication channel (103) presently supporting a secure communication. It is determined (202) whether the secure communication is encrypted with active system encryption parameters. When the secure communication is not encrypted with the active system encryption parameters, a communication unit (102) involved in the secure communication is indicated (203) as a potential unauthorized communication unit (102). The steps of monitoring, determining, and indicating are performed by a communication unit (102) or a central controller (101).