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AssigneeInternational Business Machines Corporation
InventorsDaryl Cromer, Richard Dayan, Howard Locker, Mike Steinmetz, Jim Ward
Estimating the term…
A security system for computers defines a control zone using radiation, preferably at radio frequency, having a distinctive characteristic, such as a particular frequency. The zone may be established, for example, at a door exit or other limited passage to a secured area. The radiation triggers a device in the computer that in turn sends out a serial number signal. To further prevent unauthorized removal a personal identification number is required of the person in the zone with the computer, either by key input or an encoded radio signal. A receiver located near the control zone applies the serial number to a table look up computer that triggers an emergency signal if a match to an authorized list of serial numbers for the computer and corresponding person does not occur. The emergency signal activates a transmitter that sends out an emergency radiation signal with a different distinctive characteristic. A second receiver in the computer then responds to the emergency radiation signal to trigger the security logic to render the computer inoperative.
A security system comprising:
A checkpoint apparatus for automatically disabling computer systems passing through a control zone which have a tag responsive to a radiation with a distinctive characteristic to trigger radiation of a coded system identification signal and radiation activated disabling logic , said checkpoint apparatus comprising:
Dependencies are inferred from the claim text.