A Bluetooth based security system utilized to provide ad-hoc security services to secured assets. Such a Bluetooth based security system comprises a secured device (SD) equipped with Bluetooth (BT) technology; a plurality of Bluetooth Access Points (BTAPs) located at designated points to establish a...http://www.google.co.uk/patents/US20020194500?utm_source=gb-gplus-sharePatent US20020194500 - Bluetooth based security system
