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:
Nov. 12, 2002
Filed:
Jul. 08, 1998
Jose Gutman, Boynton Beach, FL (US);
Thomas Ray Braxton, Boynton Beach, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A communication device having a theft deterrence feature includes a selective call receiver ( ), a transmitter ( ), a memory ( ) coupled to the selective call receiver and containing an encryption key ( ) and an address ( ), a secure memory ( ) coupled to the selective call receiver containing secure data that is accessible with the encryption key and further containing a stealth code, a tampering detection circuit ( ) for detection of unauthorized use by an unauthorized user of the communication device or another electronic device coupled to the selective call device, and a processor ( ). When the processor detects unauthorized use, it is to delete the encryption key, transmit a stealth code to a base station transparent to the unauthorized user when unauthorized use is detected, and receive data into the secure memory location transparent to an unauthorized user of the communication device.