Secure identification system
First Claim
1. A system comprising:
- a first circuit and a second circuit spatially mobile with respect to one another, and a third circuit comprising an input/output portion effective for electronic communication outside said third circuit via said input/output portion;
said first and second circuits being adapted to be in periodic communication with one another within a preselected spatial range;
said second circuit is adapted, responsive to said periodic communication, to identify whether said first circuit is a preselected approved circuit;
said second circuit is further adapted, upon failure of said second circuit to identify said approved circuit within a preselected time, to disable said input/output portion of said third circuit effective to prevent said electronic communication.
1 Assignment
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Accused Products
Abstract
A system in which two circuits which are spatially mobile with respect to one another communicate with one another over a preselected range to identify themselves. So long as the communication remains, one of the circuits, called a detector, maintains the input/output of a third circuit enabled. Upon breaking communication, for example by one of the circuits moving outside the preselected range, input/output of the third circuit is disabled. In one embodiment, the third circuit is a computer workstation to which the detector is affixed, and the other circuit, called the agent, is worn or carried by an authorized user of the workstation. This permits the workstation to be available to the user while he is present, and become unavailable in general when he is not.
24 Citations
13 Claims
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1. A system comprising:
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a first circuit and a second circuit spatially mobile with respect to one another, and a third circuit comprising an input/output portion effective for electronic communication outside said third circuit via said input/output portion; said first and second circuits being adapted to be in periodic communication with one another within a preselected spatial range; said second circuit is adapted, responsive to said periodic communication, to identify whether said first circuit is a preselected approved circuit; said second circuit is further adapted, upon failure of said second circuit to identify said approved circuit within a preselected time, to disable said input/output portion of said third circuit effective to prevent said electronic communication. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification