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:
Apr. 16, 1996
Filed:
Apr. 21, 1994
Gary W Grube, Palatine, IL (US);
Timothy W Markison, Hoffman Estates, IL (US);
Susan L Lukasik, Lombard, IL (US);
Other;
Abstract
A method for detecting unauthorized use of a communication unit in a secure wireless communication system includes receiving, by a central controller, a service request from the communication unit via the wireless communication system. The central controller determines whether the service request is requesting an unencrypted communication resource or an encrypted communication resource. When the service request is requesting an unencrypted communication resource, the central controller determines whether the service request substantially matches a historical utilization pattern. When the service request does not substantially match the historical utilization pattern, the central controller indicates that the communication unit is a potential unauthorized communication unit.