Patent ID: 8224248
Filing Date: 2012-07-17
Classification: G08B,H04L,H04M

Abstract:
1. A portable data storage device comprising: an interface for connecting to a mobile telecommunications network and for communicating with a central network control center to transmit data to the central network control center; a data input interface for receiving data from a user; an output display for displaying data to a user; an audible or vibrating alert; an interface implementing a short-range communication link with a backup security device; a memory for storing data including contact and calendar information and data for transmission to the backup security device; a processor having a registration procedure to register the backup security device, wherein registering comprises transmitting a unique identifier associated with the portable data storage device, the processor communicating with the backup security device via the interface to transmit the unique identifier at a predetermined interval, wherein the predetermined interval is user defined or selected from a range of intervals; a monitoring component for detecting breakdown of the short-range communication link; wherein the processor, when operable, further initiates an alert procedure on detection of a breakdown of the short-range communication link; and wherein the alert procedure comprises rendering the portable data storage device at least partially inoperable on initiation of the alert procedure.